Patents Examined by Van N Chow
  • Patent number: 11508307
    Abstract: A display device that can correct the threshold voltage of a driving transistor without a correction of image data is provided. A display device including a pixel provided with a driving transistor, a display element, and a memory circuit and a correction data generation circuit is related. One of a source and a drain of the driving transistor is electrically connected to one electrode of the display element, and a gate of the driving transistor is electrically connected to the memory circuit. In a first period, the correction data generation circuit generates correction data that is data for correcting the threshold voltage of the driving transistor. In a second period, first data is written to the memory circuit. In a third period, second data is supplied to the pixel, whereby third data in which the second data is added to the first data is generated. In a fourth period, an image corresponding to the third data is displayed by the display element.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: November 22, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kei Takahashi, Koji Kusunoki, Kouhei Toyotaka, Susumu Kawashima, Kazunori Watanabe
  • Patent number: 11508295
    Abstract: An array substrate and a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate, and a GOA circuit, a source electrode IC and PLG wires arranged on the base substrate, and the PLG wires connect the GOA circuit with the source electrode IC. The GOA circuit transmits a GOA signal, and the GOA signal comprises a cascade signal and a non-cascade signal. The PLG wires comprise a first PLG wire group and at least one second PLG wire group, the first PLG wire group transmits the cascade signal, the second PLG wire group transmits the non-cascade signal, a line width of the first PLG wire group is smaller than that of the second PLG wire group, and the first PLG wire group is located at a side of the second PLG wire group distal to an active area of the base substrate.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: November 22, 2022
    Assignees: Hefei BOE Joint Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Zhongyuan Wu, Yongqian Li, Can Yuan, Xuehuan Feng, Zhidong Yuan
  • Patent number: 11508311
    Abstract: An electronic device includes a display including a first display area and a second display area. The electronic device further includes a main controller configured to send a first clock signal separately to a first display driver circuit and a second display driver circuit. The first display driver circuit is configured to receive the first clock signal and to output a first GOA clock signal to the display. The first GOA clock signal is generated based on the first clock signal. The second display driver circuit is configured to receive the first clock signal, and is further configured to output a second GOA clock signal to the display. The second GOA clock signal is generated based on the first clock signal.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: November 22, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Dustin Yuk Lun Wai, Chun Yen Liu
  • Patent number: 11500489
    Abstract: This disclosure provides a flexible circuit board and a manufacturing method therefor, and a display device. The flexible circuit board includes a main body sub-circuit board and a bridge sub-circuit board; The main body sub-circuit board includes a first substrate, as well as a first bridge connection end, a second bridge connection end, a first wiring portion, and a second wiring portion disposed on the first substrate The bridge sub-circuit board includes a second substrate, as well as a third bridge connection end, a fourth bridge connection end, and a third wiring portion used for a first functional wiring, all disposed on the second substrate.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 15, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Ren Xiong, Qiang Tang, Huiqiang Song
  • Patent number: 11501459
    Abstract: Provided is an information processing apparatus including a determination unit that determines an input state of a user based on a captured image of a first imaging device and a sensor controller that determines an imaging position at which an input image is captured by a second imaging device different from the first imaging device, based on a positional relation between an input-related object related to input by the user and each of a plurality of imaging position candidates and the input state.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: November 15, 2022
    Assignee: SONY CORPORATION
    Inventors: Takuya Ikeda, Kentaro Ida, Yuri Kusakabe
  • Patent number: 11488505
    Abstract: An embodiment is disclosed that makes it possible to reduce the area of a digital-to-analog converter circuit by interpolating one reference voltage and generating a plurality of gamma voltages.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: November 1, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Taiming Piao, Young Bok Kim, Young Tae Kim, Won Kim
  • Patent number: 11482169
    Abstract: An information handling system organic light emitting diode (OLED) display adapts presentation of visual information to manage a display thermal state, such as to maintain a uniform thermal condition. In one example embodiment, a first display zone of plural pixels presents visual images with a first refresh rate, such as the nominal refresh rate established by the display settings, and a second display zone presents visual images with a partial pixel refresh rate that reduces power dissipation and, thus, thermal energy release so that a more uniform thermal state may be achieved at the display.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: October 25, 2022
    Assignee: Dell Products L.P.
