Intensity Or Color Driving Control (e.g., Gray Scale) Patents (Class 345/690)
  • Patent number: 10290251
    Abstract: A display apparatus includes a display panel having a plurality of gate lines, a plurality of data lines, and a plurality of subpixels. Each of the plurality of subpixels includes a subpixel electrode connected to one of the plurality of gate lines and one of the plurality of data lines through a switching element. A gate driver is configured to output a plurality of gate signals to the plurality of gate lines and to deactivate at least one of the plurality of gate signals in a P-th frame. A data driver is configured to output a plurality of data voltages to the plurality of data lines. Here, P is a positive integer.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: May 14, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Minwook Park, Jinyoung Lee, Seung-Won Kuk, Yunjae Park
  • Patent number: 10290264
    Abstract: A method for calibrating a color space transformation according comprises driving of a light source at a first ambient temperature T1. The light source it is tuned to emit light with a number N of combinations of at least two correlated color temperatures and at least two intensities. Furthermore, the method includes receiving first red coordinates, first green coordinates and first blue coordinates measurements in the RGB color space. First x-coordinates, first y-coordinates and first z-coordinates are received from measurements in the XYZ color space. 3×N matrices RGB_1 and XYZ_1 are constructed based on the received coordinates. A 3×3 conversion matrix C is generated to fulfil the relation XYZ_1=C*RGB_1.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: May 14, 2019
    Assignee: ams AG
    Inventors: Sajol Christopher Ghoshal, Sina Afshari
  • Patent number: 10283033
    Abstract: A driving method for a display panel, a driving circuit and a display device are disclosed. The driving method comprises; dividing input signals into M×N final signal groups according to positions of respective corresponding initial pixels in an input image; determining a reference brightness value of each final subarea according to the input signals; determining a brightness reduction function corresponding to the reference brightness value of the final subarea; adjusting a brightness value of each initial pixel in the final subarea according to the brightness reduction function corresponding to the final subarea, so as to adjust the brightness value of each initial pixel in each final subarea from an initial brightness value to a final brightness value; generating a voltage enabling display pixels of the display panel to display the obtained final brightness values; and inputting the obtained voltage to the display pixels of the display panel, respectively.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: May 7, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ming Liu, Lintao Zhang
  • Patent number: 10281749
    Abstract: The present disclosure relates to the field of display technology, and provides a display substrate, its driving method and a display device, so as to reduce the power consumption of the display device. The display substrate includes a plurality of first transparent regions arranged in an array form. Each first transparent region serves as a subpixel, and a pixel includes at least two adjacent subpixels. The subpixels in each pixel correspond to backlight lamps in different colors respectively. The display substrate further includes a plurality of light-shielding structures each corresponding to one of the subpixels and configured to adjust a light transmission rate of the subpixel.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: May 7, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiuxia Yang, Feng Bai
  • Patent number: 10283037
    Abstract: Systems and apparatuses provide a digital architecture with merged non-linear emission clocks for a display panel. In one embodiment, a display driver hardware circuit includes decoder logic to store a mapping between a plurality of non-linear gray scale clock signals and a merged non-linear gray scale clock signal that represents a combination of the plurality of non-linear gray scale clock signals including first and second non-linear gray scale clock signals. In one example, the first non-linear gray scale clock signal is associated with at least one display element of a first color and the second non-linear gray scale clock signal is associated with at least one display element of a second color. A driver circuitry is coupled to the decoder logic.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: May 7, 2019
    Assignee: Apple Inc.
    Inventors: Mohammad B. Vahid Far, Hopil Bae, Hyunwoo Nho, Xiang Lu
  • Patent number: 10277873
    Abstract: A system and method for providing a dimming factor of N using a laser display device having plural colored laser diodes each generating a colored laser beam according to control parameters. At least one of the control parameters of at least one of the laser diodes is varied, at least one of the control parameters being operative to reduce intensity of at least one of the colored laser beams. Varying may comprise providing a dimming factor of m<N using first laser diode data current control apparatus able to provide m<N dimming levels and a dimming factor of at least N/m<N, using at least a second laser diode data current control apparatus able to provide a dimming factor of at least N/m, but less than N.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 30, 2019
    Assignee: MARADIN TECHNOLOGIES LTD.
