Himax Display, Inc. Patent applications |
Patent application number | Title | Published |
20160131898 | PROJECTION DISPLAY APPARATUS - A projection display apparatus includes a light source configured to emit a first light, a reflective light modulator configured to modulate the first light to form a second light conveying a rendered image, a polarizer and a light guide plate. The light guide plate can include a plurality of optical elements embedded in the thickness of the light guide plate or provided on an outer surface of the light guide plate. An illuminating light entering the light guide plate can be redirected toward the light modulator by reflection at the grooves or optical elements. Moreover, an image light from the light modulator can travel through the light guide plate to the polarizer. | 05-12-2016 |
20150346391 | METHOD FOR FORMING ANTI STICTION COATING AND ANTI STICTION COATING THEREOF - A method for forming an anti-stiction coating on a surface of a semiconductor device is provided. Using atomic layer deposition (ALD) processes to activate surface prior to anti-stiction coating deposition, anti-stiction coating having strong chemical bonding to the surface is obtained. | 12-03-2015 |
20150277167 | LIQUID CRYSTAL DISPLAY PANEL - A liquid crystal display panel including a bottom layer, a first alignment layer, a liquid crystal layer, a second alignment layer, a top layer and a plurality of conductive connectors electrically connecting the top layer and the bottom layer is provided. Each of the plurality of conductive connectors includes conductive powders. | 10-01-2015 |
20150264327 | PROJECTION DEVICE AND FABRICATION METHOD OF A POLARIZATION GRATING - A projection device including a light source, a reflective spatial polarization modulator, a polarization grating, and a projection lens is provided. The light source is configured to provide a light beam. The reflective spatial polarization modulator is disposed on a path of the light beam and configured to reflect the light beam and modulate a polarization state of the light beam. The polarization grating is disposed on the path of the light beam between the light source and the reflective spatial polarization modulator, wherein the reflective spatial polarization modulator reflects the light beam from the reflective spatial polarization modulator back to the polarization grating. The projection lens is disposed on the path of the light beam from the reflective spatial polarization modulator, wherein the polarization grating is disposed on the path of the light beam between the reflective spatial polarization modulator and the projection lens. | 09-17-2015 |
20150212357 | MANUFACTURING PROCESS FOR LIQUID CRYSTAL DISPLAY PANEL - A manufacturing method for a liquid crystal display panel is provided. After providing a substrate having an insulation layer thereon, a first metal composite layer is formed on the insulation layer and then patterned to form at least one first opening through the first metal composite layer. A first intermediate dielectric layer is formed within the at least one first opening and a second intermediate dielectric layer is formed on the patterned first metal composite layer. The second intermediate dielectric layer is patterned to form second openings through the second intermediate dielectric layer. A second metal composite layer is formed on the patterned second intermediate dielectric layer and then patterned to form at least one third opening. Then, a third intermediate dielectric layer is formed within the at least one third opening. | 07-30-2015 |
20150210538 | MEMS PACKAGE STRUCTURE - A MEMS package structure including a chip, a MEMS device, a lid, a sealant and a first moisture barrier is provided. The chip comprises an active surface. The MEMS system device is disposed on the active surface. The lid is covered on the chip and comprising a recess, wherein the MEMS device is in the recess. The sealant is disposed between the chip and the lid so as to seal the recess, wherein a thickness of the sealant is less than a height of the MEMS device. The first moisture barrier is sealed around the chip, the sealant and the lid. | 07-30-2015 |
20150065004 | PRESSING DEVICE FOR ASSEMBLING LIQUID CRYSTAL DISPLAY PANEL AND ASSEMBLING METHOD THEREOF - A pressing device for assembling a liquid crystal display panel is provided. The pressing device includes a base plate, a pressing plate, a first cushion and a second cushion. The pressing plate is disposed opposite to the base plate and adapted to move toward or away from the base plate. The first cushion is disposed between the base plate and the pressing plate. The second cushion is disposed between the pressing plate and the first cushion, wherein one of the first cushion and the second cushion has a hollow zone corresponding to a display area of the liquid crystal display panel. A method for assembling a liquid crystal display panel is further provided. | 03-05-2015 |
20140253857 | ACTIVE MATRIX AND DISPLAY PANEL - An active matrix including a substrate, a plurality of active devices, a plurality of pixel electrodes, a bottom reflective layer, and a plurality of conductive elements is provided. The active devices are arranged on the substrate in an array. The pixel electrodes are respectively disposed above the active devices. The bottom reflective layer is disposed between the substrate and the pixel electrodes. The conductive elements penetrate through the bottom reflective layer and respectively connect the pixel electrodes and the active devices. A display panel is also provided. | 09-11-2014 |
20140124656 | LIGHT SENSING METHOD - A light detecting method is provided. The light detecting method includes following steps. A light beam is sensed to generate a photocurrent. A predetermined current is subtracted from the photocurrent. The photocurrent is converted to a voltage. | 05-08-2014 |
20140062992 | PIXEL CIRCUITRY OF DISPLAY DEVICE - A pixel circuitry of a display device is provided to make a voltage level transmitted to a display element be close to a voltage level of a received data voltage, such that the pixel circuitry faithfully transmits the data voltage to the display element. The pixel circuitry of a display device includes a first write switch, a first write memory unit, a first voltage following module, and a display element. The first voltage following module is to detect a first data voltage stored in the first write memory unit, and to generate a corresponding first output voltage at a terminal of the display element based on a detection result. A first output terminal of the first voltage following module is controlled by a switching voltage. | 03-06-2014 |
20130250221 | DISPLAY DEVICE - A display device including an active device array substrate having an active surface, an opposite substrate, a first alignment unit, a second alignment unit, a liquid crystal layer and a sealant is provided. The opposite substrate disposed above the active device array substrate has a light transmissive surface, wherein the active surface and the light transmissive surface face each other. The first alignment unit is disposed on the active device array substrate and located on the active surface. The second alignment unit is disposed on the opposite substrate and located on the light transmissive surface, wherein the first alignment unit aligns with the second alignment unit. The liquid crystal layer is disposed between the first and the second alignment units. The sealant directly connects the active surface and the light transmissive surface, and surrounds peripherals of the liquid crystal layer, the first alignment unit, and the second alignment unit. | 09-26-2013 |
