Spatial Processing (e.g., Patterns Or Subpixel Configuration) Patents (Class 345/694)
  • Publication number: 20130249974
    Abstract: Method of displaying an autostereoscopic image having N viewpoints in which at least one group of three successive screen rows having first, second, and third rows, the second row is identical to the first row, and for the third row, the spatial distribution of the three sub-pixels of the autostereoscopic image is offset relative to the second row by a pitch corresponding to one sub-pixel, the offsetting being in an elementary sequence AB, where A designates the fact that a row is identical to the preceding row, and B designates applying to a row of the image relative to the preceding row a said offset of the sub-pixels of the autostereoscopic image through a pitch corresponding to one sub-pixel.
    Type: Application
    Filed: November 30, 2012
    Publication date: September 26, 2013
    Applicant: ALIOSCOPY
    Inventor: Pierre Allio
  • Patent number: 8542228
    Abstract: In a liquid crystal display, a first data signal line and a second data signal line are provided for each pixel column. In at least one embodiment, in a case where every two pixels in the pixel column are paired, one of two pixels in each pair is connected with the first data signal line and the other of the two pixels is connected with the second data signal line, two scanning signal lines respectively connected with the two pixels are simultaneously selected during one horizontal scanning period so that signal potentials are written into the two pixels from the first data signal line and the second data signal line, respectively, during each horizontal scanning period, supply of the signal potentials to the first data signal line and the second data signal line is performed after supply of preliminary potentials to the first data signal line and the second data signal line.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: September 24, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshinori Sugihara, Atsushi Ban, Toshihide Tsubata
  • Publication number: 20130235095
    Abstract: 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: Application
    Filed: March 7, 2012
    Publication date: September 12, 2013
    Inventor: Ronald Steven Cok
  • Publication number: 20130235094
    Abstract: A display includes a substrate, a plurality of pixels located on the substrate, each pixel including only three light-emitting sub-pixels that each emit light of a different non-white color, the plurality of pixels including a first sub-set of first pixels and a second sub-set of second pixels, the second pixels having locations alternating with the first pixels, each of the first and second pixels including at least one first sub-pixel emitting light of a common first color, and the second pixels including at least one different sub-pixel emitting light of a different color that is not emitted by any sub-pixel of the first pixels, and wherein 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.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 12, 2013
    Inventor: Ronald Steven Cok
  • Patent number: 8531372
    Abstract: Embodiments of the present invention provide an apparatus, system, and method of reproducing a sequence of at least first and second color image frames by controllably activating an array of liquid crystal elements, the array including at least a first liquid crystal element to reproduce first and second sub-pixel values in the first and second frames, respectively. Some demonstrative embodiments may include estimating the first sub-pixel value based on a third sub-pixel value to be reproduced in the second frame by a second liquid crystal element of the array which is shifted in relation to the first liquid crystal element by a location shift value associated with the first liquid crystal element; and generating an overdrive signal for activating the first liquid crystal element based on a combination of the first and second sub-pixel values. Other embodiments are described and claimed.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: September 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ilan Ben-David
  • Patent number: 8531116
    Abstract: A light source driving apparatus for implementing general purpose driving of a high-current light emitting diode (LED) and a low-current LED, and a method for driving the same are disclosed. The apparatus for driving the light source includes a plurality of light emitting diode (LED) strings, and a light emitting diode (LED) driving circuit for driving the LED strings, and having a plurality of channels commonly connected to the same LED string.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: September 10, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Byung-Sam Min, Ja-Young Pyun
  • Publication number: 20130229447