    Inventors: Matan Naftali, Gad Yearim, Adi Baram, Menashe Yehiel
  • Patent number: 10275094
    Abstract: A photo sensor pixel includes a pixel circuit including a driving transistor, a switching transistor having a double gate structure and a photo sensing transistor connected in series with the switching transistor. The pixel circuit drives a light emitting element therein based on a data voltage provided thereto through a data line, the switching transistor includes a top gate electrode and a bottom gate electrode, which are connected to different gate lines, respectively, and the photo sensing transistor senses incident light.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Keunwoo Kim, Sooyoung Park, Joonghyun Park
  • Patent number: 10276079
    Abstract: A display device including a pixel including a mixed sub pixel configured to receive a mixed data voltage, the mixed sub pixel including a lower pixel configured to display white light having a white color corresponding to the mixed data voltage, and an upper pixel configured to display an auxiliary color light having an auxiliary color corresponding to the mixed data voltage.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 30, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Namjae Lim, Sungjae Park, Jung-won Kim, Jinpil Kim, Jaesung Bae
  • Patent number: 10276254
    Abstract: The present disclosure describes a shift register unit, an organic light-emitting display panel and a driving method. The shift register unit comprises a node potential controller and an output unit. The node potential controller comprises a first output end and a second output end. The output unit is configured to output, based on a first control signal from the first output end and a second control signal from the second output end, a first level signal or a second level signal. According to the solutions provided by the application, the potential of each node in the shift register unit is stable and controllable, and contributed to the avoidance of output logic execution problem in the shift register unit caused by unstable node potential when each control signal level of the shift register unit jumps.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: April 30, 2019
    Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Dong Qian, Gang Liu
  • Patent number: 10269325
    Abstract: A display system for connecting a computer to a display having EDID information. The display system includes a graphics card and an adapter. The graphics card is in communication with the computer and includes: a graphics processor; a graphics card controller coupled to the graphics processor; and a memory coupled to the graphics card controller and the graphics processor. The adapter has an adapter controller, the adapter coupled to the display and coupled to the graphics card, wherein the graphics card controller is configured to query the EDID information from the display and store the EDID information as emulated EDID information in the memory and further wherein the graphics processor reads the emulated EDID information from the memory rather than from the display.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 23, 2019
    Assignee: ADVOLI LIMITED
    Inventors: Clas Gerhard Sivertsen, Paal Fure Torkehagen
  • Patent number: 10269275
    Abstract: A method for inspecting a display panel in which pixels each including a drive transistor that passes a drive current when signal voltage is applied to the gate of the drive transistor, and a light-emitting element that emits light according to the flow of the drive current are arranged in rows and columns, includes: applying, across the gate and the source of the drive transistor, an initialization voltage less than or equal to the threshold voltage of the drive transistor; applying a power supply voltage to the drain of the drive transistor to which the initialization voltage is applied across the gate and the source; and determining, as a defective pixel with a current leak, a pixel having a light-emitting element that does not emit light when the power supply voltage is applied to the drain of the drive transistor and emits light after the elapse of a predetermined period.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 23, 2019
    Assignee: JOLED INC.