20130176347 | PROJECTION APPARATUS AND PROJECTION METHOD - A projection apparatus including an image panel, a projection lens, and a control unit is provided. The image panel is configured to provide an image beam and has a displaying area. The projection lens is configured to project the image beam to form an image. When the optical axis of the projection lens is tilted with respect to a normal of the image, the control unit commands a first portion of the displaying area to show a compressed frame corresponding to the image and commands a second portion of the displaying area to show a black border. A projection method is also provided. | 07-11-2013 |
20130120359 | METHOD AND SYSTEM FOR CONTROLLING SYNCHRONIZATION OF 3D SHUTTER GLASSES - A method for controlling synchronization of a 3D shutter glasses adapted to a system for controlling synchronization of the 3D shutter glasses is provided. The method includes the following steps. A plurality of synchronous images of a 3D image projected on a screen are sensed by an image sensor of the shutter glasses. The 3D image includes a plurality of left images and right images and the synchronous images. The left images and the right images are respectively synchronized with a left-eye liquid crystal shutter and a right-eye liquid crystal shutter of the 3D shutter glasses based on the sensing result when the left-eye liquid crystal shutter and the right-eye liquid crystal shutter are respectively turned on. Furthermore, a system for controlling synchronization of the 3D shutter glasses using this method is also provided. | 05-16-2013 |
20120257149 | DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME - A display device and a method for manufacturing the display device are provided. The display device includes a substrate and a color filter layer. A plurality of sub-pixel electrodes are formed on the substrate. The color filter layer is configured on the substrate. The color filter layer defines a plurality of color areas corresponding to the sub-pixel electrodes. Here, each of the color areas is partially overlapped with two of the sub-pixel electrodes adjacent to each other. | 10-11-2012 |
20120256217 | LIGHT-EMITTING DIODE PACKAGE - A light-emitting diode (LED) package including a substrate, an LED chip, a polarizer, and a supporter is provided. The LED chip is disposed on the substrate. The polarizer is disposed above the LED chip. The supporter is disposed on the substrate for supporting the polarizer. | 10-11-2012 |
20120133681 | GAMMA CORRECTION METHOD - A gamma correction method adapted for a liquid crystal display panel is provided. The gamma correction method includes the following steps. A reference gamma curve is provided. The LCD panel is lighted up with at least one of primary-color frames. Gamma voltages of the primary-color frame are set for the LCD panel based on the reference gamma curve to obtain at least one primary-color gamma curve. The gamma correction is performed on the LCD panel based on the at least one primary-color gamma curve or a linear combination curve of the at least one primary-color gamma curve. By using the gamma correction method, the LCD panel could be allowed to provide good image quality. | 05-31-2012 |
20120120355 | STRUCTURE OF REFLECTIVE DISPLAY PANEL - A structure of a reflective display panel including a silicon substrate, a liquid crystal layer and a stacked compensation film layer is provided. The liquid crystal layer disposed on the silicon substrate has a first phase retardation which is within a first retardation range. The stacked compensation film layer disposed on the liquid crystal layer has a second phase retardation which is within a second retardation range. The stacked compensation film layer is selected according to an optical characteristic of the liquid crystal layer so as to increase a contrast of the reflective display panel. | 05-17-2012 |
20120120084 | COLOR FILTER ARRANGEMENT FOR DISPLAY PANEL - A color filter arrangement for a display panel is provided. The display panel includes a first pixel and a second pixel. The first pixel includes a plurality of first sub-pixels with different colors. The second pixel includes a plurality of second sub-pixels with different colors. A first edge sub-pixel of the first sub-pixels is adjacent to (neighbor on) a second edge sub-pixel of the second sub-pixels. The first edge sub-pixel and the second edge sub-pixel have a same color. | 05-17-2012 |
20120062849 | PROJECTION APPARATUS - A projection apparatus including an illumination unit, a brightness detection circuit, a signal conversion circuit, and a control unit is provided. The illumination unit generates a light source according to a plurality of driving signals and provides a temperature sensing signal according to the temperature of the light source. The brightness detection circuit generates a plurality of brightness sensing signals. The signal conversion circuit converts the temperature sensing signal and the brightness sensing signals into temperature information and a plurality of brightness information. The control unit comprises a setting table for storing a predetermined temperature information and a plurality of predetermined brightness information, and the control unit adjusts the driving signals in order to identify the converted temperature information and the converted brightness information conform to the stored information in the setting table. | 03-15-2012 |
20120062263 | TEST METHOD OF LIQUID CRYSTAL DISPLAY PANEL - A test method of a liquid crystal display panel is provided. The liquid crystal display panel includes a plurality of pixels and a testing pad. The pixels are disposed at intersections between a first, a second, and a third data lines and a plurality of scan lines. In the test method, each of the scan lines is driven to connect liquid crystal capacitors of the pixels to the first, the second, and the third data lines. A first and a second test voltages are respectively supplied to the first and the second data lines, wherein the first test voltage is not equal to the second test voltage. The first data line is floated. The floated first data line is measured through the testing pad to determine whether the liquid crystal capacitors of the pixels electrically connected to the first and the second data lines are electrically connected with each other. | 03-15-2012 |
20120019565 | METHOD FOR DRIVING REFLECTIVE LCD PANEL - A method for driving a reflective LCD panel is provided. The driving method includes following steps: the reflective LCD panel is driven by a driving signal with alternate positive and negative polarities, wherein the driving signal has positive polarity for a first driving duration and the driving signal has negative polarity for a second driving duration; a color beam is provided to irradiate the reflective LCD panel during a partial time period of the first driving duration; and the color beam is provided to irradiate the reflective LCD panel during a partial time period of the second driving duration. | 01-26-2012 |
