Color Patents (Class 345/88)
  • Patent number: 9869894
    Abstract: A touch display panel comprises a color film substrate, which comprises a conducting layer arranged on a transparent substrate. The conducting layer comprises a plurality of first and second wires, and a color resistance insulating layer lying flat on the conducting layer, where the color resistance insulating layer includes first color resistances with via holes and second color resistances without via holes. The color film substrate also includes a plurality of bridges formed on the color resistance insulating layer, where at least one second color resistance has an extension portion extending in a direction substantially perpendicular to the second color resistances, where the extension portion isolates the conducting layer from the bridges between adjacent second color resistances.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: January 16, 2018
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Hao Chen, Huiping Chai, Jun Ma, Zhifu Li
  • Patent number: 9857651
    Abstract: The present invention propose an array substrate and a liquid crystal display device. The array substrate includes data lines and scan lines and a plurality of red, green and blue sub-pixels. The data lines and scan lines run across but not touching each other. The red, green and blue sub-pixels are lined in parallel along the data lines. Each sub-pixel connects corresponding scan line and data line via a thin film transistor. Each pixel area is installed with at least one sub-pixel, and scan lines forming two neighboring pixel areas are different. The two neighboring sub-pixels have opposite polarity, and sub-pixels lined horizontally along the scan lines have the same color. The present invention requires the fewer number of data lines, saving the cost of the array substrate. The present invention also saves the layout room on the array substrate, reduces non-transparent areas, and increases aperture ratio.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 2, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Mian Zeng
  • Patent number: 9851832
    Abstract: The present invention relates to the field of display, particularly to a display panel, a driving method thereof and a display device. The display panel comprises an array substrate provided with first electrodes and second electrode arranged in a same layer and a color filter substrate provided with third electrodes. The first electrodes and the second electrodes are alternately arranged in parallel at intervals and electrically isolated from each other. The second electrodes and the third electrodes are arranged correspondingly in space. The present invention has the following beneficial effects: by performing rectangular segmentation on the original plate-shaped common electrodes, the display panel ensures that common electrodes during display and driving electrodes during touch are electrically isolated from each other; in addition, as the diving electrodes are connected by redundant data lines, a display device comprising the display panel has a good image display effect and a higher touch sensitivity.
    Type: Grant
    Filed: September 1, 2014
    Date of Patent: December 26, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Shengji Yang, Xue Dong, Haisheng Wang, Lei Wang, Chunlei Wang, Yingming Liu, Xiaobo Xie
  • Patent number: 9823529
    Abstract: Provided are a liquid crystal panel and a display apparatus using a liquid crystal panel preventing uneven luminance while contributing a slimmed border of the display apparatus.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: November 21, 2017
    Assignee: Sakai Display Products Corporation
    Inventors: Akihiro Yamamoto, Takuya Ohishi
  • Patent number: 9818322
    Abstract: The present invention is directed to systems and methods to implement improved and more accurate measurements of the color display characteristics of a display device under analysis. Specifically, the apparatus and method of the present invention are configured to reduce the amount of off-axis light in such a way as to limit the impact of such light on the measurement of color values generated by the display device. The reduction is achieved by causing the display to emit a target radiation only the size and shape of the active area of the sensor.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: November 14, 2017
    Assignee: DATACOLOR HOLDING AG
    Inventors: Hong Wei, Colman F. Shannon
  • Patent number: 9799281
    Abstract: A liquid crystal panel and a driving method are disclosed. The method includes the following steps: receiving a picture information; analyzing and obtaining an original grayscale of each color of multiple pixel units; generating a first display grayscale and a second display grayscale according to the original grayscale of each color, wherein, a display brightness corresponding to the first display grayscale is greater than a display brightness corresponding to the second display grayscale; and using the first display grayscale and the second display grayscale of each color of the multiple pixel units to drive sub-pixel units which is corresponding to the each color in two adjacent pixel units corresponding to each pixel unit to respectively perform a dark display and a bright display. Through above way, the present invention can increase the transmittance of the liquid crystal panel.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: October 24, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Shui-chih Lien, Yu-yeh Chen, Jiang Zhu, Lei Sun, Dongsheng Guo
  • Patent number: 9792854
    Abstract: A display device includes a display area that includes sub-pixels arranged in a matrix having rows and columns, pixels formed of the combination of two sub-pixels, from which light of different wavelength regions is emitted, image signal lines arranged by two columns, scanning signal lines arranged by one in each row, pixel transistors disposed in the respective sub-pixels in which one image signal line is connected to a source of each pixel transistor, and the one scanning signal line is connected to a gate of the pixel transistor, light emitting elements that each emit light on the basis of a potential of a drain of the pixel transistor, and a drive circuit that applies a conduction potential for rendering the pixel transistors conductive to two scanning signal lines corresponding to two adjacent rows at the same time.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: October 17, 2017
    Assignee: Japan Display Inc.
