Color Patents (Class 345/88)
  • Patent number: 9082357
    Abstract: Each image signal line S is connected alternately to a plurality of sub-pixels P positioned on one side of the image signal line S and a plurality of sub-pixels P positioned on the other side. During one frame period, image signals having either one of the positive and negative polarities are input to the first, third, fourth, and sixth image signal lines S1, S3, S4, and S6 of the eight image signal lines S1 to S8 that constitute a unit array of the image signal lines during one frame period, while image signals having the other polarity are input to the remaining image signal lines S2, S5, S7, and S8. According to this liquid crystal display device, it is possible to prevent flicker in image and to prevent the common electrode position from becoming different from the base potential, while preventing increase of power consumption.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 14, 2015
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO. LTD
    Inventors: Teruhisa Nakagawa, Yoshinori Aono, Masahiro Ishii
  • Patent number: 9070330
    Abstract: A display apparatus includes a display section including an array of pixels in a two-dimensional matrix, wherein each of the pixels of the display section includes a pair of a subpixel displaying a first primary color, and a subpixel displaying a second primary color being different from the first primary color.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: June 30, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventor: Masaya Tamaki
  • Patent number: 9064469
    Abstract: In a first subframe period, light sources of a first region and a third region emit lights at the same time; light sources of a second region and a fourth region emit no light at the same time, in which light emission of different colors is performed in the first region and the third region. In a second subframe period, light sources of the second region and the fourth region emit lights at the same time; light sources of the first region and the third region emit no light at the same time, in which light emission of different colors is performed in the second region and the fourth region. The first region and the third region are separated from each other with the second region interposed therebetween; and the second region and the fourth region are separated from each other with the third region interposed therebetween.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: June 23, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Shunpei Yamazaki
  • Patent number: 9053663
    Abstract: The present invention discloses an array substrate and a liquid crystal display panel. In the array substrate, each pixel unit has a first pixel area, a second pixel area, and a third pixel area. The voltage applied at the first pixel area is Va. The voltage applied at the second pixel area is Vb, and the voltage applied at the third pixel area is Vc, and the relationship among the voltages is Va>Vb>Vc. Ranges of area ratios of the first pixel area, the second pixel area and the third pixel area to the pixel unit are respectively 5%-25%, 20%-45% and 35%-75%. Therefore, it can reduce the color difference at the large viewing angle to obtain a better low color shift effect and improve the display quality.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: June 9, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Cheng-hung Chen, Zuomin Liao
  • Patent number: 9047840
    Abstract: Included are a display panel including first to third pixel regions and a driver circuit; a backlight portion divided into a first light source region where light is emitted in response to input of a video signal to the first pixel region, a second light source region where light is emitted in response to input of a video signal to the second pixel region, and a third light source region where light is emitted in response to input of a video signal to the third pixel region; a video signal selection circuit used to supply the video signals from plural memory circuits to the driver circuit; a control circuit that supplies a control signal for controlling the driver circuit; a sequence determination circuit that supplies a backlight control signal and a selection signal; and a random number generation circuit used for selection from colors in the sequence determination circuit.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: June 2, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Jun Koyama, Shunpei Yamazaki
  • Patent number: 9047818
    Abstract: An active matrix microdisplay system is provided. The microdisplay system includes an array of micro-emitters. The microdisplay system also includes an array of CMOS driving circuits. Each of the CMOS driving circuits is coupled to a respective micro-emitter for controlling current to each respective micro-emitter. Each driving circuit includes metal-oxide-semiconductor field-effect transistor (MOSFET) devices, where the MOSFET devices comprise p-type metal-oxide-semiconductors (PMOSs) or n-type metal-oxide-semiconductors (NMOSs).
    Type: Grant
    Filed: March 12, 2011
    Date of Patent: June 2, 2015
    Assignee: III-N Technology, Inc.
