Patents Examined by Dorothy Harris
  • Patent number: 11688343
    Abstract: In a pixel driving circuit, a compensation sub-circuit is respectively coupled to a first control terminal, a control terminal and a second terminal of the driving sub-circuit; a first terminal of the first coupling sub-circuit is coupled to the control terminal of the driving sub-circuit; a first terminal of the second coupling sub-circuit is coupled to a second terminal of the first coupling sub-circuit; a first reset sub-circuit is respectively coupled to a second control terminal, the control terminal of the driving sub-circuit and an initialization signal output terminal; a second reset sub-circuit is respectively coupled to a third control terminal, a second terminal of the first coupling sub-circuit and the first level signal output terminal; a first light emitting control sub-circuit is respectively coupled to a light emitting control terminal, a second terminal of the second coupling sub-circuit and a reference signal output terminal.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: June 27, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Can Zheng, Jianchao Zhu, Lujiang Huangfu, Libin Liu, Shiming Shi
  • Patent number: 11682350
    Abstract: According to one exemplary embodiment of the present disclosure, the electroluminescent display panel may include a plurality of pixels arranged along a row direction and a column direction, an emission line transmitting an emission signal to the plurality of pixels arranged along the row direction and an emission driving circuit providing an emission signal to the plurality of pixels. The emission driving circuit includes a plurality of emission stages wherein the number of emission stages is more than the number of the plurality of pixels arranged along the column direction. Therefore, the pulse width resolution of the display panel may be enhanced and the low gradation stain may be reduced.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: June 20, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jaesung Yu, Jungsoo Park, Sewan Lee
  • Patent number: 11676537
    Abstract: Provided is a pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit includes: driving transistor having gate electrode connected to first node, first electrode connected to second node, and second electrode electrically connected to third node coupled to light emitting element; storage capacitor connected to the first node; and M first transistors having M first and second electrodes connected to the first node M functional signal terminals, respectively, M?1. A driving cycle of the pixel driving circuit includes light-emitting stage and N non-light-emitting stages, N?M. The M first transistors are respectively turned on in the N non-light-emitting stages, and the M first transistors are all turned off in the light-emitting stage. One of the N non-light-emitting stages includes first non-light-emitting stage adjacent to the light-emitting stage.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: June 13, 2023
    Assignees: WUHAN TIANMA MICROELECTRONICS CO., LTD., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventors: Mengmeng Zhang, Xingyao Zhou, Yue Li, Jian Kuang, Yuantao Wu
  • Patent number: 11676520
    Abstract: The present disclosure relates to a technology for a power management device applied to a display device, in which driving voltages having different levels are supplied to driving devices having different sizes of load in different times, and this allows all of the driving devices to stably receive voltages within a limited range even though the number of driving devices increases according to the enlargement of a display panel.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: June 13, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Geon Soo Jang, Hyung Sub Kim, Jung Hyun Tark
  • Patent number: 11670213
    Abstract: A display panel includes: a plurality of light emitting signal lines. Under a control of switching signals provided from a plurality of switching signal lines and control signals provided from a plurality of control signal lines, working gray scale level signals corresponding to respective display gray scales are written to corresponding sub-pixels in an order from small to large in working gray scale sequentially by a plurality of times in one frame display time through the plurality of light emitting signal lines. Different working gray scale level signals indicate have different durations, and each of the working gray scale level signals is provided to the organic light emitting diode via the second transistor through a light emitting signal line, and a final display gray scale is a gray scale caused by superimposing different working gray scale level signals.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: June 6, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Yuan, Can Zhang, Ning Cong, Can Wang, Jinfei Niu, Minghua Xuan
  • Patent number: 11670220
    Abstract: A pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and can adjust an electric potential of the second control node based on an electric potential of the second connection node. A method for driving a pixel circuit, a display substrate, and a display device is also provided.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: June 6, 2023
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Cong, Minghua Xuan, Can Zhang, Ming Yang, Can Wang, Lijun Yuan
  • Patent number: 11670391
    Abstract: A shift register includes: an input circuit transmitting a first signal to a first node in response to a first clock signal and a second signal, transmitting the second signal to the first node in response to the first clock signal and the first signal; a first control circuit transmitting the first clock signal to a second node in response to the first node, transmitting a first voltage to the second node in response to the first clock signal; a second control circuit transmitting a second voltage to a third node in response to the first node, transmitting a second clock signal to the third node in response to the second node and the second clock signal; an output circuit transmitting the first voltage to a signal output terminal in response to the first node, transmitting the second voltage to the signal output terminal in response to the third node.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: June 6, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Wang, Guangliang Shang
