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Projector including liquid crystal cell (s)

Subclass of:

349 - Liquid crystal cells, elements and systems

349001000 - LIQUID CRYSTAL SYSTEM

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
349008000 Plural light path projectors 103
349007000 Video/motion picture projector 6
Entries
DocumentTitleDate
20100149442METHOD OF MANUFACTURING A MICROLENS SUBSTRATE, AN OPPOSED SUBSTRATE FOR A LIQUID CRYSTAL PANEL, A LIQUID CRYSTAL PANEL AND A PROJECTION TYPE DISPLAY APPARATUS - A method of manufacturing a microlens substrate 06-17-2010
20110181800LIQUID CRYSTAL PROJECTOR - A liquid crystal projector includes: an illumination system; a liquid crystal optical element; an inorganic polarizer arranged on the emission side of the liquid crystal optical element; and a projection system arranged on the emission side of the inorganic polarizer, the inorganic polarizer includes a substrate, a plurality of reflective layers arranged on the substrate, a dielectric layer formed on each reflective layer, and an inorganic particulate layer formed on the dielectric layer to be shifted in a first direction from a center line that bisects the corresponding reflective layer in a short-side direction, at least one of a optical axis of the illumination system and a optical axis of the projection system is shifted with respect to a center axis of the liquid crystal optical element.07-28-2011
20110205457POLARIZATION ELEMENT AND PROJECTOR - A polarization element includes: a substrate; and a plurality of grid sections arranged on the substrate, wherein the grid sections each have protruding sections and recessed sections alternately arranged in a longitudinal direction of the grid sections at a pitch shorter than a wavelength of incident light, in the plurality of grid sections, the arrangement pitch P of the protruding sections is the same, and a proportion (D=L/P) of a length L of the protruding section to the arrangement pitch P of the protruding sections is the same, and a height of the protruding sections is different between the grid sections adjacent to each other.08-25-2011
20100053482LIQUID CRYSTAL DEVICE AND PROJECTOR - A liquid crystal device includes a first substrate, an optically transparent second substrate, a liquid crystal layer provided between the first and second substrates, a plurality of light reflecting pixel electrodes provided between the first substrate and the liquid crystal layer, pixels including the pixel electrodes, a translucent electrode provided between the second substrate and the liquid crystal layer, and a reflective layer. The reflective layer is provided close to the first substrate rather than the pixel electrodes so as to overlap, in plan view, at least a part of a gap between the first pixel electrode of the pixel electrodes and the second pixel electrode adjacent to the first pixel electrode, and the cross-section of the reflective layer in a direction where the first and second pixel electrodes are adjacent to each other has a concave surface that is dented toward a side opposite to the liquid crystal layer.03-04-2010
20110194037ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - In at least one embodiment of the disclosure, an electro-optical device includes an electro-optical panel including a display area. The electro-optical panel has an incidence face side that faces incident light from a light source and an opposite side which is opposite to the incidence face side. A holding member houses the electro-optical panel. A heat radiation member is provided at the opposite side of the electro-optical panel. A light-shielding plate is formed so as to at least partially surround the display area of the electro-optical panel. The light-shielding plate is provided so as to make contact with the holding member and the incidence face side of the electro-optical panel.08-11-2011
20090122209SUBSTRATE FOR A REFLECTION TYPE LIQUID CRYSTAL DISPLAY APPARATUS, REFLECTION TYPE LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME, AND LIQUID CRYSTAL PROJECTOR APPARATUS USING THE SAME - A light leakage is suppressed, and the effect of interference is reduced. A substrate for a reflection type liquid crystal display apparatus disposed opposite to a transparent substrate by sandwiching the liquid crystal and including a semiconductor substrate constituting the reflection type liquid crystal display apparatus, including a plurality of reflection electrodes disposed above the semiconductor substrate so as to be opposed to the transparent substrate, and a metal layer disposed between the semiconductor substrate and the reflection electrodes in order to reflect upward the light entering through a gap of the plurality of reflection electrodes from the above, wherein the metal layer has a concave portion in a region corresponding to the gap.05-14-2009
20130076994LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY - A liquid crystal display device includes: a transparent electrode substrate including a transparent substrate and a transparent electrode, the transparent electrode being formed on one surface of the transparent substrate; a liquid crystal layer; and a pixel electrode substrate including a first layer and a second layer in this order, the first layer including a plurality of pixel electrodes that are located in a region opposed to the transparent electrode with the liquid crystal layer in between, and a first conductive film that is located in a region other than the region opposed to the transparent electrode with the liquid crystal layer in between, the second layer including a second conducive film that is located in a region overlapping the first conductive film. The first conductive film or the second conducive film or both are electrically isolated.03-28-2013
20120182486PROJECTOR - A projector includes: a lighting device that emits light of a plurality of different colors; a plurality of liquid crystal light valves that modulate the light of a plurality of colors; a color synthesizing optical system that synthesizes the color light modulated by the plurality of liquid crystal light valves; and a projection optical system that projects the light synthesized by the color synthesizing optical system to a projection target face. A cell thickness of one liquid crystal light valve modulating light of one color of the plurality of liquid crystal light valves is smaller than a cell thickness of the other liquid crystal light valves modulating the light of other colors, and an alignment state of liquid crystal at the time of applying the maximum gradation voltage is substantially the same in one liquid crystal light value and the other liquid crystal light valve.07-19-2012
20130088652PROJECTION DISPLAY - A projection display satisfies formulas {(4FR′)/(W′TphR)}≧0.015 and W′≦0.5, where: F is an F-number of a projection lens; W′ is a diagonal size (inch number) of a light modulation element; ph is a pixel count in one side direction of the light modulation element; T is a throw ratio of the projection display (=a projection distance s/a distance L in the one side direction of a projected image on a projection plane); R is a radius of an exit pupil of the projection lens; I is an integrated light quantity obtained by, in a light quantity distribution in the exit pupil, radially integrating the light quantity up to the radius R; and I′(=I/2) is an integrated light quantity obtained by, in the light quantity distribution in the exit pupil, radially integrating the light quantity up to a predetermined radius R′ about barycenter of the light quantity distribution.04-11-2013
20130057786POLARIZED PROJECTION ILLUMINATOR - The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as “fly-eye arrays” (FEA). The FEA is positioned to homogenize a polarized combined light after an unpolarized input light is converted to a single polarization state.03-07-2013
20090040400LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL PROJECTOR - A liquid crystal display panel (02-12-2009
20110013102Projection type liquid crystal display apparatus - A projection type liquid crystal display apparatus includes: alight source; a liquid crystal display device; and a projection lens projecting light modulated by the liquid crystal display device. The liquid crystal display device includes a liquid crystal layer, a pixel electrode section having two-dimensionally disposed pixel apertures through which light can pass, and first and second microlens arrays formed on a light entering side and a light exiting side of the device with respect to the liquid crystal layer, respectively, and being a two-dimensional array of first and second microlenses provided in association with the pixel apertures, respectively. The F-number of the first microlenses is set at a value equal to or greater than that of the projection lens. The first and second microlenses are disposed such that the groups of microlenses are located in the focus position of each other.01-20-2011
20110013101LIQUID CRYSTAL PANEL SUBSTRATE, LIQUID CRYSTAL PANEL, AND ELECTRONIC DEVICE AND PROJECTION DISPLAY DEVICE USING THE SAME - In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.01-20-2011
20120224112LIQUID CRYSTAL PANEL SUBSTRATE WITH LIGHT-SHIELDING FILM IN A PERIPHERY REGION, LIQUID CRYSTAL PANEL, AND ELECTRONIC EQUIPMENT AND PROJECTION TYPE DISPLAY DEVICE BOTH USING THE SAME - A substrate is provided having a pixel region including a pixel electrode and a switching element. A periphery region in the periphery of the pixel region includes a first light-shielding film, the first light-shielding film being formed from the same layer as the pixel electrode. A passivation film that covers the pixel electrode and the first light-shielding film is provided.09-06-2012