    Inventors: Jacob Day, Jing Li, Donald Lie, Zhaoyang Fan, Jingyu Lin, Hongxing Jiang
  • Patent number: 9046727
    Abstract: A thin film transistor (“TFT”) array panel includes; an insulation substrate, a TFT disposed on the insulation substrate and including a drain electrode, a passivation layer covering the TFT and including a contact portion disposed therein corresponding to the drain electrode, a partition comprising an organic material disposed on the passivation layer, and including a transverse portion, a longitudinal portion, and a contact portion disposed on the drain electrode, a color filter disposed on the passivation layer and disposed in a region defined by the partition, an organic capping layer disposed on the partition and the color filter, and a pixel electrode disposed on the organic capping layer, and connected to the drain electrode through the contact portion of the passivation layer and the contact portion of the partition, wherein a contact hole is formed in the organic capping layer corresponding to the contact portion of the passivation layer.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: June 2, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Ho Lee, Jang-Soo Kim, Hong-Suk Yoo, Sang-Soo Kim, Shi-Yul Kim, Jae-Hyoung Youn
  • Patent number: 9047825
    Abstract: A display device includes a calculation unit which calculates a required luminance according to a set luminance for each color of a backlight, for each of a first video signal and a second video signal, and obtains the higher of the required luminance corresponding to the first video signal and the required luminance corresponding to the second video signal as an objective luminance for each color based on a calculation result, a backlight driving unit which drives the backlight for each color according to the obtained objective luminance of each color, a detection unit which compares the required luminance with the objective luminance and detects, for each color, the required luminance corresponding to the video signal lower than the objective luminance, and a brightness adjustment unit which performs adjustment for each color so that an image corresponding to the video signal lower than the objective luminance is darkened.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: June 2, 2015
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui
  • Publication number: 20150145759
    Abstract: The present invention discloses an array substrate and a liquid crystal display panel. In the array substrate, each pixel unit has a first pixel area, a second pixel area, and a third pixel area. The voltage applied at the first pixel area is Va. The voltage applied at the second pixel area is Vb, and the voltage applied at the third pixel area is Vc, and the relationship among the voltages is Va>Vb>Vc. Ranges of area ratios of the first pixel area, the second pixel area and the third pixel area to the pixel unit are respectively 5%-25%, 20%-45% and 35%-75%. Therefore, it can reduce the color difference at the large viewing angle to obtain a better low color shift effect and improve the display quality.
    Type: Application
    Filed: October 23, 2013
    Publication date: May 28, 2015
    Inventors: Cheng-hung Chen, Zuomin Liao
  • Publication number: 20150145895
    Abstract: A display apparatus includes a display panel, an illumination part, an illumination controller, a luminance compensation part and a data driver. The display panel includes data lines, and is configured to display an image in a first direction. The illumination part is configured to emit illumination light having a first color in a second direction opposite to the first direction. The illumination controller is configured to control the illumination part and output an illumination signal corresponding to an intensity of the illumination light. The luminance compensation part is configured to compensate luminance of an input image data based on the illumination signal to output a data signal, and the data driver is configured to generate a data voltage based on the data signal, and output the data voltage to the data lines.
    Type: Application
    Filed: May 7, 2014
    Publication date: May 28, 2015
    Applicant: Samsung Display Co., LTD.
    Inventors: Byeong-Hee WON, Rang-Kyun MOK, Jong-In BAEK
  • Publication number: 20150138053
    Abstract: A system may produce images including narrow-bandwidth colors. One or more sets of the narrow-bandwidth colors may be selected to be interpreted as substantially a same color by a user. The system may include a light source configured to produce the narrow-bandwidth colors, and/or narrow-passband filters may create narrow-bandwidth colors from light emitted by broad-spectrum light sources or color sources. Spatial and/or time multiplexing may be used to create separate narrow-bandwidth colors interpreted as substantially a same color by the user. For example, the light source and/or the narrow-passband filter elements may be adjustable and may alternate between emission of two or more narrow-bandwidth colors. A viewing device may include filters allowing the user to selectively filter the narrow-bandwidth colors. The user may filter the narrow-bandwidth colors to separate a stereoscopic image pair, to view a user-specific image, to view desired content obfuscated by an obfuscating image, and/or the like.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Inventors: Erez Lieberman Aiden, Philip A. Eckhoff, William Gates, Peter L. Hagelstein, Roderick A. Hyde, Jordin T. Kare, Robert Langer, Eric C. Leuthardt, Nathan P. Myhrvold, Michael Schnall-Levin, Clarence T. Tegreene, Lowell L. Wood, JR.