20120007901 | PIXEL CIRCUITRY OF DISPLAY DEVICE - A pixel circuitry of a display device is provided to make a voltage level transmitted to a display element be close to a voltage level of a received data voltage, such that the pixel circuitry faithfully transmits the data voltage to the display element. The pixel circuitry of a display device includes a first write switch, a first write memory unit, a first voltage following module, and a display element. The first voltage following module is to detect a first data voltage stored in the first write memory unit, and to generate a corresponding first output voltage at a terminal of the display element based on a detection result. A first output terminal of the first voltage following module is controlled by a switching voltage. | 01-12-2012 |
20120007849 | DISPLAY, PIXEL CIRCUITRY AND OPERATING METHOD OF PIXEL CIRCUITRY - A display, a pixel circuitry and an operating method of the pixel circuitry are provided. The display includes a source driver and a pixel circuitry. The source driver converts a first pixel data to a first polarity data voltage and a second polarity data voltage during a first frame period and converts a second pixel data to a third polarity data voltage and a fourth polarity data voltage during a second frame period. The pixel circuitry is coupled to the source driver. The pixel circuitry stores the first polarity data voltage and the second polarity data voltage during the first frame period, displays the first polarity data voltage and the second polarity data voltage during a first sub-period and a second sub-period of the second frame period respectively, and stores the third polarity data voltage and the fourth polarity data voltage during the second frame period. | 01-12-2012 |
20110316890 | DISPLAY AND REAL-TIME AUTOMATIC WHITE BALANCE METHOD THEREOF - A display and a real-time automatic white balance method thereof are provided. The display includes a first color light source and a second color light source. The real-time automatic white balance method includes following steps. A first target luminance of the first color light source and a second target luminance of the second color light source are provided. A luminance of the first color light source is detected to obtain a first current luminance. A second current luminance of the second color light source is calculated according to a ratio of the first target luminance to the first current luminance and the second target luminance. A luminance of the second color light source is adjusted according to the second current luminance. | 12-29-2011 |
20110298832 | COLOR SEQUENTIAL DISPLAY AND LIGHT SOURCE CONTROL METHOD THEREOF - A color sequential display and a light source control method of the color sequential display are provided. The light source control method includes the following steps. A frame data of a frame period is received, wherein the frame period includes a plurality of color sub-frame periods. The frame data is analyses to obtain gray distributions of a plurality of colors in the frame data. Whether all or a portion of a plurality of color light sources of the color sequential display are turned on in the frame period is determined according to the gray distributions of the colors. Wherein, a light emitting time of the turned on color light source is longer than any one of the color sub-frame periods. Therefore, the brightness displayed by the color sequential display can be enhanced. | 12-08-2011 |
20110228178 | POLARIZATION BEAM SPLITTER AND OPTICAL SYSTEM - A polarization beam splitter (PBS) includes a first prism, a second prism, an alignment layer, and a cholesteric liquid crystal (CLC) layer. The first prism has two first surfaces adjacent to each other and a first slanted surface that forms a first included angle with the two first surfaces, respectively. The second prism has two second surfaces adjacent to each other and a second slanted surface that forms a second included angle with the two second surfaces, respectively. The second slanted surface is opposite to the first slanted surface. The alignment layer is disposed on the first slanted surface of the first prism. The CLC layer is disposed between the alignment layer and the second slanted surface of the second prism. | 09-22-2011 |
20110228174 | LIGHT SOURCE CONTROL METHOD OF PROJECTOR - A light source control method of a projector is provided. The light source control method includes the following steps. A frame data of a frame period is received. Gray distributions of a plurality of colors in the frame data are obtained by analyzing the frame data. Whether to shut all or a portion of a plurality of color light sources of the projector is determined according to the gray distributions of the colors. Therefore, the power consumption of the projector can be reduced. | 09-22-2011 |
20110128474 | REFLECTIVE LIQUID CRYSTAL PANEL - A reflective liquid crystal panel including a first substrate, a first alignment layer, a second substrate, a second alignment layer, a liquid crystal layer and a reflection layer is provided. The first alignment layer disposed on the first substrate has a first alignment direction. The second substrate is opposite to first substrate. The second alignment disposed on the second substrate has a second alignment direction, wherein an included angle between the first alignment direction and the second alignment direction is substantially between 68 degrees and 85 degrees. The liquid crystal layer is disposed between the first substrate and the second substrate. The first alignment layer and the second alignment layer align the liquid crystal so that the liquid crystal layer has a twisted angle, wherein the twisted angle and the included angle are substantially the same. The reflection layer is disposed between the second alignment layer and the second substrate. | 06-02-2011 |
20110097654 | COLOR FILTER AND MANUFACTURING METHOD THEREOF - A color filter including a substrate, a plurality of first single-layer filter units and a plurality of first multilayer filter units is provided. The substrate has a plurality of first regions and a plurality of second regions. The first single-layer filter units is disposed on the substrate and located in the first regions respectively. The first multilayer filter units is disposed on the substrate and located in the second regions respectively. A manufacturing method for a color filter is also provided. | 04-28-2011 |