20120113334LCD PROJECTOR - An LCD projector including liquid crystal light valves, a duct, and nozzles. Each liquid crystal light valve includes optical components. Cooling air flows through the duct to cool the optical components of each liquid crystal light valve. The nozzles are arranged in correspondence with the liquid crystal light valves and blow the cooling air from the duct toward the optical components of the corresponding liquid crystal light valves. At least one nozzle includes an inlet, which is in communication with the duct, and an outlet, from which the cooling air from the inlet is blown out. The outlet has a width in a direction orthogonal to an optical axis of light that is set so that a blowing range of the cooling air is selected for each optical component in the corresponding liquid crystal light valve.05-10-2012
20120236218PROJECTOR - A projector includes: an illumination optical system which emits first light (green light); a reflection type first liquid crystal panel which modulates the first light emitted from the illumination optical system; a first wire grid element which is disposed at a position at which the first light modulated and reflected by the first liquid crystal panel is incident, which includes a plurality of metal wires extending so as to be almost parallel to a light-exit surface of the first liquid crystal panel, and in which the surface on which the first light is incident is inclined by an angle equal to or greater than 37° and less than 45° with respect to a normal direction of the light-exit surface of the first liquid crystal panel; a projection optical system which projects the first light modulated by the first liquid crystal panel and reflected from the first wire grid element.09-20-2012
20130021542ELECTRO-OPTICAL DEVICE, PROJECTION-TYPE DISPLAY DEVICE, ELECTRONIC DEVICE, AND MANUFACTURING METHOD OF THE ELECTRO-OPTICAL DEVICE - In the electro-optical device, a pillar-shaped protrusion is formed on an insulating film (a first insulating film) provided below a pixel electrode in the downward direction, and thus a conduction section of a second electrode layer (a conductive layer) overlaps the highest surface of the pillar-shaped protrusion. An inter-layer insulating film (a second insulating film) is provided between the second electrode layer and the pixel electrode, but the conduction section is exposed on a surface of the inter-layer insulating film. For this reason, the pixel electrode is electrically connected to the conduction section, when the pixel electrode is laminated on the inter-layer insulating film.01-24-2013
20110292306ELECTRICALLY-DRIVEN LIQUID CRYSTAL LENS AND STEREOSCOPIC DISPLAY DEVICE USING THE SAME - Disclosed are an electrically-driven liquid crystal lens in which a rubbing direction is defined in a range of 30˜90 degrees with respect to a longitudinal direction of an electrode, achieving an improved lens profile and lens symmetry, and a stereoscopic display device using the same.12-01-2011
20090002577Projector - In a conventional single plate type projector, there has been a trade-off relation between the brightness of the entire image and color reproducibility because the amount of light of each color and the brightness of the entire image are restricted by the rotary filter. The amount of light emitting from the lamp is controlled so that the amount of light increases during a period when the light emitted from the lamp passes through at least one of the plurality of filter segments in the rotary color filter. Consequently, the brightness of the entire image and the color reproducibility can be arbitrarily regulated by regulating the quantity of light being emitted from the lamp.01-01-2009
20100091201OPTICAL MODULATION ELEMENT UNIT, PROJECTION OPTICAL UNIT, AND IMAGE PROJECTION APPARATUS - An optical modulation element unit is disclosed which employs a film-type optical function member and a reflective optical modulation element and allows dust prevention for the reflective optical modulation element while preventing an increased number of parts other than optically required parts. The optical modulation element unit includes a light-transmissive substrate, a film-type optical function member attached to the light-transmissive substrate, a reflective optical modulation element separately placed from the light-transmissive substrate, a cover member which surrounds a space between the light-transmissive substrate and the reflective optical modulation element, and a holding member which holds the light-transmissive substrate. The holding member has a guide portion which guides an air flow to a space along a surface of the light-transmissive substrate, the surface being a surface on the side opposite to the reflective optical modulation element.04-15-2010
20090190047LIQUID CRYSTAL DISPLAY APPARATUS, DRIVE METHOD THEREOF, AND LIQUID CRYSTAL PROJECTION APPARATUS - A liquid crystal display apparatus includes: a plurality of pixels arranged in a matrix, each including a switching element connected to a pixel electrode for applying a voltage to a liquid crystal placed between the pixel electrode and a counter electrode; and a vertical scan circuit for supplying a scan signal for controlling the switch element between conducting and non-conducting states, and for scanning the pixels scan line by scan line sequentially, wherein the scan signal includes a first conducting signal setting the switch element at the conducting state, a second conducting signal setting the switch element at the conducting state following to the first conducting signal, and a non-conducting signal setting the switch element at the non-conducting state between the first and second conducting signals to suppress deterioration of the image quality owing to the parasitic capacitance coupling between pixel electrodes and a feedthrough between pixels.07-30-2009
20080284924Optical System - Lighting systems, in particular used for SSTV, disco lights, lighting consoles and claviluxes. In order to reduce noise and to increase robustness, the system comprises a light beam source (11-20-2008
20120188469PROJECTOR - A projector according to the invention includes: a plurality of illumination systems, each of which is configured so as to include a solid-state light source, that emit light of different wavelengths; a liquid-crystal panel that modulates the light emitted from the plurality of illumination systems; wavelength plates, provided one-to-one for the respective illumination systems in the respective optical paths between each of the plurality of illumination systems and the liquid-crystal panel, whose retardations are set to ¼ the central wavelength of the light emitted from the corresponding illumination systems; and a projection optical system that projects the light modulated by the liquid-crystal panel.07-26-2012
20090027575Display apparatus - A display apparatus includes: a light source; spatial light modulation device for modulating light emitted by the light source based on a video signal; intensity distribution adjusting means for changing an angle-dependent intensity distribution of an incident light in response to luminance factor in the video signal, the intensity distribution adjusting means being arranged ahead of or behind the spatial light modulation device; and correction means for correcting the video signal in accordance with an intensity distribution adjusted by the intensity distribution adjusting means, and supplying a corrected video signal to the spatial light modulation device, in which the correction means has a plurality of correction tables each corresponding to a predetermined intensity distribution, generates a mixed correction value by mixing correction values in the plurality of correction tables at a mixing ratio determined by an individual intensity distribution, and corrects the video signal by using the mixed correction value.01-29-2009
20100002153PROJECTOR - A projector includes a display screen, an imaging system adapted to provide an optical image, a reflector arranged on a transmission path of the optical image, and an optical transmission medium disposed inside the refraction space. The refraction space is formed between the reflector and the display screen. The optical image travels through the optical transmission medium by the reflection of the reflector and is transmitted to the display screen. A refractive index of the optical transmission medium is not equal to one.01-07-2010
20090153753PROJECTOR - A projector includes: a lighting device which emits illumination light; a liquid crystal panel which modulates the illumination light emitted from the lighting device according to image information; a projection system which projects light modulated by the liquid crystal panel; a polarization plate which is disposed at least either on the light incident side or the light exit side of the liquid crystal panel and has at least a polarization layer; a liquid crystal panel side light-transmissive substrate affixed to the liquid crystal panel side surface of the polarization plate and made of inorganic material; and an opposite side light-transmissive substrate affixed to the surface of the polarization plate on the side opposite to the liquid crystal panel side surface of the polarization plate. The thickness of the liquid crystal panel side light-transmissive substrate is smaller than the thickness of the opposite side light-transmissive substrate.06-18-2009
20090147158LIQUID CRYSTAL DISPLAY DEVICE AND PROJECTOR - A liquid crystal display device includes: a liquid crystal panel which has a liquid crystal device containing liquid crystal operating in twist nematic mode and a micro-lens array disposed adjacent to the liquid crystal device; a first optical compensating plate disposed on the incident side of the liquid crystal panel to optically compensate the liquid crystal device; and a second optical compensating plate disposed on the exit side of the liquid crystal panel to optically compensate the liquid crystal device. A first retardation of the first optical compensating plate in system optical axis direction is larger than a second retardation of the second optical compensating plate in the system optical axis direction.06-11-2009
