Patents Examined by Gerald Johnson
  • Patent number: 11367372
    Abstract: A method of calibrating a boost circuit includes: resetting a load to a reference voltage; supplying a charging voltage to the load through a boost circuit for a driving time such that charge sharing is performed in the load; comparing a voltage of the load after the charge sharing with a target voltage; and adjusting a duration of the driving time according to a result of the comparing.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: June 21, 2022
    Assignee: Anapass Inc.
    Inventors: Joon Bae Park, Jun Young Jang, Hyun Seung Lee, Dong Joon Lee
  • Patent number: 11361695
    Abstract: A gate-driver-on-array type display panel having a display area includes a plurality of pixel units and a GOA circuit, wherein the pixel units and the GOA circuit are disposed in the display area. The GOA unit set and the GOA trace set are respectively disposed in the pixel units that are in two adjacent rows, and the GOA trace set is electrically connected to two ends of the GOA unit set through a plurality of first signal connecting traces.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: June 14, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jing Zhu, Wei Shao
  • Patent number: 11348504
    Abstract: A display apparatus includes a display panel; and a display driver integrated circuit (DDI) chip coupled to the display panel, the DDI chip being configured to generate a display driving signal for driving the display panel based on image data. The DDI chip may include: a first embedded memory device embedded in the DDI chip and configured to store compensation data for compensating for electrical and optical characteristics of a plurality of pixels included in the display panel; a timing controller configured to control signals for driving the display panel, and to generate a data control signal based on the image data and the compensation data; and a data driver configured to provide a data voltage to the display panel according to the data control signal. The first embedded memory device may not include static random access memory (SRAM).
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youngmok Kim, Kyunglyong Kang, Jungu Kang, Boyoung Seo, Yongsang Jeong
  • Patent number: 11346934
    Abstract: A method for determining reception window timing using a measuring station receiving an antenna beam width, receiving an antenna tilt angle, receiving an altitude A, determining a far projection angle ?f, determining a near projection angle ?n, and determining a far projection range corresponding to the far projection angle ?f and based at least upon the values of ?f and A. The method further includes determining a near projection range corresponding to the near projection angle ?n and based at least upon the values of ?n and A, determining an end time of a reception window based at least upon the value of the far projection range the reception window being a window of time in which a response from the target station is expected to be received, and determining a start time of the reception window based at least upon the value of the near projection range.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: May 31, 2022
    Assignee: SR Technologies, Inc.
    Inventors: Olivia Desiree Fernandez, Graham K Smith
  • Patent number: 11341887
    Abstract: A display apparatus is disclosed, which comprises a display panel including pixels formed in a pixel area defined by intersection between gate lines and data lines, a data driver sequentially outing data signals per sub horizontal period in one horizontal period and outputting a selection signal including a transistor on period corresponding to the sub horizontal period, and a distributor comprised of transistors connected to each of the data lines and switched in accordance with the selection signal to output the data signals sequentially output from each of a plurality of source channels to the connected data lines, wherein the transistor on period in the selection signal is different from the sub horizontal period.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: May 24, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: YeonWook Kang
  • Patent number: 11341934
    Abstract: An image display system includes a graphic processor which generates an image signal, a control signal, and a variable frequency signal; and a display device which displays an image at a frame frequency corresponding to the variable frequency signal from the graphic processor. The display device includes pixels connected to emission control lines, data lines, and scan lines; a controller which provides reference data including information on reference cycles, which are cycles in which an emission control start signal is output, to the graphic processor, outputs the emission control start signal based on the control signal, and adjusting an output timing of a scan start signal based on the variable frequency signal; an emission driver which supplies emission control signals to the emission control lines based on the emission control start signal; and a scan driver which supplies scan signals to the scan lines based on the scan start signal.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Gyu Lee, Ji Hye Kim, Jin Wook Yang, Jae Hyeon Jeon
  • Patent number: 11335224
    Abstract: A pixel circuit, a driving method thereof, and a display device are provided. The pixel circuit includes: a light-emitting assembly including a plurality of light-emitting elements; a driving sub-circuit electrically coupled to the light-emitting assembly and configured to generate driving current for driving the light-emitting assembly; and a repair sub-circuit electrically coupled to the light-emitting assembly and configured to: receive a repair scanning signal (Gate_R, Gate_Ri) and a repair data signal (Data_R, Data_Ri), and provide the driving current to at least one light-emitting element capable of emitting light normally among the plurality of light-emitting elements under the control of the repair scanning signal (Gate_R, Gate_Ri) and the repair data signal (Data_R, Data_Ri).