20110089859 | CURRENT-TYPE DRIVER OF LIGHT EMITTING DEVICES - A current-type driver of light emitting devices is provided. The current-type driver includes a power conversion circuit, a feedback module, and a control module. The power conversion circuit modulates and generates an output voltage according to a feedback signal so as to sequentially drive a plurality of light emitting devices. The feedback module generates the feedback signal for the power conversion circuit according to the output voltage and an adjusting signal during a first period, wherein none of the light emitting devices is driven during the first period. The control module outputs the adjusting signal to the feedback module during the first period so as to allow the power conversion circuit to adjust the output voltage to a pre-drive voltage corresponding to the light emitting device which is to be driven next among the light emitting devices. | 04-21-2011 |
20110058132 | DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - A manufacturing method of a display device is provided. Firstly, an active device array substrate having an active surface is provided. Next, a first patterned photoresist layer is formed on the active surface. Then, a first alignment layer is obliquely vapor-deposited on the active surface and the first patterned photoresist layer, wherein the active surface comprises at least a first undeposited area located beside an edge of the first patterned photoresist layer. A first alignment unit is formed by removing the first patterned photoresist layer and a portion of the first alignment layer located thereon. A sealant is directly formed on the active surface of the active device array substrate and surrounds the first alignment unit. An opposite substrate having a light transmissive surface is provided. After that, the active device array substrate and the opposite substrate are assembled. A display device is also provided. | 03-10-2011 |
20100321282 | DISPLAY MODULE - A display module including a first circuit board, a display panel and at least a die is disclosed. The display panel is disposed on the first circuit board and electrically connected to the first circuit board through a bonding wire. The die is disposed on the first circuit board and electrically connected to the first circuit board. | 12-23-2010 |
20100295997 | AUTOMATIC WHITE BALANCE SYSTEM AND METHOD THEREOF - An automatic white balance (AWB) system including a luminaire, a light sensing unit, an analog-to-digital converter, a control unit and a driving circuit is provided. In the AWB system of a projection apparatus, the suitable AWB method is applied. The light sensing unit includes a light sensor and a light sensing circuit. The light sensor is coupled to the light sensing circuit for sensing intensity of the color lights emitted from the luminaire, no matter what colors the color lights emitted from the luminaire are. The white balance of the color lights in the AWB system of the projection apparatus is automatically achieved with the light sensor instead of the color sensors. Therefore, the cost of the projection apparatus with the AWB system is reduced. | 11-25-2010 |
20100295865 | DISPLAY METHOD AND COLOR SEQUENTIAL DISPLAY - A color sequential display and a display method using the same are provided. The color sequential display displays a frame in a frame period. The frame includes a plurality of sub-frames. The frame period includes a plurality of sub-frame periods corresponding to the sub-frames. In the display method, a first color light source is turned on according to a first duty cycle within a first sub-frame period for displaying a first sub-frame. Next, a second color light source is turned on according to a second duty cycle within a second sub-frame period for displaying a second sub-frame. Finally, the first color light source and the second color light source are respectively turned on according to a first modified duty cycle and a second modified duty cycle. The first modified duty cycle and the second modified duty cycle are proportioned to the first and the second duty cycles. | 11-25-2010 |
20100289734 | PIXEL CIRCUITRY OF DISPLAY DEVICE AND DISPLAY METHOD THEREOF - A pixel circuitry of a display device and a display method thereof are provided herein. The pixel circuitry includes a scan switch, a storage element, and a sampling circuitry. The scan switch has a first terminal coupled to a data line and configured to be asserted according to a scan signal. The storage element is coupled to a second terminal of the scan switch and configured to store a pixel voltage from the data line. The sampling circuitry is configured to sample the stored pixel voltage of the storage element and to obtain a reference voltage for the display device according to the sampled signal. By sampling the stored pixel voltage of the storage element, whether the pixel voltages with different polarities are symmetry can be detected for avoiding flickers. | 11-18-2010 |
20100252720 | LIGHT SENSING CIRCUIT AND METHOD THEREOF - A light detecting circuit and a light detecting method thereof are provided. The light detecting circuit includes a first resistor, a light sensor, a current source, and a first current mirror. The light sensor generates a corresponding photocurrent according to the illumination while being illuminated by the high brightness light beam. By dividing the photocurrent corresponding to the low brightness light beam from the photocurrent through the current source, the light detecting circuit can mainly detects the high brightness light beam, so that the detecting accuracy can be enhanced. Accordingly, when being applied to detect the high brightness light beam, the light detecting circuit can provide a sensing voltage in a wide enough range and a large enough sense scale, so that the sensing voltage is easy to be distinguished by the rear stage. | 10-07-2010 |
20100207863 | PIXEL CIRCUITRY FOR DISPLAY APPARATUS - A pixel circuitry for a display apparatus is provided herein. The pixel circuitry includes a first storage element, and a switching element composed of a plurality of switches. The first storage element has a first terminal receiving a pixel signal and a second terminal coupled to a first voltage. The first storage element is used for storing the pixel signal. The switching element includes a first switch and a second switch respectively conducted in response to a first signal and a second signal. Each of the first switch and the second switch has an input terminal coupled to a data line and an output terminal coupled to the first storage element. The cooperation of the first switch and the second switch has benefit of delivering the pixel signal without influence of body effect. | 08-19-2010 |
20100066767 | LCOS INTEGRATED CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A liquid crystal on silicon integrated circuit (LCOS IC) and electronic device using the same is provided. The electronic device comprises an LCOS IC, a processor and a cooler. The LCOS IC comprising a temperature sensor embedded in the LCOS IC for sensing a temperature and outputting a temperature sensing signal according to the temperature. The processor is coupled to the LCOS IC for receiving the temperature sensing signal and outputting a cooler control signal according to the temperature sensing signal. The cooler is coupled to the processor for receiving the cooler control signal and adjusting the cooler accordingly. | 03-18-2010 |
