Patents Examined by David Tung
  • 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: 11961491
    Abstract: An electro-optical device is provided and includes a plurality of first signal lines extending in a first direction on a substrate; a plurality of second signal lines extending in a second direction on the substrate, the second direction intersecting the first direction; a pixel area in which a plurality of pixel electrodes are disposed; an outer peripheral edge of the pixel area having a curved portion or a bent portion; and a first circuit block, a second circuit block, and a third circuit block arranged along the outer peripheral edge, wherein the second circuit block is arranged between the first circuit block and the first circuit block, and a first gap between the first circuit bock and the second circuit block is different from a second gap between the second circuit block and the third circuit block.
    Type: Grant
    Filed: June 1, 2023
    Date of Patent: April 16, 2024
    Assignee: Japan Display Inc.
    Inventors: Katsuya Anzai, Hideki Kawada, Hiroshi Matsuda, Yukitada Iwasaki
  • Patent number: 11947738
    Abstract: An operation system includes: a force sensor; and a stick body configured to transmit, to a strain element of the force sensor, force or moment which has been received; and a control section configured to detect a direction of the force or moment received by the stick body, on the basis of an output of the force sensor, and to generate an operation signal for an object to be operated in accordance with the direction detected.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: April 2, 2024
    Assignee: SINTOKOGIO, LTD
    Inventors: Yoshikane Tanaami, Miyuki Hayashi
  • Patent number: 11942054
    Abstract: A driving method of a display device and a display device are disclosed, the driving method including: detecting current pixel inversion mode; determining pixel polarities and first data signals for a next frame based on pixel polarities of a current frame and the inversion mode; determining whether the next frame is an overload image based on pixel bright-or-dark values and grayscale values corresponding to the next frame and those corresponding to the overload image; when the next frame is an overload image, modifying a pixel polarity order corresponding to the first data signals, and generating and outputting second data signals to drive the display device to display the next frame; otherwise outputting the first data signals to drive the display device to display the next frame. The pixel polarities corresponding to the first data signals are in a different order than those corresponding to the second data signals.
    Type: Grant
    Filed: December 26, 2022
    Date of Patent: March 26, 2024
    Assignee: HKC CORPORATION LIMITED
    Inventors: Zhenghui Yuan, Tao Fan, Haijiang Yuan
  • Patent number: 11942040
    Abstract: In a display device having a non-rectangular display unit, occurrence of a difference in luminance between a region with a high load and a region with a low load is suppressed. A region inside the display unit is segmented into a high-load region with a high load on horizontal scanning lines (an initialization control line and a write control line) and a low-load region with a low load on horizontal scanning lines. An initialization control line and a write control line that are disposed in the high-load region are driven by a discharge driver and a scan driver, respectively. An initialization control line and a write control line that are disposed in the low-load region both are driven by, for example, the discharge driver.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 26, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Makoto Yokoyama, Nobuyuki Taya, Junichi Yamada
  • Patent number: 11929046
    Abstract: An electronic device including a substrate, a first signal line, a second signal line, a third signal line, a first level shifter, and a second level shifter is provided. The first signal line, the second signal line, and the third signal line are disposed on the substrate. Each of the first signal line, the second signal line, and the third signal line has two endpoints. The second signal line is disposed between the first signal line and the third signal line. The first level shifter is coupled to the first signal line and the third signal line. The second level shifter is coupled to the second signal line. The first level shifter is coupled to the two endpoints of the first signal line and the two endpoints of the third signal line. The second level shifter is coupled to the two endpoints of the second signal line.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: March 12, 2024
    Assignee: Innolux Corporation
    Inventor: Ching-Wen Shih
  • Patent number: 11927764
    Abstract: Disclosed is a head mounted display device. The head mounted display device includes a head mount unit wearable on a head of a user, a display unit supported on the head mount unit and sending an image to eyes of the user, and a position adjustment unit coupled to the head mount unit, connected to the display unit, and moving the display unit relative to the head mount unit such that a position of the display unit varies with respect to the eyes of the user.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: March 12, 2024
    Assignee: MEGAGEN IMPLANT CO., LTD.