    Inventors: Toshihiro Sato, Yuichi Numata
  • Patent number: 9786214
    Abstract: Disclosed is a pixel unit setting method for a liquid crystal panel. The liquid crystal panel includes a plurality of pixel units, each of which includes at least a blue sub pixel. The method includes dividing the blue sub pixel into a main pixel zone and a sub pixel zone with the area ratio therebetween being a:b; acquiring actual brightness levels of the blue sub pixel for each grey level at a normal view angle and an oblique view angle; setting a combination of grey levels to be fed to the main and sub pixel zones of one pixel unit so as to have the sum of differences between the actual and theoretical brightness levels at the normal and oblique view angles minimized so as to obtain the grey levels to be fed to the main and sub pixel zones for all the grey levels of the pixel unit.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: October 10, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Lixuan Chen, Chih-Tsung Kang
  • Patent number: 9779654
    Abstract: A method for image display is provided. The method includes: providing a data signal of an image, and the data signal comprising grayscale values R, G, and B; obtaining brightness values LR, LG, and LB which the grayscale values R, G, and B correspond to; transforming the brightness values LR, LG, and LB into brightness values LR?, LG?, and LB?; obtaining grayscale values R?, G?, and B? which the brightness values LR?, LG?, and LB? correspond to; obtaining a minimum value among the grayscale values R, G, and B as a white grayscale value W?; and supplying the red subpixel, the green subpixel, the blue subpixel, and the white subpixel with the grayscale value R?, G?, B?, and white grayscale value W?, respectively so that the image can be shown on the display panel. The present invention also proposes a display system utilizing the method.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 3, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Tao He, Jhen-wei He, Lei Sun
  • Patent number: 9755010
    Abstract: A pixel driver circuit having only three conductive layers is described. The pixel driver circuit comprises a vertical driver transistor (26) spanning said three conductive layers, wherein a first of said conductive layers (22) on a first side of a middle conductive layer (32) provides a first source-drain connection (52) of said driver transistor, wherein a third of said conductive layers (34) on the opposite side of said middle conductive layer to said first conductive layer provides a gate connection (54) for said vertical driver transistor, and wherein said middle conductive layer provides a second source-drain connection (50) for said vertical driver transistor. The circuit also comprises a lateral switching transistor (30) with source-drain connections (44,46) in one of said three conductive layers.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: September 5, 2017
    Assignee: FlexEnable Limited
    Inventors: Aleksandra Rankov, Charlotte Harrison, Ian Horne, Shane Norval, Jeremy Hills, Burag Yaglioglu
  • Patent number: 9754527
    Abstract: A flat display device includes a display panel. The display panel includes a unit pixel, the unit pixel having a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel. The flat display device further includes a panel driving unit to drive the flat panel in a first driving period and a second driving period in an alternating manner to display a white image on the unit pixel. The panel driving unit generates first white unit data, to enable two of the red, green, and blue sub-pixels and the white sub-pixel to be driven in the first driving period. The panel driving unit generates second white unit data, to enable three of the sub-pixels, which include the sub-pixel not driven in the first driving period, to be driven in the second driving period.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: September 5, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ki-Moon Jung, Chong-Hun Park
  • Patent number: 9741299
    Abstract: A display panel according to an embodiment includes a plurality of gate lines and a plurality of data lines disposed to cross each other and define a plurality of sub-pixel regions; and a plurality of sub-pixels disposed in the plurality of sub-pixel regions and configured to share one of the data lines adjacent thereto. The sub-pixels sharing the same data line are arranged in a shape of zigzagging along a vertical direction by four sub-pixels.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 22, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Byung Hyun Lee, Dong Su Shin, Chi Youl Lee
  • Patent number: 9741296
    Abstract: According to one embodiment, three columns of a first and second columns of first and second color pixels, and a third column of third and fourth color pixels arranged alternately, are repeatedly provided along a first direction. The first set of a first, a second and a third color pixels along the first direction, and the second set of a first, a second and a fourth color pixels along the first direction are each defined as a composite color unit pixel. Pixel signals are supplied to the pixels of the third columns in a pattern that polarities of the pixel signals of the pixels of the third columns along the first direction are . . . , +, +, ?, ?, +, +, ?, ?, +, +, ?, ?, . . . .