20100039603 | DISPLAY PANEL MODULE - An LCOS panel module including a substrate, a flexible printed circuit (FPC), an LCOS panel, and a face mask is provided. The substrate has an adhesive region on a surface thereof The FPC is disposed on the substrate and has an opening for exposing the adhesive region. The LCOS panel has a bottom surface and a top surface. The bottom surface of the LCOS panel is fixed on the adhesive region of the substrate exposed from the opening through an adhesive layer and is electrically connected to the FPC. The face mask used for framing the display region of the LCOS panel and sheltering from stray light is disposed on the LCOS panel and has a display opening. A display region of the top surface of the LCOS panel is exposed from the display opening of the face mask. | 02-18-2010 |
20100007591 | PIXEL UNIT FOR A DISPLAY DEVICE AND DRIVING METHOD THEREOF - A pixel unit and driving method thereof are disclosed. The pixel unit includes a switch, a storage element and a first multiplexer. The switch develops a charge transfer path according to a scan signal associated with a scan line. The storage element has a first electrode coupled to the switch and a second electrode coupled to a reference voltage for receiving a pixel voltage via the charge transfer path. The first multiplexer is coupled to the second electrode of the storage element for selectively providing the reference voltage with a default value and the reference voltage with a determined value to the second electrode of the storage element according to a modulating signal. The driving method enlarges the voltage range of the first electrode of the storage element for enhancing the contrast ratio of the display panel. | 01-14-2010 |
20100006877 | LIGHT-EMITTING DIODE PACKAGE - An LED package including a carrier, a LED chip, and a lens is provided. The LED chip is disposed on the carrier. The lens is disposed on the carrier and above the LED chip. A gap is formed between the LED chip and the lens. The lens has a first surface, a second surface, a protrusion, and at least one protruding ring. The first surface faces the LED chip. The second surface is opposite to the first surface. The protrusion is located at the first surface. The protruding ring is located at the first surface and surrounds the protrusion. | 01-14-2010 |
20100001943 | HEATING SYSTEM FOR DISPLAY PANEL AND DISPLAY PANEL USING THE SAME - A heating system for a display panel is provided herein, wherein the display panel has a display area. The heating system includes a sensor, a temperature controlling device, and a heating element. The sensor is used for sensing the temperature of the display panel. The temperature controlling device provides a control signal according to the temperature of the display panel. The heating element heats the display panel according to the control signal, and the heating element is a patterned circuitry disposed on a peripheral region of the display area. | 01-07-2010 |
20100001657 | System and Method for Driving LED with High Efficiency in Power Consumption - A system and method for driving a LED is disclosed. The system is switched in turn between a constant-current mode circuit and a constant-voltage mode circuit. Accordingly, the forward voltage of the LED could be maintained constant, and the efficiency in power consumption could be substantially increased. | 01-07-2010 |
20090268469 | ILLUMINATION UNIT FOR PROJECTION SYSTEMS - An illumination unit for emitting light along an optic axis for a projection system includes an LED die and a collimator lens. The collimator lens includes a central part and a peripheral part. The central part has a first light transmission surface and a second light transmission surface opposite to the first light transmission surface. The peripheral part which is around the central part has an inner refraction wall coupled to the first light transmission surface to form a hollow for situating the LED die, an outer reflection wall opposite to the inner refraction wall, and a refraction surface connecting to the second light transmission surface and the outer reflection wall. Both the central part and the peripheral part of the collimator lens are rotationally asymmetrical corresponding to the optic axis. | 10-29-2009 |
20090268166 | PROJECTION SYSTEM - A projection system including an illumination unit, a polarization conversion unit, a light valve, a projection lens, and a polarizing beam split (PBS) element is provided. The polarization conversion unit includes a V-shaped PBS element, a wave plate, and two reflective surfaces. The V-shaped PBS element includes a first PBS portion and a second PBS portion. The first PBS portion is adapted to be passed through by a first partial beam with a first polarization direction and reflect a second partial beam with a second polarization direction. The second PBS portion is adapted to be passed through by a third partial beam with the first polarization direction and reflect a fourth partial beam with the second polarization direction. The wave plate is disposed in the transmission paths of the first partial beam and the third partial beam. The reflective surfaces are located at opposite sides of the V-shaped PBS element. | 10-29-2009 |
20090268165 | OPTICAL ENGINE - An optical engine including a light source, a polarizing beam splitter (PBS), a multi-focus lens, and a light valve is provided. The light source is capable of emitting an illumination beam. The PBS is disposed on the light path of the illumination beam. The multi-focus lens is disposed on the light path of the illumination beam between the light source and the PBS, and has a plurality of refractive portions. The refractive portions have different effective focal lengths from one another. The PBS allows at least a part of the illumination beam with a first polarization direction to travel to the light valve. The light valve is capable of reflecting the part of the illumination beam and converting the part of the illumination beam into an image beam with a second polarization direction. The image beam from the light valve travels to the PBS. | 10-29-2009 |
20090267885 | PIXEL CIRCUITRY AND DRIVING METHOD THEREOF - A pixel circuitry for a display apparatus and a driving method thereof are provided. The pixel circuitry includes a storage element, a scan switch, a first control circuit and a second control circuit. The scan switch delivers a pixel signal to the storage element in response to a scan signal during a frame period. The storage element having a first terminal and a second terminal is used for storing the pixel signal. The first control circuit selectively provides a reference voltage to one of the first and the second terminals of the storage element. The second control circuit selectively connects a pixel electrode to one of the first and the second terminals of the storage element. Under the control of the first and the second control circuits, the polarity of the pixel signal stored in the storage element can be changed by adjusting two terminal voltages of the storage element. | 10-29-2009 |