  • Publication number: 20150138055
    Abstract: According to one embodiment, a display element includes a plurality of scanning lines and a plurality of signal lines. Into the plurality of signal lines, signals of different polarities are alternately input, respectively. In the respective regions surrounded by the scanning lines and the signal lines, a first pixel and a second pixel are arrayed. Along the scanning line, two each of the first pixels and the second pixels are provided, and the two first pixels or the two second pixels are arrayed so as to be juxtaposed to each other. Along the signal line, the first pixel and the second pixel are arrayed alternately.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Applicant: Japan Display Inc.
    Inventor: Masakatsu KITANI
  • Publication number: 20150138175
    Abstract: A system may produce images including narrow-bandwidth colors. One or more sets of the narrow-bandwidth colors may be selected to be interpreted as substantially a same color by a user. The system may include a light source configured to produce the narrow-bandwidth colors, and/or narrow-passband filters may create narrow-bandwidth colors from light emitted by broad-spectrum light sources or color sources. Spatial and/or time multiplexing may be used to create separate narrow-bandwidth colors interpreted as substantially a same color by the user. The light source and/or the narrow-passband filter elements may be adjustable and may alternate between emission of two or more narrow-bandwidth colors. A viewing device may include filters configured to selectively filter the narrow-bandwidth colors. The user may filter the narrow-bandwidth colors to separate a stereoscopic image pair, to view an image specific to a user, to view desired content obfuscated by an obfuscating image, and/or the like.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Inventors: Erez Lieberman Aiden, Philip A. Eckhoff, William Gates, Peter L. Hagelstein, Roderick A. Hyde, Jordin T. Kare, Robert Langer, Eric C. Leuthardt, Nathan P. Myhrvold, Michael Schnall-Levin, Clarence T. Tegreene, Lowell L. Wood, JR.
  • Publication number: 20150138054
    Abstract: According to one embodiment, a display element includes a plurality of scanning lines and a plurality of signal lines orthogonal to the plurality of scanning lines. A pixel of the display element includes sub-pixels of a plurality of colors to be respectively formed in the regions surrounded by the scanning lines and the signal lines. The size of a sub-pixel of a predetermined color among the plurality of colors is larger than the sizes of the sub-pixels of the other colors. Switching elements of the display element are connected to the scanning lines and the signal lines and drive the sub-pixels, respectively, and are formed into different shapes corresponding to the sub-pixels with different sizes.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 21, 2015
    Applicant: Japan Display Inc.
    Inventor: Masato Nakamura
  • Patent number: 9035979
    Abstract: Disclosed herein is a driving method for an image display apparatus which includes an image display panel having a plurality of pixels arrayed in a two-dimensional matrix and each configured from a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color, and a signal processing section. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, a third subpixel output signal, and a fourth subpixel output signal. The driving method includes a step of calculating a maximum value (Vmax(S)) of brightness, a saturation (S) and brightness (V(S)), and determining the expansion coefficient (?0).
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: May 19, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masaaki Kabe, Amane Higashi, Yasuo Takahashi, Akira Sakaigawa
  • Publication number: 20150130692
    Abstract: A semi-reflective display and a method for fabricating and assembling a semi-reflective display are presented, where the display may be comprised of visible light rectifying antenna arrays tuned to four different colors, which when forward biased may use electric power to amplify reflected colored light, and when reversed biased may generate electric power by absorbing light. TFT-tunnel diode logic may be used to control each sub-pixel.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Inventor: Laurence H. Cooke
  • Publication number: 20150130693
    Abstract: A backlight assembly having a light emitting module and a lower receiving container, the light emitting module including a first light source configured to generate a first light and a quantum dot rail configured to generate a second light from the first light the light emitting module is disposed under a display panel to provide the display panel with the second light, and the lower receiving container is configured to receive the light emitting module and the display panel6b
    Type: Application
    Filed: June 24, 2014
    Publication date: May 14, 2015
    Inventors: Hyun-Min Cho, Kwang-Keun Lee, Jong-Hyuk Kang, Jae-Byung Park, Baek-Hee Lee
  • Publication number: 20150124002
    Abstract: An automatic correction function determining apparatus includes an output unit and a determining unit. The output unit sequentially outputs a first display image and a second display image to a display. The first display image includes a target area being a colorimetric target and formed of a first image and a non-target area not being a colorimetric target and formed of a second image. The second display image includes the target area formed of the first image and the non-target area formed of a third image different in mean gradation value from the second image. The determining unit determines that an automatic correction function is active on the display, if a colorimetric measurement result of the target area in the first display image displayed on the display is different from a colorimetric measurement result of the target area in the second display image displayed on the display.