  • Patent number: 11662856
    Abstract: Examples are disclosed relating to computing devices and methods for performing capacitive touch detection in rotatably coupled displays. In one example, a method comprises: in a first display, providing a first signal at a first frequency to a first drive electrode in a first frequency region abutting a first non-coupled side opposite to a first coupled side. Other signals at other frequencies are provided to other drive electrodes in other frequency regions. In a second display, a second signal at the first frequency is provided to a second drive electrode located in a different first frequency region abutting a second coupled side opposite to a second non-coupled side. The other frequency regions of the first display are positioned between the first frequency region and the different first frequency region, thereby spatially separating the first frequency region from the different first frequency region.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: May 30, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gilad Pundak, Zvika Zmiri, Anton Gorbanev, Matan Slassi, Dmitry Birenberg
  • Patent number: 11657748
    Abstract: A display control method includes: in response to a display area of a display device being divided into multiple display sub-areas, controlling outputs from the multiple display sub-areas at corresponding refresh rates. The refresh rates of different display sub-areas can be the same or different.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: May 23, 2023
    Assignee: LENOVO (BEIJING) CO., LTD.
    Inventor: Zhengliu Lu
  • Patent number: 11650703
    Abstract: An object of the present invention is to provide a technique for providing a detection function of detecting that an external approaching object approaches a sensor region of a touch sensor, without increasing an area of the touch sensor and making a circuit complex. According to an aspect, a display device includes a first detection electrode that detects a position of an external approaching object within a detection surface, and plural second detection electrodes that detect that the external approaching object approaches the detection surface. The second detection electrodes extend in a second direction and are arranged in a first direction intersecting the second direction. The second detection electrodes overlap the first detection electrode in a plan view.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 16, 2023
    Assignee: Japan Display Inc.
    Inventors: Takaaki Kono, Yoshio Owaki, Makoto Hayashi, Hiroyuki Miyake
  • Patent number: 11636793
    Abstract: Embodiments of the present disclosure provide a method of driving display, and a display device. The method of driving display includes: scanning, progressively or rows by rows, a plurality of sub-pixels arranged in an N×M array, to turn on each row of sub-pixels scanned, so that a duration in which two adjacent rows of sub-pixels are simultaneously in an ON state is greater than or equal to two times a unit scanning time, wherein the unit scanning time is a time required for scanning a row of sub-pixels, N is an integer greater than 1, and M is an integer greater than 1; and applying data signals to at least two rows of sub-pixels simultaneously in the ON state, so that a duration of applying the data signals to each row of sub-pixels is greater than the unit scanning time.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: April 25, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhihua Sun, Yinlong Zhang, Qiujie Su, Feng Qu, Jing Liu, Yanping Liao, Xibin Shao
  • Patent number: 11620944
    Abstract: The present invention relates to an organic light emitting diode display device which minimizes a temperature increase of an organic light emitting panel in consideration of an input image and an external environment, the organic light emitting diode display device comprising: an organic light emitting panel; a power supply unit for supplying a current to the organic light emitting panel; a control unit for performing an automatic current limit for controlling the maximum value of the current supplied to the organic light emitting panel to be less than or equal to the current limit value; and a temperature sensor for sensing the temperature of the organic light emitting panel, wherein the control unit may change the current limit value according to the present temperature of the organic light emitting panel.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: April 4, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Seungkyu Park, Youngho Chun
  • Patent number: 11620011
    Abstract: A display driving device capable of operating a source driver integrated circuit (IC) in a low power mode during a touch sensing period includes a source driver IC configured to operate in a first low power mode in which an analog data processing unit is deactivated or operate in a second low power mode in which both of the analog data processing unit and a digital data processing unit are deactivated, during a touch sensing period of a first frame; and a readout IC configured to supply touch sensor driving signals to touch sensors during the touch sensing period and receive touch sensing data from the touch sensors according to the touch sensor driving signals.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: April 4, 2023
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jong Min Park, Seong Sik Yoon, Jung Min Choi
  • Patent number: 11614816
