Controlling The Condition Of Display Elements Patents (Class 345/214)
  • Patent number: 11961452
    Abstract: A display device and a display driving method are disclosed. The display device includes a display panel including gate lines, data lines, and a plurality of subpixels including a plurality of driving transistors, a gate driving circuit configured to apply scan signals to the gate lines, a data driving circuit configured to convert image data into data voltages and apply the data voltages to the data lines, and a timing controller configured to compensate the data voltages applied to the plurality of driving transistors based on a real-time sensing process of characteristic values of the plurality of driving transistors, and control an application of a recovery voltage to at least one driving transistor of the plurality of driving transistors a plurality of times within a blank period of a frame period based on a reference period to reset the at least one driving transistor during the blank period.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: April 16, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jeonghyo Park, GeunWoo Lee
  • Patent number: 11961486
    Abstract: A display driving device configured to control a display panel including pixel units to display, includes: an over driver compensation module configured to, when a first polarity frame image is displayed, perform line over driver compensation on the pixel units based on line over driver compensation data corresponding to the first polarity frame image, to determine a target over driver grayscale of the pixel units; and to, when a second polarity frame image is displayed, perform line over driver compensation on the pixel units based on line over driver compensation data corresponding to the second polarity frame image, to determine a target over driver grayscale of the pixel units. The first and second polarity are opposite to each other, and the line over driver compensation data corresponding to the first polarity frame image is different from the line over driver compensation data corresponding to the second polarity frame image.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: April 16, 2024
    Assignees: Wuhan BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Xiao, Bing Li, Feng Jiang, Meng Feng, Mengchao Shuai, Hangyu Chen, Junmin Zhang
  • Patent number: 11955040
    Abstract: A display device is disclosed. The display device includes an array substrate and at least two driving units. The array substrate includes a peripheral region and a display region, the array substrate further includes a peripheral grounding line and a test line, wherein the peripheral grounding line is located in the peripheral region, and the test line is located in the peripheral region. The at least two driving units are located on at least one side of the array substrate, the driving unit includes at least two grounding pins, a grounding pin of at least one of the driving units is connected to the peripheral grounding line, and each of at least one grounding pin of one of two adjacent driving units is electrically connected to a corresponding grounding pin of the other adjacent driving unit.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: April 9, 2024
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Bingqing Yang, Wenkai Mu, Haoliang Ji, Bo Feng, Xiaoxiao Chen, Tianxin Zhao, Ji Dong, Zhiying Bao, Wenjun Xiao, Yang Wang, Shijun Wang, Hao Xu
  • Patent number: 11955071
    Abstract: A pixel circuit, a display panel and a method for driving the pixel circuit. The pixel circuit includes a first light emission control module and a gate initialization module. The first light emission control module includes a control terminal, a first terminal and a second terminal, where the control terminal of the first light emission control module is electrically connected with a first light emission control signal, the first terminal of the first light emission control module is electrically connected with a first power signal, and the second terminal of the first light emission control module is electrically connected to the first electrode of the drive transistor.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: April 9, 2024
    Assignee: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD
    Inventors: Dongfang Zhao, Zhe Du, Junfeng Li, Gang Wang, Yong Ge
  • Patent number: 11935462
    Abstract: The present application relates to an electronic device comprising: a display unit, a display driver circuit and a circuit element. The display driver circuit is coupled to the display unit. The circuit element is placed under a display area of the display unit. The circuit element receives a dynamic refresh signal generated by the display driver circuit. The dynamic refresh signal contains a refresh rate information of the display unit. Thereby, the problem that the interference between the display pixels and the circuit element under the display unit cannot be avoided when the refresh rate changes is solved.
    Type: Grant
    Filed: December 19, 2022
    Date of Patent: March 19, 2024
    Assignee: Sensortek Technology Corp.
    Inventors: Yen-Chung Lin, Rong-Fong Chen
  • Patent number: 11915639
    Abstract: A display panel of a display device is divided into a first display region and a second display region. The second display region includes a boundary region adjacent to the first display region and a non-boundary region opposite to the first display region with respect to the boundary region. The driving controller outputs the voltage control signal, such that the first voltage in a first high voltage level and the second voltage in a first low voltage level are generated when the first display region is driven. The driving controller outputs the voltage control signal, such that the first voltage in a second high voltage level lower than the first high voltage level and the second voltage in a second low voltage level higher than the first low voltage level are generated, when the non-boundary region of the second display region is driven.