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: August 22, 2017
    Assignee: Japan Display Inc.
    Inventors: Hideyuki Takahashi, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
  • Patent number: 9735207
    Abstract: A display substrate and a driving method thereof, and a display apparatus are provide. The display substrate includes an array of a plurality of sub-pixels having at least two colors, wherein the sub-pixels of each color constitute a plurality of sub-pixel sets, each of the sub-pixel sets includes at least two sub-pixels of the same color and arranged adjacently in a first direction, and sub-pixel sets of different colors are arranged alternately in the first direction. The display substrate may be applied to display devices, particularly to organic light emitting diode display devices using different organic light emitting layer materials for different sub-pixels.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: August 15, 2017
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Junsheng Chen
  • Patent number: 9726945
    Abstract: The implementation of a superhigh-definition liquid crystal display device with a diagonal of 30 inches or more and a resolution of 100 ppi or more is facilitated. There is provided a direct-view-type liquid crystal display device that includes a display portion in which a plurality of pixels are placed in a matrix, the display portion whose diagonal is 30 inches or more, in which the resolution of the display portion is 100 pixels or more per inch, the plurality of pixels include first to fourth pixels, and one of the first to fourth pixels is an RG-type formed of a red subpixel and a green subpixel and another of the first to fourth pixels is a BH-type formed of a blue subpixel and a green, yellow, or white subpixel.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: August 8, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Makoto Shiomi
  • Patent number: 9723244
    Abstract: An LED driver IC for driving external strings of LEDs includes a prefix register and a data register connected in series with each other and with the prefix and data registers in other driver ICs. The prefix and data registers of the driver ICs are connected in a daisy chain arrangement with an interface IC. The interface IC loads data identifying a functional latch into the prefix register and data defining a functional condition into the data register of each driver IC. The data in the data register is then transferred to the functional latch to control the functional condition within the LED driver IC.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 1, 2017
    Assignee: ADVANCED ANALOGIC TECHNOLOGIES INCORPORATED
    Inventors: Richard K. Williams, Kevin Peter D'Angelo, David Alan Brown
  • Patent number: 9721996
    Abstract: A display device includes a display unit in which pixels are arranged in a matrix. The pixels each include a first sub-pixel having the largest area among sub-pixels, a second sub-pixel adjacent to the first sub-pixel and having an area smaller than that of the first sub-pixel, and a third sub-pixel adjacent to the first and second sub-pixels, having an area smaller than that of the first sub-pixel, and arranged in the same column as that of second sub-pixels. First, second, and third pixels are aligned in at least one of a column direction or a row direction and each include the first, second, and third sub-pixels that can display different one of first, second, and third colors. Areas of the first, second, and third colors displayable by the first, second, and third pixels in total are equal to one another.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: August 1, 2017
    Assignee: Japan Display Inc.