    Inventors: Kwang Bum Park, Hyun Wook An, Keun Oh Park, Tae Gyoun Lee
  • Patent number: 11922859
    Abstract: A novel display panel that is highly convenient or reliable is provided. The display panel includes a pixel comprising a pixel circuit and a display element, and the display element is electrically connected to the pixel circuit. The pixel circuit is supplied with a selection signal, an image signal, and a pulse width control signal, supplies an output potential, and determines, on the basis of the pulse width control signal, a period during which the output potential is supplied. The pixel circuit includes a first switch and a first transistor. The first switch supplies the image signal on the basis of the selection signal and determines the output potential on the basis of the image signal. The first transistor includes a first and second electrode, and a first gate electrode. The output potential is output from the first electrode, and the first gate electrode is supplied with the image signal.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: March 5, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Koji Kusunoki, Kazunori Watanabe
  • Patent number: 11900887
    Abstract: Display devices and methods are disclosed. In one example, a display device includes display elements arranged in a two-dimensional matrix, data lines for respective display element columns, and a source driver that supplies a video signal voltage to the data lines. In the data lines, display element row includes display elements belonging to first and second groups different from each other. The source driver generates a ramp signal and includes a switch circuit that causes a data line to hold a video signal voltage. When output of the ramp signal and a data line are switched from a connected state to a disconnected state in order to cause the data line corresponding to a certain display element to hold a video signal voltage, a data line corresponding to a display element belonging to a different group and the ramp signal are switched from the disconnected state to the connected state.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: February 13, 2024
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Naobumi Toyomura
  • Patent number: 11893954
    Abstract: A display device may include: a thin film transistor operatively associated with a gate line and a data line; a common electrode line for providing a common voltage to a liquid crystal capacitor and a holding capacitor; and a controller for supplying a data voltage corresponding to a data signal to the liquid crystal capacitor and the holding capacitor through the thin film transistor during an active period, wherein the controller identifies whether a blank period begins and a next data signal is received after a threshold time, and controls the common electrode line to adjust the common voltage on the basis of the identification result.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: February 6, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jinoh Kim
  • Patent number: 11887552
    Abstract: The disclosure provides a display driving device and a display control device and an operation method thereof. The display control device includes a data analyzing circuit and a data compensation circuit. The data analyzing circuit performs arithmetic operation on multiple sub-pixel data output by a target driving channel of a source driver in a current frame to obtain a resultant value corresponding to the target driving channel. The data compensation circuit determines at least one compensation grayscale value corresponding to the resultant value. The compensation grayscale value is to be displayed by the target driving channel in a vertical blank period of a frame period in which the current frame is displayed. The target driving channel of the source driver outputs at least one compensation voltage corresponding to the at least one compensation grayscale value in the vertical blank period of the frame period.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: January 30, 2024
    Assignee: Novatek Microelectronics Corp.
    Inventors: Fu-Jung Wen, Heng-Yao Lin, Yen-Tao Liao, Jen-Ta Yang, Yu-Hung Su
  • Patent number: 11880529
    Abstract: An display device, includes: an input sensor including: a sensor controller configured to operate in a first mode, in which the first electrode and the second electrode are operated as different groups, or in a second mode, in which the first electrode and the second electrode are operated as a same group, wherein the sensor controller is configured to have an operation time of the first mode, which is longer than an operation time of the second mode, in response to the input sensor operating in the first driving mode during successive sensing periods of a first group, and the sensor controller is configured to have the operation time of the second mode, which is longer than the operation time of the first mode, in response to the input sensor operating in the second driving mode during successive sensing periods of a second group.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: January 23, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaeuk Choi, Yun-Ho Kim, Chul Kim, Bonghyun You
  • Patent number: 11862102
    Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.
    Type: Grant
    Filed: August 9, 2022
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung-Taek Kim, Byeong-Doo Kang, Jae Woo Ryu, Joonsuk Baik, Sekeun Lee
  • Patent number: 11862105
    Abstract: A display device comprises: a display panel including a first display area comprising a first pixels, and a second display area comprising a second pixels, each pixel including a light emitting element; a data driver circuit configured to output data voltages of an image to the first and second pixels; a gate driver configured to output scan signals to the first and second pixels; and a power supply configured to generate a low-potential power supply voltage that is applied to the light emitting element included in each pixel, the low-potential power supply voltage switching between a first level such that the light emitting element is capable of emitting light, and a second level such that the light emitting element cannot emit light, wherein a frame period of the display device includes an addressing period during which the low-potential power supply voltage switches from the second level to the first level.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: January 2, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jin Woo Jung, Sang Jin Nam
  • Patent number: 11853496
    Abstract: A processing system includes sensor circuitry and processing circuitry. The sensor circuitry is configured to, using the sensor electrodes, obtain capacitive measurements of a sensing region, and obtain a resistance measurement of the sensing region. The processing circuitry is coupled to the sensor circuitry. The processing circuitry is configured to determine a location of an input object using the capacitive measurements of the sensing region and determine a force value based on the resistance measurement and the location of the input object. Determining the force value mitigates a temperature variation of the sensing region affecting the resistance measurement. The processing circuitry is further configured to report the force value.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: December 26, 2023
    Assignee: Synaptics Incorporated
    Inventor: Tom Vandermeijden
  • Patent number: 11853544
    Abstract: One embodiment of the present invention relates to an electronic device for reproducing, in time sequence, first pen data in which handwriting strokes are digitized on a medium by an electronic pen. The electronic device comprises: a communication module; a control module; an output module for reproducing or outputting first handwriting information, first image or audio information photographed or recorded by the electronic device, and event information in time sequence; and a memory module for storing contents including the first handwriting information, the first image or audio information, and the event information, wherein, when the communication module further receives second pen data in a state where the first handwriting information is held on the output module after the contents are stored in the memory module, second handwriting information corresponding to the second pen data is added to the first handwriting information and then reproduced.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: December 26, 2023
    Assignee: NEOLAB CONVERGENCE INC.