    Abstract: Sticking of a Pixel is suppressed to improve the life of a display panel. In an emission display apparatus with a display panel in which a plurality of pixels each having at least one subpixel are disposed. A first display method of emitting light with only a pixel P(i,j) serving as an emission center and a second display method of allocating luminance of the pixel P(i,j) serving as an emission center to nearby pixels surrounding the pixel are combined in a controllable manner. A high-resolution mode with a high ratio of the first display method and a long-life mode with a high ratio of the second display method are switched therebetween depending on a spatial change or time change of image input data, an emission time, a degradation rate, a temperature, an emission luminance, and a display time.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 5, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Junichi Ihata, Koichi Fukuda
  • Publication number: 20130222442
    Abstract: An apparatus including a display and control logic is provided. In one example, the display includes an array of subpixels having a subpixel repeating group tiled across the display in a regular pattern. The subpixel repeating group comprises n rows of subpixels and n columns of subpixels. Each row of the subpixel repeating group comprises n types of subpixels. Each column of the subpixel repeating group comprises the n types of subpixels. Subpixels along each diagonal direction of the subpixel repeating group comprise at least two types of the n types of subpixels. The control logic is operatively coupled to the display and is configured to receive display data and render the display data into control signals for driving the array of subpixels of the display.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Inventors: Jing Gu, Keigo Hirakawa
  • Publication number: 20130215161
    Abstract: A liquid crystal display includes a liquid crystal display panel, a backlight unit including a plurality of light sources, the backlight unit providing light to a back surface of the liquid crystal display panel, a backlight driving circuit that individually drives a plurality of previously determined blocks each including the light sources based on a dimming value of each of the blocks, and a local dimming control circuit that calculates a pixel gain value compensating for a luminance reduction resulting from the dimming value of each block and corrects the pixel gain value based on a grayscale saturation level of each block.
    Type: Application
    Filed: March 22, 2013
    Publication date: August 22, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG DISPLAY CO., LTD.
  • Patent number: 8514211
    Abstract: A display panel includes a power line supplying power, and a plurality of pixels connected with the power line, each pixel including a plurality of sub-pixel regions, and receiving the power to display an image. Each of the pixels further includes a plurality of driving thin film transistors and a plurality of light emitting units. Each of the driving thin film transistors are positioned in respective sub-pixel regions to receive the power to output driving signals. Each of the light emitting units are connected to respective driving thin film transistors, have relatively longer lengths in a first direction, and have the same width in a second direction substantially perpendicular to the first direction. One among the plurality of light emitting units is longer than the remaining light emitting units to thereby improve a light emitting efficiency and image display quality of a display panel.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Hyuk Choi, Chun-Gi You, Jong-Hyun Park, Doo-Hyun Woo, Dong-Ki Lee, Young-Dong Kwon, Jin-Hee Kang
  • Publication number: 20130208031
    Abstract: A display screen of a computer is segmented into several portions, some of which are marked “used” and others which are marked “unused.” When the system is activated on the computer, the computer will decrease the luminance of unused portions of the display screen to save electricity.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 15, 2013
    Inventor: Diez Mario
  • Publication number: 20130208032
    Abstract: An organic light emitting display includes pixel circuits at crossing regions of scan lines, data lines, first emission control lines, and second emission control lines, a pattern detecting unit for detecting a specific pattern of an image to be displayed, an emission control line driver for supplying a first emission control signal to the first emission control lines, and for supplying a second emission control signal to the second emission control lines, and a timing controller for controlling the emission control line driver so that a supply order of the first and second emission control signals corresponds to whether the specific pattern is detected.