    Inventors: Masaaki Kabe, Hidemasa Yamaguchi, Kojiro Ikeda, Akira Sakaigawa
  • Patent number: 9715861
    Abstract: A display device includes a display panel including gate lines which extends in a first direction, data lines which extends in a second direction, and sub-pixels connected to corresponding gate and data lines, a gate driver configured to drive the gate lines, a data driver configured to apply a gray-scale voltage to the data lines, and a timing controller configured to generate and apply control signals to the gate and data drivers, where a unit pixel of the display panel is defined by an even number of adjacent sub-pixels among the sub-pixels, each of the data lines is connected to corresponding sub-pixels of the sub-pixels, the data driver inverts a polarity of the gray-scale voltage every two data lines, and two adjacent sub-pixels in the unit pixel are applied with the gray-scale voltages having different polarities.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: July 25, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Jinpil Kim, Jai-Hyun Koh, Namjae Lim, Ik Soo Lee, Heendol Kim, Se Ah Kwon, Kisoo Park, Jonghak Hwang
  • Patent number: 9715154
    Abstract: A liquid crystal display including a first substrate, a gate line disposed on the first substrate, a gate insulating layer disposed on the gate line, a data line disposed on the gate insulating layer, a first passivation layer disposed on the data line, a color filter disposed on the first passivation layer, a second passivation layer disposed on the color filter, and a pixel electrode and a shielding electrode disposed on the passivation layer. The shielding electrode includes a lower layer formed at a same layer as that of the pixel electrode and an upper layer formed on the lower layer by using an opaque metal layer.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: July 25, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Kil Park, Swae-Hyun Kim, Chang II Tae
  • Patent number: 9709869
    Abstract: An electro-optic system is provided that includes a front element having first and second surfaces, a rear element including third and fourth surfaces, wherein the front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, and an electro-optic medium contained in the chamber, and the electro-optic medium is adapted to be in at least a high transmittance state and a low transmittance state.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: July 18, 2017
    Assignee: GENTEX CORPORATION
    Inventors: Kelvin L. Baumann, John A. VanderPloeg, David A. Theiste, Thomas F. Guarr, Henry A. Luten, George A. Neuman, John S. Anderson
  • Patent number: 9703107
    Abstract: A three-dimensional display device of a parallax barrier system including a liquid crystal display device of an IPS system having a TFT substrate and an opposed substrate as well as a liquid crystal barrier panel of a TN system having a first substrate and a second substrate, in which the opposed substrate of the liquid crystal display device and the second substrate of the liquid crystal barrier panel are opposedly arranged by interposing a polarizer, the TFT substrate includes a pixel configured by a common electrode having a slit above a pixel electrode configured in a planar shape, and includes a first pixel in which an angle made by an alignment axis of the TFT substrate and a direction of a long axis of the slit is ?1 and a second pixel in which an angle made by the alignment axis of the TFT substrate and the direction of the long axis of the slit is ?2, ?1 and ?2 are in a relationship ?1=??2, the first pixel and the second pixel are arranged to switch in a first direction, and arranged to switch in a s
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: July 11, 2017
    Assignee: Japan Display Inc.
    Inventors: Masaru Nakakomi, Hiroaki Komatsu, Yuji Maede, Hirotaka Imayama
  • Patent number: 9704455
    Abstract: An information display apparatus includes an image pick-up unit configured to picking up an image, a display unit configured to display the image picked up by the image pick-up unit, a first correcting unit configured to correct the image picked up by the image pick-up unit to generate a first image, a second correcting unit configured to correct the image picked up by the image pick-up unit to generate a second image, a recognizing unit configured to recognize the second image generated by the second correcting unit, and a display control unit configured to display an additional information according to a result of the recognition performed by the recognizing unit with superimposing the additional information on the first image generated by the first correcting unit on the display unit.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: July 11, 2017
    Assignee: Yokogawa Electric Corporation
    Inventors: Yasuki Sakurai, Yousuke Ishii, Kenji Oishi
  • Patent number: 9690133
    Abstract: A display substrate includes a base substrate, a color filter layer and a retarder layer. The base substrate includes a first sub pixel area, a second sub pixel area and a third sub pixel area. The color filer layer is disposed on a front surface of the base substrate, and includes at least one of a magenta color filter, a cyan color filter and a yellow color filter in the first sub pixel area and the second sub pixel area and a white color filter in the third sub pixel area. The retarder layer is disposed on a rear surface of the base substrate opposite to the front surface of the base substrate. The retarder layer is configured to polarize light in the first sub pixel area and the second sub pixel area to form a first polarized light. The retarder layer is further configured to polarize the light in the third sub pixel area to form a second polarized light, the second polarized light being different from the first polarized light. Thus, a driving speed of a display apparatus may be decreased.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: June 27, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Keun Lee, Seon-Tae Yoon, Hyun-Min Cho, Jae-Byung Park, Hae-Il Park