    Type: Grant
    Filed: February 12, 2023
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Taehoon Kim, Seon Young Choi, Sangan Kwon, Soon-Dong Kim, Jin-Wook Yang, Changnoh Yoon
  • Patent number: 11908401
    Abstract: A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: February 20, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eunjin Choi, Wonjin Seo, Kihyun Pyun
  • Patent number: 11875744
    Abstract: Methods of compensating for common unwanted signals present in pixel data measurements of a pixel circuit in a display having a plurality of pixel circuits each including a storage device, a drive transistor, and a light emitting device. First pixel data is measured from a first pixel circuit through a monitor line. Second pixel data from the first pixel circuit or a second pixel circuit is measured through the monitor line or another monitor line. The first measured pixel data or the second measured pixel data or both are used to clean the other of the first measured pixel data or the second measured pixel data of common unwanted signals to produce cleaned data for parameter extraction from the first pixel and/or second pixel.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: January 16, 2024
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 11874541
    Abstract: A switchable privacy display comprises an emissive SLM, a parallax barrier, a switchable LC retarder, and passive retarders arranged between parallel output polarisers. In privacy mode, on-axis light from the SLM is directed without loss, whereas the parallax barrier and retarder layers cooperate to increase the VSL to off-axis snoopers. The display may be rotated to achieve privacy operation in landscape and portrait orientations. In public mode, the LC retardance is adjusted so that off-axis luminance is increased so that the image visibility is increased for multiple users. The display may also switch between day-time and night-time operation, for example for use in an automotive environment. A low reflectivity emissive display for use in ambient illumination comprises a SLM with emissive pixels, an absorptive parallax barrier and a high spectral leakage optical isolator. Head-on light from the pixels is directed with increased transmission efficiency while ambient light is strongly absorbed.
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: January 16, 2024
    Assignee: RealD Spark, LLC
    Inventors: Graham J. Woodgate, Michael G. Robinson, Jonathan Harrold, Robert A. Ramsey
  • Patent number: 11838064
    Abstract: A method for controlling display and related products are provided. During outputting sound through a speaker of an electronic device, if an operating frequency of the speaker for playing the obtained first audio data is within an interference range of a first MIPI operating frequency of the MIPI of the display screen, and a percentage of interfered audio in the first audio data is greater than a first threshold, the first MIPI operating frequency of the MIPI of the display screen is adjusted to a target frequency such that a percentage of audio to be interfered in the first audio data is less than a second threshold, where second threshold is less than the first threshold.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 5, 2023
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Kai Tang, Zhengpeng Tan, Yun Chen, Lizhong Wang, Hai Yang
  • Patent number: 11837168
    Abstract: A light emitting display device includes a display panel for displaying an image, a driver for driving the display panel, and a temperature detector connected to anodes of organic light emitting diodes included in at least two sub-pixels positioned in the display panel, wherein the temperature detector detects at least two voltage values from the at least two sub-pixels and calculates a temperature measurement value for measuring a temperature of the display panel based on a difference between the at least two voltage values.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: December 5, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Gwang Beom Heo, Dong Ho Choi
  • Patent number: 11756488
    Abstract: A display device includes an oscillator which generates a reference clock signal having a frequency corresponding to frequency information provided from an external device, a register which stores a signal parameter for the reference clock signal, and the signal parameter indicates the number of pulses of the reference clock signal included in one horizontal time, a data driver which applies data signals to data lines connected to pixels based on the one horizontal time, and a controller which changes the signal parameter based on a change in the frequency of the reference clock signal in a way such that the one horizontal time is maintained substantially constant.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: September 12, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Kuk Kim, Deok Jun Choi, Ji Hyun Kim
  • Patent number: 11741878
    Abstract: A display device includes a plurality of pixels, a power supply, a voltmeter, and a timing controller. The power supply is configured to generate an initialization voltage to be supplied to a sensing pixel among the pixels. The voltmeter is configured to measure a first value of the initialization voltage supplied to the sensing pixel during an active period of a frame period and a second value of the initialization voltage supplied to the sensing pixel during a vertical blank period of the frame period. The timing controller is configured to generate rewrite image data that is supplied to the sensing pixel during the vertical blank period. The rewrite image data is generated from image data applied to the pixels during the active period and a difference between the first and second values.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Taek Kim, Jae Woo Ryu, Joon Suk Baik, Se Keun Lee