    Type: Application
    Filed: July 5, 2012
    Publication date: August 15, 2013
    Inventors: Hwan-Soo Jang, Jin-Tae Jeong
  • Patent number: 8508672
    Abstract: A system for, and method of, improving video image sharpness and a continuous-light-emitting video display system employing the system or the method. In one embodiment, the system for improving video image sharpness includes: (1) a sub-frame generator configured to receive a frame of a video image and generate plural sub-frames therefrom and (2) a spatial filter, associated with the sub-frame generator and configured to cause the plural sub-frames to be spatially filtered with respect to one another based on a display sequence thereof.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: August 13, 2013
    Assignee: Texas Instruments Incorporated
    Inventor: Andrew I. Russell
  • Patent number: 8508447
    Abstract: A pixel includes a primary element and a secondary element. At least a portion of the primary element is deformable between two positions. In one position, the light source is reflected such that the observer observes a dark pixel. In the other position, the light is reflected such that the observer observes a bright pixel. Gray levels of light are viewable by varying between the two positions.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: August 13, 2013
    Assignee: Microsoft Corporation
    Inventors: Anna Pyayt, Gary K. Starkweather, Michael J. Sinclair
  • Patent number: 8497828
    Abstract: A circuit and driving technique to improve the display resolution of an AMOLED display. Sharing of switch transistors between several sub-pixels in the display leads to improved manufacturing yield by minimizing the number of transistors used. The method also allows for conventional sequential scan driving to be used. The circuit includes a shared switch transistor connected between a voltage data line and a shared line that is connected to a reference voltage through a reference voltage transistor, a first pixel including a first light emitting device configured to be current driven by a first drive circuit connected to the shared line through a first storage device, a second pixel including a second light emitting device configured to be current driven by a second drive circuit connected to the shared line through a second storage device, and a reference current line configured to apply a bias current to the first and second drive circuits.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: July 30, 2013
    Assignee: Ignis Innovation Inc.
    Inventors: Gholamreza Chaji, Arokia Nathan
  • Patent number: 8493313
    Abstract: A process for reducing noise and temporal artifacts (e.g. walking LEDs) on a dual modulation display system by applying temporal filtering to rear modulation signals of a sequence of video frames. Flare and dimming rates are calculated for a current frame in the video. If a flare rate threshold is exceeded, an intensity of the backlight is limited to a predetermined flare rate. If a dimming rate threshold is exceeded, the backlight intensity is limited to a predetermined dimming rate. The limitations are applied, for example, on an element-by-element basis. In the event of a scene change, the limitations do not need to be applied. A forward modulation signal is calculated by taking into account any applied backlight limitations.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: July 23, 2013
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Gerwin Damberg, Helge Seetzen
  • Patent number: 8493420
    Abstract: A driving method for determining target transmittance of a liquid crystal sub-pixel is provided. The liquid crystal sub-pixel has display regions, the liquid crystal sub-pixel displays the target transmittance when liquid crystal voltage applied to each display region is equal to one other and transmittance variation of liquid crystal layer in the liquid crystal sub-pixel is S0 when variation of LC voltage ?VLC occurs. The driving method includes selecting LC voltages in accordance with the target transmittance and area ratio of each display region; and applying each LC voltage to one of the display regions correspondingly, wherein transmittance of each display region is different from the target transmittance, the target transmittance is equal to sum of product of area ratio and transmittance of each display region, and transmittance variation of the liquid crystal layer in the liquid crystal sub-pixel is lower than S0 when variation of LC voltage ?VLC occurs.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 23, 2013
    Assignee: Au Optronics Corporation
    Inventors: Yu-Chieh Chen, Chien-Huang Liao, Pin-Miao Liu
  • Patent number: 8482497
    Abstract: The invention provides a switch matrix and display matrix of a display device. The display matrix of a display device includes: a switch matrix including M×N MEMS switches, wherein M is the number of rows and N is the number of columns, and MEMS switches in each row are controlled by a corresponding row drive signal to output respective column data signals; and a pixel matrix including M×N pixel units each of which is coupled with a corresponding one of the M×N MEMS switches and displays in response to the column data signal output from the corresponding MEMS switch. The switch matrix can simplify pixel design and reduce layout area of each pixel. Moreover, conventional design needs special process to handle high voltage of source driver. This invention can realize a display device with one common process while source driver uses high voltage process conventionally.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: July 9, 2013
    Assignee: Jiangsu Lexvu Electronics Co., Ltd.
    Inventors: Lei Zhang, Herb He Huang
  • Patent number: 8482508
    Abstract: A LCD display device includes a LCD panel including a plurality of LCD units with trapezoid structure, and three sides of the LCD unit all include three liquid crystal molecules (LCM), the LCMs of all of the first side of the LCD unit constitute a first LCM array and form a first display interface, the LCMs of all of the second side constitute a second LCM array and form a second display interface, and the LCMs of all of the third side constitute a third LCM array and form a third display interface. The LCD display device also includes three signal conversion modules configured to convert three display signals into three control signals respectively, and three driving modules configured to drive the three LCM arrays according to the control signals and cause the first, the second, and the third display interface to display corresponding images.