20090310041Image display device and adjustment method thereof - An image display device includes: an optical modulator; and an optical compensation element configured to cancel out phase difference generated within the optical modulator; wherein the optical compensation element is installed in a state in which the brightness of a projected image corresponding to a region having relatively great phase difference within the optical modulator becomes a minimal value, at the minimum driving voltage to be applied to the optical modulator.12-17-2009
20090207327LIQUID CRYSTAL APPARATUS, PROJECTION APPARATUS AND ELECTRONIC EQUIPMENT - A liquid crystal apparatus includes: a liquid crystal panel having a pair of substrates and including a display area; and a case body having an opening in an area corresponding to the display area of the liquid crystal panel and being attached to the liquid crystal panel, in which the case body includes: a plurality of panel-shaped members having a laminated structure including a clearance in the direction of the thickness of the liquid crystal panel, openings provided at portions on the side of one side of the liquid crystal panel and on the side of the other side thereof opposing the one side corresponding to the clearance, a diaphragm formed in the clearance of the plurality of panel-shaped members from the side of the one side toward the side of the other side.08-20-2009
20100079686ELECTRO-OPTICAL DEVICE AND ELECTRONIC DEVICE - An electro-optical device includes a first substrate and a translucent second substrate facing each other, a liquid crystal layer disposed between the first substrate and the second substrate, a reflective electrode that is disposed between the first substrate and the liquid crystal layer, a translucent electrode that is disposed between the second substrate and the liquid crystal layer, a first dielectric layer that is disposed between the reflective electrode and the liquid crystal layer and includes a plurality of dielectric films, and a second dielectric layer that is disposed between the translucent electrode and the liquid crystal layer and includes at least one dielectric film.04-01-2010
20110170025LIQUID CRYSTAL PANEL SUBSTRATE, LIQUID CRYSTAL PANEL, AND ELECTRONIC EQUIPMENT AND PROJECTION TYPE DISPLAY DEVICE BOTH USING THE SAME - The present invention is a liquid crystal panel substrate that comprises: pixel units each having a pixel electrode, to be used as a reflective electrode and arranged in a matrix pattern on a substrate, and a switching element controlling a voltage applied to the pixel electrode; wherein between the pixel electrode and a conductive layer forming a terminal electrode of the switching element, a contact hole is provided for connecting the pixel electrode and the terminal electrode. A light-shielding layer, having an opening surrounding the portion in which the contact hole is formed, and having no opening in regions between a plurality of adjacent pixel electrodes, is formed between the pixel electrode and the conductive layer. Harmful effects due to light leaking through a space between the pixel electrodes can thereby be prevented.07-14-2011
20090262267ACTIVE MATRIX SUBSTRATE, REFLECTION TYPE LIQUID CRYSTAL DISPLAY APPARATUS AND LIQUID CRYSTAL PROJECTOR SYSTEM - An active matrix substrate for a reflection type liquid crystal display apparatus has an image display region 10-22-2009
20120293732PHASE DIFFERENCE ELEMENT AND METHOD FOR MANUFACTURING THE SAME - A phase difference element capable of reducing reflection of incident light and a manufacturing method for the phase difference element are disclosed. The phase difference element includes a transparent substrate 11-22-2012
20110141380PROJECTOR, PROJECTOR CONTROL METHOD, AND PROJECTION SYSTEM - When images are projected in a superposing manner on a screen by a plurality of projectors, a controller of a projector obtains drive timing information of liquid crystal panels of the plurality of projectors and controls a drive timing of a drive unit on the basis of the obtained drive timing information so as to reduce a flicker of a display image.06-16-2011
20100265419PROJECTOR - A projector includes: a display device which modulates illumination light; a projection lens which projects modulation light produced by the display device; and a holding device which has a holder member supporting the display device, a frame member supporting the projection lens and functions as a base capable of supporting the holder member, and an expanding and contracting member disposed between the frame member and the display device, wherein a temperature coefficient for the expansion and contraction of the expanding and contracting member in the direction of the optical axis of the projection lens corresponds to a temperature coefficient for the increase and decrease of the focal distance of the projection lens.10-21-2010
20080211974LIQUID CRYSTAL DEVICE AND PROJECTOR - A liquid crystal device includes a pair of substrates facing each other, and a liquid crystal layer sandwiched between the pair of substrates. One of the pair of substrates includes data lines and scanning lines that intersect each other, pixels arranged in a matrix, at least one first electrode, and at least one second electrode that applies an electric field generated between the first electrode and the second electrode to the liquid crystal layer. Each of the first electrode and the second electrode includes a plurality of electrode portions, and a joint portion for connecting the plurality of electrodes. At least a portion of the joint portion of the first electrode and at least a portion of the joint portion of the second electrode are arranged so as to overlap at least the data lines or the scanning lines, and are aligned in a line extending along the at least the data lines or the scanning lines.09-04-2008
20080246896PROJECTION TYPE IMAGE DISPLAY APPARATUS - A duct was configured such that an incident side and an outgoing side of each of liquid crystal panels 10-09-2008
20110205458POLARIZATION ELEMENT AND PROJECTOR - A polarization element includes: a substrate; and a plurality of grid sections arranged on the substrate, wherein the grid sections each have protruding sections and recessed sections alternately arranged in a longitudinal direction of the grid sections at a pitch shorter than a wavelength of incident light, and an arrangement pitch of the protruding sections is different between the grid sections adjacent to each other.08-25-2011
20110205456IMAGE FORMING APPARATUS AND REAR PROJECTION DISPLAY APPARATUS - An image forming apparatus includes: a screen having a display surface; and a projector that renders an image by scanning light on the display screen, wherein the screen selects, independently in respective regions of the display surface, a light transmission state in which the light is transmitted and a light diffusion state in which the light is diffused, the screen being configured such that the region where address light is irradiated is in the light diffusion state and the region where the address light is not irradiated is in the light transmission state, and the projector scans the address light on the display surface such that an area of the display surface corresponding to an image displayed on the display surface changes to the light diffusion state.08-25-2011
20090161031REFLECTIVE LIQUID CRYSTAL PROJECTOR AND IMAGE REPRODUCTION APPARATUS - It is an object of the present invention to miniaturize a reflective liquid crystal projector to such a degree that it can be built in a small-sized apparatus such as a portable telephone terminal.06-25-2009
20130120671LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL PROJECTOR - Disclosed herein is a liquid crystal display panel wherein: dummy pixels are created at locations surrounding an effective pixel area; and if the dummy pixels include same-column dummy pixels provided on the same pixel column as pixels provided in the effective pixel area, at least, a pixel transistor employed in each of the same-column dummy pixels is electrically disconnected from a signal line.05-16-2013
20130120672POLARIZER, POLARIZER PRODUCING PROCESS, PROJECTOR, LIQUID CRYSTAL DEVICE, AND ELECTRONIC DEVICE - A polarizer includes a first grating and a second grating. The second grating contains at least one of chromium nitride, tungsten nitride, and tantalum nitride.05-16-2013
20130120673LIQUID CRYSTAL PANEL SUBSTRATE, LIQUID CRYSTAL PANEL, AND ELECTRONIC DEVICE AND PROJECTION DISPLAY DEVICE USING THE SAME - In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.05-16-2013
20090015733Retardation Film and Projection Display Apparatus - A retardation film includes a substrate, concave-and-convex regions formed on the substrate and arranged at a pitch smaller than a wavelength of visible light, each of the concave-and-convex regions having a concave portion and a convex portion, and an inorganic film formed on the concave-and-convex regions by depositing an inorganic material on the concave-and-convex regions in a direction oblique to a surface of the substrate.01-15-2009
20130215339LCD Module with Projection Function and LCD Device - The invention relates to the field of LCDs, and more particularly to an LCD module with projection function and an LCD device including the LCD module. The LCD module includes a light source, a light guide panel, and a backplane, and further includes a projection module sharing the light source of the LCD module, and a switching mechanism for switching liquid crystal display and projection. The LCD module of the invention is used for liquid crystal display in a usual state, the display mode is changed into a projection mode by the switching mechanism when the size of an LCD screen cannot meet the display requirement, and the projection area is large and can basically meet the requirement. The invention has the advantages of one machine with dual-purpose and convenient operation; in addition, a projector is integrated with the LCD module by the invention, and the light source of the LCD module is shared with the projection module by clever design, thus, a simple structure is obtained, and the cost of the device is well controlled.08-22-2013