    Inventors: Jong Seo Lee, Deeder M. Aurongzeb, Asim M. Siddiqui
  • Patent number: 11475858
    Abstract: The disclosure discloses a driving method and a circuit of a display panel and a display device. The driving method includes the following steps: acquiring image data of a screen to be displayed; acquiring a voltage polarity corresponding to each row of image data in the image data, in responding to a determination that the image data of the screen to be displayed are image data of a heavy-load screen; sorting rows of image data according to voltage polarities and generating sorting labels; compensating image data voltage of a corresponding row according to the sorting labels; scanning gate lines of the display panel in sequence according to the sorting labels; and outputting compensated image data of the corresponding row to a corresponding data line of the display panel to display the screen to be displayed.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: October 18, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventors: Wenqin Zhao, Haijiang Yuan, Yubo Gu
  • Patent number: 11476280
    Abstract: To provide a display device including a flexible panel that can be handled without seriously damaging a driver circuit or a connecting portion between circuits. The display device includes a bent portion obtained by bending an element substrate. A circuit for driving the display device is provided in the bent portion and a wiring extends from the circuit, whereby the strength of a portion including the circuit for driving the display device is increased and failure of the circuit is reduced. Furthermore, the element substrate is bent in a connecting portion between an external terminal electrode and an external connecting wiring (FPC) so that the element substrate provided with the external terminal electrode fits the external connecting wiring, whereby the strength of the connecting portion is increased.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: October 18, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Atsushi Miyaguchi
  • Patent number: 11468863
    Abstract: A gate driving circuit includes a bootstrapping circuit, a pre-charge circuit, and an output control circuit. The bootstrapping circuit is composed of a bootstrapping capacitor and a transistor. A first terminal of the bootstrapping capacitor has a first voltage during a first duration. The pre-charge circuit is connected to the first terminal of the bootstrapping capacitor. The pre-charge circuit boosts the first terminal of the bootstrapping capacitor from the first voltage to a second voltage during a second duration. The bootstrapping circuit boosts the first terminal of the bootstrapping capacitor from the second voltage to a third voltage during a third duration. The output control circuit is connected to the first terminal of the bootstrapping capacitor. The output control circuit boosts the first terminal of the bootstrapping capacitor from the third voltage to a fourth voltage during a fourth duration.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: October 11, 2022
    Assignees: Interface Technology (ChengDu) Co., Ltd., Interface Optoelectronics (ShenZhen) Co., Ltd., Interface Optoelectronics (Wuxi) Co., Ltd., General Interface Solution Limited
    Inventors: Po-Lun Chen, Chun-Ta Chen, Chih-Lin Liao, Fu-Cheng Wei, Po-Tsun Liu, Guang-Ting Zheng, Ping-Hung Hsieh
  • Patent number: 11468842
    Abstract: A pixel circuit for a display device minimizes the one horizontal time while maintaining accurate compensation of the threshold voltage of the drive transistor, by extending the compensation phase beyond the data programming phase. The pixel circuit includes a drive transistor configured to control an amount of current to a light-emitting device during an emission phase and a storage capacitor connected between the gate of the drive transistor and the light-emitting device for compensating a threshold voltage of the drive transistor. During a combined data programming and threshold compensation phase, data is programmed and the threshold voltage of the drive transistor is partially compensated, with the data voltage being stored by the internal capacitance of the light-emitting device. The data voltage remains stored during an extended compensation phase in which the drive transistor is further compensated.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: October 11, 2022
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Adnan Heganovic
  • Patent number: 11468862
    Abstract: A drive circuit for a display apparatus includes: a switching module, including a first input end, a second input end, a control end, and an output end, where the first input end obtains a first signal, the second input end obtains a second signal, the output end is connected to a pixel electrode, the control end obtains a control signal, the switching module selectively outputs the first signal and the second signal to the output end according to a level change of the control signal; and a controller, connected to the control end, and including a first end and a second end, where the first end obtains a first input signal, the second end obtains a second input signal, and the controller outputs the first input signal according to a period change of the second input signal, to serve as the control signal.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 11, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Xiaoyu Huang
  • Patent number: 11455939
    Abstract: An interface circuit generates a timing signal indicating the timing at which to switch between a data input period and a non-input period, and outputs a second start pulse signal obtained by delaying a first start pulse signal. Anomaly detection circuits detect an anomaly that has occurred in source drivers, and a detection result selection circuit selects one of the anomaly detection circuits during the non-input period and outputs a detection result signal indicating detection results. A selector selectively outputs the second start pulse signal or the detection result signal on the basis of the timing signal.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: September 27, 2022
    Assignee: LAPIS TECHNOLOGY CO., LTD.