    Inventor: Yoshiki Tsujita
  • Patent number: 10269311
    Abstract: An electrowetting display device includes a plurality of pixels and a packaged integrated circuit that includes an output pin configured to electrically connect to a display driver, a rendering engine configured to output an initial luminance value for a first pixel in a plurality of pixels, and a memory controller. The memory controller includes a first frame buffer storing a current luminance value for the first pixel, a second frame buffer, and a front-end interface controller configured to encode a next luminance value. The next luminance value is at least partially determined by the initial luminance value for the first pixel. The memory controller includes a back-end interface controller configured to transmit a data signal through the output pin to the display driver to cause the display driver to apply a driving voltage to the first pixel. The driving voltage is at least partially determined by the current luminance value.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: April 23, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Petrus Maria de Greef, Anthony Botzas, Robert Waverly Zehner, Jozef Elisabeth Aubert, Johannes Wilhelmus Hendrikus Mennen
  • Patent number: 10269304
    Abstract: Disclosed is a method and a device for driving a liquid crystal display panel. The method comprises the following steps. A first pixel signal of an image to be displayed is converted to a second pixel signal. An adjusted gray scale of each of sub-pixels and/or an adjusted backlight brightness of a backlight is acquired based on the second pixel signal and the first pixel signal. Each of the sub-pixels in the liquid crystal display panel is driven so that each of the sub-pixels can have a corresponding adjusted gray scale, and/or, the backlight is activated so that the backlight can have the adjusted backlight brightness. With the driving device and the driving method, it is able to ensure that when the RGBW liquid crystal display panel displays a solid colored image, the brightness of the image will not be reduced.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: April 23, 2019
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd., Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xingling Guo, Taisheng An
  • Patent number: 10262619
    Abstract: The invention provides a display panel and a power control system of a drive circuit of the display panel. The power control system includes a timer controller, a power manager, and a drive circuit. The timer controller is used for receiving a first video signal and sending a finishing signal to the power manager after reading a decoding code for decoding the first video signal successfully. The power manager is used for sending a first drive voltage and a second drive voltage to the drive circuit after receiving the finishing signal. The power control system reduces the time difference between the video signal and the voltage, thereby avoiding the black screen problem.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: April 16, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yuntao Li
  • Patent number: 10262582
    Abstract: A image sticking compensating device according to example embodiments includes a degradation calculator configured to calculate a degradation weight based on input image data, and to calculate degradation data of a frame, an accumulator configured to accumulate the degradation data, and to generate age data using the accumulated degradation data, and a compensator configured to determine a grayscale compensation value corresponding to the age data and an input grayscale of the input image data, and to output age compensation data by applying the grayscale compensation value to the input image data.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 16, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang-Myeon Han
  • Patent number: 10261626
    Abstract: An example method of driving a display having a touch sensor includes: generating a plurality of display frames having an alternating sequence of display and blanking periods; supplying pixel line data to the display during the display periods and sensing signals to the touch sensor during the blanking periods; and timing the blanking periods so that display frames of a first type each have a first number of the blanking periods and that display frames of a second type each have a second number of the blanking periods, the second number less than the first number.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: April 16, 2019
    Assignee: SYNAPTICS INCORPORATED
    Inventor: Petr Shepelev
  • Patent number: 10255846
    Abstract: A scan driver includes a plurality of stages, each outputting a scan signal in response to a scan start pulse and clock signals. Each stage includes a first input circuit applying a high gate voltage to a first node in response to the scan start pulse or the scan signal from a previous stage, a second input circuit applying a first clock signal to a second node based on the first node's voltage, a first output circuit outputting a second clock signal as the scan signal in response to the first node's voltage, a second output circuit outputting a low gate voltage as the scan signal in response to the second node's voltage, and a leakage circuit coupled to the high gate voltage and providing a current from the high gate voltage to the second node in response to the voltage of the second node having a high level.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jisu Na
  • Patent number: 10255867
