Patent application number | Description | Published |
20080266897 | Surface illumination device and a liquid crystal display device using such a surface illumination device - A surface illumination device is provided with a laser light source capable of emitting a laser light, an incident surface on which the laser light is incident, a light guiding plate having a principal surface from which the laser light emerges as a surface emergent light, and an irradiating member capable of irradiating the laser light from the laser light source over a specified range extending in the longitudinal direction of the light guiding plate. | 10-30-2008 |
20090059116 | LASER APPARATUS - The present invention comprises: a laser light source | 03-05-2009 |
20090147811 | WAVELENGTH CONVERSION LASER LIGHT SOURCE, LASER LIGHT SOURCE DEVICE AND TWO-DIMENSIONAL IMAGE DISPLAY DEVICE ADOPTING THE SAME, AND METHOD OF SETTING TEMPERATURE OF WAVELENGTH CONVERSION ELEMENT - A wavelength conversion laser light source includes: an element temperature switching section that switches a temperature of the wavelength conversion element according to a harmonic wave output value as set in an output setting device, and the element temperature switching section for switching a temperature of a wavelength conversion element according to a harmonic wave output level as set in the output setting device, wherein the element temperature switch section includes an element temperature holding section that holds the wavelength conversion element at the temperature as switched by the element temperature switching section. | 06-11-2009 |
20090190072 | Wavelength separator, planar illumination device and liquid crystal display device using the wavelength separator - A wavelength separator is provided with a reflective color filter arranged to intersect with an optical path of light emerging from a principal surface of a light guide plate, and a recycle portion arranged at a side of the light guide plate opposite to the reflective color filter. Out of light incident on the light guide plate, light reflected by the reflective color filter is returned to the reflected color filter again by being reflected by the recycle portion via the light guide plate. | 07-30-2009 |
20090219958 | WAVELENGTH CONVERTING LASER AND IMAGE DISPLAY - A wavelength converting laser includes: a fundamental-wave laser light source emitting a fundamental wave; and a wavelength conversion element converting the fundamental wave emitted from the fundamental-wave laser light source into a converted wave having a different wavelength from the fundamental wave, in which: a pair of fundamental-wave reflecting surfaces is arranged on both end sides of the wavelength conversion element in the directions of an optical axis thereof and reflects the fundamental wave to thereby pass the fundamental wave a plurality of times inside of the wavelength conversion element, and at least one of the fundamental-wave reflecting surfaces transmits the converted wave; and the pair of fundamental-wave reflecting surfaces allows the fundamental wave to cross inside of the wavelength conversion element and form a plurality of light-concentration points at places different from a cross point of the fundamental wave. The wavelength converting laser is capable of obtaining a high conversion efficiency stably and being miniaturized. | 09-03-2009 |
20100039585 | PLANAR ILLUMINATION DEVICE, AND IMAGE DISPLAY DEVICE - A laser light source ( | 02-18-2010 |
20100045896 | LASER BACKSIDE IRRADIATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE - Provided are a laser backside irradiation device and a liquid crystal display device capable of reducing the thickness of the device and improving the contrast while making the luminance distribution substantially uniform. A laser backside irradiation device | 02-25-2010 |
20100053565 | LASER ILLUMINATING DEVICE AND IMAGE DISPLAY DEVICE - An object of the invention is to provide a laser illuminating device and an image display device that enable to remove speckle noises in a diffraction field and an image field, uniformly illuminate an illumination plane, and realize miniaturization. A laser illuminating device | 03-04-2010 |
20100073600 | PLANAR ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A planar illumination device | 03-25-2010 |
20100085631 | WAVELENGTH CONVERTER AND IMAGE DISPLAY WITH WAVELENGTH CONVERTER - Upon obtaining green light as wavelength converted light by causing infrared light to be incident on a wavelength conversion element, the absorption of the green light occurs due to the generation of ultraviolet light as sum-frequency light of the infrared light and the green light in the wavelength conversion element and the destruction of a crystal composing the wavelength conversion element occurs due to heat generated at this time. In a laser wavelength converter of the present invention, a condensed position of the infrared light in the wavelength conversion element is deviated from a position assumed to be optimal when the influence of the generated heat is ignored. Consequently, crystal destruction is suppressed, a high-efficiency wavelength conversion is enabled and high-output wavelength converted light exceeding several watts, which was difficult to attain in conventional wavelength conversion elements, is attained. | 04-08-2010 |
20100103966 | WAVELENGTH CONVERSION LASER, IMAGE DISPLAY DEVICE AND LASER PROCESSING DEVICE - A wavelength conversion laser is provided with a pair of fundamental wave reflecting surfaces for reflecting a fundamental wave to define a plurality of fundamental wave paths passing a wavelength conversion element at different angles, and a control unit for controlling wavelength conversion efficiencies so that the wavelength conversion efficiency on a specific one of the plurality of fundamental wave paths extending in different directions between the pair of fundamental wave reflecting surfaces is highest. | 04-29-2010 |
