Color Patents (Class 345/88)
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Publication number: 20150062194Abstract: A source driver pre-charging apparatus including a data detection module, a determining module, and a pre-charging module is disclosed. The data detection module captures a first most significant bit having N bits in a current data and a second most significant bit having N bits in a former data and compares them to generate a compared result. N is a positive integer larger than or equal to 2. The determining module judges whether any data is transited from a first grey-level region to a second grey-level region between the former data and the current data and at least one other grey-level region is existed between the first grey-level region and the second grey-level region. If the judgment result of the determining module is yes, the pre-charging module performs a pre-charging action on an output voltage of a source driver.Type: ApplicationFiled: August 26, 2014Publication date: March 5, 2015Inventors: Kai-Lan CHUANG, Chien-Ru CHEN
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Publication number: 20150062201Abstract: The present invention relates to a display device, including a display panel, a backlight module under the display panel and a driving circuit, wherein, a filter substrate of the display panel includes a plurality sets of filters each of which includes a red filter, a blue filter and a transparent filter; the backlight module includes a white backlight and a green backlight; and the driving circuit drives the white backlight to emit light and drives a red and blue pixels corresponding to the red and blue filters respectively to display at odd frames (or even frames), and drives the green backlight to emit light and drives a transparent pixel corresponding to the transparent filter to display at even frames (or odd frames). With the above technical solution, the Adobe RGB color coordinates can be met while a color of a mixed light can be adjusted and brightness can be enhanced.Type: ApplicationFiled: December 16, 2013Publication date: March 5, 2015Applicants: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Lifeng Lin, Hongming Zhan, Yongcan Wang
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Patent number: 8970459Abstract: In accordance with the teachings of the present disclosure, a method and system for the timing color of an image display are provided. In one embodiment, a method for displaying image includes sequentially illuminating a spatial light modulator with a plurality of colors by shining light through a color wheel having a plurality of adjacent color segments. The method further includes determining, a time period in which the output of the color wheel is deemed not to correspond solely to either of the two adjacent color segments for at least a portion of the spatial light modulator. The time period is based at least in part on the luminance difference between two adjacent color segments in the color wheel.Type: GrantFiled: December 29, 2006Date of Patent: March 3, 2015Assignee: Texas Instruments IncorporatedInventors: Kevin M. Chin, Gregory J. Hewlett
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Patent number: 8964012Abstract: A display panel and a display apparatus are provided. The display panel includes first and second substrates which are disposed opposite to each other and a liquid crystal layer formed in between; a color filter polarizing layer which is formed on one surface between the first and second substrates; and a polarizing layer. The color filter polarizing layer comprises a first metal linear grid arranged at different pitches to emit a first polarized component of incident light with different colors, and a second metal linear grid formed on an opposite surface of the one surface between the first and second substrates. The provided display panel and display apparatus, have reduced manufacturing costs and a simplified manufacturing process.Type: GrantFiled: August 12, 2011Date of Patent: February 24, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Seong-eun Chung, Dong-hwan Kim, Il-yong Jung
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Patent number: 8963819Abstract: A light-modulating or display apparatus employs electrowetting effect to controllably modulate, directly or indirectly, the shape or location of one or more measures of liquid. In one embodiment, at least one measure of liquid obstructs the passage of at least some portion of light passing onto, through or reflected off said apparatus, and thereby controllably modulating the angle of distribution, amplitude or intensity of light emitted or reflected by or passing through said apparatus. In another embodiment, light is propagating within a media due to the phenomenon of Total Internal Reflection, and one or more properties of light escaping from within said media through one or more adjacent measures of liquid is controllably modulated due to said change of shape or location of the measures of liquid.Type: GrantFiled: May 17, 2010Date of Patent: February 24, 2015Assignee: Intellectual Properties I Kft.Inventor: Richard V. Jessop
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Patent number: 8963895Abstract: A ubiquitously mountable image display system includes a shape-reconfigurable display screen component to which is attached a plurality of circuit modules each having at least one light source. The shape-reconfigurable display screen component is formed of a material that accommodates flexing of the display screen component without creating a perceivable aberration in separation distance between two or more picture elements of an image that is rendered upon a viewing plane of the display screen component when light from the plurality of light sources is directed towards the viewing plane.Type: GrantFiled: September 22, 2011Date of Patent: February 24, 2015Assignee: Nano Lumens Acquisition Inc.Inventors: Richard Cope, Aris Silzars