    Abstract: A display device includes a plurality of driving circuits, a plurality of terminals formed in each of the plurality of driving circuits, a plurality of signal lines connected to the plurality of terminals, a plurality of pixel electrodes, each of the plurality of pixel electrodes connected to each of the plurality of signal lines; and a switch configured to change a connection mode between the plurality of terminals and the plurality of signal lines. The plurality of signal lines includes a first line, a second line and a third line arrayed in this order. The plurality of terminals includes a first terminal. The switch, configured to change from a first connection mode to a second connection mode, the first terminal connecting the first line and the second line in the first connection mode, and the first terminal connecting the second line and the third line in the second connection mode.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 9, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Katsuji Tanaka, Teruhisa Nakagawa
  • Patent number: 10255883
    Abstract: An image processing apparatus for outputting to a display unit an output image, includes a conversion unit configured to convert a gradation value of a first pixel, of an input image, the first pixel corresponding to luminance higher than a maximum value of luminance at which the display unit can display into a predetermined gradation value, to convert a gradation value of a second pixel of the input image, the second pixel corresponding to luminance less than or equal to the maximum value of the luminance at which the display unit can display, into a gradation value less than or equal to the predetermined gradation value, and to generate the output image that includes both the first pixel with converted gradation value and the second pixel with converted gradation value; and an output unit configured to output the output image to the display unit.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: April 9, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshiyuki Nagashima
  • Patent number: 10255847
    Abstract: A level shift circuit is configured to receive reference voltage and first to third voltages, and to generate an output signal. The voltages satisfy a condition in which the reference voltage<the first voltage<the second voltage<the third voltage or the reference voltage>the first voltage>the second voltage>the third voltage. The level shift circuit includes a first level shift circuit configured to receive a first signal having a first amplitude within a difference between the reference and first voltages, and level shift the first signal to a second signal having a second amplitude within a difference between the reference and second voltages, and a second level shift circuit configured to level shift the second signal to a third signal having a third amplitude within a difference between the reference and third voltages, and output the third signal as the output signal.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 9, 2019
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventor: Hiroshi Tsuchi
  • Patent number: 10257683
    Abstract: A method of correcting a radio wave strength of a packet received by a communication terminal is disclosed, comprising: displaying a first screen related to the correction of the radio wave strength of the received packet; acquiring first information indicating the radio wave strength of the received packet, according to acceptance of a predetermined user instruction via the first screen; displaying a second screen related to the correction of the radio wave strength of the received packet, at least according to completion of the acquisition; acquiring second information indicating the radio wave strength of the received packet, according to acceptance of a predetermined user operation via the second screen; and deciding a correction value at least based on the acquired first and second information. Thus, it is possible to accurately perform proximity determination of determining that a mobile terminal and an information processing apparatus are within a certain distance.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: April 9, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hirokazu Tokumoto
  • Patent number: 10255851
    Abstract: An emission driver includes a plurality of circuit stages to output emission control signals. Each circuit stage includes signal generators, a pull-up controller to control a pull-up circuit, and a pull-down controller to control a pull-down circuit. One signal generator generates node signals based on a carry signal and a second clock signal. Another signal generator generates a first clock signal delayed from the second clock signal and another node signal. The pull-up circuit pulls up an emission control signal to a first driving voltage based on some of the node signals. The pull-down circuit pulls down the emission control signal to a second driving voltage lower than the first driving voltage. The pull-down controller control the pull-down circuit based on delayed dimming clock signals.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hwan-Soo Jang
  • Patent number: 10254579
    Abstract: A curved display device includes: first and second substrates having a first panel portion at a center thereof and having second and third panel portions at respective sides of the first panel portion; gate and data lines crossing each other to define a plurality of sub-pixels; a black matrix having a plurality of open portions corresponding to respective ones of the sub-pixels; and first to third color filters between the black matrix and the first substrate. The black matrix between the open portions has first to third black matrix widths in the first to third panel portions, respectively, and the open portion has first to third open portion widths in the first to third panel portions, respectively. Each of the second and third BM widths is equal to or greater than the first black matrix width, and the second and third BM widths are equal to each other.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 9, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Jong-Sin Park, Se-Hong Park, Yi-Yeon Hwang