    Type: Application
    Filed: August 6, 2014
    Publication date: May 7, 2015
    Inventors: Kazuhiko HORIKAWA, Noriko SAKAI, Toshihiro IWAFUCHI
  • Patent number: 9024928
    Abstract: A system and method for producing an image having high dynamic range is described. The system comprises: a light source for providing light along an optical path; a digital micromirror device for directing portions of the light to off-state and on-state light paths, thereby producing an image; and a deformable optical element disposed in the optical path between the light source and the digital micromirror device for steering at least some of the light from the off-state light path to the on-state light path to increase dynamic range of the image produced by the digital micromirror device. The deformable optical element can comprise at least one steerable segment and at least one static element.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 5, 2015
    Assignee: Christie Digital Systems USA, Inc.
    Inventor: John Domm
  • Patent number: 9024852
    Abstract: An image displaying apparatus divides 1 frame into plural sub-frame periods, and modifies the image signals in which a region denoted by an image signal ? or an image signal close to the image signal ? and a region of another image signal ? or an image signal close to the image signal ? are adjacent to each other. The image displaying apparatus carries out display, in at least one sub-frames period A, with a modified image signal so that the difference with the image signal of the other region becomes smaller, and in at least one other sub-frames period B, with a modified image signal so that the difference with the image signal of the other region becomes more significant, in the vicinity of the boundary between the region of the image signal ? and the region of the image signal ?.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: May 5, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Tomoyuki Ishihara
  • Patent number: 9024978
    Abstract: Provided is a display device having plural data line voltage generation circuits capable of supplying a display control voltage to display elements of a color designated as necessary. The display device includes plural display elements each displaying an image of one color; plural gradation voltage output units provided for each color to output a gradation voltage corresponding to each display gradation value of a gradation number; plural display control voltage supply units connected to each of two or more display elements to supply control voltages corresponding to display data of the display elements to each of the display elements based on the gradation voltages of the gradation number output by any one of the gradation voltage output units; and plural gradation voltage selection units provided to one or each display control voltage supply unit to select the gradation voltage output by any one of the gradation voltage output units.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: May 5, 2015
    Assignees: Japan Display Inc., Canon Kabushiki Kaisha
    Inventors: Hiroko Sehata, Hajime Akimoto, Yoshihiro Kotani, Gou Yamamoto
  • Patent number: 9024934
    Abstract: A pixel capable of displaying an image with uniform brightness. The pixel includes an organic light emitting diode (OLED), a first transistor controlling an amount of current that flows from a second node coupled to a first power supply to a second power supply via the OLED to correspond to a voltage applied to a first node, a second transistor coupled between the first node and an initializing power supply, and a third transistor turned on to supply a predetermined voltage to the second node at the moment when the second transistor is turned on.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 5, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ok-Kyung Park, Dong-Hwi Kim
  • Publication number: 20150116378
    Abstract: A display device including a display panel driving unit configured to convert an image signal provided from an external device into a data signal such that an image is displayed on a display panel, and to output a first light control signal and a second light control signal. A backlight unit is configured to provide the display panel with a first color light and a second color light different from the first color light in response to the first light control signal and the second control signal. The display panel driving unit is further configured to determine a pulse width of each of the first light control signal and the second light control signal according to a color characteristic of the image signal.