  • Patent number: 11740739
    Abstract: An electronic device using a novel optical module is provided. The optical module includes a first light-emitting element, an optical conversion element, and a first light-receiving element. The first light-emitting element includes a plurality of fluorescent substances and a light-emitting diode. The optical conversion element includes a first optical filter. The light-emitting diode emits first light, and the fluorescent substances can emit second light by being excited by the first light. The first optical filter can form third light having a wavelength range longer than 680 nm from the second light. The first light-receiving element has the function of detecting the third light, and the first light-receiving element functions as a sensor detecting the existence of a shielding object on a light path connecting the first light-emitting element and the first light-receiving element. Furthermore, the second light formed by the optical module can function as a light source of the display device.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: August 29, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Takahiro Fukutome, Hidenori Mori, Hironori Matsumoto
  • Patent number: 11694598
    Abstract: Disclosed are a display driving circuit and a frequency correction method of the display driving circuit, capable of quickly correcting a frequency change of a clock signal when a display device is driven at a low scan rate.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: July 4, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventor: Hyeong Seok Kim
  • Patent number: 11681359
    Abstract: Disclosed is an imaging directional backlight including an array of light sources, and a control system arranged to provide variable distribution of luminous fluxes, scaled inversely by the width associated with the respective light sources in the lateral direction, across the array of light sources. The luminous intensity distribution of output optical windows may be controlled to provide desirable luminance distributions in the window plane of an autostereoscopic display, a directional display operating in wide angle 2D mode, privacy mode and low power consumption mode. Image quality may be improved and power consumption reduced.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: June 20, 2023
    Assignee: RealD Spark, LLC
    Inventors: Graham J Woodgate, Michael G. Robinson, Jonathan Harrold
  • Patent number: 11657745
    Abstract: A curved and flat combined display device includes a display panel having a flat area and a curved area, a compensation value generator configured to compare curved area data of an image data input from an external system with curved area data of imaged data generated by capturing the display panel, and generate compensation value data for the curved area of the display panel, based on the comparing result, and a controller configured to compensate for the curved area data of the image data input from the external system based on the compensation value data, and control the display panel to display the compensated curved area data of the image data.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: May 23, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seungmin Baek, Seungsoo Choi, Sanghoon Park
  • Patent number: 11651740
    Abstract: A display device may include: a display panel with subpixels connected respectively to scan lines, sensing lines, and data lines; a gate driver configured to supply a scan signal to the scan lines during an active period and to supply a sensing signal to the sensing lines during a sensing period of a blank period; a data driver configured to supply a data voltage to the data lines; and a timing controller configured to control the gate and data drivers. The timing controller may determine the active period, blank period, and sensing period to be, respectively: a first active period, a first blank period, and a first sensing period for operating at the first frame rate; and a second active period, a second blank period, and a second sensing period for operating at the second frame rate. The first sensing period and the second sensing period have a same length.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: May 16, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Minsu Kim, Ahram Nam, Donghoon Kim
  • Patent number: 11646574
    Abstract: A driving circuit includes at least one first module, an electrostatic charge/discharge module connected to the first module and a grounding module; each first module includes a driving module, a signal transmission module and a gating module; the signal transmission module is connected to and transmits a driving signal to the driving module; the grounding module is grounded; the gating module is connected with the signal transmission module; the gating module is turned on with its turn-on voltage less than or equal to a voltage of the signal transmission module, or turned off with the turn-on voltage greater than the voltage of the signal transmission module; the turn-on voltage of the gating module is greater than that of the driving module; the charge/discharge module is connected to the gating module and the grounding module, and configured to store charges flowing therethrough and release the charges to the grounding module.