  • Patent number: 10248372
    Abstract: An embodiment method of manufacturing modular panels includes manufacturing a group of modular display panels, including a first and second modular display panel that have the same size and shape. The first modular display panel includes a first pixel array arranged at a first pitch, and the second modular display panel includes a second pixel array that is arranged at a second pitch that is different than the first pitch. Any two modular display panels in the group are capable of being attached to each other in an integrated display system.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 2, 2019
    Assignee: ULTRAVISION TECHNOLOGIES, LLC
    Inventor: William Y. Hall
  • Patent number: 10249230
    Abstract: An image processor includes an average luminance calculator which calculates an average luminance of a current frame based on a first average luminance of input image data corresponding to a partial screen and a second average luminance of previous image data corresponding to an entire screen, a conversion curve generator which generates a luminance conversion curve based on the average luminance, a luminance converter which generates conversion image data by converting luminance data of the input image data based on the luminance conversion curve, and an image merger which generates output image data by merging the conversion image data and the previous image data.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: April 2, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Dae Lee, Eun-Ho Lee
  • Patent number: 10249248
    Abstract: The present disclosure provides a display device. The display device may comprise a display panel including a plurality of pixels, a reference current source providing a reference current, and a source drive IC including sensing units for sampling a signal input from the pixel through a sensing line and an ADC connected to the sensing units and obtaining sensing data related to a driving of the pixel. The source drive IC may further comprise a switch array connecting the sensing lines and the sensing units, and the switch array in each sensing unit may comprise a first switch for connecting a corresponding sensing unit to a first sensing line corresponding to the corresponding sensing unit and a second switch for connecting the corresponding sensing unit to a second sensing line adjacent and previous to the first sensing line or the reference current source.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 2, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Changwoo Lee, Jeongtae Hwang, Byungjae Lee
  • Patent number: 10242649
    Abstract: Systems and methods for improving displayed image quality of an electronic display including a display pixel and a display driver are provided. A display pipeline receives input image data that indicates target luminance of the display pixel when displaying an image frame on the electronic display; determines a first bit group in pixel response corrected image data by mapping a first bit group in the input image data based at least in part on a first pixel response correction look-up-table; determines a second bit group in the pixel response corrected image data by mapping a second bit group in the input image data based at least in part on a second pixel response correction look-up-table; and outputs the pixel response corrected image data to the display driver to enable the display driver to facilitate displaying the image frame by writing the display pixel based on the pixel response corrected image data.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 26, 2019
    Assignee: Apple Inc.
    Inventors: Mahesh B. Chappalli, Chaohao Wang, Guy Côté, Marc Albrecht
  • Patent number: 10242622
    Abstract: A pixel compensation circuit, an organic light-emitting display panel and an organic light-emitting display device are provided. The pixel compensation circuit includes a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor, a fifth switch transistor, a sixth switch transistor, a light-emitting element, a seventh switch transistor, a storage capacitor, and a drive transistor. The first switch transistor, the fourth switch transistor, and the fifth switch transistor provide a signal on a reference voltage signal terminal to a first node and provide a threshold voltage to a gate of the drive transistor. The second switch transistor and the third switch transistor couple a signal on a first power supply terminal in real time to the gate of the drive transistor. A driving current generated by the drive transistor is protected from adverse effects caused by IR Drop on the first power supply terminal.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: March 26, 2019
    Assignee: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Chang-ho Tseng, Chuanli Leng, Yuan Li
  • Patent number: 10235938
    Abstract: A gate driver IC (i.e., gate driver circuit), when set to a first mode by a logic signal of the terminal FNC*, shifts data in the gate driver IC in synchronization with one clock cycle of a clock inputted to the terminal CLK** (clock input terminal), and outputs a selection voltage or a non-selection voltage based on a data position in the gate driver IC; and when set to a second mode by a logic signal of the terminal FNC*, shifts data in the gate driver IC in synchronization with n clock cycles (n is an integer of at least 2) of a clock inputted to the terminal CLK**, and outputs the selection voltage or the non-selection voltage based on the data position in the gate driver IC.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: March 19, 2019
    Assignee: JOLED INC.