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Patent number: 8957845Abstract: An image processing unit (2 in FIG. 1) discards a high gray level side of input image data (RiGiBi) in accordance with a chroma coefficient (Csc), thereby to generate a signal of lowered chroma, and it expands the signal into output image data (RoGoBo) of full scale. Besides, the image processing unit (2) generates an image adjustment parameter (Th) and performs a control so as to reduce power of backlight (6), in interlocking with the full-scale expansion.Type: GrantFiled: June 27, 2013Date of Patent: February 17, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Norio Mamba, Naoki Takada, Yasuyuki Kudo, Tsutomu Furuhashi
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Publication number: 20150042691Abstract: A pixel driving method is adapted for a liquid crystal display. Each pixel includes a first sub-pixel and a second sub-pixel, in which the first sub-pixel and the second sub-pixel each includes a first display region and a second display region. The pixel driving method includes providing a first voltage to the first displaying region of the first sub-pixel and the second sub-pixel; providing a second voltage to the second displaying region of the first sub-pixel and a third voltage to the second displaying region of the second sub-pixel; and when the provided first voltage is larger than a predetermined voltage, providing the second voltage so that the provided second voltage is smaller than the provided third voltage.Type: ApplicationFiled: May 30, 2014Publication date: February 12, 2015Applicant: AU Optronics CorporationInventors: Shin-Mei GONG, Kun-Cheng TIEN, Ming-Huei WU, Jen-Yang CHUNG, Wei-Chun WEI, Chien-Huang LIAO
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Publication number: 20150042695Abstract: In a display element (10), first and second sub-picture elements share a first signal line (S(i)) in common, third and fourth sub-picture elements share a second signal line (S(i+1)) in common, fifth and sixth sub-picture elements share a third signal line (S(i+2)) in common, the first, third, and fifth sub-picture elements are provided on one sides of the corresponding signal lines, and the second, fourth, and sixth sub-picture elements are provided on the other sides of the corresponding signal lines, and respective switching elements of two sub-picture elements displaying a primary color with the highest luminance out of the first through sixth sub-picture elements when the first through sixth sub-picture elements display an achromatic color are connected with one of a first scanning line (Ga(j)) and a second scanning line (Gb(j)).Type: ApplicationFiled: March 21, 2013Publication date: February 12, 2015Inventors: Ryohki Itoh, Takaharu Yamada, Kazuyoshi Hamanaka
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Publication number: 20150042546Abstract: The present invention relates to a technology for outputting a gamma voltage in a source driver of a display device. A gamma voltage generation circuit of a source driver in accordance with the present invention may form wide high and low gamma voltage ranges even when a negative power supply voltage and a positive power supply voltage are asymmetrical to each other.Type: ApplicationFiled: October 23, 2014Publication date: February 12, 2015Inventors: Yong Sung AHN, Jung Min Choi
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Patent number: 8952876Abstract: A display substrate includes a base substrate, a first insulating layer formed on a base substrate, a pixel including a pixel electrode having the first insulating layer, and a circuit including a circuit transistor disposed on a peripheral area to drive the pixel. The pixel includes a first channel formed on the base substrate having the first insulating layer formed thereon. The first channel includes a poly-silicon layer, a first source electrode and a first drain electrode formed on the first channel that are spaced apart from each other, and a first gate electrode formed on the first source electrode and the first drain electrode corresponding to the first channel which is formed of the transparent conductive material. The poly-silicon layer is formed at a front channel portion of the first channel proximal to the first gate electrode through the first gate electrode.Type: GrantFiled: October 8, 2010Date of Patent: February 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hyung-Jun Kim, Sung-Haeng Cho, Yong-Mo Choi
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Publication number: 20150035867Abstract: A liquid crystal display device that includes: a light source unit comprising light-emitting diodes that belong to color coordinate ranks, according to variations in the color coordinates of white light emitted thereby; and a display panel comprising pixels configured to display an image by selectively emitting light received from the light-emitting diodes; and a color correction module configured to compensate a color coordinate of a white color gradation of the image, by controlling the display panel to adjust an intensity of light emitted from one or more of the pixels, according to the color coordinate ranks of corresponding light-emitting diodes that provide light to the pixels.Type: ApplicationFiled: February 12, 2014Publication date: February 5, 2015Applicant: Samsung Display Co., Ltd.Inventors: Dong-Min YEO, Gicherl KIM, Young-keun LEE