    Type: Grant
    Filed: October 25, 2009
    Date of Patent: July 9, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Shih-Fang Wong, Xin Lu, Yu-Cui Zhou
  • Publication number: 20130169705
    Abstract: The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 4, 2013
    Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD
    Inventor: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD
  • Patent number: 8477160
    Abstract: An image display control device for controlling display of an image to a display device having a plurality of unit display elements in which three unit display elements corresponding to signals of three primary colors, respectively, are arranged in a delta form, includes an image data input unit which inputs image data, and an image drawing unit which draws an image on the basis of the input image data such that two of the three unit display elements are in a pair and constitute one pixel of the image and the remaining one unit display element constitutes one pixel of the image.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: July 2, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Yasuhiro Furuta
  • Patent number: 8477150
    Abstract: A display signal conversion apparatus converts a first signal having a first color format and color arrangement into a second signal having a second color format and color arrangement. The display signal conversion apparatus includes a color conversion unit configured to convert the first color format into the second color format, a pattern determination unit configured to determine a signal pattern of the first signal, a unit configured to determine a color arrangement of a pixel position of the second signal corresponding to a pixel position of the first signal, and a sub pixel signal generation unit configured to generate a sub pixel signal having the second color format and color arrangement based on a result of the signal pattern determination and a result of the color arrangement determination.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 2, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Tatsuki Inuzuka
  • Patent number: 8465159
    Abstract: A projector has a storage unit storing data on a plurality of different light emission patterns each occurring in a period based on a plurality of different-colored lights, wherein each light emission pattern corresponds to a respective one of a plurality of different projection conditions of a color image. An acquiring unit acquires a present projection condition of the color image, and a controller controls a light emission operation of the plurality of different-colored light emitting elements in the period in accordance with data on a light emission pattern corresponding to the present projection condition of the color image.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: June 18, 2013
    Assignee: Casio Computer Co., Ltd.
    Inventor: Masakuni Iwanaga
  • Publication number: 20130141480
    Abstract: A display system is disclosed. The display system comprises a display device; and a computing device. The computing device executes instructions to receive a first plurality of sub-pixel values of a first plurality of sub-pixels of an image. The first plurality of sub-pixels have a plurality of colors. The computing device further executes instructions to select a first sub-pixel of the first plurality of sub-pixels. The first sub-pixel has a first color and is spatially close to a second sub-pixel of the first plurality of sub-pixels. The second sub-pixel has the first color. The computing device further executes instructions to generate a second plurality of sub-pixel values of a second plurality of sub-pixels based on at least first and second sub-pixel values corresponding to the first and second sub-pixels of the first plurality of sub-pixels.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 6, 2013
    Inventors: CHEN-WEI LIN, King-Yuan Ho, Jing-Yi Yan
  • Publication number: 20130141481
    Abstract: Embodiments of the disclosed technology provide a display panel and a display device. The display panel comprises a plurality of pixels arranged in a matrix, wherein each of the pixels comprises a first sub-pixel region and a second sub-pixel region, the first sub-pixel region comprises one or more color sub-pixels, and the second sub-pixel region comprises one or more white sub-pixels. The display device according to the disclosed technology comprises the above display panel.
    Type: Application
    Filed: July 11, 2012
    Publication date: June 6, 2013
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kuanjun Peng, Kazuyoshi Nagayama, Jing Lv
  • Patent number: 8456395
    Abstract: A panel adjustment method is executed on a host to adjust settings of a panel connected to the host through a serial bus. The method determines whether the panel is supported by the host. When the panel is supported by the host, the settings of the panel is read from a database of the host to accordingly set the panel. It is further determined whether the panel is correctly set or not. When the panel is correctly set, it is further determined whether the panel is of a frame buffer mode or not. When the panel is of a frame buffer mode, it is determined whether a header file generation is required or not. When the header file generation is required, the settings and a panel name are included in an include file. The include file is compiled to thereby generate a binary file which is loaded into the panel.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: June 4, 2013
    Assignee: Sunplus Technology Co., Ltd.