    Type: Grant
    Filed: December 19, 2021
    Date of Patent: May 9, 2023
    Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Longgan Hu, Shanshan Yang, Wenchao Wang, Xiaolong Chen
  • Patent number: 11640776
    Abstract: An arcuate display device, including an arcuate display surface, a plurality of display units, an image source, and a controller, is provided. The display units are configured on the arcuate display surface in an array manner, and each of the display units includes a plurality of pixels. The controller is configured to receive a plurality of pixel signals from the image source to generate a plurality of frame signals respectively corresponding to the display units. Each of the frame signals includes the pixel signals, a plurality of first dummy signals, and a plurality of second dummy signals, in which the pixel signals respectively correspond to the pixels. A sum of an amount of the pixel signals, an amount of the first dummy signals, and an amount of the second dummy signals in each of the frame signals is same. A driving method of the arcuate display device is also provided.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: May 2, 2023
    Assignee: AUO Corporation
    Inventors: Yu-Chu Chen, Po Chun Lin, Chun-Hui Huang, Yu-Chi Kang, Yi-Hsiang Hu, Wei-Ting Chen
  • Patent number: 11587503
    Abstract: A method of and a display control device for emulating OLED degradation for an OLED display panel are proposed, where the OLED display panel includes pixels, and each of the pixels includes subpixels. The method includes the following steps. A current image signal is received. A driving signal level for each of the subpixels is determined based on the current image signal. An actual surface temperature of each of the subpixels is estimated based on the corresponding driving signal level. An accumulated stress of each of the subpixels is computed based on the corresponding driving signal level, the corresponding actual surface temperature, and at least one previous image signal prior to the current image signal. A degradation map that emulates OLED degradation of the OLED display panel is generated based on the accumulated stress of each of the subpixels.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: February 21, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventors: Qiqiang Han, JianHua Liang, YuanJia Du
  • Patent number: 11580917
    Abstract: A light source apparatus includes a plurality of light source gate lines extending in a first direction, a plurality of light source data lines extending in a second direction crossing the first direction, a plurality of light source emission lines, a plurality of feedback lines and a plurality of light source blocks. At least one of the light source blocks is connected to the light source gate line, the light source data line, the light source emission line and the feedback line.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kihyun Pyun, Moonshik Kang, Dae-Sik Lee, Jun Pyo Lee, Min-Soo Choi, Songyi Han
  • Patent number: 11574609
    Abstract: A display device and data driver are provided. The display device includes a plurality of data drivers provided for a predetermined number of data lines in a plurality of data lines. The plurality of data drivers receive the serialized video data signal from the display controller, generate a modulated data timing signal whose period changes within the one frame period, and supply a gradation voltage signal to each of the predetermined number of data lines for each of data periods based on a data timing of the modulated data timing signal, each of data periods corresponding to the data timing of the modulated data timing signal.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: February 7, 2023
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventors: Hiroshi Tsuchi, Koji Higuchi
  • Patent number: 11538415
    Abstract: A clock and voltage generation circuit includes a voltage generator which generates a first gate high voltage, a first gate low voltage, a second gate high voltage, and a second gate low voltage, a first level shifter which generates a first gate clock signal which swings between the first gate high voltage and the first gate low voltage in synchronization with a gate pulse signal, and a second level shifter which generates a second gate clock signal which swings between the second gate high voltage and the second gate low voltage in synchronization with the gate pulse signal. The voltage generator lowers the second gate high voltage to a voltage level of a kickback reference voltage in response to a kickback signal, and the first gate low voltage and the second gate high voltage are gate-on voltages, and the first gate high voltage and the second gate low voltage are gate-off voltages.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: December 27, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byunghyuk Shin, Soyoung Kim, Donghak Pyo
  • Patent number: 11532272
    Abstract: A pixel includes a light-emitting device, a driving TFT for controlling a magnitude of a current from a power line to the light-emitting device according to a gate-source voltage, a storage capacitor disposed between the power line and a gate of the driving TFT, a scan TFT to transfer a data voltage to a source of the driving TFT in response to a first signal, first and second compensation TFTs serially connected between a drain and the gate of the driving TFT, a gate initialization TFT to apply a first voltage to the gate of the driving TFT in response to a second signal, an anode initialization TFT to apply a second voltage to an anode of the light-emitting device in response to a third signal, and a shield capacitor disposed between a node between the first and second compensation TFTs and the power line or a second voltage line.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: December 20, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sunghwan Kim, Eunju Kim