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Publication number: 20150035872Abstract: A device according to an embodiment includes an array substrate including electrodes corresponding to pixels arranged in a matrix, a color filter substrate opposed to the array substrate and including color filters corresponding to the pixels, a liquid crystal layer provided between the substrates, a backlight, and a controller which controls the substrates and the backlight. The pixels are configured to each have a parallelogrammatic shape elongated in a lateral direction, such that identical colors are arranged in the lateral direction, and different colors are arranged in a vertical direction. Pixels neighboring in the lateral direction are in line-symmetry with respect to a center line of the neighboring pixels. Liquid crystal molecules have negative dielectric constant anisotropy, and rotate horizontally relative to a substrate plane in a direction of the line-symmetry with respect to the center line when the voltage is applied to the electrodes of the neighboring pixels.Type: ApplicationFiled: October 17, 2014Publication date: February 5, 2015Applicant: TOPPAN PRINTING CO., LTD.Inventors: Yasuhiro SHIMA, Hisashi NAKADA, Kenzo FUKUYOSHI
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Publication number: 20150035738Abstract: In a color display device, when using white (W) sub-pixels in addition to subpixels of red (R) and green (G) plus blue (B) without increasing a wiring line number, the per-color pixel number in a unit area decreases so that the image resolution is deteriorated. The area and number of subpixels are adjusted in accordance with the visual sensitivity or luminosity required. Practically, the area of red (R) and blue (B) subpixels which are relatively low in luminosity is set to be about two times greater than the area of green (G) and white (W) subpixels that are relatively high in luminosity while letting the number of green (G) and white (W) subpixels be twice the number of red (R) and blue (B) subpixels. A larger subpixel is configured from a plurality of unit subpixels. A smaller subpixel is formed of a one unit subpixel.Type: ApplicationFiled: October 20, 2014Publication date: February 5, 2015Inventors: Shoichi HIROTA, Shinichi KOMURA, Yoshifumi SEKIGUCHI, Tsunenori YAMAMOTO, Masaya ADACHI
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Patent number: 8947476Abstract: A liquid crystal display device includes a liquid crystal display panel and a driving circuit that supplies display signals to a plurality of subpixels of the liquid crystal display panel. The plurality of subpixels are a red subpixel, a green subpixel, a blue subpixel, and a yellow subpixel. When achromatic colors of at least some gray levels among all gray levels are to be displayed by the pixel, display signals which are supplied to a first subpixel group composed of certain two subpixels are display signals of the same grayscale level, whereas display signals which are supplied to a second subpixel group composed of the other two subpixels are display signals of a different grayscale level from the grayscale level of the display signals supplied to the first subpixel group. The first subpixel group includes the yellow subpixel, and the second subpixel group includes the blue subpixel.Type: GrantFiled: January 6, 2011Date of Patent: February 3, 2015Assignee: Sharp Kabushiki KaishaInventors: Yuichi Yoshida, Kazunari Tomizawa, Tomohiko Mori
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Patent number: 8947472Abstract: A pixel array includes a first color pixel unit, a second color pixel unit and a third pixel unit, and the first, second and third pixel units respectively include a scan line, a data line, an active device electrically connected to the scan line and the data line and a first pixel electrode electrically connected to the active device. The first pixel electrode has at least one first slit, and a first acute angle is formed between an extending direction of the first slit and an extending direction of the scan line. Any two of the first acute angle of the first color pixel unit, the first acute angle of the second color pixel unit, and the first acute angle of the third color pixel unit are different.Type: GrantFiled: May 29, 2012Date of Patent: February 3, 2015Assignee: Au Optronics CorporationInventors: Kun-Cheng Tien, Yu-Ching Wu, Ming-Huei Wu, Tien-Lun Ting, Chien-Huang Liao, Wen-Hao Hsu
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Patent number: 8947384Abstract: The present disclosure relates to an LCD panel and a driving method thereof for realizing the embedded touchscreen function of such a LCD panel. The LCD panel according to the present disclosure comprises: an array substrate, a color filter substrate and a layer of liquid crystal provided between the two substrates, with gate lines and data lines are formed on the array substrate to define pixel units. An embedded touchscreen component is provided on the inner side of the array substrate, comprising: a first conductive line and a second conductive line. The first conductive line and the second conductive line constitute a two-layer structure, with a semiconductor layer being provided between the first conductive line and the second conductive line within the overlapping area of the two lines.Type: GrantFiled: May 22, 2012Date of Patent: February 3, 2015Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.Inventor: Dong Chen