    Inventor: Yukinobu Watanabe
  • Patent number: 11430400
    Abstract: The present application discloses a display panel, a driving method and a display device. The display panel includes: a substrate, where the substrate is provided thereon with a plurality of data lines, a plurality of gate lines, and a plurality of pixels; each row of pixels includes a plurality of pixel groups, and each pixel group includes a first column of pixels and a second column of pixels; and a timing control chip configured to control the turn-on time of gate activating signals of the first column of pixels and the second column of pixels. The turn-on time of the gate activating signal of the first column of pixels is greater than the turn-on time of the gate activating signal of the corresponding second column of pixels.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: August 30, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Chuan Wu
  • Patent number: 11416200
    Abstract: The disclosure relates to a display method and a display system. The display method includes: connecting a plurality of display devices in series with each other, the plurality of display devices including a main display device and at least one slave display device, the main display device having EDID; setting the connection order of the display device; correspondingly changing the EDID of the main display device according to the connection order of the display device; configuring the main display device to receive the display image according to the changed EDID; and configuring the display device to perform an image segmentation operation on the display image according to the connection order to respectively display multiple segmented regions of the display image.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: August 16, 2022
    Assignee: Optoma Corporation
    Inventors: Wei-Wei Yin, Jui-Chi Chen, Yen-Hsiang Hung
  • Patent number: 11410590
    Abstract: A display panel and a display device are provided. The display panel includes a driving circuit including N-level shift registers cascaded with each other, where N is greater than or equal to two. A shift register includes a first control unit configured to receive an input signal, and control a signal of a first node; a second control unit configured to receive a first voltage signal and a second voltage signal, and control a signal of a second node; a third control unit configured to receive the first voltage signal and the second voltage signal, and control a signal of a fourth node; and a fourth control unit configured to receive a third voltage signal and a fourth voltage signal, and generate an output signal. The first and third voltage signals are high-level signals, and the second and fourth voltage signals are low-level signals.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: August 9, 2022
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Qingjun Lai, Yihua Zhu
  • Patent number: 11398199
    Abstract: A liquid crystal display device, a driving system thereof, and a driving method thereof are provided. A driving method includes: receiving display data of a next frame of image; determining whether the next frame of image includes a specific graph according to the gray scale information of each pixel; if the next frame of image includes the specific graph, determining information to be compensated according to positions of the first pixel section and the second pixel section, a quantity of the first pixels or a quantity of the second pixels and the difference value between the first gray scale and the second gray scale, where the information to be compensated includes a position of an area to be compensated and a compensation level of the area to be compensated; and generating a compensated driving voltage according to the position of the area to be compensated.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 26, 2022
    Assignees: Wuhan BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Lijun Xiao, Feng Jiang, Mengchao Shuai, Junmin Zhang, Hangyu Chen, Meng Feng, Jianmin Xiang, Bing Li
  • Patent number: 11397490
    Abstract: In a memory liquid crystal display including a liquid crystal panel with a built-in touch panel, a black voltage or a white voltage is provided to a pixel electrode in accordance with a value of binary data stored in a memory circuit, and a display voltage generation circuit changes voltage values of the black voltage and the white voltage in synchronization with a continuous pulse voltage for touch detection in a touch detection period so that an absolute value of a voltage between the pixel electrode and a common electrode is maintained at a constant magnitude in each pixel circuit throughout a period from a point in time immediately before the start of the touch detection period to a point in time immediately after the end of the touch detection period.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: July 26, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Daiji Kitagawa, Noriyuki Tanaka, Jin Miyazawa, Yousuke Nakamura, Daisuke Suehiro
  • Patent number: 11393420
    Abstract: A display device, a pixel circuit and its driving method and driving device. The driving method includes the steps of, during a frame sequence formed by successive X frames of image displaying, outputting gate signals and data signals to the pixel circuit in a first preset mode; during a frame sequence formed by successive Y frames and adjacent to the frame sequence formed by successive X frames of image displaying, outputting gate signals and data signals to the pixel circuit in a second preset mode, wherein the first preset mode is different from the second preset mode, and X and Y are positive integers not less than 2. The method can enable the charging time of the pixel circuit to be balanced in space, thereby improving image display quality.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: July 19, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Li, Dayu Zhang, Yifei Zhan, Xiaohan Ling
  • Patent number: 11386844
    Abstract: A display device includes: a plurality of pixels, where each of the pixels includes a light emitting device and a pixel circuit coupled to the light emitting device; a scan driver which supplies a scan signal to the pixel circuit; a data driver which supplies a data signal to the pixel circuit; a power supply which supplies a voltage to the pixel circuit; a timing controller which controls the scan driver; a first signal generator which provides a first clock signal to the timing controller; and a second signal generator which provides a second clock signal to the timing controller.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hyeon Jeon, Joon Chul Goh, Jin Wook Yang, Ki Hong Song