  • Patent number: 11521541
    Abstract: A display device includes a substrate including a display area and a non-display area around the display area; a transistor on the substrate; an insulating layer on the transistor; a power voltage line on the insulating layer and transferring a power voltage; a data line on the insulating layer and transferring a data voltage; and an auxiliary wire between the substrate and the power voltage line in the display area. The auxiliary wire includes a portion overlapping the power voltage line and a portion overlapping the data line in a plan view and is electrically connected to the power voltage line.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: December 6, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun Hyun Park, Dong Woo Kim, An Su Lee, Kang Moon Jo
  • Patent number: 11513628
    Abstract: An electronic device includes: a display panel configured to display an image; an input sensor on the display panel and configured to sense a first input in first and second modes; a sensor controller connected to the input sensor; and an input device configured to transceive a signal with the sensor controller through the input sensor and to provide a second input to the input sensor, wherein the sensor controller is configured to sense the first input through the input sensor during a first input sensing frame and the second input generated by the input device during a second input sensing frame, and wherein the sensor controller is configured to transmit, to the input sensor, an integrated transmission signal comprising a recognition signal for recognizing the input device and a first mode sensing signal for sensing the first input in the first mode during a first operation period of the first input sensing frame.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: November 29, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byeongkyu Jeon, Jinwoo Kim
  • Patent number: 11515340
    Abstract: A display device with high resolution is provided. A display device with high display quality is provided. A display device includes a display portion, a first terminal group, and a second terminal group. The display portion includes pixels, scan lines, and signal lines. The first terminal group and the second terminal group are apart from each other. The first terminal group includes first terminals and the second terminal group includes second terminals. The scan lines are each electrically connected to the pixels arranged in a row direction. The signal lines are each electrically connected to the pixels arranged in a column direction. The signal lines are each electrically connected to the first terminal or the second terminal. The display portion includes a first region where the signal lines electrically connected to the first terminals and the signal lines electrically connected to the second terminals are mixed.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: November 29, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kei Takahashi, Shunpei Yamazaki
  • Patent number: 11508315
    Abstract: An embodiment relates to a pixel sensing circuit and a pixel sensing method and, more particularly, to a pixel sensing circuit and a pixel sensing method for reducing the size of a source driver IC by sharing some components in a pixel sensing circuit and for sensing a pixel using a pixel sensing circuit in which some components are shared.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: November 22, 2022
    Assignee: LX Semicon Co., Ltd.
    Inventors: Young Bok Kim, Won Kim, Young Ho Shin
  • Patent number: 11501679
    Abstract: A driving circuit includes an S stage register, a first connect line, an (S+A) stage register and a second connect line. The S stage register receives an S stage control signal through a first switch unit and a second switch unit, so that the S stage register performs voltage regulation and outputs an S stage scan signal. The first connect line is electrically connected to the first switch unit of the S stage register. A third switch unit of the (S+A) stage register is electrically connected to the first connect line and a fourth switch unit of the (S+A) stage register for receiving the S stage scan signal, so that The (S+A) stage register performs voltage regulation. The second connect line is electrically connected to the second switch unit of the S stage register and the fourth switch unit of the (S+A) stage register.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: November 15, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Li Lin, Che-Wei Tung
  • Patent number: 11475852
    Abstract: A light-emitting device is provided with a drive voltage adjustment circuit configured to adjust a voltage value of a drive voltage for driving a plurality of LEDs, and a feedback wiring line for supplying the drive voltage adjustment circuit with a voltage of a voltage detection target node while taking, as the voltage detection target node, a position before a position where a drive voltage wiring line branches on the LED substrate. In accordance with a difference between a voltage supplied from a drive voltage generation circuit and a voltage supplied from the feedback wiring line, the drive voltage adjustment circuit outputs, as the drive voltage, a voltage higher than the voltage supplied from the drive voltage generation circuit.