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Patent number: 8947465Abstract: Embodiments of the present invention comprise systems, methods and devices for display-mode-dependent adjustment of image code values.Type: GrantFiled: December 2, 2005Date of Patent: February 3, 2015Assignee: Sharp Laboratories of America, Inc.Inventor: Louis Joseph Kerofsky
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Patent number: 8941575Abstract: According to one embodiment of the present invention, a timing controller for a display, includes a first unit, a second unit and a third unit. The first unit is configured to generate an image signal from a first input signal. The second unit is configured to generate a multitude of timing signals and a control signal from a multitude of second input signals, the control signal being generated after the multitude of timing signals are generated. The third unit is configured to generate a multitude of first signals from the multitude of timing signals after receipt of the control signal from the second unit. The image signal and the multitude of first signals are configured to drive the display when the timing controller is connected to the display.Type: GrantFiled: March 20, 2013Date of Patent: January 27, 2015Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.Inventors: Ling Shen, Yuan Li
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Publication number: 20150022563Abstract: A system and method are described for creation of a mosaic display system. A device is assigned an address which may be used to produce unique sequence of illumination which is based on a code determined by the address. A sequence of images of a number of devices may be used to determine a spatial location associated with a device address.Type: ApplicationFiled: July 16, 2014Publication date: January 22, 2015Inventor: Eugene M O'Donnell
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Publication number: 20150015470Abstract: An image projection apparatus configured to project an image on the projection surface includes a light modulation unit configured to modulate light from a light source unit, an image processing unit configured to generate an image signal to be input to the light modulation unit, disposed in the image projection apparatus and, a light intensity measuring unit configured to measure an intensity of part of the modulated by the light modulation unit, a light guide optical system configured to guide the part of the light to the light intensity measuring unit and another part of the light to the projection surface, and a correction unit configured to correct brightness of the image projected on the projection surface based on a video signal supplied to the image projection apparatus and a measurement result of the light intensity measuring unit.Type: ApplicationFiled: June 25, 2014Publication date: January 15, 2015Inventor: Takuma JIKO
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Publication number: 20150015592Abstract: To overcome issues generated due to the light-shield part in a display device which displays different images towards a plurality of viewpoints, and to provide a device for easily synthesizing images to be displayed on a display part. A display controller includes: an image memory which stores viewpoint image data for a plurality of viewpoints; a writing control device which writes the viewpoint image data inputted from outside to the image memory; a parameter storage device which stores parameters showing a positional relation between a lenticular lens and the display part; and a readout control device which reads out the viewpoint image data from the image memory according to a readout order obtained by applying the parameters to a repeating regulation that is determined based on layout of he sub-pixels, number of colors, and layout of the colors, and outputs it to the display module as synthesized image data.Type: ApplicationFiled: June 19, 2014Publication date: January 15, 2015Applicant: NLT TECHNOLOGIES, LTD.Inventors: Tetsushi SATOU, Kazunori MASUMURA, Koji SHIGEMURA, Shinichi UEHARA
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Publication number: 20150015469Abstract: The present invention provides a display panel and driving method thereof, and display device. The display panel includes an array substrate and a color filter substrate, disposed oppositely; the array substrate comprising a plurality of scan lines, disposed at intervals; a plurality of data line, disposed at intervals, and crossing over and isolated from the scan lines; and a plurality of pixel units, arranged in a matrix form, and driven by the scan lines and data lines; each of the pixel units further divided into at least two active areas; the color filter substrate includes at least two common electrodes, disposed correspondingly to the active areas, the at least two common electrodes applying common voltages independently. The present invention can eliminate the non-uniform luminance problem in display images and improve the display quality.Type: ApplicationFiled: July 9, 2013Publication date: January 15, 2015Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Chengcai Dong
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Patent number: 8933873Abstract: In a display apparatus provided with a backlight which includes a plurality of color components and emits light of a color of white or other colors and with a liquid crystal display section, RGB values for identifying a color of light which passes through the liquid crystal display section assuming that the backlight emits white light are calculated, first RGB values representing a transmittance of the liquid crystal display section are calculated based on the RGB values, and the liquid crystal display section is driven based on the first RGB values.Type: GrantFiled: June 22, 2012Date of Patent: January 13, 2015Assignee: Sharp Kabushiki KaishaInventor: Toshiyuki Gotoh