  • Patent number: 9685116
    Abstract: A display device is disclosed to include a display panel including a plurality of data lines, a plurality of gate lines, and a plurality of pixels coupled to the data lines and gate lines. The data lines include first and second data lines, and the pixels include first and second color pixels. The display device also includes a data driving circuit to generate data voltages through a plurality of output channels, a gate driving circuit coupled to the gate lines, and a timing controller to generate control signals to the data driving circuit and the gate driving circuit. The display device further includes a demultiplexer switching circuit with first demux switches to supply, when turned on, the data voltages from the output channels to the first data lines, and second demux switches to supply, when turned on, the data voltages from the output channels to the second data lines.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: June 20, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Jungmin Lee, Changheon Kang
  • Patent number: 9672763
    Abstract: The present invention provides a pixel array including multiple pixel units, each of which includes two rows of sub-pixels, and each row of sub-pixels includes four sub-pixels of different colors, wherein in each pixel unit, colors of the first two sub-pixels in the previous row are the same as those of the last two sub-pixels in the next row, colors of the last two sub-pixels in the previous row are the same as those of the first two sub-pixels in the next row, and in the same row, any two adjacent sub-pixels form one pixel block. The present invention further provides a driving method of the above-mentioned pixel array, a display panel including the pixel array and a display device including the display panel.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: June 6, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Renwei Guo, Xue Dong
  • Patent number: 9659531
    Abstract: In a display device, pixels each including first to fourth subpixels that respectively display first to third primary colors and fourth color are arranged on an image display panel. A lighting unit emits light to the panel from the rear thereof. A control unit calculates a required luminance value for each block of the display surface of the panel based on an input image signal, determines a light source lighting amount of the lighting unit based on luminance distribution information on the lighting unit so as to satisfy the required luminance value, generates luminance information on each pixel based on the luminance distribution information and light source lighting amount, generates an output image signal that drives the subpixels based on the luminance information and input image signal, controls the lighting unit by the light source lighting amount, and controls the panel by the output image signal.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: May 23, 2017
    Assignee: Japan Display Inc.
    Inventors: Tsutomu Harada, Naoyuki Takasaki, Akira Sakaigawa, Amane Higashi
  • Patent number: 9653029
    Abstract: This application relates to methods and apparatus for refreshing a display device at various frequencies. Specifically, multiple areas of the display device can be refreshed concurrently at different frequencies. In this way, when static content is being displayed in certain areas of the display device, those certain areas can be refreshed at a lower rate than areas displaying dynamic content such as video or animation. By refreshing at lower rates, the energy consumed by the display device and subsystems associated with the display device can be reduced. Additionally, processes for reducing flicker when refreshing the display device at different refresh rates are disclosed herein.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: May 16, 2017
    Assignee: Apple Inc.
    Inventors: Chaohao Wang, Szu-Hsien Lee, Paolo Sacchetto, Shih Chang Chang, Chun-Yao Huang, Paul S. Drzaic
  • Patent number: 9646546
    Abstract: A color display has a monochrome modulator. An active area of the modulator is illuminated by an array of light sources. The light sources include light sources of three or more colors. The intensities of the light sources may be adjusted to project desired luminance patterns on an active area of the modulator. In a fast field sequential method different colors are projected sequentially. The modulator is set to modulate the projected luminance patterns to display a desired image. In a slow field sequential method, colors are projected simultaneously and the modulator is set to modulate most important colors in the image.
    Type: Grant
    Filed: December 27, 2015
    Date of Patent: May 9, 2017
    Assignee: Dolby Laboratories Licensing Corporation
    Inventor: Helge Seetzen
  • Patent number: 9639223
    Abstract: According to an aspect, a display device with a touch detection function includes a display area; a pixel electrode; a plurality of scan lines; a plurality of data lines; an auxiliary wiring that is a wiring of a metal material having an electrical resistance lower than that of a material of the drive electrodes, is arranged so as to extend in the row direction for each row of the pixels, and is electrically coupled to the drive electrode; a control device that performs image display control and touch detection control; a touch detection electrode that faces the drive electrodes and forms a capacitance with the drive electrodes; and a touch detection unit that detects a position of a proximity object based on a detection signal sent from the touch detection electrode.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: May 2, 2017
    Assignee: Japan Display Inc.