20090051831Light Source For A Projector - A projector includes a plurality of illumination modules. Each illumination module includes a light source, such as a semiconductor light emitting diode, and an optical element configured to receive light from the light source and collimate the light into a beam. Light from the illumination modules is provided to a liquid crystal display panel, then a projection lens. In some embodiments, secondary optics, such as an array of Fresnel lenses or a reflective polarizer, are disposed between the illumination modules and the liquid crystal display panel. In some embodiments, the liquid crystal display panel is a low temperature polysilicon liquid crystal display.02-26-2009
20110228177LIQUID CRYSTAL DEVICE AND PROJECTION DISPLAY DEVICE - A liquid crystal device including a liquid crystal panel where a liquid crystal layer having liquid crystals with negative dielectric constant anisotropy is interposed between a first substrate and a second substrate, liquid crystal molecules are tilted in a predetermined direction with regard to an inner surface of the first substrate and an inner surface of the second substrate, and a reflective layer reflects light incident, is provided in the second substrate; a C plate provided on an outer side of the first substrate; and an O plate provided on the C plate side opposite to the liquid crystal panel. The O plate is formed by oblique evaporation of an inorganic material and is arranged with regard to the liquid crystal panel so that the tilt direction of columns formed from the inorganic material is typically at 135 degrees with regard to the tilt direction of the liquid crystal molecules.09-22-2011
20090167966See-through display apparatus and method thereof - A see-through display apparatus and a method thereof are provided. The see-through display apparatus includes: a screen which changes its transparency by varying its light scattering properties; a projector which projects an image onto the screen; and a control unit which controls a change of transparency of the screen. Accordingly, an image can be clearly displayed on the screen by controlling light scattering and non-scattering states of the screen, and also a user can monitor the external environment through the screen.07-02-2009
20090213281SYSTEM AND METHOD FOR IMPROVED CONTRAST RATIO IN A PROJECTION SYSTEM - A system embodiment comprises an analyzer, a Liquid Crystal Display (LCD), and a compensation plate. The LCD allows, limits or blocks passage of polarized light as a projected image to the analyzer. The LCD includes a plurality of crystals that provide the LCD with a plurality of pixels, and the crystals in the LCD have non-ideal polarization states resulting from receipt and retardance of non-collimated incident angles of light. The non-ideal polarization states introduce unwanted phase shifts of the light in the projected image. The compensation plate is configured to introduce desired phase shifts to compensate for the unwanted phase shifts of the light introduced by non-ideal polarization states introduced by the LCD.08-27-2009
20120105745POLARIZATION ELEMENT, PROJECTOR, LIQUID CRYSTAL DEVICE, ELECTRONIC APPARATUS, AND METHOD OF MANUFACTURING POLARIZATION ELEMENT - A polarization element according to the invention includes a substrate, a metal layer and an absorber layer formed on the substrate to form a stripe in a plan view and stacked in a thickness direction of the substrate, a first dielectric layer formed on a surface of the metal layer and a second dielectric layer formed on a surface of the absorber layer. The first dielectric layer is made of an oxide of a metal constituting the metal layer, and the second dielectric layer is made of an oxide of a material constituting the absorber layer.05-03-2012
20100149441POLARIZING ELEMENT, METHOD FOR PRODUCING SAME, LIQUID CRYSTAL DEVICE, ELECTRONIC APPARATUS, AND PROJECTION DISPLAY - A polarizing element includes a substrate; a plurality of protruded threads formed on one of surfaces of the substrate in a rough stripe pattern when viewed two-dimensionally, each of the protruded threads having a side surface forming a slope inclined with respect to the one surface of the substrate; and a plurality of metal thin wires each formed on the slope of the each protruded thread so as to be cantilever-supported by the slope and each extended in an extension direction of the protruded thread.06-17-2010
20080259229LIQUID CRYSTAL DISPLAY APPARATUS, METHOD OF CONTROLLING THE SAME, AND LIQUID CRYSTAL PROJECTOR SYSTEM - A liquid crystal display apparatus includes a display area in which pixels each having a switching element and electrode are arranged forming a matrix; a first scanning circuit to control whether the switching elements are turned on or off via first wires; a second scanning circuit to control whether an image signal generating circuit is electrically connected to or disconnected from second wires, and to assign image signals to the pixels via those wires; a discharging element to discharge the assigned image signals; a detecting circuit to detect reduction in a power supply voltage and to output a detection signal; and a control circuit to perform a controlling operation according to the signal so that the image signal generating circuit is electrically disconnected from the second wires, the switching elements are turned on, and the discharging element is caused to operate.10-23-2008
20100157176LIQUID CRYSTAL PROJECTOR APPARATUS AND COOLER - A liquid crystal projector apparatus has a liquid crystal unit having a liquid crystal panel for modulating light, an incident side polarizing plate and an exit side polarizing plate disposed in front of and behind the liquid crystal panel along the optical axis, respectively, a first holder member for holding the liquid crystal unit, a first heat exchanger disposed in close proximity to the first holder member for dissipating heat generated by the liquid crystal unit and then conducted to the first holder member using a coolant liquid which passes through a first channel formed inside the first heat exchanger, a pump for circulating the coolant liquid, and a radiator for cooling the coolant liquid.06-24-2010
20100182519LIQUID CRYSTAL DISPLAY APPARATUS AND PROJECTOR - A liquid crystal display device includes: a liquid crystal device; a first dust-proof plate made of a birefringent material, and disposed on one of a light entrance side and a light exit side of the liquid crystal device; and a second dust-proof plate made of an isotropic refractive material, and is disposed on the other of the light entrance side and the light exit side of the liquid crystal device.07-22-2010
20110234927LIQUID CRYSTAL DEVICE AND ELECTRONIC EQUIPMENT - In a liquid crystal device, a shoulder portion configured to increase the distance between a element-substrate-side substrate body and a opposed-substrate-side substrate body is provided on the opposed-substrate-side substrate body in an area overlapped with a sealing material including a gap material. Therefore, in an area inside the sealing material, the gap between the element substrate and the opposed substrate is smaller than the gap therebetween in the area overlapped with the sealing material. Therefore, the layer thickness of the liquid crystal layer can be reduced without reducing the size of the gap material.09-29-2011
20130215338POLARIZATION CONVERTER AND PROJECTOR APPARATUS COMPRISING THE SAME - A polarization converter for use in a projector apparatus is provided. The polarization converter includes a polarizing beam splitter, a half wavelength retarder and a quarter wavelength retarder. The polarizing beam splitter could split a first light into a first light beam with a first polarized direction and a second light beam with a second polarized direction. The half wavelength retarder is disposed on the side of the polarizing beam splitter and the second light beam is converted into the second light beam with the first polarized direction by the half wavelength retarder. The first and second light beams with the first polarized direction are coupled to form a first polarized light with the first polarized direction. The quarter wavelength retarder is disposed behind the half wavelength retarder so that the first polarized light is converted into a first circularly polarized light.08-22-2013
20100253865PROJECTOR - A projector includes: a liquid crystal panel having liquid crystal encapsulated between a pair of substrates; 10-07-2010
20100141855IMAGE DISPLAY APPARATUS - Image display apparatus (06-10-2010
20090322971POLARIZATION INDEPENDENT LIQUID CRYSTAL-BASED ETALON AND DEVICES USING SAME - A liquid crystal etalon includes a chiral nematic material contained in a liquid crystal cell having alignment surfaces configured to bias the chiral nematic material toward a twisted liquid crystal configuration with a twist less than 360°. Electrodes are arranged to apply an operative electrical bias to the liquid crystal cell. Mirrors disposed about the chiral nematic material define a resonant optical cavity. At a first electrical bias the etalon is transmissive for light of a first wavelength via a selected liquid crystal twist angle and cavity thickness at which different non-equal eigenmodes reach resonance conditions simultaneously. In a projector embodiment, a projection system with a field sequential image projection light source is coupled with the liquid crystal etalon, the etalon electrodes are patterned into pixels defining a display area, and the projector is operated in a field sequential illumination mode.12-31-2009
20090213280Liquid crystal panel substrate, liquid crystal panel, and electronic device and projection display device using the same - In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.08-27-2009
20120242915LIQUID CRYSTAL DEVICE AND PROJECTOR - In a liquid crystal device, a liquid crystal layer is interposed between first and second substrates. The liquid crystal device includes a light-shielding layer formed in a lattice shape and a condensing lens condensing light incident on the side of the first substrate into the inside of an opening portion of a light-shielding section. In the second substrate, a prism element condensing the light which has been incident from the side of the first substrate and has passed and spread through the condensing lens, the liquid crystal layer, and the opening portion is disposed at a position overlapping the light-shielding layer in a plan view. The prism element includes a groove formed in the second substrate.09-27-2012