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Patent number: 8933972Abstract: A method and system for adjusting luminance in a display device including displaying an image with saturated colors, and adjusting luminance settings of sub-pixels so that a relative luminance ratio between full white color and any fully saturated color is within approximately 25 percent of a reference relative luminance ratio between the full white color and the same fully saturated color in an equivalent display device including red, green and blue sub-pixels.Type: GrantFiled: February 1, 2007Date of Patent: January 13, 2015Assignee: Google Technology Holdings LLCInventors: Robert D. Polak, Zhiming (Jim) Zhuang
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Publication number: 20150009247Abstract: A video system including a sequential color liquid crystal display with a panel of pixels arranged in rows and columns, including a mechanism that controls unit brightness levels on each pixel in the panel called grey levels, each grey level corresponding to a video information received at the input. The grey level controlled on a pixel is achieved with an analog voltage that varies monotonously depending on the row associated with the pixel and/or a color to be displayed.Type: ApplicationFiled: September 25, 2014Publication date: January 8, 2015Applicant: THALESInventors: Hugues LEBRUN, Thierry KRETZ
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Patent number: 8928704Abstract: An array substrate is disclosed. Data lines directly pass through the area where a secondary pixel electrode is located to input data signals to the secondary pixel electrode. First scanning lines, second scanning lines and switches are arranged between the adjacent pixels in an up-down direction. The area between the pixels is a dark area corresponding to an opaque area. Under a 3D display mode, a difference of the default voltages exists between a main pixel electrode and a secondary pixel electrode. In addition, a liquid crystal display is provided. By adopting the above design, the crosstalk and the color shift under the 3D display mode may be reduced. In addition, the reliability of the liquid crystal panel may be enhanced.Type: GrantFiled: October 25, 2012Date of Patent: January 6, 2015Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Cheng-hung Chen
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Patent number: 8928596Abstract: A display panel includes: a first substrate section formed on the front side of the display panel; a second substrate section which is opposed to the first substrate section; a plurality of pixel sections formed in a matrix form between the first and second substrate sections; and a plurality of sensor sections, each of the sensor sections having two electrodes, one electrode disposed with a electrode-to-electrode gap from the other between the first and second substrate sections, the electrode-to-electrode gap being removed as a result of the deformation of the first substrate section under pressure so that the one electrode is brought into contact with the other electrode, the sensor sections being provided between the first and second substrate sections with one of a plurality of electrode-to-electrode gap lengths respectively.Type: GrantFiled: October 1, 2009Date of Patent: January 6, 2015Assignee: Japan Display West Inc.Inventors: Shuji Hayashi, Tsutomu Tanaka, Takeo Koito, Hiroshi Muzuhashi, Yuko Yamauchi
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Patent number: 8928568Abstract: A pixel includes sub-pixels each of which includes a first display region, a second display region, a third display region, a first capacitor, and a second capacitor. The first capacitor connects the second display region with the third display region. The second capacitor connects the first display region to the third display region via a switch. When the switch is activated, the potential of the third display region is decreased via the second capacitor, the potential of the first display region is increased via the second capacitor, and the potential of the second display region is decreased via the first capacitor. A display panel and driving method in a display panel are also disclosed herein.Type: GrantFiled: April 13, 2012Date of Patent: January 6, 2015Assignee: AU Optronics CorporationInventors: Chia-Lun Chiang, Yu-Sheng Huang, Yan-Ciao Chen, Meng-Ju Tsai
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Patent number: 8928555Abstract: A display device can include a housing, a processor, and a display assembly. The processor can be arranged within the housing. The display assembly can be operably coupled to the processor and arranged within the housing. The display assembly can include a first display, a privacy filter, and a second display. The first display can output a first portion of the display. The second display can output a second portion of the display. The privacy filter and the first and second displays can be arranged such that the first portion of the display assembly is filtered by the privacy filter to be viewable in a first viewable arc. The second portion of the display assembly can be viewable in a second viewable arc that is different than the first viewable arc. The first and second displays can be LCD's.Type: GrantFiled: March 15, 2013Date of Patent: January 6, 2015Assignee: Google Inc.Inventors: Roy Want, Richard Carl Gossweiler, III, Colin Albright McDonough