    Type: Application
    Filed: April 9, 2014
    Publication date: April 30, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: HYUN MIN CHO, KWANGKEUN LEE, JAE BYUNG PARK, JAEHYUN CHO, SEON-TAE YOON, HYUNDEOK IM, SUNG-JIN HONG
  • Publication number: 20150116390
    Abstract: A display and methods of driving the display, where the display includes a plurality of pixels, where some colors are present in every pixel, and some colors are only present in less than all of the pixels.
    Type: Application
    Filed: January 9, 2015
    Publication date: April 30, 2015
    Inventors: Shmuel ROTH, Moshe Ben-Chorin, Doron Malka, Dan Eliav
  • Publication number: 20150116381
    Abstract: A display apparatus includes a display panel including a plurality of subpixels, where each subpixel includes one of a first color filter having a first primary color, a second color filter having a second primary color and a third color filter having a third primary color, and a light source part which provides light to the display panel, where the light source part includes a first light source which generates a first light having the first primary color and a second light source which generates a second light having a mixed color of the second primary color and the third primary color, where the first light source and the second light source are alternately in a turned-on state.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 30, 2015
    Inventors: Hyuk-Hwan KIM, Jae-Sul AN, Hyun-Jeong KIM, Seok-Hyun NAM
  • Patent number: 9019184
    Abstract: A liquid crystal display device includes a plurality of subpixels arranged in one column and n rows (where n is an even number ? four) within each pixel. In two of the pixels, which are adjacent to each other in the row direction, subpixels that represent the same color belong to the same row. If two of the pixels, which are adjacent to each other in the column direction, are called first and second pixels, respectively, a first half of the subpixels having a combination of first colors are located in odd-numbered rows in the first pixel and in even-numbered rows in the second pixel, while a second half of the subpixels having a combination of second colors, the second colors being different from the first colors, are located in even-numbered rows in the first pixel and in odd-numbered rows in the second pixel.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: April 28, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuki Yamashita, Akihiro Shohraku
  • Patent number: 9019318
    Abstract: This application is directed to driving methods for electrophoretic displays. The driving methods comprise grey level waveforms which greatly enhance the pictorial quality of images displayed. The driving method comprises: (a) applying waveform to drive each pixel to the full first color then to a color state of a desired level; or (b) applying waveform to drive each pixel to the full second color then to a color state of a desired level.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: April 28, 2015
    Assignee: E Ink California, LLC
    Inventors: Robert A. Sprague, Craig Lin, Tin Pham, Manasa Peri
  • Publication number: 20150109351
    Abstract: According to an aspect, a display device includes: an image display panel; and a planar light source including a light guide plate and an edge-lit light source, the light guide plate illuminating the image display panel from a back side, the edge-lit light source including a plurality of light sources arranged facing a plane of incidence; and a controller that controls luminance of each of the light sources independently. The controller stores therein, as lookup tables for the respective light sources, information on light intensity distributions of light that is incident on the light guide plate from the respective light sources and is emitted to a plane of the image display panel from the light guide plate, and controls a light quantity of each of the light sources based on information on an input signal of an image, and on the lookup tables.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 23, 2015
    Inventors: Tsutomu Harada, Naoyuki Takasaki, Susumu Kimura, Yasuhisa Shiraishi
  • Publication number: 20150109359
    Abstract: A display device includes: an image display unit in an image display region, the image display unit including a plurality of main pixels each including sub-pixels; a light source portion that irradiates the image display region; a signal correction unit that calculates saturation and value of the main pixels based on first color information to be displayed on a predetermined pixel, the first color information being obtained based on an input video signal, and generates second color information by correcting the first color information based on the calculated saturation and value; a signal generation unit that calculates the saturation and the value of the main pixels based on the second color information, and generates a signal for determining light source luminance of the light source based on the calculated saturation and value; and a light source control unit that controls luminance of the light source based on the signal.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 23, 2015