    Inventor: Tsung-I Liu
  • Patent number: 8456496
    Abstract: Various embodiments of a sub-pixel octal grouping are disclosed. The octal grouping may comprise three-color (red, green and blue) sub-pixels with blue colored subpixel comprising twice the number of positions within the octal sub-pixel grouping as the red and green colored sub-pixels. Various embodiments for performing sub-pixel rendering on the sub-pixel groupings are disclosed.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: June 4, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Thomas Lloyd Credelle
  • Patent number: 8451302
    Abstract: A multi-primary-color display device includes a number of pixels, each of which includes a first subset including red, green and cyan subpixels and a second subset including blue and yellow subpixels. In each pixel, the subpixels included in the first subset are arranged in series in one direction, while the subpixels included in the second subset are arranged in series in the same direction as the subpixels of the first subset.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: May 28, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuichi Yoshida, Kazunari Tomizawa, Akiko Miyazaki
  • Patent number: 8451405
    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: Grant
    Filed: October 21, 2010
    Date of Patent: May 28, 2013
    Assignee: Genoa Color Technologies Ltd.
    Inventors: Shmuel Roth, Moshe Ben-Chorin, Doron Malka, Dan Eliav
  • Patent number: 8451288
    Abstract: The present invention relates to an image signal processing apparatus capable of reproducing the appearance of an image that is displayed on a PDP. In an image processing unit 1, as a process for an image signal so that an image obtained when the image signal is displayed on a display apparatus of a display type other than that of a PDP can look like an image displayed on a PDP display apparatus, at least one of reproducing color shift caused by a moving image which is produced because lighting of RGB is turned on in this order, reproducing a dither pattern to be applied in a space direction, reproducing a dither pattern to be applied in a time direction, reproducing a space between pixel pitches, and reproducing a stripe array is performed. The present invention can be applied to a case where, for example, an image that can look like an image displayed on a PDP is to be displayed on an LCD.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: May 28, 2013
    Assignee: Sony Corporation
    Inventors: Tetsujiro Kondo, Tomohiro Yasuoka
  • Patent number: 8446435
    Abstract: A display device has an improved white balance in white display and excellent display quality, and includes a plurality of pixels each including four sub-pixels More specifically, the display device includes a plurality of pixels each including: a sub-pixel pair of a red (R) sub-pixel and a green (G) sub-pixel; and a sub-pixel pair of a blue (B) sub-pixel and a green (G) sub-pixel, wherein in most of the pixels, a product of an aperture area per sub-pixel and a light amount per unit aperture area, in each of the red (R) sub-pixel and the blue (B) sub-pixel, is approximately two times that of the green (G) sub-pixel.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: May 21, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Kozo Nakamura
  • Patent number: 8446352
    Abstract: The present invention relates to an apparatus and method of converting data to display smooth and vivid images and to improve the gray scale use efficiency. The apparatus of converting data includes a gray scale detector that that generates a gray scale detection signal and a gray scale change signal by detecting a same gray scale, from an M bit input data, in a plurality of pixels adjacent to one another. The apparatus of converting data further includes a gray scale corrector that generates an N bit data by correcting one of the same gray scale according to the gray scale detection signal and the gray scale change signal output from the gray scale detector, wherein N and M are integers, N being larger than M.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: May 21, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Tae Ho You
  • Patent number: 8446439
    Abstract: An apparatus and method for performing BLOB analysis. BLOB analysis generally encompasses image processing techniques designed to classify data into BLOBs and calculate statistics for each BLOB.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: May 21, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Timothy J. Brothers, Ronald N. Prusia
  • Patent number: 8446438
    Abstract: Some demonstrative embodiments of the invention include methods, devices and/or systems to transfer data over serial signals, for example, a method of transferring over serial signals data representing an image to be reproduced, the method including generating a set of one or more data signals including image data received at an image data rate, and generating a transmission clock signal having a clock cycle during which the set of image data signals includes image data of more than one pixel of the image to be reproduced. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: May 21, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Nir Weiss
  • Patent number: 8432340
    Abstract: A liquid crystal display device includes a reflective display part and a transmissive display part in each of a plurality of matrix-arrayed pixels. The liquid crystal display device includes a liquid crystal display panel which is configured such that a liquid crystal layer is held between a pair of substrates and gradation display is performed in accordance with a pixel voltage which is applied to the liquid crystal layer of each pixel, a backlight which illuminates the liquid crystal display panel, a sensor unit which detects brightness of ambient light, and a voltage setting unit which sets the pixel voltage relative to each of input gradation levels, on the basis of the brightness that is detected by the sensor unit.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: April 30, 2013
    Assignee: Japan Display Central Inc.