20090267877 | LIQUID CRYSTAL ON SILICON PANEL - The LCoS panel includes a display region, an odd and an even data drivers, and a data-line testing unit. The display region includes a plurality of pixel cells formed at each intersection of a plurality of scan lines and a plurality of data lines. The data lines include a plurality of odd data lines coupled to a plurality of first data channels of the odd data driver, and the data lines include a plurality of even data lines coupled to a plurality of second data channels of the even data driver. The odd and the even data drivers are arranged in a first side of the display region. The data-line testing unit is arranged in a second side of the display region opposite to the first side for selectively outputting a data-line testing signal corresponding to one of the data lines according to a data-line selecting signal. | 10-29-2009 |
20090231503 | PIXEL DEVICE - A pixel device capable of composing a panel is provided herein. The pixel device includes a first switch, a first capacitor, and a second capacitor. The first switch delivers a pixel signal to a pixel electrode according to a control signal. The first capacitor has a first part of a first metal layer, a second metal layer, and a first dielectric coupled between the first part of the first metal layer and the second metal layer. The second capacitor has a first poly-silicon layer, an electrode layer, and a second dielectric coupled between the first poly-silicon layer and the electrode layer. The first and the second capacitors are parallel connected without increasing the area of the pixel and serve as a storage capacitor. Therefore, the pixel device can obtain more overall storage capacitance. | 09-17-2009 |
20090213448 | OPTICAL SYSTEM - An optical system, adapted for providing an image beam, including a light source, a beam splitting/combining device, and a light valve is provided. The light source provides an illumination beam. The beam splitting/combining device includes a first polarizing beam splitter (PBS), a second PBS, a quarter wave plate (QWP), and a reflector. The first PBS reflects a first illumination beam of the illumination beam from the light source and the second illumination beam from the light source passes through the first PBS. The second illumination beam from the first PBS passes through the second PBS and the QWP, reflected by the reflector, passes through the QWP, and reflected by the second PBS. The light valve converts the first illumination beam from the first PBS and the second illumination beam reflected by the second PBS into the image beam. | 08-27-2009 |
20090213315 | Liquid crystal on silicon display panel and electronic device using the same - A liquid crystal on silicon (LCOS) display panel and an electronic device using the same are provided. The LCOS display panel includes a silicon substrate, a transparent substrate, a color filter layer, an over-coating layer, an alignment layer, and a liquid crystal layer. The transparent substrate is opposite the silicon substrate. The color filter layer is on the silicon substrate and between the silicon substrate and the transparent substrate. The over-coating layer is on the color filter layer, and the alignment layer is on the over-coating layer. The liquid crystal layer is between the alignment layer and the transparent substrate. | 08-27-2009 |
20090213303 | DISPLAY APPARATUS AND DISPLAY SUBSTRATE THEREOF - In a display apparatus, a light source is used for emitting light and a display panel is used for displaying images. The display panel includes a display area having a plurality of display pixels, a dark ring surrounding the display area and having a plurality of black pixels. Wherein adjacent two of the black pixels have an opening there-between, and a light sensing unit being integrated into the substrate and disposed beneath the opening of the two adjacent black pixels. | 08-27-2009 |
20090213102 | BOOTING METHOD AND SHUTTING DOWN METHOD FOR IMAGE DISPLAY DEVICE - During booting of a display panel and a light source, low power supply for electronic circuits is provided to the display panel. Then, the display panel is set by R/W commands. Then, high power supply for liquid crystal transition is provided to the display panel. Then, the display panel is discharged for removing residual electronic charges. Then, the light source is turned on for emitting light to the display panel. On the contrary, during shut down, the light source is turned off and then the display panel is discharged. Then, application of high power supply is stopped. Then, the display panel is set by R/W commands. Then, application of low power supply is stopped. | 08-27-2009 |
20090213055 | DISPLAY DEVICE CAPABLE OF BRIGHTNESS ADJUSTMENT BY ADJUSTING GAMMA CURVE AND METHOD THEREOF - Provided is a display device capable of brightness adjustment by adjusting gamma curves thereof, without adjusting brightness of input video signals. The display device includes a memory unit, storing a plurality of gamma reference voltage value sets in accordance with a plurality of gamma curves; a microprocessor, for selecting one of the gamma reference voltage value sets stored in the memory unit; a gamma voltage generator, for generating a plurality of gamma reference voltages in response to the selected gamma reference voltage value set from the microprocessor; a data converter, for converting input video signals into video voltages in response to the gamma reference voltages provided from the gamma voltage generator; and a display panel, for displaying images in response to the video voltages from the data converter. | 08-27-2009 |
20090207098 | PORTABLE ELECTRONIC DEVICE AND DISPLAYING METHOD THEREOF - A portable electronic device capable of displaying high resolution image is provided. The portable electronic device includes: a processor for providing a first video signal and a second video signal, wherein the first video signal is for displaying control options for selection, and the second video signal is generated according to a selected one of the control options; a display panel for displaying a first image with the control options according to the first video signal; a frame rate converter (FRC) for converting the second video signal into a third video signal; and a projector, independent of said display panel, for projecting a second image according to the third video signal, wherein the second image being controlled by the control options displayed on the display panel. | 08-20-2009 |
20090207062 | GAMMA REFERENCE VOLTAGES GENERATING CIRCUIT - A gamma reference voltages generating circuit is disclosed in the present invention. The gamma reference voltages generating circuit comprises a voltage provider, a plurality of first digital-to-analog converters and a plurality of second digital-to-analog converters. The voltage provider generates a plurality of first supply voltages and a plurality of second supply voltages according to a first gamma reference voltage. The first digital-to-analog converters are electrically coupled to the first supply voltages for generating a plurality of second gamma reference voltages. The second digital-to-analog converters are electrically coupled to the second supply voltages for generating a plurality of third gamma reference voltages. | 08-20-2009 |