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Publication number: 20150002553Abstract: A pixel array for use in a display device includes a plurality of data lines and a plurality of scan lines. The pixel array includes a plurality of sub-pixels electrically coupled to the data lines and the scan lines. Two of the sub-pixels with the same color are respectively electrically coupled to two adjacent scan lines, and two of the sub-pixels with the same color are electrically coupled to either side of the same data line.Type: ApplicationFiled: December 30, 2013Publication date: January 1, 2015Applicant: AU Optronics CorporationInventors: Meng-Sheng CHANG, Yu-Ting HUANG
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Publication number: 20150002561Abstract: The invention provides a pixel structure, including a plurality of pixel units; each pixel unit including: a first, second and third pixel areas, adjacently disposed. First pixel area includes first pixel electrode and first control switch. Second pixel area includes second pixel electrode and second control switch. Third pixel area includes third pixel electrode and third control switch. Third pixel electrode is connected to data signal sequentially through third and the second control switches. Third pixel electrode is connected to second pixel electrode through third control switch so as to make the voltage level at first pixel electrode different from voltage level at second pixel electrode when first control switch, second control switch and third control switch are all conductive.Type: ApplicationFiled: June 28, 2013Publication date: January 1, 2015Inventors: Xiaohui Yao, Je-hao Hsu
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Publication number: 20150002552Abstract: Systems and methods may provide for determining a mode of operation associated with a Red, Green, Blue, White (RGBW) display and controlling a yellow-to-white (Y/W) luminance ratio of the RGBW display based on the mode of operation. In one example, the Y/W luminance ratio is decreased if the RGBW display is in a low power mode and increased if the RGBW display is in a high color fidelity mode.Type: ApplicationFiled: June 28, 2013Publication date: January 1, 2015Inventor: Akihiro Takagi
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Publication number: 20140375706Abstract: A stereoscopic image display includes a display panel; a polarization control panel that is positioned on the display panel and controls the polarization direction of light incident from the display panel; a lens panel positioned on the polarization control panel and having a plurality of lens shaping portions; a first driver for driving the display panel; a second driver for supplying a driving voltage to the polarization control panel; a timing controller for controlling the first driver and the second driver; and a sensing unit that senses the driving voltage supplied to the polarization control panel and outputs a decision signal for deciding whether the sensed driving voltage is in normal condition or abnormal condition.Type: ApplicationFiled: December 13, 2013Publication date: December 25, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Changho Lee, Seungho Baek, Jooah Kim
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Publication number: 20140375697Abstract: Provided is a display device, including: a drive circuit for inputting input signals generated based on video signals corresponding to at least red, green, and blue input from an exterior thereof; and a substrate including a plurality of connection wiring lines and a plurality of signal lines formed thereon, the plurality of connection wiring lines being connected to the drive circuit, the plurality of signal lines being provided in a display region, to which output signals output from the drive circuit are input through the plurality of connection wiring lines. The plurality of connection wiring lines supplied with the output signals corresponding to the respective colors are formed in layers different from each other corresponding to the respective colors on the substrate.Type: ApplicationFiled: March 7, 2014Publication date: December 25, 2014Applicant: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Hidetaka HAKODA, Yuuta FUNAHASHI
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Publication number: 20140368560Abstract: Aspects of the invention can provide a display device, a display method, and a projection type display device that allow a characteristic of a display image such as brightness to be continuously changed. The display device can include a light source capable of emitting a plurality of different color lights and a white light, and an optical modulation device for modulating light corresponding to the lights emitted from the light source. The ratio of the period of emitting the white light relative to the total of the periods of emitting the lights from the light source can be variable.Type: ApplicationFiled: August 28, 2014Publication date: December 18, 2014Inventor: Hidehito IISAKA