    Type: Grant
    Filed: March 2, 2022
    Date of Patent: October 18, 2022
    Assignee: Sharp Display Technology Corporation
    Inventor: Hidekazu Miyata
  • Patent number: 11475857
    Abstract: An array substrate and a display device are provided. The array substrate includes sub-pixels arranged in a first direction and a second direction, gate lines extending in the first direction and data lines extending in the second direction. The data lines include a first data line and a second data line alternately arranged, the first data line and the second data line are respectively configured to transmit voltages of different polarities, and different sub-pixels connected to a same data line are connected to different gate lines. Two adjacent sub-pixels arranged in the first direction are respectively connected to the first data line and the second data line, and one column of sub-pixels extending in the second direction are connected to the first data line, or one column of sub-pixels extending in the second direction are connected to the second data line.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: October 18, 2022
    Assignees: Beijing Boe Display Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Wenjun Xiao, Yang Wang, Shijun Wang, Bo Feng, Xiaoxiao Chen, Bingqing Yang, Wenkai Mu, Zhiying Bao
  • Patent number: 11468817
    Abstract: A display device includes a data driver that outputs a first data signal and a second data signal of different voltages, and a pixel that emits light in response to the first data signal and the second data signal. The pixel includes a current generator generating a driving current corresponding to the first data signal, a first light emitting part including a first electrode, a second electrode, and a first light emitting element, a second light emitting part including a third electrode, a fourth electrode connected, and a second light emitting element, and a current controller controlling a divided current supplied to the second light emitting part in response to the second data signal.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: October 11, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwi Hyun Kim, Sang Yong No, Hwa Rang Lee, Ji Yeon Choi
  • Patent number: 11462161
    Abstract: Methods of compensating for common unwanted signals present in pixel data measurements of a pixel circuit in a display having a plurality of pixel circuits each including a storage device, a drive transistor, and a light emitting device. First pixel data is measured from a first pixel circuit through a monitor line. Second pixel data from the first pixel circuit or a second pixel circuit is measured through the monitor line or another monitor line. The first measured pixel data or the second measured pixel data or both are used to clean the other of the first measured pixel data or the second measured pixel data of common unwanted signals to produce cleaned data for parameter extraction from the first pixel and/or second pixel.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: October 4, 2022
    Assignee: Ignis Innovation Inc.
    Inventor: Gholamreza Chaji
  • Patent number: 11436970
    Abstract: Embodiments relate to a display device that includes a control circuit, an array of light emitting diode (LED) zones, and an array of zone integrated circuits that are distributed in the display area. The zone integrated circuits may comprise integrated a LED, driver circuits, and at least one redundant driver circuit. A non-operational driver circuit is bypassed, and the LED driving responsibility is assumed by the neighboring driver circuit. The neighboring driver circuit may be another one of the driver circuits or the redundant driver circuit.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: September 6, 2022
    Assignee: Huayuan Semiconductor (Shenzhen) Limited Company
    Inventors: Richard Landry Gray, Chih-Chang Wei, Junjie Zheng
  • Patent number: 11428860
    Abstract: A static multiview display and method of static multiview display operation provide a static multiview image using diffractive gratings to diffractively scatter light from guided light beams having different radial directions provided by a horizontal diffuser. The static multiview display includes a light guide configured to guide the light beams; the horizontal diffuser configured to provide the guided light beams with the different radial directions using light from a directional light source; and a plurality of diffraction gratings configured to scatter out light from the guided light beam plurality as directional light beams representing the static multiview image. The method of static display operation includes providing and diffusing directional light to provide guided light beams having different radial directions, and further scattering out light from the guided light beam as directional light beams representing the static multiview image.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: August 30, 2022
    Assignee: LEIA INC.
    Inventor: David A. Fattal
  • Patent number: 11430854
    Abstract: An electronic substrate, a method of manufacturing an electronic substrate, and a display panel are provided. The electronic substrate includes a base substrate, and the base substrate includes a display area and a peripheral area. The electronic substrate further includes sub-pixels and data lines in the display area, and a plurality of signal input pads, a plurality of first detection lines, and a plurality of second detection lines in the peripheral area. The first detection lines and the second detection lines are on a side of the signal input pads away from the display area, and are electrically connected to the signal input pads. The first detection lines are made of a non-metallic conductive material, the second detection lines are made of a metal conductive material, and at least one of the plurality of first detection lines is provided between every two adjacent second detection lines.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: August 30, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunsheng Xiao, Haigang Qing, Xiangdan Dong, Tingliang Liu
  • Patent number: 11404023
    Abstract: A frame rate adjustment method to reduce frame rate jitters in a display process includes: a terminal obtains a computing-access ratio relationship, where the computing-access ratio relationship is used to reflect a ratio between computing tasks and access tasks executed by the terminal; obtains a first working frequency table corresponding to the computing-access ratio relationship, where the first working frequency table includes CPU performance parameters generated when a DDR SDRAM and a CPU work on different working frequency combinations; selects from the first working frequency table based on the CPU performance parameter, a target CPU-DDR SDRAM working frequency combination that meets preset target frame processing duration; and instructs the DDR SDRAM to work on a target DDR SDRAM working frequency in the target CPU-DDR SDRAM working frequency combination, and instructing the CPU to work on a target CPU working frequency in the target CPU-DDR SDRAM working frequency combination.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: August 2, 2022
    Assignee: HUAWEI DEVICE CO., LTD.