20100110517 | OPTICAL SCANNING DEVICE AND TWO-DIMENSIONAL IMAGE DISPLAY DEVICE USING THE SAME - An optical scanning device capable of stably and uniformly performing linear optical scanning by using a high-brightness light source is provided. The device includes: at least one laser light source ( | 05-06-2010 |
20100195022 | LIQUID CRYSTAL DISPLAY BACKLIGHT DEVICE AND LIQUID CRYSTAL DISPLAY - It is aimed to provide an LCD backlight device and liquid crystal display that can suppress light quantity loss and ensure uniform brightness. | 08-05-2010 |
20100245719 | WAVELENGTH CONVERSION DEVICE AND IMAGE DISPLAY APPARATUS USING THE SAME - A wavelength conversion device includes a laser light source that emits a fundamental wave; a wavelength conversion element that converts the fundamental wave into a second harmonic wave; and an optical system including a wavelength selective mirror that reflects the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave, while transmitting therethrough the second harmonic wave generated by wavelength conversion, wherein the optical system makes the fundamental wave transmitted through the wavelength conversion element without being converted into the second harmonic wave enter the wavelength conversion element again to be subjected to wavelength conversion once or more than once, while being focused by the wavelength selective mirror, and the conversion efficiency in at least one of the second stage and stages subsequent to the second stage is higher than the conversion efficiency in the first stage, where the conversion efficiency in each stage is defined as: (a second harmonic wave generated in one stage)/(a square of the fundamental wave entered in the one stage). | 09-30-2010 |
20100289986 | LIQUID CRYSTAL DISPLAY APPARATUS - A wavelength selection substrate | 11-18-2010 |
20110058122 | SURFACE ILLUMINATION APPARATUS AND LIQUID CRYSTAL DISPLAY USING SAME - A surface illumination apparatus has: a plurality of light sources ( | 03-10-2011 |
20110148661 | GUIDING DEVICE - A guiding device includes: a laser light source that emits a laser beam; and a linear guiding portion that propagates the laser beam and is extended in the guiding direction on a road surface on which a mobile body moves. The linear guiding portion is provided with a function of radiating the laser beam in the guiding direction from the surface where linear guiding portion extends, while propagating the laser beam, and guiding the mobile body by light. | 06-23-2011 |
20110170172 | WAVELENGTH CONVERSION LASER DEVICE AND IMAGE DISPLAY DEVICE USING THE SAME - A wavelength conversion laser device includes a laser light source which emits a laser beam, two reflective surfaces which reflect therefrom a laser beam, a wavelength converter provided between the two reflective surfaces, which converts a laser beam into a wavelength-converted laser beam, and condensing optics which condense the laser beams to be injected between the two reflective surfaces, wherein at least one of the two reflective surfaces has a curvature for reflecting a laser beam to be re-injected into the wavelength converter between the two reflective surfaces repeatedly while forming multi paths of laser beams injected into the wavelength converter at different incident angles, and the condensing optics are arranged to disperse beam waists of the laser beams in the wavelength converter, which reciprocate between the two reflective surfaces. | 07-14-2011 |
20110228195 | LIQUID CRYSTAL DISPLAY BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME - An LCD backlight ( | 09-22-2011 |
20120012759 | WAVELENGTH CONVERSION LASER LIGHT SOURCE, LASER LIGHT SOURCE DEVICE AND TWO-DIMENSIONAL IMAGE DISPLAY DEVICE ADOPTING THE SAME, AND METHOD OF SETTING TEMPERATURE OF WAVELENGTH CONVERSION ELEMENT - A wavelength conversion laser light source includes: an element temperature switching section that switches a temperature of the wavelength conversion element according to a harmonic wave output value as set in an output setting device, and the element temperature switching section for switching a temperature of a wavelength conversion element according to a harmonic wave output level as set in the output setting device, wherein the element temperature switch section includes an element temperature holding section that holds the wavelength conversion element at the temperature as switched by the element temperature switching section. | 01-19-2012 |
20120013720 | DISPLAY DEVICE - A display device is provided with an image display portion for temporally switching a left frame image to be viewed by a left eye, and a right frame image to be viewed by a right eye to emit video light so that a video is stereoscopically perceived; a light deflector for deflecting the video light emitted from the image display portion; and a controller for controlling the light deflector to adjust a deflection direction of the video light output from the light deflector. The image display portion changes polarization characteristics of the video light area by area, and the light deflector deflects the video light in response to the polarization characteristics so that the video light of the left frame image is incident to the left eye and the video light of the right frame image is incident to the right eye. | 01-19-2012 |
20120098819 | IMAGE DISPLAY DEVICE - An image display device includes a laser source for emitting a laser beam, an image forming element which uses the laser beam to emit image light for displaying an image, a first diffraction element for diffracting the image light, and a controller for controlling a display position of the image on the basis of a wavelength of the laser beam and a temperature of the first diffraction element. | 04-26-2012 |