20090195739 | LIQUID CRYSTAL ON SILICON DISPLAY PANEL AND ELECTRONIC DEVICE USING THE SAME - A liquid crystal on silicon (LCOS) display panel and an electronic device using the same are provided. The electronic device comprises the LCOS display panel and a circuit board. The LCOS display panel comprises a silicon substrate, a transparent substrate and a liquid crystal layer. The transparent substrate has a base plate and a mask layer. The circuit board is electrically connected to the display panel. The transparent substrate is disposed opposite to the silicon substrate, and the liquid crystal layer is positioned between the silicon substrate and the transparent substrate. The base plate has a first surface and a second surface opposite to the first surface that faces the silicon substrate. The mask layer is disposed on the second surface and has at least one opening to form at least one light-transmitting region and one light-blocking region, and the light-transmitting region is a displaying region of the transparent substrate. | 08-06-2009 |
20090195736 | Liquid crystal on silicon display panel and electronic device using the same - A liquid crystal on silicon (LCOS) display panel and an electronic device using the same are provided. The electronic device comprises the LCOS display panel and a circuit board. The LCOS display panel comprises a silicon substrate, a transparent substrate and a liquid crystal layer. The transparent substrate has a base plate and a mask layer. The circuit board is electrically connected to the display panel. The transparent substrate is disposed opposite to the silicon substrate, and the liquid crystal layer is positioned between the silicon substrate and the transparent substrate. The mask layer is disposed on the base plate and has at least one opening to form at least one light-transmitting region and one light-blocking region, and the light-transmitting region is a displaying region of the transparent substrate. | 08-06-2009 |
20090190044 | Mini-projector and detachable signal connector thereof - A mini-projector and detachable signal connector thereof are provided. The mini-projector applied to an electronic device comprises a projecting main body and a detachable signal connector. The detachable signal connector has at least a connecting unit. The connecting unit is electrically connected to the electronic device and transmits an image signal from the electronic device to the projecting main body. | 07-30-2009 |
20090185128 | ACTIVE DEVICE ARRAY SUBSTRATE, COMMON ELECTRODE SUBSTRATE, AND REFLECTIVE TYPE LIQUID CRYSTAL PANEL - An active device array substrate including a substrate, a plurality of active devices, and a plurality of spacers is provided. The substrate has a first surface. The active devices are arranged in an array on the first surface. The spacers are disposed over the first surface. Each of the spacers has two side surfaces opposite to each other. A first normal vector of the first surface and a second normal vector of each of the side surfaces make an angle falling within a range from 40 degrees to 70 degrees. Each of the two second normal vectors points away from the first surface. The active device array substrate has a rubbing direction, and a rubbing vector along the rubbing direction and the two second normal vectors of the side surfaces are coplanar. A common electrode substrate and a reflective type liquid crystal panel are also provided. | 07-23-2009 |
20090184908 | DISPLAY DRIVING METHOD AND APPARATUS USING THE SAME - The present invention discloses a display driving method and apparatus using the same. The driving method of driving a display panel having pixel cells formed at each intersection of a plurality of scan lines and a plurality of data lines, said method comprising: simultaneously driving the pixel cells corresponding to the nth to (n+m)th scan lines according to a plurality of first pixel signals corresponding to the nth scan line; and simultaneously driving the pixel cells corresponding to the (n+1)th to (n+m+1)th scan lines according to a plurality of second pixel signals corresponding to the (n+1)th scan line wherein n is a positive integer and m is a positive integer. | 07-23-2009 |
20090161241 | COLOR FILTER ARRAY AND METHOD FOR DISPLAY THEREOF - A color filter array suitable for a display panel is provided. The color filter array includes a first pixel, a second pixel, a third pixel and a forth pixel. The first pixel is consisted of a green filter, a blue filter and a transparent filter. The second pixel is consisted of a red filter, a blue filter and a transparent filter. The third pixel is consisted of a red filter, a green filter and a transparent filter. The forth pixel is consisted of a red filter, a blue filter and a green filter. The architecture of the color filter array is able to increase the image brightness of the display panel. | 06-25-2009 |
20090135205 | DISPLAY METHOD FOR COLOR SEQUENTIAL DISPLAY - A display method for a color sequential display is disclosed. The display method includes following steps. First, a frame is displayed by four color signals of a red signal, a green signal, a blue signal and a compensation signal. Next, a frame period is divided into eight subframe periods according to a sequence. Next, three of the said four color signals are selected and arranged in a sequence. And then, the selected three color signals are respectively displayed at the first, the second and the third subframe periods according to the sequence and respectively displayed at the fourth, the fifth and the sixth subframe periods according to the same sequence. After that, the unselected color signal of the said four color signals is displayed at the seventh and the eighth subframe periods. | 05-28-2009 |
20090102867 | DISPLAY METHOD - A display method for a color sequential display to display a frame in a frame time is provided. The frame time includes a first sub-frame time and a second sub-frame time, and the frame includes a first sub-frame and a second sub-frame. The display method includes displaying the first sub-frame in the first sub-frame time which is divided into a first liquid crystal (LC) response time and a first optical display time. In addition, the second sub-frame is displayed in the second sub-frame time which is divided into a second LC response time and a second optical display time. The scales of the first sub-frame time and the second sub-frame time are different from each other according to a default value. The display method improves the optical performance of the color sequential display. | 04-23-2009 |
20090102864 | DRIVING METHOD FOR COLOR SEQUENTIAL DISPLAY - A driving method for color sequential display, for displaying a frame during a frame period, is provided. The frame period includes a plurality of sub-frame periods, and a compensation period is included between adjacent sub-frame periods. The driving method includes the following steps. During a plurality of sub-frame periods, a first color light, a second color light, and a third color light are used respectively as a light source of the color sequential display. A fourth color light is used as the light source of the color sequential display during a plurality of compensation periods. | 04-23-2009 |