20110032436THREE-PLATE TYPE OF LIQUID CRYSTAL PROJECTOR USING PROJECTION DISPLAY APPARATUS - A projection display apparatus comprises a reflective LC display device and a polarizing beam splitter having a polarizing separative plane and wired grids. The LC molecules of the device are aligned such that i) a segment on a second subtracted, produced by projecting a major axis of each LC molecule perpendicularly onto the second substrate, makes an angle of 42 to 48 degrees counterclockwise or counterclockwise in relation to a direction of a straight line on the second substrate, formed by projecting each wire grid perpendicularly onto the second substrate and ii) of both ends of the segment, one end meeting an end of each LC molecule, which is positioned nearer to the second substrate than the other end, is positioned nearer to an intersection at which a plane including the polarizing separative plane and a plane including the second substrate mutually intersects, than the other end of the segment.02-10-2011
20100309397ELECTRO-OPTICAL DISPLAY DEVICE AND PROJECTOR - An electro-optical display device includes: a reflection-type liquid crystal panel that has a driving substrate, on which a reflective layer is disposed, and an opposing substrate facing each other with a liquid crystal interposed therebetween; and an light-transmissive substrate that is disposed on an outer side of the opposing substrate, wherein any one or more values of thermal expansion coefficients of a plurality of element substrates including at least the opposing substrate and the light-transmissive substrate are negative, and any one or more values of the thermal expansion coefficients of the plurality of element substrates are positive.12-09-2010
20110115991POLARIZATION ELEMENT AND PROJECTOR - A polarization element includes: a substrate; a plurality of thin metal wires provided to the substrate in a striped manner; and a plurality of protruding sections made of metal provided to each of the thin metal wires, and arranged in a longitudinal direction of the thin metal wire at a pitch shorter than a wavelength of incident light.05-19-2011
20090066860OPTICAL DEVICE AND PROJECTOR - An optical device includes a vertically aligned liquid crystal cell that holds a liquid crystal material, a compensating element made of a negative uniaxial refractive material having an optical axis tilted with respect to a system optical axis, and having a fixed positional relation with the liquid crystal cell, an adjustment element having a planar shape and a phase difference in a plane perpendicular to the system optical axis, and a rotary adjustment mechanism that rotates the adjustment element in the plane perpendicular to the system optical axis to adjust the phase difference influencing light transmitted through the adjustment element.03-12-2009
20090219456LIQUID CRYSTAL DEVICE, ELECTRONIC DEVICE AND PROJECTOR - A liquid crystal device includes a liquid crystal panel including a pair of substrates that sandwiches a liquid crystal layer containing liquid crystal molecules exhibiting a parallel alignment in an initial alignment state, and a polarizing plate disposed on either side of the liquid crystal panel. The liquid crystal molecules are inclined at a pretilt angle and aligned in a predetermined direction in planes of the substrates. The liquid crystal panel emits light entering through one of the polarizing plates toward the other. The liquid crystal panel emits light having the maximum intensity in a direction different from a direction normal to the substrates. The azimuth of the maximum-light-intensity direction projected onto the planes of the substrates is substantially parallel to the predetermined direction. The maximum-light-intensity direction is a direction inclined from the direction normal to the substrates toward a direction in which the maximum-light-intensity direction form a right angle with a longitudinal direction of the liquid crystal molecules inclined at the pretilt angle.09-03-2009
20090219455Liquid Crystal Display Apparatus - A liquid crystal display apparatus which includes an optical compensation layer in addition to a liquid crystal panel and which is capable of preventing degradation of the optical compensation layer, thereby providing high long-term reliability in display characteristics, is provided. The liquid crystal display apparatus includes a liquid crystal panel 09-03-2009
20110085094ZOOM LENS ARRAY AND SWITCHABLE TWO AND THREE DIMENSIONAL DISPLAY - A zoom lens array, including a liquid crystal layer, a first strip electrode, and a second strip electrode, is provided. The liquid crystal layer has a plurality of zoom regions. The first strip electrode is disposed on an upper side of the liquid crystal layer and located at the boundary between the zoom regions. The second strip electrode is disposed on a lower side of the liquid crystal layer and located at the boundary between the zoom regions. The first strip electrode and the second strip electrode are alternatively arranged. Moreover, a switchable two and three dimensional display with the above zoom lens array is also provided.04-14-2011
20120242913LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal lens is provided on a liquid crystal display panel. Electrodes extending vertically to a plane of drawing are provided on an upper substrate of the liquid crystal lens at predetermined intervals. No electrodes are provided on a lower substrate. An initial alignment of liquid crystal molecules in the liquid crystal lens is vertically directed with respect to the plane of the drawing. A voltage applied to the upper substrate electrodes generates a transverse electric field to rotate the liquid crystal molecules. Polarization light emitted from the liquid crystal display panel is vertically directed to the plane of the drawing, which generates a refractive index distribution of the polarization light in a liquid crystal layer to form a convex lens within the liquid crystal lens. This lens allows first and second pixels to be recognized by right and left eyes to allow a three-dimensional display.09-27-2012
20110069242PROJECTION DESPLAY APPARATUS - A projection display apparatus (03-24-2011
20120200787VIRTUAL IMAGE DISPLAY SYSTEM - A virtual image display system includes a display device that outputs image light, a projection lens that projects the image light from the display device, a first holding member that holds the projection lens, a light guide plate that takes in the image light from the projection lens, and then, guides the light to an external predetermined position, and a second holding member that holds the light guide plate. A positioning structure for positioning the light guide plate with respect to the projection lens is provided in the first holding member and the second holding member.08-09-2012
20130162917PROJECTOR AND METHOD FOR CONTROLLING PROJECTOR - A projector in which a liquid crystal display panel modulates light emitted from a light source and the modulated image light is projected, the projector includes a temperature detector that detects a temperature in the projector and a controller that determines the amount of overdrive based on the temperature detected by the temperature detector in accordance with a driven state of the projector and performs overdrive control on the liquid crystal display panel based on the amount of overdrive.06-27-2013
20110249205Image display device and projection device - An image display device includes an image display element that displays images, a light blocking member that includes a light blocking portion blocking light from reaching a peripheral portion of the image display element, and a dust-proof member that is provided to surround the outer peripheries of the image display element and the light blocking portion such that the image display element and the light blocking portion positioned inside the dust-proof member have a dust-proof structure, wherein the light blocking member includes a heat dissipation portion which is integrally formed with the light blocking portion and which releases heat from the light blocking portion to the outside of the dust-proof member.10-13-2011
20080246895Light diffusion element, screen, and image projector - A light diffusion element includes a liquid-crystal diffusion layer that variably diffuses an amount of light depending on an applied voltage, a first electrode that is laid on a plane of the light diffusion layer and made of a first and a second segmented-electrodes, a second electrode that is laid on the other plane of the light diffusion layer, a voltage applying unit that generates and applies two types of voltages, and a voltage changing unit that varies the two types of voltages. One of the voltages is applied between the first segmented-electrodes and the second electrode, and the other between the second segmented-electrodes and the second electrode. Both the segmented-electrodes are included in each pixel.10-09-2008
20100321597PROJECTION SYSTEM - A projection system includes an illumination apparatus, an imaging apparatus, and a projection lens. The illumination apparatus includes a light source, a lens array, light collecting elements, and a converging lens array. The light source provides a parallel light beam. The light collecting elements are disposed at a side of the lens array, and arranged in an array. Each light collecting element has a second end facing the light source, a first end corresponding to the second end, and at least one side connected between the first end and the second end. Each light collecting element shrinks from its second end to its first end. The side of the light collecting element has at least one reflective surface. The converging lens array scales the light beam exiting the light collecting element. The imaging apparatus forms an image from the light beam. The projection lens projects the image to a surface.12-23-2010