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Patent number: 8913093Abstract: Disclosed is a liquid crystal display apparatus which improves uniformity in luminance of RGB pixels by asymmetrically designing RGB pixels, and to enhances display quality, the apparatus comprises a red pixel switching element that switches a driving signal of the red pixel; a green pixel for transmitting green-colored light; a green pixel switching element that switches a driving signal of the green pixel; a blue pixel for transmitting blue-colored light; and a blue pixel switching element that switches a driving signal of the blue pixel, wherein a switching element of at least one pixel having relatively low luminance among the red pixel, green pixel and blue pixel is formed in the pixel area having relatively high luminance.Type: GrantFiled: September 25, 2012Date of Patent: December 16, 2014Assignee: LG Display Co., Ltd.Inventors: JongSuk Shin, JongHyuck Lee, HoonSub Shin, HeeSung Woo, DaeHyun Kim, JiYun Jang, HyoSik Song, Junsung Kong, Ho-Jae Kim
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Patent number: 8913089Abstract: Embodiments of the present invention comprise systems, methods and devices for increasing the perceived brightness of an image. In some embodiments this increase compensates for a decrease in display light source illumination.Type: GrantFiled: June 15, 2005Date of Patent: December 16, 2014Assignee: Sharp Laboratories of America, Inc.Inventors: Louis Joseph Kerofsky, Scott James Daly
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Patent number: 8913094Abstract: A pixel includes four sub-pixels. The pixel is used to receive a plurality of signal values to display an image. The signal values are N-bit signal values, and the largest value of the signal values is (2N?1). The method of displaying the image with the pixel includes providing three color signals, generating four transformation signals corresponding to the four sub-pixels according to the values of the three color signals, and using four output signals to display the image of the pixel when the color saturation value is not larger than a first predetermined value and a fourth transformation signal of the four transformation signals is larger than other three transformation signals of the four transformation signals.Type: GrantFiled: December 14, 2012Date of Patent: December 16, 2014Assignee: AU Optronics Corp.Inventors: Hui Chu Ke, Sheng-Wen Cheng, Wei-Chieh Sun, Ming-Sheng Lai
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Patent number: 8907878Abstract: A liquid crystal display device has pixels containing first to fourth subpixels (“SPs”) having four different colors, respectively, arranged in a two-by-two matrix. In displaying a font on a pixel composed of three SPs having three different colors, respectively, arranged in three columns of stripes, the SP in the first column of stripes takes on a tone Tx, the SP in the second column of stripes takes on a tone Ty, and the SP in the third column of stripes takes on a tone Tz. Each of the first and fourth SPs takes on a tone which is obtained by performing rounding on (Tx×?)+(Ty×?)=p and that each of the second and third SPs takes on a tone which is obtained by performing rounding on (Ty×?)+(Tz×?)=v.Type: GrantFiled: April 13, 2011Date of Patent: December 9, 2014Assignee: Sharp Kabushiki KaishaInventor: Ken Inada
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Patent number: 8902261Abstract: 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.Type: GrantFiled: March 22, 2010Date of Patent: December 2, 2014Assignees: Himax Display, Inc., Himax Technologies LimitedInventors: Chia-Cheng Lai, Yao-Hung Lai, Chia-Chuan Lee
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Patent number: 8902153Abstract: A color display has continuous areas of a single color covering a plurality of sub-pixel electrodes. Each sub-pixel of a given color has sub-pixels of the same given color disposed along at least two of its adjacent edges. Each area of a single color may cover a 2×2 array of sub-pixel electrodes. The colors used may be red/green/blue/white (RGBW), red/green/blue/yellow (RGBY), or orange/lime/purple/white.Type: GrantFiled: February 23, 2011Date of Patent: December 2, 2014Assignee: E Ink CorporationInventors: Alain Bouchard, Thomas H. Whitesides, Michael D. Walls, Steven P. Dudek
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Patent number: 8902141Abstract: Disclosed herein is a display apparatus, including: a display pixel section including a plurality of pixels each including a plurality of subpixels arrayed in a two-dimensional lattice pattern; a plurality of pixel switches for individually driving the plural subpixels; and a plurality of scanning lines to each of which a pair of pixel switch groups each including a series of ones of the pixel switches arrayed along one of the two-dimensional directions of the pixel switches are connected; the pair of pixel switch groups being arranged in an opposing relationship to each other with the scanning line interposed.Type: GrantFiled: June 18, 2009Date of Patent: December 2, 2014Assignee: Japan Display, Inc.Inventors: Koji Noguchi, Yasuyuki Matsui, Masaaki Kabe, Akira Sakaigawa
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Patent number: 8902265Abstract: A method of controlling a display includes providing a plurality of pixels, each pixel including only three light-emitting sub-pixels. The plurality of pixels includes a first sub-set of first pixels and a second sub-set of second pixels having locations alternating with the first pixels. Each of the first and second pixels includes a first sub-pixel emitting light of a common first color. The second pixels include a different sub-pixel emitting light of a different color that is not emitted by the first pixels. The light emitted by the sub-pixels of the first pixels defines a full-color gamut and the light emitted by the sub-pixels of the second pixels defines less than a full-color gamut. A controller converts a received image signal to a display signal for controlling the light emitted by the sub-pixels with the display signal.Type: GrantFiled: March 7, 2012Date of Patent: December 2, 2014Assignee: Eastman Kodak CompanyInventor: Ronald Steven Cok