    Inventors: Fumitaka Gotoh, Tsutomu Harada, Naoyuki Takasaki
  • Publication number: 20150109347
    Abstract: A charge-sharing controlling method and a display panel are disclosed. The charge-sharing controlling method is suitable for the display panel including plural sub-pixels. The charge-sharing controlling method includes following steps: determining whether the display panel is displaying a primary color screen; if the display panel is displaying a primary color screen, prolonging an activated time of a charge-sharing circuit, which is coupled between any two of the sub-pixels displaying the same color, adjacent to each other and having opposite polarities.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 23, 2015
    Inventors: Chun-Kuei WEN, Yu-Ting HUANG, Hung-Min SHIH, Tian-Hua SU
  • Publication number: 20150109350
    Abstract: A display device includes: an image display unit that includes a plurality of main pixels in an image display region, the image display unit including sub-pixels; a light source that irradiates the image display region; a light source control unit that controls luminance of the light source; and a color information correction processing unit that corrects first color information that is obtained based on the luminance of the light source and an input video signal to second color information, when color information of at least one of a red pixel, a green pixel, and a blue pixel included in the first color information exceeds a predetermined threshold, the second information is corrected by degenerating color information of the red pixel, the green pixel, and the blue pixel, and by adding color information of the white pixel included in the first color information based on the degenerated color information.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 23, 2015
    Inventors: Fumitaka Gotoh, Tsutomu Harada, Masaaki Kabe, Tae Kurokawa, Kojiro Ikeda, Toshiyuki Nagatsuma, Akira Sakaigawa, Naoyuki Takasaki, Amane Higashi
  • Patent number: 9013382
    Abstract: A LCD device includes a liquid crystal panel and a control circuit. The liquid crystal panel is configured to display an image in response to various received signals, one of which may include a common voltage signal. The control circuit receives a control signal. In response to the control signal, the control circuit couples the liquid crystal panel to the common voltage signal or to a ground voltage.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: April 21, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Gun Woo Do
  • Patent number: 9013384
    Abstract: Systems, methods, and devices are provided to calibrate an electronic display to reduce or eliminate mura artifacts. Such mura artifacts may be due to differential behavior of multiple common voltage layers (VCOMs) of the display. One method for reducing or eliminating such muras may involve setting pixels of an electronic display to a gray level and setting an operating parameter of the liquid crystal display to a starting value. An image of the pixels may be captured. Using the image, an average luminance of the pixels may be determined and the image may be amplified around the average luminance to enhance contrast of the image. When the amplified image substantially does not indicates the presence of a mura, the value of the operating parameter may be stored in the electronic display.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 21, 2015
    Assignee: Apple Inc.
    Inventors: Ahmad Al-Dahle, David A. Stronks, Hopil Bae
  • Publication number: 20150103107
    Abstract: An image display device is capable of displaying an image, in which occurrence of color unevenness is suppressed. A method of driving the image display device is also disclosed. In an area above the dotted line, red light is transmitted in a first sub-frame period. In second and third sub-frame periods, light blocking data are respectively supplied as green data and blue data. Therefore, green light and blue light cannot be transmitted through the area. Hence, a red image with no color unevenness is displayed in the area. In contrast, in an area under the dotted line, the red light is transmitted in the first sub-frame period, and the green light is transmitted in the second sub-frame period. As a result, in a viewed image of the area, there is color unevenness where green is mixed to red.