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: May 17, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dongni Liu, Minghua Xuan, Han Yue, Li Xiao, Liang Chen, Hao Chen
  • Patent number: 11328644
    Abstract: Provided are an array substrate and a display panel. The array substrate includes: gate lines and data lines on a substrate, the gate lines extending in a first direction, the data lines extending in a second direction, and the gate lines and the data lines crossing over each other to define pixel regions arranged in a matrix; pixel electrodes respectively in the plurality of pixel regions and on a side of the gate lines away from the substrate; common electrode lines at least partially surrounding the plurality of pixel regions; and a shielding electrode on a side of the gate lines away from the substrate and electrically connected to the common electrode lines, an orthographic projection of the shielding electrode on the substrate covering an orthographic projection of a portion, between the pixel electrodes adjacent in the second direction, of at least one of the gate lines on the substrate.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 10, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunping Long, Hui Li
  • Patent number: 11322067
    Abstract: A display device includes: a screen body, including a first display area and a second display area; and a display driving chip; wherein the display driving chip includes: a first preset grayscale generation module, configured to generate a first preset grayscale voltage; a second grayscale generation module, configured to calculate the grayscale required by each pixel unit in the second display area according to image data, and generate a grayscale voltage range including a plurality of grayscale voltages; a grayscale driving module and configured to select the grayscale voltage corresponding to the grayscale required by each pixel unit in the second display area from the grayscale voltage range; and, a first control module, electrically connected to the grayscale driving module, configured to control the grayscale driving module to allocate the first preset grayscale voltage to all pixel units in the first display area.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: May 3, 2022
    Assignee: Yungu (Gu'au) Technology Co., Ltd.
    Inventors: Xinquan Chen, Xiaobao Zhang, Zheng Wang, Wei Ding
  • Patent number: 11323556
    Abstract: Provided is an electronic device comprising: a memory storing instructions; and at least one processor configured to execute the instructions to: detect at least one event of the electronic device operating in a first mechanism; in response to the detected at least one event, operate in a second mechanism; and transmitting screen information of the electronic device to another electronic device for displaying a virtual reality screen at the other electronic device based on the screen information.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: May 3, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Abhishek Sansanwal, Neeraj Kumar, Maneesh Jain, Arun Kumar Singh
  • Patent number: 11315456
    Abstract: A display device and a short circuit detection method therefor are disclosed. The display device comprises: a display panel, a data driving circuit and a scanning driving circuit; the data driving circuit includes a digital-to-analog converter, an amplifier, a switch module and a sensor; an output terminal of the digital-to-analog converter is connected to a data line sequentially via the amplifier and the switch module; the sensor is connected to an external voltage source; and an input terminal and an output terminal of the switching module are disconnected when a feedback voltage received by the sensor is outside of a voltage value range defined by a first voltage source and a second voltage source.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: April 26, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhi Xiong
  • Patent number: 11315452
    Abstract: A display apparatus includes a display panel, a timing controller and a power management integrated circuit (PMIC). The timing controller is to control an operation of the display panel and to store a plurality of fault patterns to be displayed on the display panel to represent that a plurality of defective phenomena have occurred. The PMIC is to supply a first power supply voltage to the timing controller and to monitor whether the plurality of defective phenomena have occurred. When a first defective phenomenon among the plurality of defective phenomena is sensed, the PMIC is to store first fault data and to shut down the display panel. When the first defective phenomenon is sensed, the timing controller is to control the display panel to display a first fault pattern corresponding to the first defective phenomenon among the plurality of fault patterns before the display panel is shut down.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: April 26, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gwang Soo Ahn, Sung Soo Choi, Jong Jae Lee
  • Patent number: 11308840
    Abstract: The present disclosure relates to a technology for a low power operation of a display device. The present disclosure allows reducing power consumption by supplying image data of a pixel of a preceding line again for a pixel of a current line without transmitting new image data when image data are repeated in units of pixels.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: April 19, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jung Min Choi, Jong Min Park, Woong Jin Oh
  • Patent number: 11307621