    Inventors: Hiroshi Takahara, Hirofumi Nakagawa
  • Patent number: 10235951
    Abstract: A liquid crystal display (LCD) device and a method for driving LCD. Such a device may have a plurality of LCD pixels in a matrix, a driver that inputs a drive signal to each pixel selectively and a controller that controls a level and a polarity of the drive signal, and a memory storing corrected charge voltage values. Each pixel is provided with the drive signal based on the corrected charge voltage values for the corresponding pixel during the entirety of a horizontal period, and the corrected charge voltage value has a predetermined value corresponding to a charge for an intended gray scale level of the pixel at the end of the horizontal period without an over shooting of the driving voltage. When the target gray scale of the pixels is at the brightest level, a predetermined negative corrected charge is applied to the pixel to avoid an after image.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: March 19, 2019
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Junichi Maruyama, Takashi Nakai, Ryutaro Oke
  • Patent number: 10235947
    Abstract: In one embodiment, a dual modulator display systems and methods for rendering target image data upon the dual modulator display system are disclosed where the display system receives target image data, possible HDR image data and first calculates display control signals and then calculates backlight control signals from the display control signals. This order of calculating display signals and then backlight control signals later as a function of the display systems may tend to reduce clipping artifacts. In other embodiments, it is possible to split the input target HDR image data into a base layer and a detail layer, wherein the base layer is the low spatial resolution image data that may be utilized as for backlight illumination data. The detail layer is higher spatial resolution image data that may be utilized for display control data.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: March 19, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Robin Atkins, Rabab K. Ward
  • Patent number: 10234625
    Abstract: A display apparatus includes a plurality of pixels disposed in an active area, a plurality of non-pixels disposed in a non-active area adjacent to the active area, and a plurality of light guide members disposed on boundary pixels of the pixels in the active area and which extends into the non-active area and is disposed on the non-pixels in the non-active area. The boundary pixels are adjacent to a boundary between the active area and the non-active area, and the light guide members guide light exiting from the boundary pixels to the non-pixels.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junwoo You, Taeho Lee
  • Patent number: 10229640
    Abstract: A liquid crystal display device employing a field sequential system includes: a color correction unit (122) configured to perform a color correction processing that changes a saturation of input gradation data representing a color of a pixel without changing a hue thereof and configured to output pixel data obtained by the color correction processing as digital gradation data (D1 to D3) which are data corresponding to each field; and a digital gradation data correction unit configured to perform correction that enhances a temporal change of data values of digital gradation data (D1 to D3) outputted from the color correction unit (122). The color correction unit (122) performs the color correction processing on the input gradation data such that a color based on pixel data obtained by the color correction processing is a color that can be displayable in the liquid crystal panel by the field sequential system.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: March 12, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidekazu Miyata, Masamitsu Kobayashi
  • Patent number: 10229540
    Abstract: An example technique may include performing, by a virtual reality application provided on a computing device, video rendering at a first video rendering rate based on updating an entire image on a screen of the computing device at a first update rate, determining that a performance of the video rendering is less than a threshold, performing, based on the determining, video rendering at a second video rendering rate by updating a first portion of the image at the first update rate, and by updating a second portion of the image at a second update rate that is less than the first update rate. Another example technique may include shifting, during an eye blinking period, one or both of a left eye image and a right eye image to reduce a disparity between a left viewed object and a right viewed object.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 12, 2019
    Assignee: GOOGLE LLC
    Inventors: Clayton Woodward Bavor, Jr., Joshua Weaver, Alexander James Faaborg, Eliezer Peli
  • Patent number: 10229627
    Abstract: Embodiments of the disclosure provide a display driving device including: a counting unit configured to count the number of first pixel points whose gray level values are larger than or equal to a first gray level value and the number of the other pixel points whose gray level values are smaller than the first gray level value in an image displayed by a target display, a comparing unit configured to compare the number of the first pixel points and the number of the other pixel points and transmit a first instruction to the driving unit if the former is larger than or equal to the latter, and a driving unit configured to control a refresh frequency of the display to be larger than or equal to a first frequency if the first instruction is received, otherwise, control the refresh frequency of the display to be smaller than the first frequency.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: March 12, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qingfang Bian, Xue Dong, Dong Chen, Hao Zhang, Lingyun Shi
  • Patent number: 10229649
    Abstract: A user terminal apparatus is provided. The apparatus includes a first body, a second body mounted on one side of the first body to be slidably connected to the first body, a transparent display formed on the second body, and a controller configured to provide different user functions to a first area in the transparent display, which overlaps with the first body, and a second area which is a remaining part of the transparent display in response to the second body being slid from the first body to open the first body.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 12, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-young Park, Kil-soo Jung
  • Patent number: 10223980
    Abstract: Disclosed is a display device comprising: at least one processor and a memory, wherein the memory stores therein computer readable instructions, wherein the at least one processor executes the computer readable instructions to: if an input image signal is received, adjust refresh frequency of the display device to the frequency of the input image signal, and generate an output image signal and a field sync signal according to the input image signal, wherein the filed sync signal and the input image signal are in sync with each other and have the same frequency; output a backlight driving signal at a rising edge of the field sync signal acting as a trigger edge, so that backlighting of the display device is synchronized with image display of the display device; and perform the image display according to the output image signal and provide the backlighting according to the backlight driving signal.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: March 5, 2019
    Assignees: HISENSE ELECTRIC CO., LTD., HISENSE USA CORPORATION, HISENSE INTERNATIONAL CO., LTD.