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Patent number: 8902149Abstract: Aspects of the present invention relate to methods and systems for controlling power consumption with a power controlling display device. Some aspects relate to a power controlling display device that receives a notification of a power control event that may control internal display components as well as connected power consuming devices. Some aspects relate to methods and systems for automatically compensating a displayed image when display backlight levels are modified in response to a power control event.Type: GrantFiled: January 7, 2010Date of Patent: December 2, 2014Assignee: Sharp Laboratories of America, Inc.Inventor: Louis Joseph Kerofsky
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Publication number: 20140347400Abstract: A display system, having an emissive body, varying light emitted from the surface in a way that each area becomes a pixel. The emissive body can be a FIPEL type device. Light can be both color varied and also color temperature controlled. The light color is changed by changing a frequency used to drive the body. Multiplexers can be used to reduce the number of generators needed.Type: ApplicationFiled: May 22, 2013Publication date: November 27, 2014Inventor: Matthew McRae
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Publication number: 20140347260Abstract: A display device includes a first sub-pixel formed by a blue-type-hue colored area included in a visible light region whose hue changes in accordance with wavelength, a second sub-pixel formed by a red-type-hue colored area included in the visible light region, a third sub-pixel and a fourth sub-pixel formed by colored areas of two types of hues included in the visible light region, the two types of hues being selected from a hue range of from a blue hue to a yellow hue, and a plurality of pixels regularly disposed horizontally and vertically and each including the first to fourth sub-pixels. At least two of the four sub-pixels have different areas, and two of the four sub-pixels having smaller areas among the four sub-pixels are disposed so as not to be adjacent to each other.Type: ApplicationFiled: August 11, 2014Publication date: November 27, 2014Inventors: Hidekuni MORIYA, Tsuyoshi MAEDA
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Patent number: 8896509Abstract: A liquid crystal display device includes: a liquid crystal panel including a pixel having red, green, blue and white sub-pixels; a mode selector selecting one from an RGB mode and an RGBW mode as a driving mode; an RGBW mode signal generating part performing a color correction on RGB input data corresponding to the pixel and converting the RGB input data into RGBW data in the RGBW mode; and an output controlling part outputting RGBW output data by performing a gamma conversion on the RGBW data in the RGBW mode and outputting the RGB input data and a W data for turning off the W sub-pixel as the RGBW output data in the RGB mode.Type: GrantFiled: October 7, 2010Date of Patent: November 25, 2014Assignee: LG Display Co., Ltd.Inventors: Cheung-Hwan An, Eui-Tae Kim
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Publication number: 20140340434Abstract: In the dynamic gamut display systems, video input data is processed to extract metrics indicative of the gamut occupancy of the frame pixels. The extracted metrics are used to form a set of scale factors to be used by the display to synthesize an adapted gamut that matches the frame pixel color gamut from the native color primaries of the display. The generated gamut adaptation scale factors are used to convert the frame pixels' values to the adapted gamut which are provided to the display for modulation using the synthesized adapted gamut for each video frame or a sub-region of a video frame. The methods enable increased display brightness, reduced power consumption and reduced interface and processing bandwidth. Also disclosed is an adapted video frame data formatting method that maps the benefits of the adapted gamut into a reduced frame data size enabling bandwidth savings when used for video distribution.Type: ApplicationFiled: August 5, 2014Publication date: November 20, 2014Inventors: Hussein S. El-Ghoroury, Andrew J. Lanzone
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Patent number: 8884857Abstract: A field-sequential display is operated in one of a color mode or a grayscale mode. In the color mode, a video source provides image content in the form of multiple-color image data having a frame rate of X Hz and a display controller uses the multiple-color image data to drive the field-sequential display so as provide multiple-color image content at the field-sequential display. In the grayscale mode, the display controller generates grayscale image data from the multiple-color image data and the display controller then drives the field-sequential display with the grayscale image data at a lower frame rate of Y Hz. While in the grayscale mode, the display controller can take advantage of the enhanced contrast provided by the grayscale image content to reduce or disable backlighting at the field-sequential display. The reduced timing requirements afforded by the lower frame rate, as well as the reduction or elimination of backlighting, can reduce power consumption compared to the color mode.Type: GrantFiled: June 14, 2013Date of Patent: November 11, 2014Assignee: Dell Products, LPInventors: Eugen Munteanu, Stefan Peana, John M. Knadler