20090102854 | DISPLAY METHOD AND COLOR SEQUENTIAL DISPLAY - A display method and a color sequential display using the same are provided. The color sequential display displays a frame in a frame period, wherein the frame includes a plurality of sub-frames, and the frame period includes a plurality of sub-frame periods. In the display method, a first sub-frame is displayed in response to a luminaire device during a first sub-frame period, and in simultaneous, a second sub-frame is addressed in the first sub-frame period. Next, the second sub-frame is displayed in response to the luminaire device during a second sub-frame period. In the display method, scales of the first sub-frame period and the second sub-frame period are determined according to the luminous efficiency of the luminaire device. Therefore, the optical performance of the color sequential display can be enhanced. | 04-23-2009 |
20090079457 | CONNECTION TESTING APPARATUS AND METHOD AND CHIP USING THE SAME - A connection testing apparatus, a connection testing method, and a chip using the same are provided. The method can be used for testing connections between chips, so as to solve the problems that a conventional multi-chip connection test needs a plenty of test patterns, resulting in a long test time and a high test cost, and the condition of a connection failure is hard to be analyzed after a test failure. In the present invention, a voltage variation caused when an ESD element in a chip is conducted and a comparison circuits are used to determine whether a connection is correct. Furthermore, the test apparatus is built in the chip, so that the connection test may be accomplished quickly and efficiently. Once a connection failure occurs, the failed connection pin can also be found, so as to be favorable for engineering analysis and thereby effectively saving the test cost. | 03-26-2009 |
20090059511 | DOCK STATION AND MINI-PROJECTOR BEING MUTUALLY INTEGRATED - A dock station and a mini-projector being mutually integrated is provided. The dock station includes a dock station body, a projector interface and a power management unit. The dock station body is employed for connecting at least an electronic apparatus. The projector interface is employed for connecting the mini-projector and the dock station body. The power management unit is disposed in the dock station body. The dock station uses the mini-projector to play AV data in the electronic apparatus. | 03-05-2009 |
20090040463 | Illumination system of LED for projection display - An illumination device and a projection system using the same are provided. The illumination device comprises a first light source module, a second light source module and a dichroic element. The first light source module comprises a first carrying board and a plurality of first light-emitting units disposed thereon for providing a first light beam. The second light source module comprises a second carrying board and a plurality of second and third light-emitting units disposed thereon for providing a second light beam. The dichroic element has a first side, a second side and a light output side. The first and the second light source modules are respectively optically aligned with the first side and the second side of the dichroic element, wherein the dichroic element provides a third light beam to the light output side by chromatically combining the first light beam and the second light beam. | 02-12-2009 |
20080309840 | PIXEL ELEMENT AND LIQUID CRYSTAL DISPLAY - A pixel element and a liquid crystal display with discharge function are disclosed. In each of the pixel elements of the liquid crystal display, a transistor is disposed between the common electrode and the pixel electrode. The transistor will be turned on by a discharge signal sent from the master control unit of the liquid crystal display when the liquid crystal display is turned on or turned off, so as to provide the same common voltage to both the common electrode and the pixel electrode. Therefore, the positive and negative charges accumulated in the common electrode and the pixel electrode can be removed and the liquid crystal display is well protected. | 12-18-2008 |
20080291374 | STRUCTURE OF A DISPLAY PANEL - Residual direct-current charges may be accumulated and distributed non-uniformly on the built-in color filters in a displaying panel such as the liquid-crystal-on-silicon displaying device, and thus results in the non-uniformity of the internal electric field that controls the arrangement of liquid crystal molecules. To reduce residual direct-current charges so as to cause the internal electric field to be substantially uniform, the present invention provides a structure of the display panel including a plurality of shields for respectively enclosing a plurality of color filters, wherein each shield is connected to a corresponding pixel electrode by a conductive wire. | 11-27-2008 |
20080291120 | HEAD-MOUNTED DISPLAY FOR ADJUSTING THE INTENSITY OF AMBIENT LIGHTS - A head-mounted display includes a body including an optical visualizing device. The optical visualizing device includes a displaying unit, a housing, a polarizing unit and a front cover. The displaying unit is adapted to display an image. The housing is adapted to accommodate the displaying unit and having a front surface. The polarizing unit is disposed in front of the displaying unit accommodated in the housing for adjusting the intensity of ambient lights that enter the displaying unit. The front cover is adapted to cover the front surface of the housing. The polarizing unit is controlled by the viewer to switch between see-through and non-see-through mode. | 11-27-2008 |
20080284701 | METHOD FOR DRIVING LIQUID CRYSTAL DISPLAY - A method for driving a liquid crystal display is provided. The method includes: turning on a display-enable switch to pass through time of liquid crystal response and light display of a first frame until a reset time appeared. At the same time, turn on a second write-enable switch to pre-deliver a pixel signal corresponding to a second frame to a second storage capacitor. During reset time of the first frame time, turn on a reset switch and provide a reset voltage signal to a pixel electrode while the first and the second display-enable switches and the first and the second write-enable switches are turned off, in which the reset voltage signal has a first voltage level during a first period, and a second voltage level in a second period. Therefore, the method can increase brightness of the display, and decrease image sticking effect thereof. | 11-20-2008 |
20080266531 | DISPLAY APPARATUS, ELECTRONIC APPARATUS, AND REFLECTIVE MIRROR MODULE - A display apparatus including a main body and a housing is provided. The main body includes a light source and a light modulator module. The light source is used for providing a beam. The light modulator module modulates the beam according to an electrical image signal. The housing includes a base, an upper cover, and a reflective mirror. The base has an opening for allowing the modulated beam to pass through. The upper cover is pivotally connected to the base. The reflective mirror is disposed on the upper cover. The modulated beam passing through the opening is suitable to be reflected by the reflective mirror. An electronic apparatus and a reflective mirror module are also provided. | 10-30-2008 |