20100321596PROJECTION OPTICAL SYSTEM AND PROJECTION DISPLAY UNIT USING THE SAME - A projection optical system which improves the illumination efficiency includes a light source, an optical waveguide into which light from the light source enters and from which the light exits as reflected light, a diffuser diffusing light that has exited from the optical waveguide, a prism sheet into which light diffused by the diffuser enters and in which prisms are arranged on one plane, and a rod integrator into which light transmitted through the prism sheet enters.12-23-2010
20120200788Distributed Polarizer And Liquid-Crystal Projection Display Apparatus Using The Same - A distributed polarizer includes first, second, and third regions. The first region has a first transmission axis extending in a first direction. The second region has a second transmission axis extending in a second direction different from the first direction. The third region has a third transmission axis extending in a third direction different from the first direction and the second direction.08-09-2012
20080252799WIRE GRID POLARIZER HAVING DUAL LAYER STRUCTURE AND METHOD OF FABRICATING THE SAME - Provided are a wire grid polarizer having a double layer structure, with two metallic wire layers, and a method of fabricating the same. The wire grid polarizer having a double layer structure includes: a light transmitting substrate; a plurality of first conductive metallic wires arranged on the light transmitting substrate parallel to one another at a predetermined period; a light transmitting interlayer arranged on the first conductive metallic wires; and a plurality of second conductive metallic wires arranged on the light transmitting substrate parallel to one another at a predetermined period, wherein the first conductive metallic wires and the second conductive metallic wires are arranged alternately.10-16-2008
20090296008POLARIZATION CONVERSION ELEMENT, POLARIZED LIGHT ILLUMINATION OPTICAL ELEMENT, AND LIQUID CRYSTAL PROJECTOR - A prism sheet is bonded to the bottom faces of rectangular prisms constituting a polarization beam splitter array. In the front face of the prism sheet, a plurality of rectangular prism elements are arranged in parallel to each other and a phase difference compensation film is formed on the surface. The edge lines of the rectangular prism elements are inclined at 45 degrees relative to the edge lines of the rectangular prisms. Linear polarized light of S-polarization component reflected by a polarized light separation film is reflected twice sequentially in a phase difference compensation film formed in a pair of oblique faces of the rectangular prism elements, so that the polarization direction is rotated by 90 degrees and then the light reenters the rectangular prism. Then, the light is transmitted through the polarized light separation film and then extracted from the rectangular prism.12-03-2009
20100026919PROJECTOR AND LIGHT MODULATION DEVICE - A light modulation device which modulates light entering from a light source, includes: a light diffusing unit which converts diffusion angle of the light into an angle larger than that before entering the light modulation device and releases the converted light.02-04-2010
20120147279PROJECTION DISPLAY APPARATUS - A projection display device includes: a light source unit including at least one light source configured to emit coherent light; an image light generation unit configured to generate an image light by modulating light emitted by the light source unit; a projection unit configured to project the image light; and a liquid crystal element, disposed in an optical path between the light source unit and the image light generation unit, configured to temporally change a phase and/or polarization of transmitted light, wherein: the liquid crystal element at least includes transparent electrodes respectively provided on opposing faces of a plurality of transparent substrates; a liquid crystal layer including smectic phase liquid crystal showing spontaneous polarization under voltage application is sandwiched between the transparent electrodes; and an AC voltage is applied to the liquid crystal layer through the transparent electrodes.06-14-2012
20100026918RETARDATION COMPENSATION ELEMENT, VAN LIQUID CRYSTAL DISPLAY DEVICE, AND LIQUID CRYSTAL PROJECTOR - A retardation compensation element (02-04-2010
20110115992PROJECTION DISPLAY APPARATUS - Projection display apparatus 05-19-2011
20120307167POLARIZATION CONVERTING ELEMENT, POLARIZATION CONVERTING UNIT, AND PROJECTION-TYPE IMAGING DEVICE - A polarization separating element is configured to include a translucent substrate formed of a crystal material having birefringent properties and optically rotatory power and a polarization separating portion formed on the incidence-side surface of the translucent substrate so as to transmit a P-polarized light beam and reflect an S-polarized light beam. A reflecting element that reflects the S-polarized light beam reflected by the polarization separating portion is disposed so as to be separated approximately in parallel to the translucent substrate. A predetermined function is set such that the P-polarized light beam having passed through the polarization separating portion and been incident to the translucent substrate is converted so as to be parallel to the polarization plane of the S-polarized light beam so that the P-polarized light beam is output as the S-polarized light beam.12-06-2012
20120307166PROJECTION TYPE DISPLAY APPARATUS AND OPTICAL UNIT - In a blue-color liquid crystal panel out of a plurality of liquid crystal panels used in a projection type display apparatus, an integral value obtained by integrating absorbance of the liquid crystal layer thereof in a wavelength range from 300 nm to 350 nm is smaller in comparison with those of the other liquid crystal panels (a red-color liquid crystal panel and a green-color liquid crystal panel). In addition, the absorption end on the long wavelength side of the liquid crystal layer of the blue-color liquid crystal panel is positioned on the short wavelength side in comparison with the liquid crystal layers of the red-color liquid crystal panel and the green-color liquid crystal panel.12-06-2012
20120038839MICRO PROJECTOR MODULE - A micro projector module according to the present invention is provided. The micro projector module includes a substrate, a controller chip, a LCOS chip, a glass and a liquid crystal layer. The controller chip is positioned on the upper surface of the substrate and electrically connected to the substrate. The LCOS chip is positioned on the controller chip and electrically connected to the substrate. The glass is positioned on the LCOS chip and the liquid crystal layer is disposed between the LCOS chip and glass.02-16-2012
20110109818Liquid crystal display device, method for manufacturing the same, and projection-type liquid crystal display apparatus with liquid crystal display device - A method for manufacturing a liquid crystal display device includes: an active matrix substrate formation step of forming an active matrix substrate, wherein the active matrix substrate formation step includes a first step of forming a microlens array having a plurality of microlenses on a transparent substrate, a second step of forming an oxide film on the microlens array, a third step of forming a TFT array having a plurality of TFT devices above the oxide film, and a fourth step of forming a light-blocking film selectively to define pixel openings.05-12-2011
20120013813Field-of-view compensated polarization switch for short-throw 3D projection - Generally, this disclosure concerns the angle sensitivity of polarization switch elements and the resulting impact of the ray direction on performance. More specifically, apparatus and techniques for compensating the angular sensitivity of liquid crystal (LC) polarization switches are described that enhance the performance of polarization switches. For example, a polarization switch is disclosed that transforms linearly polarized light of an initial polarization orientation that includes a first and second liquid crystal cell with a compensator located between the LC cells. The compensator layer is operable to enhance the field of view through the polarization switch. Such compensation techniques are particularly useful for short-throw projection environments.01-19-2012
20120113333LIQUID CRYSTAL DEVICE AND PROJECTION-TYPE DISPLAY APPARATUS - A liquid crystal device and a projection-type display apparatus provided with the liquid crystal device are provided in which it is possible to prevent an electrochemical corrosion reaction from occurring in the course of a process. An aluminum film constituting a first terminal and a first electrode for inter-substrate connection formed to be electrically separated (insulated) from each other on one face side of a first substrate of the liquid crystal device, an ITO film constituting a dummy pixel electrode and a second electrode of inter-substrate connection, a common electrode (second substrate side electrode) formed on a second substrate are electrically connected by an inter-substrate connection member provided between the first substrate and the second substrate.05-10-2012
20110085095DISPLAY SYSTEM, SCREEN AND PROJECTOR - A display system includes: a screen in which, in an area on which invisible light is incident, a scattering state where visible light is scattered and a transmission state where visible light is transmitted are switched; an image projection system to project an image of the visible light onto the screen; and an invisible light projection system to project the invisible light onto the screen and to cause an area of the screen onto which a desired portion of the image is projected to have the scattering state.04-14-2011