    Type: Application
    Filed: April 10, 2013
    Publication date: April 16, 2015
    Inventor: Masamitsu Kobayashi
  • Patent number: 9007295
    Abstract: The present invention relates to a dynamic contrast ratio processing method and apparatus of a liquid crystal displaying apparatus.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: April 14, 2015
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Hyungdae Kim
  • Patent number: 9007549
    Abstract: A transparent liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a polarizing plate over an outer surface of the first substrate; first and second electrodes and a passivation layer between the first and second electrodes over an inner surface of the first substrate, the first electrode having a plate shape, the second electrode having a shape of bars; a third electrode over an inner surface of the second substrate; at least one color filter over an outer surface of the second substrate, the at least one color filter including a colored dichroic dye material; and a liquid crystal layer between the first and second substrate, the liquid crystal layer including a liquid crystal material and a black dichroic dye material.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: April 14, 2015
    Assignees: LG Display Co., Ltd., Dong-A University Research Foundation For Industy-Academy Cooperation
    Inventors: Jung-Min Choi, Kyoung-Ho Park, Gi-Dong Lee
  • Patent number: 9001014
    Abstract: An embodiment of the present invention provides a display including: a first substrate; gate lines and data lines defining a first color, second color, and third color pixel area; a first color, second color, and third color pixel transistor located in the first color, second color, and third color pixel area respectively; a second substrate; and a black matrix, wherein the black matrix has a first portion and a second portion, and the first portion extends from an edge of a first color pixel active layer for a first shading distance, the second portion extends from an edge of a third pixel active layer for a second shading distance larger than the first shading distance.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: April 7, 2015
    Assignee: InnoLux Corporation
    Inventors: Chia-Hao Tsai, Chih-Lung Lin
  • Publication number: 20150091952
    Abstract: An exemplary embodiment provides a sub-pixel driving system including a display panel, an image receiver, a control unit, an image-arrangement unit, and a driving unit. The display panel includes a plurality of pixels having a plurality of sub-pixels, wherein the display panel has a display characteristic. The image receiver receives a plurality of sub-pixel gradation signals. The control unit provides at least one driving parameter and determines a predetermined driving order, both according to the display characteristic. The image-arrangement unit arranges the sub-pixel gradation signals in a specific order according to the driving parameter. The driving unit drives the sub-pixels by the sub-pixel gradation signals that are arranged in the specific order according to the predetermined driving order.
    Type: Application
    Filed: September 22, 2014
    Publication date: April 2, 2015
    Inventors: Sin-Huei WU, Heng-Yin CHEN, Yi-Ming ZHU, Sheng-Po WANG
  • Publication number: 20150091955
    Abstract: 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: Application
    Filed: December 9, 2014
    Publication date: April 2, 2015
    Inventors: Kun-Cheng Tien, Yu-Ching Wu, Ming-Huei Wu, Tien-Lun Ting, Chien-Huang Liao, Wen-Hao Hsu
  • Patent number: 8994635
    Abstract: The invention provides an image display device capable of reducing the transmission delay of a scanning signal. A plurality of scanning signal lines are wired in one pixel circuit row. Pixel circuits of the pixel circuit row are connected to any of the plurality of scanning signal lines.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: March 31, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kenta Kajiyama, Takeshi Izumida, Norihiro Nakamura, Naoki Tokuda
  • Patent number: 8994618
    Abstract: Provided are a display device and an operating method thereof. The display device includes a display panel which includes a plurality of first, second, and third display pixels and a plurality of unit cells. The first, second, and third display pixels include a plurality of organic light emitting materials for displaying first, second, and third colors, respectively. Each of the unit cells includes one light sensing pixel adjacent to the first, second, and third display pixels.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sangmyeon Han, Jonghwa Park
  • Patent number: 8994760
    Abstract: The present invention provides a liquid crystal display device that appropriately compensates for a feed-through voltage.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: March 31, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kentaroh Irie, Masae Kawabata, Fumikazu Shimoshikiryoh
  • Patent number: 8994627
    Abstract: A liquid crystal display includes data lines extending in a first direction, gate lines extending in a second direction between a first side and a second side of the liquid crystal display and crossing the data lines, and common voltage lines crossing the data lines and parallel with the gate lines. The gate lines include even gate lines coupled to a gate driver at near the first side and odd gate lines coupled to the gate driver at near the second side. The common voltage lines include even common voltage lines coupled to a common voltage supplier at near the second side and odd common voltage lines coupled to the common voltage supplier at near the first side.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Minwoo Kim, Minhyung Kim
  • Patent number: 8988340
    Abstract: A display system, having an emissive body, emitting light in a way that is color temperature controllable. The light emission can be from zones. The emissive body can be a FIPEL type device with a first transparent conductive coating over a light emitting substrate. The zones are each separately controllable for color temperature.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: March 24, 2015
    Assignee: Vizio Inc.