    Inventors: Hideki Kaneko, Yoshihide Oue
  • Patent number: 9627451
    Abstract: A pixel structure includes a plurality of pixel cells each including two sub-pixel cells. Each of the two sub-pixel cell includes: a first sub-pixel; and at least two second sub-pixels parallelly adjacent to each other. Herein, organic material parts of the at least two second sub-pixels are interconnected and the first sub-pixel is arranged staggered with any of the at least two second sub-pixels in both a first direction and a second direction, and the first direction is perpendicular to the second direction.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: April 18, 2017
    Assignee: EverDisplay Optronics (Shanghai) Limited
    Inventors: Xiaoli Xu, Nana Xiong
  • Patent number: 9626917
    Abstract: An image signal for red color display, an image signal for green color display, and an image signal for blue color display which correspond to a pixel are denoted as reference symbol RnL, reference symbol GnL, reference symbol BnL, respectively, a minimum value thereof is denoted as MinRGBnL, and a threshold defined as a predetermined value is denoted as reference symbol TH1. In a case, where MinRGBnL?TH1 holds: the value of the signal for the white color sub-pixel is MinRGBnL/TH1, the value of the signal for the red color sub-pixel is RnL?MinRGBnL, the value of the signal for the green color sub-pixel is GnL?MinRGBnL, and the value of the signal for the blue color sub-pixel is BnL?MinRGBnL.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: April 18, 2017
    Assignee: SONY CORPORATION
    Inventors: Ryo Kasegawa, Akihito Nishiike
  • Patent number: 9626915
    Abstract: A display device has a plurality of pixels, some of which have different sub-pixel arrangements. A first pixel includes only three sub-pixels to emit red, green, and white light, respectively. A second pixel neighbors the first pixel and includes only three sub-pixels to emit blue, green, and white light, respectively.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Park, Won-Woo Jang
  • Patent number: 9625781
    Abstract: The present disclosure relates to an array substrate, a display panel and a display device. The array substrate includes a display area and a peripheral area surrounding the display area. The peripheral area includes a gate drive circuit which is electrically connected to a plurality of signal lines so as to provide the scanning signals to the display area. The display area includes a plurality of sub-pixels arranged in an array pattern and at least one wiring areas disposed between the sub-pixels, at least one signal line which is electrically connected to the gate drive circuit is provided in the at least one wiring areas.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: April 18, 2017
    Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Zhaokeng Cao, Dandan Qin, Tingting Cui
  • Patent number: 9626898
    Abstract: A flat panel display is disclosed. In one aspect, the flat panel display includes a plurality of pixels arranged in rows and columns. The pixels include red, green, and blue pixels. The green pixels are formed to be spaced apart in the row and column directions such that at least two neighboring green pixels are indistinguishable at a predetermined viewing distance.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang Shin Lee
  • Patent number: 9620055
    Abstract: An organic electroluminescent display device, includes: a gray level extractor that extracts gray levels of frame data signals for a frame image; an image type determiner that determines a type of the frame image using a distribution of the gray levels of the frame data signals, the type of the frame image being one of a low-gray-level type, a medium-gray-level type and a high-gray-level type; a gamma reference voltage generator that selects a set of gamma reference voltages based upon the image type; a data driver converting the frame data signals into frame data voltages using the selected set of gamma reference voltages; a timing controller that supplies the frame data signals to the data driver; and a display area including pixels having an organic light emitting diode that display the frame image.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: April 11, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Byung-Hwee Park, Seung-Kyu Kim
  • Patent number: 9607581
    Abstract: Provided is a display device including: a display panel, a timing controller, a gate driver, and a data driver. The display panel includes a display area configured to display an image and a non-display area adjacent to one side of the display area. The display area includes oblique lines, intersectional lines crossing and isolated from at least a part of the oblique lines, and pixels. Pixels coupled to the oblique lines or the intersectional lines and arranged along a line in one direction are defined into pixel rows. The display area further includes a plurality of areas divided by the pixel rows being successive. The number of pixels constituting one of adjacent ones of the pixel rows in at least one of the plurality of areas is different from the number of pixels constituting another thereof.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: March 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Won Park, Joon-Chul Goh, Bonghyun You, KyoungHo Lim, Sangjin Jeon, Junki Jeong