    Inventors: Xu Wang, Wei Du, Weilai Zhou, Song Du
  • Patent number: 11375177
    Abstract: The present application provides a light-field display apparatus. The apparatus includes: a display screen, the display screen including N display regions, each display region of the N display regions including M light-emitting points, and light-emitting points at a corresponding position of the N display regions being a light-emitting point group; driving circuits, configured to drive the light-emitting points to emit light; a lens group including at least one lens, the light-emitting points in the N display regions forming view zones corresponding one by one to the N display regions by the lens group, wherein light-emitting points belonging to a same light-emitting point group in the N display regions are driven by a same driving circuit, the N view zones are not overlapped with each other, and both N and M are positive integers greater than 1.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: June 28, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiayao Liu, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Wei Wang, Ming Yang
  • Patent number: 11373597
    Abstract: A display device includes a display panel, a driving circuit, and a power supply. The driving circuit is connected to a plurality of pixels of the display panel through a plurality of scan line sets and a plurality of data lines, provides a plurality of scan signals to the display panel, and provides data voltages to the plurality of data lines. The power supply applies one or more power voltages to the plurality of pixels. The driving circuit enables at least two scan signals of the plurality of scan signals during a non-emission interval, partially overlapping the at least two scan signals during at least two consecutive horizontal periods.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: June 28, 2022
    Inventors: Seong Min Wang, Ji Hye Kong, Yong Ho Yang, Jeong-Soo Lee
  • Patent number: 11355063
    Abstract: A pixel circuit for controlling driving current for a light-emitting element is disclosed. The pixel circuit includes a driving transistor configured to supply driving current to the light-emitting element, a first switching transistor configured to transmit a data signal corresponding to the driving current, a storage capacitor configured to receive the signal from the first switching transistor and store a voltage to be applied to a gate of the driving transistor, a second switching transistor configured to correct the voltage to be stored to the storage capacitor, and a first capacitor including an electrode connected with a drain of the driving transistor and an electrode to be supplied with a predetermined potential.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 7, 2022
    Assignees: TIANMA JAPAN, LTD., WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Genshiro Kawachi
  • Patent number: 11348515
    Abstract: A pixel compensation method, a pixel compensation device and a display device. The pixel compensation method includes: generating, according to grayscale data and compensation value of a sub-pixel in a current detection period, a source voltage signal to control light-emitting brightness of the sub-pixel; generating a sensing value according to the light-emitting brightness of the sub-pixel; and determining a compensation value of the sub-pixel in next detection period, according to the grayscale data, the compensation value, and the sensing value of the sub-pixel in the current detection period.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fei Yang, Mingi Chu
  • Patent number: 11348536
    Abstract: Provided is a detection circuit and a driving method thereof, and a display panel. The detection circuit includes: a plurality of first detection circuits, a plurality of second detection circuits, and a plurality of third detection circuits. The first detection circuit is connected to a first pin, a first control signal terminal, a first detection signal terminal, and a first gate line corresponding to the first detection circuit; the second detection circuit is connected to a second pin, a second control signal terminal, a second detection signal terminal, and a second gate line corresponding to the second detection circuit; the third detection circuit is connected to a first data line corresponding to the third detection circuit, a sensing signal line corresponding to the third detection circuit, a third detection signal terminal, and a third control signal terminal.