    Inventors: Mitsutaka Okita, Kazuhiro Nishiyama, Shigesumi Araki, Emi Kisara
  • Publication number: 20130100182
    Abstract: A compensation method for privacy-image protection is provided. The compensation method operates a display device in a narrow visual-angle mode, then determines where is data to be displayed according to a relative position between the data to be displayed and a specific object, and finally determines to use which to adjust the data to be displayed according to the determined result, and displays the data.
    Type: Application
    Filed: May 15, 2012
    Publication date: April 25, 2013
    Applicant: AU OPTRONICS CORP.
    Inventors: Chao-Wei YEH, Chih-Hsiang Yang, Chien-Huang Liao, Wen-Hao Hsu
  • Patent number: 8423309
    Abstract: A method is provided for performing quality control on an organic light emitting diode (OLED) pixel comprising three sub-pixels formed in parallel. A method is provided for determining an weighted average current leakage for three sub-pixels of an OLED pixel. The method includes selecting a total luminance level, determining a first current flowing when a first sub-pixel is energized causing the OLED pixel to emit light having 1/3 total luminance. The method includes determining a second current flowing when the first sub-pixel and a second sub-pixel are energized causing the OLED pixel to emit light having a 213 total luminance. The method includes calculating weighted average current leakage by multiplying the first current times two forming a first product, subtracting the second current from the first product forming a result, multiplying the result by two forming a second product, and dividing the second product by nine. A computer-readable medium is provided.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: April 16, 2013
    Assignee: Emagin Corporation
    Inventors: Amalkumar P. Ghosh, Ilyas I. Khayrullin
  • Patent number: 8421812
    Abstract: An image processing apparatus sequentially provides a display device with a plurality of image output including a first image, a second image set to become at least a part of an image that is not correlated with the first image when luminance values of pixels of the first image are added to it, and a third image set to become an image, which is obtained by adding luminance values of pixels of all pluralities of images, higher spatial-frequency components than those of the first image. The image processing apparatus has an optical shutter control unit for controlling an optical shutter provided between the display device and a viewer to make the shutter be in a light transmission state while a part of or all the first image is displayed, and in a light interception state while other images are displayed.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: April 16, 2013
    Assignee: NEC Corporation
    Inventors: Daigo Miyasaka, Masao Imai
  • Publication number: 20130076808
    Abstract: The present invention involves in an LCD device, which comprises a scan driving module, a data driving module, pixels, data lines, shift register modules and scan lines, the scan lines include type 1 scan lines, each of which is connected with the scan driving module and the pixel for controlling charging time of the pixel according to a first scan signal and type 2 scan lines, each of which is connected with the shift register module and the pixel for controlling driving time for sub-pixels of the pixel. The present invention further involves in an LCD device driving method. The LCD device and the driving method of the present invention can realize reverse scanning without increasing device costs, thereby solving a technical problem that a current LCD device fails to maintain proper driving effects when utilizing reverse scan driving.