20120099170 | SEE-THROUGH DISPLAY AND HEAD-UP DISPLAY - A see-through display including a light source for emitting light, a projection optical system for projecting the light emitted by the light source, and a volume hologram for deflecting the light projected by the projection optical system. The volume hologram has a linear expansion coefficient of α (/° C.) and interference fringes recorded with recording light having a wavelength of Λ (nm). The wavelength of the light emitted by the light source has a temperature dependency of K (nm/° C.), and the wavelength Λ (nm) and the temperature dependency K (nm/° C.) satisfy the relationship of 0≦K/Λ≦2α. | 04-26-2012 |
20120236046 | DISPLAY APPARATUS, MOBILE OBJECT AND CONTROL APPARATUS - A display apparatus, includes: a display light emission unit which includes a light source, forms an image, and emits display light corresponding to formed image; a deflection unit which deflects the display light; a narrow band reflection unit which has characteristics of reflecting only light in a reflected wavelength range and transmitting light of wavelengths other than the reflected wavelength range, and reflects the display light incident from the deflection unit towards a viewpoint; and a control unit which changes an incidence angle at which the display light is incident on the narrow band reflection unit, in accordance with change in a wavelength of the light, wherein the narrow band reflection unit is configured such that the reflected wavelength range changes when an incidence angle of light changes, and the control unit changes the incidence angle such that a wavelength of the light is included within the reflected wavelength range. | 09-20-2012 |
20120250306 | TRANSMISSIVE DISPLAY DEVICE - A transmissive display device includes: a light source which outputs light; a display part which receives the light from the light source and generates display light representing an image; a deflecting element which changes a direction of the display light emitted from the display part; and a transmissive reflector which reflects, towards a user, light of a wavelength included in the display light emitted from the display part, and transmits light of other wavelengths. An angle formed by a straight line, which extends between an upper edge of an incident area of the display light on the transmissive reflector and a lower portion of an eyebox which is defined as a visible range of the reflected light from the transmissive reflector, with respect to a horizontal line is smaller than a difference between an emission angle and an incident angle of the display light at the transmissive reflector. | 10-04-2012 |
20120287037 | LIGHT-EMITTING DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE AND IMAGE DISPLAY DEVICE THAT USE THE SAME - A light-emitting device used in a liquid crystal display device is provided with a planar illuminator that focuses emitted light on a predetermined light focus point, and an optical deflector that two dimensionally deflects the light from the planar illuminator. The planar illuminator switches an emission direction of the light to enable alternate switching between a first light focus state in which the predetermined light focus point is the position of a right eye of a viewer and a second light focus state in which the predetermined light focus point is the position of a left eye of the viewer. The optical deflector can modulate each of the predetermined light focus point in the first light focus state and the predetermined light focus point in the second light focus state according to movement of the viewer. | 11-15-2012 |
20130077024 | OPTICAL DEFLECTOR, OPTICAL DEFLECTION APPARATUS, AND LIQUID CRYSTAL DISPLAY APPARATUS USING THE OPTICAL DEFLECTOR AND THE OPTICAL DEFLECTION APPARATUS - An optical deflector which deflects incident light, includes an optical deflection element which deflects the incident light when a distribution of internal refraction indexes of the optical deflection element is modulated. The light incident on the optical deflection element is emitted from the optical deflection element after passing through the optical deflection element a plurality of times. | 03-28-2013 |
20130093663 | LIGHT DEFLECTOR AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME - A light deflector capable of deflecting light in a predetermined deflection direction and modulating the angle of deflection of light includes a plurality of liquid crystal deflection elements arranged in the predetermined deflection direction. In at least one pair of adjacent liquid crystal deflection elements, the dimension of one of the liquid crystal deflection elements in the predetermined deflection direction is different from the dimension of the other liquid crystal deflection element in the predetermined deflection direction. | 04-18-2013 |
20130093762 | DISPLAY DEVICE AND METHOD FOR CONTROLLING THE SAME - A display device includes: a light source which emits light; a light deflector having a deflection region in which the light from the light source is deflected toward a predetermined position; a liquid crystal panel on which the image is formed by the light from the light deflector; and a control unit which determines a total number of right and left eyes of one or more users and controls operation of the light deflector based on the determined total number of right and left eyes, wherein the control unit segments the deflection region into a plurality of deflection subregions based on the determined total number of right and left eyes and controls light deflection in the deflection subregions to deflect the light from the light source toward different positions at the same time. | 04-18-2013 |