    Inventors: Matthew McRae, William Pat Price, Ken Lowe
  • Patent number: 8988361
    Abstract: A writing apparatus includes: a voltage application unit that applies a voltage to a display medium whose display changes according to an irradiation of light and an applied voltage; an optical output unit that irradiates light toward the display medium; and a controller that (i) receives a position signal that has been output from an apparatus upon contact with an input device, the position signal indicating a position of the contact with the input device, (ii) specifies, based on the received position signal, a position on the display medium at which a display is to be changed, and (iii) controls the optical output unit so that light is irradiated toward the specified position on the display medium for a predetermined time period.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: March 24, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Haruo Harada, Taijyu Gan, Hiroshi Arisawa, Yasunori Okano, Chisato Urano, Takashi Morikawa, Atsushi Hirano
  • Patent number: 8982167
    Abstract: Methods and systems for displaying an image on a display, for example, a liquid crystal display (LCD) having more than three different colored filters. The display may include a plurality of sub-pixels, each of the sub-pixels being aligned with a filter having a color selected from a set of more than three different colors, none of which is white. A number of methods and systems for processing data for display are disclosed, for example, using data points from adjacent pixel groups, or data points for different colors within the same pixel data set.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: March 17, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Doron Malka, Moshe Ben-Chorin
  • Patent number: 8982287
    Abstract: Provided is a data processing apparatus including a correction circuit. In at least one embodiment, the data correction circuit acquires pixel data of a first pixel for display of a first color component and pixel data of a second pixel for display of a second color component, the second pixel being driven by a scanning signal line which drives the first pixel and being driven by a data signal line which is adjacent to the first pixel, and corrects the pixel data of the second pixel in accordance with a relationship between a value of the pixel data of the first pixel and a value of the pixel data of the second pixel. Thus, it is possible to cause a liquid crystal driving panel to perform uniform display without causing display unevenness even in a case where a halftone of a specific color component is uniformly displayed.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: March 17, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshikazu Tsuchiya, Masae Kawabata, Fumikazu Shimoshikiryoh
  • Publication number: 20150070404
    Abstract: A method for adjusting saturation degree and a color adjusting system are provided. The method for adjusting saturation degree includes the following steps. A hue circle is divided into a plurality of hue regions, and each of the hue regions is divided into a plurality of saturation regions according to at least one saturation threshold. A plurality of first input saturation degrees of a first saturation region of a first hue region of the hue regions are weighted by a first weighting formula for obtaining a plurality of first output saturation degrees. A plurality of second input saturation degrees of a second saturation region of the first hue region of the hue regions are weighted by a second weighting formula for obtaining a plurality of second output saturation degrees. The first weighting formula is different from the second weighting formula.
    Type: Application
    Filed: February 17, 2014
    Publication date: March 12, 2015
    Applicant: Au Optronics Corporation
    Inventors: Hui Chu Ke, Sheng-Wen Cheng
  • Publication number: 20150070406
    Abstract: A display apparatus includes: a panel including a plurality of pixels configured to display an image; an ambient light sensor configured to sense an illumination level of ambient light and to generate ambient light data; a gamma controller configured to control sections of a reference gamma curve based on the ambient light data to generate a controlled gamma curve, the controlled gamma curve defining output data according to input data; a data driver configured to convert an image signal into a data voltage based on the controlled gamma curve and to supply the data voltage to the pixels; and a gate driver configured to supply a gate signal to the pixels.
    Type: Application
    Filed: March 4, 2014
    Publication date: March 12, 2015
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yun-Ki Baek, Jung-Taek Kim, Yong-Jun Jang, Nam-Gon Choi, Joon-Chul Goh, Ah-Reum Kim
  • Publication number: 20150070256
    Abstract: An apparatus includes control logic and a scan driving unit. The control logic is configured to control driving of a display panel having an array of pixels divided into groups of pixels. Each group of pixies includes rows of pixels. The control logic is configured to control sequentially applying of multiple backlights having different colors to the array of pixels in multiple time periods. The scan driving unit is operatively coupled to the control logic and is configured to, in each time period, scan the rows of pixels of each group of pixels according to a row scanning sequence. For each group of pixels, in a first time period, the scan driving unit sequentially scans the rows of pixels according to a first row scanning sequence; in a second time period, the scan driving unit sequentially scans the rows of pixels according to a second row scanning sequence.
    Type: Application
    Filed: July 20, 2012
    Publication date: March 12, 2015
    Applicant: SHENZHEN YUNYINGGU TECHNOLOGY CO., LTD
    Inventors: Jing Gu, XIXI Lou