20090135317ADDRESSABLE BACKLIGHT FOR LCD PANEL - A display unit includes an LCD which receives an array of pixel data for displaying an image at a first dynamic range. A projector projects colored light of the image at a second dynamic range. The LCD combines the array of pixel data with the colored light to display the image at a third dynamic range. The third dynamic range is greater than the first or second dynamic range.05-28-2009
20090135316PROJECTION IMAGE DISPLAY APPARATUS AND POLARIZATION CONVERTER - Disclosed is a projection image display apparatus which includes a light source; and an illumination optics including a phase difference plate. The illumination optics is configured to form an image on a liquid crystal panel with light beams emitted from the light source. The phase difference plate has a deviation in viewing angle characteristics and is arranged to yield a desirable phase difference for a light beam directed in a direction of high intensity among incident light beams distributed at various angles.05-28-2009
20110102688REAR PROJECTION SYSTEM AND REAR PROJECTION SCREEN - To provide a rear projection system, which offers a high transparency and a high efficiency of projection, a rear projection system is proposed, comprising: a projector (05-05-2011
20120120329PROJECTION DEVICE WITH BRIGHTNESS ADJUSTMENT FUNCTION AND METHOD THEREOF - A projection device with a brightness adjustment function includes a polarization beam splitter (PBS), a light source, a reflective display, a lens module, a power supply unit, a light detection unit and a power controller. The light source emits light to the PBS. The PBS reflects a portion of the light to the reflective display, and transmits a remaining portion of the light. The lens module projects the images. The light detection unit acquires a digital value of a portion of the light reflected by the PBS that is not received by the reflective display, and compares the digital value with a predetermined digital value to generate a control signal. The power controller for adjusts power from the power supply unit to the light source according to the control signal until the digital value matches the predetermined digital value of the light from the light source.05-17-2012
20120249897ELECTROOPTIC DEVICE, PROJECTION DISPLAY DEVICE, AND ELECTRONIC DEVICE - When electrically connecting a second electrode layer and a pixel electrode through a plug electrode provided in a hole of an interlayer insulation film, the plug electrode is formed in such a manner as to fill the contact hole formed in the first insulation film, and then a second insulation film is formed. Then, the second insulation film is polished from the surface side to expose the plug electrode, and thereafter a pixel electrode is formed on the surface side of the second insulation film.10-04-2012
20120249896LIQUID CRYSTAL DEVICE AND PROJECTION-TYPE DISPLAY DEVICE - In an element substrate of a liquid crystal device, a peripheral electrode to which a potential different from a common potential applied to a dummy pixel electrode and the like is applied is formed in a region interposed between an image display region and a sealing material. An electrical supply line that supplies the potential from the side to the peripheral electrode runs through the outside from a scanning line driving circuit portion.10-04-2012
20100208151COOLING DEVICE FOR ELECTRONIC APPARATUS AND LIQUID CRYSTAL PROJECTOR - A cooling device for use in an electronic apparatus is capable of achieving a sufficient cooling capability with an effective replacement method in a narrow flow path. The cooling device for the electronic apparatus, which includes a plurality of members juxtaposed such that surfaces thereof confront each other, at least one of the members including a heat radiating surface, includes a first air-cooling member which includes a first outlet port that creates a first air stream, and a second air-cooling member which includes a second outlet port that creates a second air stream to flow in a direction different from the first air stream. The first and second outlet ports have different opening widths, respectively.08-19-2010
20100079687LCD APPARATUS - An LCD apparatus includes LCD panels for modulating irradiated light based on picture signals, a projection lens for extendedly projecting the light modulated by the LCD panels, a light source for emitting light to irradiate the LCD panels, an inorganic polarizer having a relatively higher degree of polarization and disposed on a light-emission side of each of the LCD panels, and an absorptive polarizer having a lower degree of polarization than the inorganic polarizer and disposed on a light-emission side of the inorganic polarizer. The inorganic polarizer having the higher degree of polarization and the absorptive polarizer having the lower degree of polarization have respective light transmission axes coincident with each other.04-01-2010
20110181801REFLECTIVE LIQUID CRYSTAL PROJECTOR - A reflective liquid crystal projector according to the aspect of the invention includes a light source, a reflective liquid crystal panel, and a wire grid polarization beam splitter element. The wire grid polarization beam splitter element is provided with a polarization beam split surface that reflects a first polarized light component and transmits a second polarized light component. The reflective liquid crystal projector also includes a projection optical system that projects the first polarized light component, and an aperture stop that is disposed on an optical path of the light beam emitted from the light source. The aperture stop limits the amount of first light more than that of second light. The first light is divergent from the reflective liquid crystal panel to the polarization beam split surface. The second light is divergent from the reflective liquid crystal panel to the polarization beam split surface.07-28-2011
20110181799PROJECTOR - A projector includes: a reflection-type polarizing plate which separates entering luminous flux by polarization into first linearly polarized light and second linearly polarized light whose polarization directions cross each other at right angles; a reflection-type light modulation device disposed inclined to the reflection-type polarizing plate to modulate the first linearly polarized light separated by polarization by the reflection-type polarizing plate according to image information and emit the modulated first linearly polarized light toward the reflection-type polarizing plate; a supporting body which supports the reflection-type polarizing plate and the reflection-type light modulation device; and a light shielding member disposed in an area to emit side of the second linearly polarized light which entering the reflection-type polarizing plate before modulation by the reflection-type light modulation device and separated by polarization, and connected with the supporting body.07-28-2011
20090059102Dual-purpose projective display - A projective display is signally connected with an electronic device capable of exporting an image, so as to allow a user to optionally view the image exported by the electronic device, wherein the projective display comprises: 03-05-2009
20120075539PROJECTION DISPLAY DEVICE - A projection display device is provided with: a light source portion including at least one light source that emits coherent light; an image light generation portion that generates image light by modulating the light emitted by the light source portion; a projection portion that projects the image light; a liquid crystal scattering element that is disposed on an optical path between the light source portion and the image light generation portion and temporally changes scattering state for passing light; a transparent electrode formed on each of opposing surfaces of a plurality of transparent substrates of the liquid crystal scattering element; and a liquid crystal layer that is sandwiched between the transparent electrodes and has liquid crystal of a smectic phase having spontaneous polarization in voltage applied state, and is characterized in that an AC voltage is applied to the liquid crystal layer through the transparent electrode.03-29-2012
20120236217LIGHT EMITTING DIODE ILLUMINATION DISPLAY - A display illumination module for the illumination of a rear-projection screen is provided in which an array of light sources are positioned adjacent to an optical modulating array layer for modulating the transmission of light emitted by the light sources. The light sources emit light within a defined angular range, and the optical modulating array layer is positioned relative to the array of light sources so that light from adjacent light sources does not overlap with the optical modulating array layer. One or more display modules may be incorporated into a display system that further comprises a rear projection screen that is preferably spatially offset from the optical modulating array layer so that light from adjacent light sources of a common colour overlaps on the screen. A composite display with seamless edge blending may be obtained by tiling multiple display illumination modules behind a common rear-projection screen.09-20-2012
20110109819VIDEO PROJECTOR - A video projector includes a holder for an optical component. The optical component is slid on and coupled to the holder. Frame portions parallel to the sliding direction include slide grooves and a thicknesswise direction clip that presses the optical component in a thicknesswise direction. A lower frame portion includes a rest that receives an end of the optical component. When the end of the optical component reaches the rest, a resilient clip returns to its original form and restricts movement of the optical component in a direction opposite to the sliding direction.05-12-2011
20120188470PROJECTION DISPLAY APPARATUS - A light valve forms image lights for the right and left eyes by time division and the polarization directions thereof are switched by a retardation panel, so as to be different in the image lights for the right and left eyes from each other, enabling observation of a stereoscopic image. A black-insertion unit is configured with a black-insertion liquid crystal panel and black-insertion polarizing elements, so as to insert light-shielding periods between the image lights for the right and left eyes. The black-insertion polarizing elements is moved between positions in a image light optical path and outside the optical path. Irrespective of the response speed of the light valve, a bright stereoscopic image with a small cross talk can be observed with passive system polarization glasses, with brightness of a two-dimensional image display being ensured.07-26-2012