    Abstract: Sensing time of a touch sensor is shortened to increase responsiveness of touch sensing. A display device includes a gate driver, a plurality of touch sensors, and a plurality of touch wirings. The gate driver has a function of supplying a scan signal to the plurality of touch wirings at the same timing, and the touch sensors in different positions sense a plurality of touches at the same timing. In this manner, the responsiveness of touch sensing is increased. The gate driver has a function of controlling a scan signal for refreshing display and a scan signal used by the touch sensor for sensing.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: March 28, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroyuki Miyake, Takahiro Fukutome
  • Patent number: 11614622
    Abstract: The present invention relates to a head-mounted display system (1) for controlling a medical imaging device (20), comprising: a head-mounted display (10) to be worn by an operator, comprising a display (12) configured to display a medical image with a predetermined center of view (121) and a command menu (122) providing at least a first set of commands (123) as distinct first command fields, a tracking system (14) to track a movement representative of the operator's eye (30) and/or head movement, wherein a command of the at least first set of commands (122a) of the command menu (122) is selectable based on the tracked eye and/or head movement, and a control device (40) configured to receive a selected command and to control the medical imaging device (20) accordingly.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: March 28, 2023
    Assignee: BHS Technologies GmbH
    Inventors: Michael Mair, Bernhard Höckner, Luis Fernando Ayuso Perez, Gregor Burger
  • Patent number: 11615727
    Abstract: In an embodiment, an electronic device includes an electronic display. The electronic display provides a programmable latency period in response to receiving a first image frame corresponding to first image frame data. The electronic display also displays the first image frame after the programmable latency period and during display of the first image frame, receives a second image frame corresponding to second image frame data. The electronic display also repeats display of the first image frame in response to receiving the second image frame.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: March 28, 2023
    Assignee: Apple Inc.
    Inventors: Kevin W. Sliech, Jason N. Gomez, David A. Hartley, Chengrui Le, Paolo Sacchetto, Arthur L. Spence
  • Patent number: 11615754
    Abstract: A display device includes: a first pixel transistor couples one electrode of holding capacitance to a first signal line; a second pixel transistor couples another electrode of the holding capacitance to a second signal line; a third pixel transistor couples the other electrode of the holding capacitance to a GND potential; and a driver that supplies a negative potential to the second signal line when the first signal line is supplied with a positive potential, supplies the GND potential to the second signal line when the first signal line is supplied with the GND potential, and supplies the positive potential to the second signal line when the first signal line is supplied with the negative potential. The first and second pixel transistors are on during a writing period and off during a holding period. The third pixel transistor is off during the writing period and on during the holding period.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: March 28, 2023
    Assignee: Japan Display Inc.
    Inventor: Gen Koide
  • Patent number: 11610525
    Abstract: The present invention provides a driving circuit and a display panel including at least two gate driving units, and at least two of the gate driving units are connected in a cascade arrangement. an Nth stage driving unit in the at least two of the gate driving units includes a pull-up control module, a pull-up module, a pull-down module, a pull-down maintaining module, and a bootstrap capacitor, wherein N is an integer greater than 0.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: March 21, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiaowen Lv
  • Patent number: 11605335
    Abstract: A pixel includes a switching transistor transmitting a data voltage to a first node, a storage capacitor electrically connected between a first power supply line and the first node and storing the data voltage, first and second driving transistors electrically connected to the first power supply line, the first node, and a second node, and first and second light emitting elements electrically connected between the second node and a second power supply line. An anode of the first light emitting element and a cathode of the second light emitting element are electrically connected to the second node, a cathode of the first light emitting element and an anode of the second light emitting element are electrically connected to the second power supply line, the first driving transistor is a P-type transistor, and the second driving transistor is an N-type transistor.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyojin Lee, Sehyuk Park, Hui Nam
  • Patent number: 11600229
    Abstract: A pixel includes a first capacitor connected between a first electrode and a second electrode connected to a first node, a first transistor including a gate electrode connected to the first node, a first electrode connected to a second node, and a second electrode connected to a third node, a second transistor including a gate electrode that receives a data write gate signal, a first electrode that receives a data voltage, and a second electrode connected to the second node, a third transistor connected between the first node and the third node, a fourth transistor connected between the first node and an initialization voltage input terminal to which an initialization voltage is applied, an eighth transistor t connected to the third transistor and the fourth transistor, and an organic light emitting diode including an anode and a cathode receiving a second power supply voltage.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: March 7, 2023
    Inventors: Hanbit Kim, Meejae Kang, Keunwoo Kim, Doo-Na Kim, Sangsub Kim, Dokyeong Lee, Jaehwan Chu