    Abstract: A display panel has a non-display area comprising a GOA wiring area is provided. The display panel includes GOA wirings disposed in the GOA wiring area, and an electrostatic shielding unit, disposed at least corresponding to the GOA wirings of part of the GOA wiring area. The electrostatic shielding unit is configured to prevent the GOA wirings from being damaged by static electricity.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: April 19, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Ningkun Peng, Shaojing Wu
  • Patent number: 11308842
    Abstract: The present disclosure discloses a display driving apparatus configured to process data by using a low voltage bias current, process a source signal by using a high voltage bias current, and provide the low voltage bias current and the high voltage bias current by using one bias core.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: April 19, 2022
    Inventors: Young Bok Kim, Taiming Piao, Young Tae Kim, Dong Hun Lee
  • Patent number: 11295655
    Abstract: A timing control board includes a point-to-point interface, a storage, a signal input port and a timing controller. The storage is for storing multiple sets of different point-to-point configuration parameters. The timing controller obtains a set of point-to-point configuration parameters matching a protocol type of a source drive circuit board in the storage according to the configuration parameter selection signal, and initializes settings according to the set of point-to-point configuration parameters to generate matched data signals and output the data signals to the source drive circuit board through the point-to-point interface, so as to realize the compatibility of display panels and reduce the design cost.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: April 5, 2022
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATION LIMITED
    Inventors: Feilin Ji, Lidan Ye
  • Patent number: 11270616
    Abstract: Disclosed are a display apparatus and a method of controlling the same, the display apparatus including: a display, a first connector connectable to a first power source, a second connector connectable to a second power source, a first converter configured to convert power supplied from the first power source, a second converter configured to supply operation power to the display based on power converted by the first converter or power supplied from the second power source, and a selector configured to connect the first connector and the first converter or the second connector and the second converter based on a power connection state of the first connector and the second connector.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: March 8, 2022
    Assignee: SAMSUNG ELECTRONICS CO.. LTD.
    Inventors: Moonyoung Kim, Jeongil Kang
  • Patent number: 11269459
    Abstract: A method, system, apparatus, and/or device for sensing an input in an augmented reality construct. The method, system, apparatus, and/or device may include a mixed-reality device, comprises memory and one or more processors communicatively coupled to a sensor, a touch device, and a display device that is at least partially transparent and configured to display a virtual object. The store instructions executable by the one or more processors to generate virtual object data for displaying a virtual object by the display device; output the virtual object data to the display device; receive, from the sensor, interaction data corresponding to a free-space interaction by a hand of a user with the virtual object; generate touch input data based on the interaction data; and output the touch input data to the touch device.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: March 8, 2022
    Assignee: Atheer, Inc.
    Inventors: Shashwat Kandadai, Nathan Abercrombie, Yu-Hsiang Chen, Sleiman Itani
  • Patent number: 11271582
    Abstract: A digital-to-analog converter (“DAC”) converts digital image data into analog image signals. The DAC includes a stage outputting different voltages to a first output terminal and a second output terminal based on a voltage supplied to a first input terminal, a voltage supplied to a second input terminal, and a first input bit. The stage includes a switch circuit including switches that are alternately turned on by a control signal, and outputting an intermediate output voltage to a third output terminal based on a first input voltage supplied to the first input terminal and a second input voltage supplied to the second input terminal, and a selector outputting one of the first input voltage and the second input voltage, and the intermediate output voltage.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: March 8, 2022
    Assignees: SAMSUNG DISPLAY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong Joo Lee, Oh Jo Kwon, Gyeong Gu Kang, Seok Tae Koh, Joon Chul Goh, Hyun Sik Kim, Bong Hyun You
  • Patent number: 11263946
    Abstract: Disclosed are a reference voltage generating circuit and a display device. The reference voltage generating circuit includes a timing control circuit, a digital-to-analog conversion circuit, an operational amplifier circuit, a drive circuit, a switch control circuit, a first switch circuit, and a second switch circuit. The switch control circuit generates a control signal according to a frame start signal and a clock signal provided by the timing control circuit, and outputs the control signal to the first switch circuit and the second switch circuit to control the channels inside the first switch circuit and the second switch circuit to be turned on sequentially, such that an analog voltage signal output by the digital-to-analog conversion circuit can be output to the drive circuit through the first switch circuit, the operational amplifier circuit and the second switch circuit, to provide a reference voltage signal for the drive circuit.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: March 1, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Gege Peng, Xiaoyu Huang