    Type: Grant
    Filed: March 7, 2021
    Date of Patent: May 31, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jian Wu, Lei Guo, Guangyu Li, Yingya Zhou
  • Patent number: 11347093
    Abstract: A touch panel includes a first substrate, a liquid crystal layer, a second substrate, a first optical detection layer, and a black matrix. The first optical detection layer is over a light-emitting surface of the liquid crystal layer and includes a plurality of first optical detection components, whose orthographic projections on the first substrate are within an orthographic projection of the black matrix. A touch control can be determined based on a change of a first electric signal converted by each first optical detection component based on an intensity of a light transmitting through the liquid crystal layer. The light can be an infrared light. A plurality of second optical detection components can be further disposed over a light-incident surface of the liquid crystal layer to pairingly correspond to, and utilized to determine a touch control along with, the plurality of first optical detection components.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 31, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Huan Ni, Xiao Guo, Qun Li, Xiaolong Xie, Xinxia Zhang, Fengzhen Lv
  • Patent number: 11341920
    Abstract: A pixel circuit, a driving method thereof and electronic device, relates to the technical field of display configured for. The pixel circuit comprises a driving sub-circuit comprising a control terminal, a first terminal and a second terminal, the driving sub-circuit being configured to control a driving signal flowing through the first terminal and the second terminal according to a signal of the control terminal; a voltage division control sub-circuit configured to conduct voltage division on an input data signal in response to a first scanning signal to obtain a voltage division signal, and write the voltage division signal to the first terminal of the driving sub-circuit; and a compensation sub-circuit coupled to the control terminal of the driving sub-circuit and the second terminal of the driving sub-circuit, and configured to write voltage division signal passing through driving sub-circuit to control terminal of driving sub-circuit in response to first scanning signal.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: May 24, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Dongni Liu, Haoliang Zheng, Minghua Xuan
  • Patent number: 11329071
    Abstract: A display device with high resolution is provided. A display device with high display quality is provided. A display device includes a display portion, a first terminal group, and a second terminal group. The display portion includes pixels, scan lines, and signal lines. The first terminal group and the second terminal group are apart from each other. The first terminal group includes first terminals and the second terminal group includes second terminals. The scan lines are each electrically connected to the pixels arranged in a row direction. The signal lines are each electrically connected to the pixels arranged in a column direction. The signal lines are each electrically connected to the first terminal or the second terminal. The display portion includes a first region where the signal lines electrically connected to the first terminals and the signal lines electrically connected to the second terminals are mixed.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: May 10, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kei Takahashi, Shunpei Yamazaki
  • Patent number: 11328665
    Abstract: A pixel including: a light-emitting diode; a first PMOS transistor including a first electrode connected to a node and a second electrode transmitting a driving current to the light-emitting diode; a second transistor connected between a data line and the node and turned on by a first scan signal; a third NMOS transistor connected between a gate electrode and the second electrode of the first transistor and turned on by a first emission control signal; a fourth NMOS transistor connected between the gate electrode of the first transistor and a first initialization voltage line and turned on by a second emission control signal; a fifth transistor connected between a driving voltage line and the node and turned on by the first emission control signal; and a sixth transistor connected between the second electrode of the first transistor and the light-emitting diode and turned on by the first emission control signal.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: May 10, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeongsoo Lee, Kyunghyun Baek, Sewan Son, Yoonjong Cho, Moosoon Ko, Yeonha Baek, Seokje Seong, Jinsung An, Inhyuck Yeo, Seongjun Lee, Jaehyun Lee
  • Patent number: 11322108
    Abstract: A gate driver of array (GOA) circuit includes a plurality of cascaded GOA units, wherein an N-th GOA unit includes a scan control circuit, a reverse circuit, a gate signal output circuit, and a potential holding circuit. The reverse circuit is coupled to the scan control circuit. The gate signal output circuit is coupled to an Nth clock signal, the scan control circuit, and the reverse circuit. The potential holding circuit is coupled to the scan control circuit, the reverse circuit, and the gate signal output circuit.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: May 3, 2022
    Assignee: Wuhan China Star Optoelectronies Technology Co., Ltd.
    Inventor: Jian Tao
  • Patent number: 11308905
    Abstract: A liquid crystal display device includes a liquid crystal display panel including a plurality of pixels, and a control circuit configured to generate a source signal voltage supplied to each pixel. The liquid crystal display panel includes an active matrix substrate including a pixel electrode applied with a source signal voltage and a common electrode applied with a common voltage. The common voltage and the source signal voltage corresponding to each gradation are set such that a source-common center difference at least one of lowest and highest gradation levels is greater than the source-common center difference at least some of the other gradation levels. A degree of symmetry of a gradation level voltage is equal to or lower than 95% at least at one of gradation levels equal to or lower than a 127/255-th gradation level except for the lowest gradation level.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: April 19, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshimasa Yagi, Masatoshi Itoh, Shogo Nishiwaki, Hisashi Nagata
  • Patent number: 11308918
    Abstract: Particular embodiments described herein provide for an electronic device that includes a display panel. The display panel includes a timing controller (TCON) and a synchronization engine. The TCON can generate a video stream of video frames with a frame rate and the synchronization engine is configured to change the frame rate of the video stream by adding vertical blanking lines to or removing vertical blanking lines from video frames in the video stream.
    Type: Grant
    Filed: June 27, 2020
    Date of Patent: April 19, 2022
    Assignee: Intel Corporation
    Inventors: Douglas Robert Huard, Paul S. Diefenbaugh, Vishal R. Sinha