20130113685 | DISPLAY DEVICE, DISPLAY METHOD, INTEGRATED CIRCUIT, PROGRAM - A display device includes: a light source which emits light; a position detection unit which detects an eye position of a user; a light deflection unit which deflects the emitted light toward the eye position detected by the position detection unit; a user identification unit which identifies which one of persons is the user; a deflection control unit which controls a deflecting direction in which the light deflection unit deflects the light, depending on the person identified as the user; and a liquid crystal display panel which receives the light from the light deflection unit and display an image formed by the light. | 05-09-2013 |
20130113767 | IMAGE DISPLAY DEVICE, IMAGE DISPLAY METHOD, AND INTEGRATED CIRCUIT - An image display device including a light source, an image display unit including plural pixels, a deflection unit which includes plural regions and deflects, for each of the plural regions, a light beam traveling from the light source toward the image display unit, and a light control unit which controls the deflection unit to cause each of light beams passing through a corresponding one of the regions of the deflection unit to be deflected toward one of a first point and a second point that are different from each other, according to a pixel value of the pixel corresponding to the region. | 05-09-2013 |
20130155337 | LIQUID CRYSTAL DISPLAY DEVICE - Included is a light emitting unit, an optical deflector, a control unit, and a liquid crystal panel. The optical deflector includes a first optical deflector and a second optical deflector which are arranged side by side in a direction from a light incident side to a light emitting side. A maximum light deflection angle of the first optical deflector is smaller than a maximum light deflection angle of the second optical deflector, and a maximum light deflection speed of the first optical deflector is higher than a maximum light deflection speed of the second optical deflector. The first optical deflector includes a first optical deflection layer and a second optical deflection layer stacked in the direction from the light incident side to the light emitting side. Each of the first and second optical deflection layers includes the liquid crystal deflection elements arranged in the planar state. | 06-20-2013 |
20130182302 | SEE-THROUGH DISPLAY DEVICE AND VEHICLE HAVING SEE-THROUGH DISPLAY DEVICE MOUNTED THEREON - The present application discloses a see-through display device a light source configured to emit light, a projection optical system configured to project image light generated from the light; a transmissive hologram including a first surface which the image light enters from the projection optical system; and an interface configured to cause Fresnel reflection of the image light deflected by the hologram. The hologram includes a first interference fringe recorded by object light and reference light which are incident on the first surface by means of two-light flux interference. The image light incident on the first surface is deflected by the first interference fringe toward the interface. The interface reflects the image light toward the first surface. | 07-18-2013 |
20130286678 | DISPLAY DEVICE - A display device includes: a first light source which emits light; a second light source which emits light; a display panel which displays an image; a first light guide plate and a second light guide plate which guide, to the display panel, the light from the first light source and the light from the second light source, respectively; and a control unit which causes one of the first light source and the second light source to emit the light. A first divergence angle obtained when the light from the first light source enters the first light guide plate is larger than a second divergence angle obtained when the light from the second light source enters the second light guide plate. | 10-31-2013 |
20140118825 | STEREOSCOPIC IMAGE DISPLAY APPARATUS AND STEREOSCOPIC IMAGE DISPLAY METHOD - A stereoscopic image display apparatus including: a light source unit; a light guide plate having an incidence surface and an emission surface; and a liquid-crystal panel which spatially modulates light. The light source unit emits the light so that the light is incident on the incidence surface in the first and second directions for the right and left eyes of a viewer, which are different from each other and each is inclined at a predetermined angle in the emission surface with respect to a reference direction perpendicular to an alignment direction of the right and left eyes of the viewer. Also, the light emitted from the emission surface of the light guide plate is in a direction which is determined according to the propagation direction of the incident light and in which a component in the alignment direction, included in the propagation direction, is maintained. | 05-01-2014 |
20140160383 | LIGHT DEFLECTOR, METHOD OF MANUFACTURING LIGHT DEFLECTOR, AND LIQUID CRYSTAL DISPLAY - A light deflector which deflects incident light and emits the deflected light, by changing a refractive index of a liquid crystal: a pair of ITO films; a plurality of prisms which are provided between the pair of transparent electrodes and are arranged on a facing surface of one of the pair of transparent electrodes, the facing surface facing a surface of the other one of the pair of transparent electrodes; two spacers arranged between the pair of transparent electrodes, and having, in a direction from one of the pair of transparent electrodes toward the other, widths which (i) are greater than widths of the prisms and (ii) are identical to each other; and a liquid crystal which is provided, within a space between the pair of transparent electrodes, in a portion other than a portion where the prisms and the two spacers exist. | 06-12-2014 |