    Inventors: Junyu Luo, Mingtao Liu, Shengfeng Hong, Mingsheng Qiao
  • Patent number: 10217407
    Abstract: A driving system of an OLED display panel and a static image processing method are disclosed. The method includes steps of: detecting a static image on the OLED display panel; classifying a detected static image according to image features; and selecting a corresponding processing mode according to the static image after classification so as to reduce an afterimage. According to the present disclosure, the afterimage on the display panel can be reduced.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: February 26, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Po Yen Lu, Tai Jiun Hwang, Jianhang Fu
  • Patent number: 10217437
    Abstract: A method of color conversion from a red-green-blue (RGB) color space to a red-green-blue-white (RGBW) color space on an input image includes calculating RGB and white gains with respect to an image block of the input image, calculating RGB and white gain with respect to a pixel of the image block, wherein the white gain with respect to the pixel of the image block is adjusted based on the RGB gain with respect to the pixel of the image block, and performing the RGB to RGBW color conversion based on the RGB and white gain with respect to the pixel of the image block, which improves local color and detail performance of an output image corresponding to the input image.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: February 26, 2019
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Lei Zhang, Danyu Fu, Yuanjia Du, Yen-Tao Liao
  • Patent number: 10219028
    Abstract: Provided are a display, a display device, a player, a playing device, and a playing display system. The display comprises at least two first display interfaces, a decode, and at least two data channels. Each first display interface is configured to receive a first image data stream transmitted by a second display interface with which a connection has already been established in a player. The first image data stream includes at least one start data frame and a second image data stream, the start data frame carries a data channel identifier. The decoder is configured to parse each first image data stream, and obtain a data channel corresponding to each second image data stream. Each data channel is configured to receive and output the corresponding second image data stream. The display can ensure that images displayed on a screen will not be ordered, and the operation is simple.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: February 26, 2019
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Ran Duan
  • Patent number: 10216305
    Abstract: A flexible display panel and device are provided. Data connection touch lines bypass a camera module to electrically couple the data lines at the two sides of the camera module together. Light emitting display can be achieved in a non-display region, thereby increasing a light emitting display area of the flexible display panel.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: February 26, 2019
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Shuang Li, Jian-hong Lin
  • Patent number: 10217353
    Abstract: A data transmitting method, a data receiving method and the related device and system are provided. The data transmitting device includes a display screen, a first determination module, configured to determine one or more transmitting regions of the display screen, and a transmitting module, configured to transmit, by controlling a display of the one or more transmitting regions, target data in a format of a machine language via optical signals. The data receiving device includes a panel on which a plurality of optical sensors is arranged, a second determination module, configured to determine one or more receiving regions of the panel each corresponding to one or more of the optical sensor, and a receiving module, configured to receive, through each optical sensor in the one or more receiving regions, target data in a format of a machine language transmitted via optical signals.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: February 26, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Feng Guan, Zhanfeng Cao, Zhengliang Li, Qi Yao, Yaohui Gu
  • Patent number: 10210789
    Abstract: A display panel, driving method thereof and display apparatus are provided. The display panel comprises 4N gate lines, drive controlling circuit (1) connected to respective gate driving circuits and configured to output a group of timing control signals to respective gate driving circuits, and mode switching circuit (2) connected to drive controlling circuit (1), which can control drive controlling circuit (1) to drive all gate driving circuits to output scan signals sequentially to respective first gate line groups by taking two adjacent gate lines as first gate line group in scanning direction when receiving first mode control signal; and/or control drive controlling circuit (1) to drive all gate driving circuits to output scan signals sequentially to respective second gate line groups by taking four adjacent gate lines as second gate line group in scanning direction when receiving second mode control signal. Therefore, power consumption can be reduced, and standby-time can be prolonged.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 19, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Fuqiang Li, Jun Fan, Xiaochuan Chen, Xue Dong