20120188468ILLUMINATOR AND PROJECTOR - An illuminator includes: a light source that emits light; a first lens array including a plurality of first lenslets; a second lens array including a plurality of second lenslets corresponding to the plurality of first lenslets; a polarization conversion element that converts light fluxes from the second lens array into polarized light fluxes and outputs the polarized light fluxes; and a superimposing lens that superimposes sub-light fluxes from the polarization conversion element, wherein the plurality of first lenslets and the plurality of second lenslets are each arranged in a matrix, the polarization conversion element is formed of a plurality of columns of polarization conversion units that convert the light fluxes from the plurality of second lenslets into the polarized light fluxes on a column basis, and the number of columns of the polarization conversion units is fewer than the number of columns of the first lenslets and the second lenslets.07-26-2012
20120262635ELEMENTARY IMAGE ACQUISITION OR DISPLAY DEVICE - An elementary image acquisition or display device, including a focusing structure with microlenses, each microlens being shaped to focus incident light beams towards a substrate while avoiding intermediate conductive tracks and vias.10-18-2012
20120229715PROJECTOR - A projector includes an illumination optical system capable of emitting first light and second light of a wavelength longer than that of the first light; a first liquid crystal panel constituted so as to include a first liquid crystal layer and capable of modulating the first light emitted from the illumination optical system; a second liquid crystal panel constituted so as to include a second liquid crystal layer having a transition temperature from a liquid crystal phase to an isotropic phase higher than that of the first liquid crystal layer and capable of modulating the second light emitted from the illumination optical system; a projection optical system projecting the first light modulated by the first liquid crystal panel and the second light modulated by the second liquid crystal panel; and a cooling mechanism for cooling the first liquid crystal layer.09-13-2012
20110122328Projection-Type Image Display Apparatus - A projection-type image display apparatus includes an enlarging projection optical unit which is configured to project an image displayed on an image display element enlargedly upon a display portion, a display controller portion which is configured to move a position of the image within a display surface of the image display element. The enlarging projection optical unit has a lens group for projecting the image enlargedly, wherein the display controller portion moves the image so as to display the image within the display surface of the image display element by projecting a portion selectively fitted to the display portion when displaying on the display portion through the enlarging projection optical unit.05-26-2011
20120268668PROJECTION DEVICE FOR A VARIETY OF LIGHT DEVICE - A projection assembly is arranged to be added onto or built into at least one LED-unit or other light-unit of an illuminated object that has more than one LED or other light source to cause the object to be illuminated and show the object's design or appearance while also offering illumination to people. The illuminated object may include all kinds of seasonal lighting, regular light fixtures, track lights, desktop lights, and battery operated lights having more than one light-unit or LED-unit.10-25-2012
20120320288LIQUID CRYSTAL LENS AND DISPLAY INCLUDING THE SAME - A liquid crystal lens which controls an optical path and a display which includes the liquid crystal lens. The liquid crystal lens includes a first electrode and a second electrode facing each other, a liquid crystal layer interposed between the first electrode and the second electrode and having flat top and bottom surfaces, and a dielectric layer interposed between the second electrode and the liquid crystal layer. The dielectric layer includes a section in which capacitance between top and bottom surfaces of the dielectric layer changes along a horizontal direction.12-20-2012
20120086878LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS - A first peripheral electrode and a second peripheral electrode are provided at a peripheral region sandwiched between a pixel region and a seal material in a first substrate of a liquid crystal device, and strength of electric potentials which are applied to the first peripheral electrode, the second peripheral electrode, and a common electrode of an opposite substrate satisfies the condition of the second peripheral electrode04-12-2012
20120092570LIQUID CRYSTAL PANEL SUBSTRATE, LIQUID CRYSTAL PANEL, AND ELECTRONIC DEVICE AND PROJECTION DISPLAY DEVICE USING THE SAME - In a liquid crystal substrate in which a matrix of reflecting electrodes is formed on a substrate, a transistor is formed corresponding to each reflective electrode and a voltage is applied to the reflective electrode through the transistor. A silicon oxide film having a thickness of 500 to 2,000 angstroms is used as the passivation film and the thickness is set to a value in response to the wavelength of the incident light to maintain a substantially constant reflectance.04-19-2012
20130021541ELECTRO-OPTIC DEVICE AND PROJECTION TYPE DISPLAY APPARATUS - An electro-optic device includes a substrate body (transparent substrate) of a second substrate. The substrate body is provided with a first groove opened to a space (inter-pixel area) between pixel electrodes adjacent to each other. A transparent film is formed on one side face of the substrate body and side faces of the first groove, a second groove deeper than the first groove narrower than the first groove is formed at an area overlapped with the first groove in plan view in the transparent film. For this reason, light which tends to be directed to the inter-pixel area is directed to the pixel electrodes using the side faces of the second groove as reflection faces.01-24-2013
20130021540ELECTRO-OPTIC DEVICE, METHOD OF PRODUCING ELECTRO-OPTIC DEVICE, AND PROJECTION TYPE DISPLAY APPARATUS - An electro-optic device is provided. In the electro-optic device, when a groove is sealed to be hollow, a sacrificial film is formed in the groove before forming a first sealing film, the first sealing film is formed, and then the sacrificial film is removed through a penetration portion of the first sealing film. A second sealing film is formed on the first sealing film, and the penetration portion of the first sealing film is blocked by the second sealing film. For this reason, it is possible to form the first sealing film to block an opening portion of the groove, and it is possible to prevent the first sealing film from being formed up to the inside of the groove.01-24-2013
20120242914LIQUID CRYSTAL DEVICE AND PROJECTION-TYPE DISPLAY APPARATUS - In an element substrate of a liquid crystal device, in a peripheral region interposed between an image display region and a seal material, a peripheral electrode to which a potential is applied for trapping ionic impurities which is different from a common potential applied to a dummy pixel electrode or the like is formed. In the peripheral electrode, an electrode width of a first portion opposing a sealing material provided at a liquid crystal injection opening of the seal material is set to be greater than electrode widths of the other portions.09-27-2012
20130148040PROJECTION SYSTEM - A projection system includes an illumination device, a LCOS microdisplay element, an optical projection lens, a total internal reflection prism, and a polarizer. The polarizer is a reflective polarizer or an absorptive polarizer. The total internal reflection prism is arranged between the illumination device, the LCOS microdisplay element and the optical projection lens. A plurality of lighting paths are created between the illumination device and the LCOS microdisplay element. A plurality of imaging paths are created between the LCOS microdisplay element and the optical projection lens. The polarizer is only located in the lighting paths.06-13-2013
20100283923LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS - A liquid crystal device which includes a first substrate having a plurality of reflective pixel electrodes on a surface thereof, an optically transparent second substrate opposing the surface having the reflective pixel electrodes of the first substrate, and a liquid crystal layer between the first substrate and the second substrate, where the first substrate has antireflection films on side ends of the reflective pixel electrodes.11-11-2010
20100309396ELECTRO-OPTICAL DISPLAY DEVICE AND PROJECTOR - An electro-optical display device includes: a transmission-type liquid crystal panel that has a driving substrate and an opposing substrate facing each other with a liquid crystal interposed therebetween; a first light-transmissive substrate that is disposed on an outer side of the driving substrate; and a second light-transmissive substrate that is disposed on an outer side of the opposing substrate, wherein any one or more values of thermal expansion coefficients of a plurality of element substrates including at least the driving substrate, the opposing substrate, the first light-transmissive substrate, and the second light-transmissive substrate are negative, and any one or more values of the thermal expansion coefficients of the plurality of element substrates are positive.12-09-2010

Patent applications in class Projector including liquid crystal cell (s)

Patent applications in all subclasses Projector including liquid crystal cell (s)