    Type: Application
    Filed: October 9, 2011
    Publication date: March 28, 2013
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xin Zhang
  • Patent number: 8405690
    Abstract: A technique for modulating light by an optically addressed, electric charge accumulating spatial light modulator achieves substantially monotonic gray scale response. Embodiments digitally modulate the voltage across a photoreceptive material included in the spatial light modulator. The digital modulation scheme entails illuminating the photoreceptor with a series of light pulses propagating from an LCoS, in which the durations of the light pulses and their positions in time combine to produce binary-weighted equivalent rms voltages on the photoreceptor. The light pulses originate from a light-emitting diode or other switchable light source, and the timing of the light pulses is controlled such that they are emitted only when the associated LCoS is in a stable state. Emitting light pulses while the LCoS is in a stable state avoids non-monotonic behavior.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: March 26, 2013
    Assignee: Compound Photonics Limited
    Inventors: Howard V. Goetz, James L. Sanford, Jonathan A. Sachs
  • Patent number: 8405692
    Abstract: A transflective display panel substantially comprises a plurality of a sub-pixel grouping substantially comprising a plurality of at least first and second color sub-pixels. The plurality of the sub-pixel grouping forms an array across said display panel in a plurality of rows and columns. The first color sub-pixel is a substantially dark color sub-pixel disposed in the plurality of the sub-pixel grouping across said display panel so as to form a substantially vertical line down said display. Each sub-pixel further comprises an optical via, and the optical vias are formed in non-uniform positions upon said dark color sub-pixels.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: March 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Candice Hellen Brown Elliott, Thomas Lloyd Credelle, MoonHwan Im
  • Publication number: 20130070007
    Abstract: An optical compensation method for an organic light emitting display device comprises: setting initial gain values of RGB subpixels; making each of the RGB subpixels converge on target luminance; selecting subpixels to emit light with the W subpixel from the RGB subpixels, and setting an initial gain value of the W subpixel; measuring color coordinates and luminance of the W subpixel to which the initial gain value is applied; calculating the luminance ratio of the W subpixel and the selected subpixels; adjusting maximum gains of the W subpixel and the selected subpixels; measuring maximum color coordinates and luminance ratio of the W subpixel and the selected subpixels; and making the W subpixel and the selected subpixels converge on target color coordinates and luminance.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 21, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventor: LG Display Co., Ltd.
  • Publication number: 20130070006
    Abstract: A first sub-pixel, a second sub-pixel and a third sub-pixel of a pixel are utilized to display a first white image, then a first brightness of the first sub-pixel and a first brightness of the second sub-pixel are measured. The first sub-pixel, the second sub-pixel and a fourth sub-pixel of the pixel are utilized to display a second white image, then a second brightness of the first sub-pixel and a second brightness of the second sub-pixel are measured. How image data should be displayed is determined according to whether the first brightness of the first sub-pixel is greater than the second brightness of the first sub-pixel, whether the first brightness of the second sub-pixel is greater than the second brightness of the second sub-pixel, and whether a chromaticity coordinate of the image data is within a chromaticity range capable of being displayed by the first, second and third sub-pixels.
    Type: Application
    Filed: May 31, 2012
    Publication date: March 21, 2013
    Inventors: Hsueh-Yen Yang, Yun-Hsiang Lee, Tze-Chien Tsai
  • Patent number: 8400480
    Abstract: Disclosed herein is a color display apparatus which has a pixel pattern including a plurality of repeating units of a pixel array, wherein each of the plurality of repeating units of the pixel array is composed of at least five sub-pixels while including at least one sub-pixel from a first to fourth sub-pixel, respectively, the first sub-pixel representing a red color (R), the second sub-pixel representing a green color (G), the third sub-pixel representing a blue color (B), and the fourth sub-pixel representing a mixed color of at least two colors from among the R, G, and B, and each of the plurality of repeating units of the pixel array corresponds to at least two image pixels.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun Tae Kim, Chang Yeong Kim, Du-Sik Park, Seung Sin Lee, Wonhee Choe, Joo Hyung Lee, Jong Woung Park
  • Publication number: 20130063573
    Abstract: Several embodiments of display systems are disclosed that comprise a backlight source, a first modulator, a second modulator and a controller. The backlight source may further comprise an edge-lit backlighting source that may be controlled to affect a field-sequential illumination for the dual or multiple modulator display system. In another embodiment, the display system may comprise two or more color primary emitters that each comprise a color gamut. When the color gamuts are driven in a field sequential pattern, the resulting overall gamut is substantially wider. Other display systems and methods are disclosed herein that affect a variety of 3D viewing embodiments.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 14, 2013
    Applicant: DOLBY LABORATORIES LICENSING CORPORATION
    Inventor: Gopal Erinjippurath
  • Patent number: 8390553
    Abstract: Systems, devices, and methods for reducing common voltage loading and/or enabling a simplified manner of polarity inversion in liquid crystal display (LCD) devices are provided. In accordance with one embodiment, a device may include a processor, a memory device, and a liquid crystal display having a pixel array including rows and columns of pixels. The pixels of each row of the pixel array may be configured to cause an approximately even amount of common voltage loading to be shared between one of a first plurality of common electrodes and one of a second plurality of common electrodes when the pixels of each row of the pixel array receive a scanning signal and a data signal.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: March 5, 2013
    Assignee: Apple Inc.