  • Patent number: 9575376
    Abstract: A TFT array substrate for a TFT LCD includes a plurality of pixels each consisting of a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel arranged in a 2×2 matrix. Two data lines are located between each two neighboring columns of the sub-pixels. A scan line is located between two neighboring rows of the sub-pixels. The sub-pixels are driven by column inversion. The scan lines in electrical connections with different rows of the pixels are turned on successively along a vertical direction. Two neighboring same colored sub-pixels in a same row of the sub-pixels and two neighboring same colored sub-pixel in a same column of the sub-pixels respectively have opposite polarities when the TFT LCD is operated to output a screen having a color the same as the color of the two neighboring same colored sub-pixels.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: February 21, 2017
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Chih-Chung Liu, Ming-Tsung Wang, Li-Fang Wang, Jian-Xin Liu
  • Patent number: 9570015
    Abstract: The present invention discloses a signal conversion device, a signal conversion method and a display device. The signal conversion device includes a gamma conversion unit, a brightness detection unit and a brightness processing unit, wherein the gamma conversion unit is used for performing a gamma conversion process on RGB input signals and generating RGB brightness input values; the brightness detection unit is used for generating a W brightness input value based on RGB proportional coefficients and the RGB brightness input values; and the brightness processing unit is used for generating RGBW output signals based on the RGB proportional coefficients, the RGB brightness input values and the W brightness input value. With the present invention, the brightness of a displayed image can be increased without increasing the power consumption, so that the contrast of the displayed image is increased, and the display quality of the image is also improved.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: February 14, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fei Yang, Chen Zhang
  • Patent number: 9558697
    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: Grant
    Filed: November 13, 2014
    Date of Patent: January 31, 2017
    Assignee: Japan Display Inc.
    Inventor: Masakatsu Kitani
  • Patent number: 9552755
    Abstract: A display apparatus includes a light source configured to generate lights having a plurality of colors, the light source configured to be driven in a field sequential color driving method; and a display panel configured to receive the lights to display an image, display the colors at a first area in a first order, and display the colors at a second area different from the first area in a second order different from the first order.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: January 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Byung Park, Kwang-Keun Lee, Nam-Seok Roh, Seon-Tae Yoon
  • Patent number: 9520094
    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: Grant
    Filed: October 21, 2014
    Date of Patent: December 13, 2016
    Assignee: Japan Display Inc.
    Inventors: Tsutomu Harada, Naoyuki Takasaki, Susumu Kimura, Yasuhisa Shiraishi
  • Patent number: 9489911
    Abstract: A display device includes a first pixel group and a second pixel group. A central value of positive-side and negative-side grayscale voltages of the first pixel group is set to be a fixed value. A common voltage is adjusted to its optimal value with respect to the first pixel group. A difference between the common voltage adjusted to the optimal value with respect to the first pixel group and an optimal common voltage of the second pixel group is corrected by shifting entire positive-side and negative-side grayscale voltages of the second pixel group in a vertical direction.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: November 8, 2016
    Assignee: Japan Display Inc.
    Inventors: Yoshinori Aoki, Yuji Maede, Keita Sasanuma
  • Patent number: 9478003
    Abstract: A display driver that receives display line data of plural display lines to perform drive control on a display panel includes a line memory for storing display line data which is supplied from the outside. The display driver includes a logic circuit that controls write and read-out of the display line data in and from the line memory, and sorts pixel data of the display line data using read out data from the line memory, to generate display drive data. Drive circuits drive the display panel in units of display lines based on the drive data which is output from the logic circuit. The drive circuits are separately arranged on both sides of the logic circuit and the line memory which are interposed therebetween. The storage capacity of the line memory corresponds to the number of lines smaller than the number of display lines of a display frame.