    Inventors: Sang Gyu Lee, Suk Joo Lee
  • Patent number: 11847963
    Abstract: The disclosure discloses a driving circuit and a display apparatus, wherein the driving circuit includes a substrate circuit and at least one standby circuit, and the at least one standby circuit is connected with the substrate circuit; the substrate circuit includes a first light-emitting device, a first driving unit and a first capacitor unit; the first driving unit is respectively connected with the first light-emitting device and the first capacitor unit; the first capacitor unit is charged through the first driving unit until a voltage value of the first capacitor unit meets a compensation voltage value of the first driving unit; after the charging of the first capacitor unit is completed, a first reference potential is coupled with the first capacitor unit to enable the first driving unit to obtain an adjustable trans-voltage, and the first driving unit outputs a stable current according to the adjustable trans-voltage to drive the first light-emitting device to work.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: December 19, 2023
    Assignee: CHONGQING KONKA PHOTOELECTRIC TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventor: Shisong Zheng
  • Patent number: 11842002
    Abstract: To provide an inexpensive display device. The display device includes a pixel and an IC chip. The pixel includes a first pixel circuit including a display element and a second pixel circuit including a light-receiving device. The one IC chip includes a control circuit, a data driver circuit, and a read circuit. The first and second pixel circuits are electrically connected to the read circuit. The control circuit has a function of controlling driving of the data driver circuit and the read circuit. The data driver circuit has a function of supplying image data to the first pixel circuit. The read circuit has a function of outputting a monitor signal corresponding to a monitor current when the monitor current flows through the first pixel circuit. The read circuit also has a function of outputting an imaging signal corresponding to imaging data acquired by the second pixel circuit.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: December 12, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kei Takahashi, Hidetomo Kobayashi, Hajime Kimura, Takeshi Osada, Hideaki Shishido, Kiyotaka Kimura, Shuichi Katsui, Takeya Hirose, Takayuki Ikeda
  • Patent number: 11830447
    Abstract: The present disclosure relates to a liquid crystal display drive device and a method of driving the same. An image processor of a liquid crystal display device may generate second pixel data by applying a first gain, determined according to a brightness level of each LED element, to first pixel data of each subpixel, may calculate a second gain by using a differential value obtained by differentiating the brightness level of each LED element for a location of each subpixel, and a weight and a compensation coefficient determined according to the brightness level of each LED element, generate third pixel data by applying the second gain to the second pixel data, and output the third pixel data.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: November 28, 2023
    Assignee: LX SEMICON CO., LTD.
    Inventors: Do Hoon Lee, Hyun Kyu Jeon, Ji Won Lee, Chan Yung Kim
  • Patent number: 11803251
    Abstract: A split wireless keyboard for communicating with a host device includes first and second keyboard halves. Each keyboard half communicates wirelessly with the host device to communicate that a key has been depressed or released. The keyboard halves communicate wirelessly with each other to signal key status changes. The two keyboard halves alternate serving as master and slave depending upon which keyboard half has most recently detected a change of key status, and only the keyboard half designated as the master actively communicates with the host. Wireless communications among the two keyboard halves and the host may use Bluetooth short-range wireless technology protocol. One keyboard half initially pairs with the host, and then shares a wireless link key with the other keyboard half during a setup phase. A Y-shaped hardwired connection cable may be used to interconnect the two keyboard halves to the host device instead of using wireless communications.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: October 31, 2023
    Assignee: ATELIER POLYMATH LLC
    Inventor: Tarik Ansari