    Inventors: Shih Chang Chang, John Z. Zhong
  • Publication number: 20130050303
    Abstract: According to an embodiment, an image processing device includes a specifying unit configured to specify, from among a plurality of parallax images each having a mutually different parallax, a pixel area containing at least a single pixel; and a modifying unit configured to, depending on a positional relationship between each pixel in the pixel area specified from among the parallax images and a viewpoint position of a viewer, modify the pixel area into a modified pixel area that contains a pixel which is supposed to be viewed from the viewpoint position.
    Type: Application
    Filed: March 8, 2012
    Publication date: February 28, 2013
    Inventors: Nao MISHIMA, Kenichi Shimoyama, Takeshi Mita
  • Publication number: 20130050305
    Abstract: A drive circuit includes: a division section and an ON-OFF-period control section. The division section divides one frame period into a plurality of subfields, and divides each of one or more of the plurality of subfields to generate a plurality of division subfields. Each of the subfields corresponds to each bit of gray-scale data and has a period corresponding to a weight of the corresponding bit, and each of the one or more of the subfields has the period that is relatively long and is divided into periods each equal to the period of the subfield that is relatively short. The ON-OFF-period control section controls a ratio of an ON period or an OFF period to the one frame period, by turning on or off an electro-optical device of each pixel according to the bit corresponding to each of the subfields and each of the division subfields.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 28, 2013
    Applicant: Sony Corporation
    Inventor: Tomoro Yoshinaga
  • Publication number: 20130050304
    Abstract: A drive circuit includes: a division section that divides one frame period into a subfields, and divides each of one or more of the subfields to generate division subfields; a correction section that corrects, when bit arrays of the gray-scale data corresponding to respective two pixels next to each other are different from one another, the bit array of the gray-scale data corresponding to a first pixel of the two pixels to bring this bit array closer to the bit array of the gray-scale data corresponding to a second pixel of the two pixels, while maintaining gray-scale; and an ON-OFF-period control section that controls a ratio of an ON period or an OFF period to the one frame period, by turning on or off a liquid crystal cell of each of pixels according to the bit corresponding to each of the subfields and each of the division subfields.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 28, 2013
    Applicant: Sony Corporation
    Inventor: Tomoro Yoshinaga
  • Patent number: 8384747
    Abstract: An autostereoscopic display apparatus includes a plurality of colored individually addressable display elements (2) arranged in an array of rows and columns. A lenticular sheet (15) includes a plurality of light directing elements, for example lenticular elements (16). A color order of the individually addressable display elements (2) in the row direction (4) provides triplets (21; 23; 24) of adjacent individually addressable display elements (2), each individually addressable display element (2) of a triplet (21; 23; 24) being a respective one of the colors (R, G, B) of the display. The internal color order of the individually addressable display elements (2) within a triplet (21; 23; 24) is different for different triplets (21; 23; 24) in at least one of the row direction (4) and the column direction (6).
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: February 26, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Cornelis Van Berkel