    Type: Grant
    Filed: September 20, 2014
    Date of Patent: October 25, 2016
    Assignee: Synaptics Display Devices GK
    Inventors: Hikaru Shibahara, Hideaki Honda, Hiroki Takeuchi
  • Patent number: 9460674
    Abstract: A display panel, a driving method for the same, and a display apparatus, wherein the display panel includes: a display substrate with a plurality of TFTs arranged in an array, a source driving integrated circuit and a gate driving integrated circuit, the gate driving IC is connected with a plurality of gate lines, each gate line is connected with the gates of the TFTs in adjacent N rows, and different gate lines are connected with the gates of the TFTs in different rows, N is an integer being greater than 1; the source driving IC is connected with a plurality of source lines, sources of different TFTs connected to a same gate line are connected with different source lines, and sources of the TFTs, which are connected to different gate lines and located in a same column and spaced g*N?1 TFTs apart, are connected with a same source line.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: October 4, 2016
    Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Rui Guo
  • Patent number: 9449564
    Abstract: To provide a hold-type display device having a fine luminance efficiency while suppressing generation of motion blur. A controller according to the invention adjusts a signal outputted to a hold-type image display panel, which includes: a double-speed drive converting part which divides one frame of an inputted video signal to a plurality of sub-frames; a color converting part which converts a video signal of three primary colors including the plurality of sub-frames to a video signal of four or more colors including the three primary colors and a compound color; and a sub-frame converting part which converts, the video signal converted by the color converting part, to a signal having a plurality of different gradations whose average luminance value becomes equivalent to luminance of the video signal converted by the color converting part, and takes each of the plurality of gradations as each of gradations of the plurality of sub-frames.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: September 20, 2016
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Hiroaki Kimura
  • Patent number: 9442342
    Abstract: An electro-optic system is provided that includes a front element having first and second surfaces, a rear element including third and fourth surfaces, wherein the front and rear elements are sealably bonded together in a spaced-apart relationship to define a chamber, and an electro-optic medium contained in the chamber, and the electro-optic medium is adapted to be in at least a high transmittance state and a low transmittance state.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: September 13, 2016
    Assignee: GENTEX CORPORATION
    Inventors: Kelvin L. Baumann, John A. VanderPloeg, David A. Theiste, Thomas F. Guarr, Henry A. Luten, George A. Neuman, John S. Anderson
  • Patent number: 9440090
    Abstract: A photo-therapy method using a display device is provided. The photo-therapy method includes receiving a viewing time input and a photo-therapy selection input, wherein the viewing time input represents an expected viewing time of a user and the photo-therapy selection input represents a photo-therapy selected by the user. The photo-therapy method further includes calculating a period of a photo-therapy image based on the expected viewing time and a suggested treatment time of the selected photo-therapy, and displaying the photo-therapy image with the calculated period while displaying a normal image.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: September 13, 2016
    Assignee: Samsung Display Co., LTD.
    Inventors: Min-Gyeong Jo, Jong-In Baek, Won-Sang Park, Jong-Ho Hong
  • Patent number: 9443321
    Abstract: An image generating device includes a first image-information generating unit that generates first image information based on a plurality of pieces of acquired color element information, a color-component detecting unit that detects a predetermined color component based on each piece of color element information, a color-component eliminating unit that eliminates the predetermined color component detected by the color-component detecting unit from a predetermined piece of color element information among the plurality of pieces of color element information, and a second image-information generating unit that generates second color information based on a piece of color element information obtained by eliminating the predetermined color component by the color-component eliminating unit and another piece of color element information.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: September 13, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Tetsuo Minai, Kazuaki Tamura, Takeshi Mori
  • Patent number: 9437127
    Abstract: A device and a method for displaying an image, a device and a method for supplying power, and a method for adjusting brightness of contents are provided. The device for displaying the image includes: a pixel value converter which, if a plurality of color pixel values of the image is received, converts the received color pixel values; a display panel which includes a plurality of color light-emitting devices and which drives each of the plurality of color light-emitting devices based on the converted color pixel values; a light-emission controller which provides the display panel with a control signal which variably controls respective driving times of each of the color light-emitting devices based on colors; and a global controller which controls the light-emission controller to variably adjust a duty ratio of the control signal based on colors and the converted color pixel values.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-sung Park, Hyung-rae Kim, Myoung-jun Lee, Sang-hoon Lee, Byeong-cheol Hyeon
  • Patent number: 9429760
    Abstract: Spatial color mixing in a cascade imaging system is provided herein. The system comprises: at least two spatial light pre-modulators; and, a primary spatial light modulator, each of the at least two spatial light pre-modulators configured to vary illuminating light colors spatially across the primary spatial prime modulator simultaneously with at least two of the illuminating light colors, and the primary spatial light modulator configured to form the illuminating light colors into images and turn on pixels of each of the at least two of the illuminating light colors simultaneously in synchronization with the at least two spatial light pre-modulators.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: August 30, 2016
    Assignee: CHRISTIE DIGITAL SYSTEMS USA, INC.
    Inventor: Stuart Nicholson