  • Patent number: 10209530
    Abstract: Three-dimensional displays are described using electrophoresis or electro-wetting media to modulate the total internal reflection of light in a waveguide.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: February 19, 2019
    Assignee: E Ink Corporation
    Inventors: Stephen J. Telfer, Stephen Bull
  • Patent number: 10210604
    Abstract: A method for adjusting contrast includes: acquiring a corresponding grey-scale image of a current image; dividing the grey-scale image to obtain a plurality of divided regions; calculating JND values corresponding to the divided regions based on an area of each of the divided regions; and calculating a target contrast based on the JND value of each of the divided regions and a background brightness of the current image; adjusting the contrast of the current image based on the target contrast and a predetermined condition.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 19, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yufeng Jin
  • Patent number: 10212774
    Abstract: A lamp driving circuit for driving a lamp part, includes a correction part configured to receive a first control signal for driving the lamp part with a predetermined brightness, to receive duty information indicative of a ratio of a supply voltage for operating the lamp part and a voltage across the lamp part, and to correct the first control signal based on the duty information to generate a second control signal, and a control part configured to receive the second control signal from the correction part, and to drive the lamp part with the predetermined brightness based on the second control signal.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: February 19, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Jung-Nam In, Jong-Won Kim
  • Patent number: 10203787
    Abstract: A touch display device and an improvement method to a touch display device are disclosed. The improvement method first determines whether the touch display device turns on the touch mode. If yes, image data input to the touch display device is obtained and feature data is extracted from the image data. Then, adjustment or compensation factors are obtained according to the feature data. Grey level compensation sequence is also obtained. The duty cycle of the control signal for the touch display device is adjusted according to the factors and the grey level compensation sequence, so as to improve the display difference for a same grey level image due to the turning on of the touch mode.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: February 12, 2019
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventors: Zhenzhou Xing, Chunpeng Guo, Man Li
  • Patent number: 10203928
    Abstract: A display device as well as a method and a device for adjusting information channels of the same are disclosed. The adjusting method includes: turning the display device on; transmitting a picture to a display screen (1) of the display device for display, the picture comprising a plurality of sub-pictures in one-to-one correspondence with a plurality of sub-screens (11) which are spliced to form the display screen (1); acquiring an image displayed on the display screen (1); processing the acquired image, comparing the processed image with the picture, and identifying arrangement sequence of a plurality of information channels of the display device; and adjusting the respective information channels such that the image displayed by the display screen (1) is the same as the picture.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 12, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tianyue Zhao, Xitong Ma
  • Patent number: 10204545
    Abstract: A gate driver includes stages configured to output gate signals and gate initialization signals. Here, an Nth stage includes a first output block configured to generate an Nth carry signal based on an N?1th carry signal and to generate an Nth gate initialization signal based on the N?1th carry signal, an output enable signal, and an output disable signal that is an inverted signal of the output enable signal; and a second output block configured to generate an Nth gate signal by shifting the Nth gate initialization signal by a horizontal time, where N is a positive integer.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: February 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Su-Hyeong Park
  • Patent number: 10204556
    Abstract: A display panel includes: a display unit, including a pixel circuit; a first power transmission line and a second power transmission line; a DC-DC circuit, configured to provide a first supply voltage and a second supply voltage for the pixel circuit through the first power transmission line and the second power transmission line respectively; a control circuit, configured to control the DC-DC circuit to start to provide the second supply voltage after the DC-DC circuit starts to provide the first supply voltage, where a time interval between a start of providing the second supply voltage and a start of providing the first supply voltage is no less than a time period to display one image frame; and a start-up short detection circuit, configured to determine whether a short-circuit fault occurs between the first power transmission line and the second power transmission line.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: February 12, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Ying Liu