Patents Examined by Jarurat Suteerawongsa
  • Patent number: 11257408
    Abstract: The present disclosure relates to a drive device and a drive method of a display panel, and a display device. The drive device includes a driving unit configured to output a drive signal for driving a sub-pixel. The drive device includes a compensating unit coupled to the driving unit and a fanout line of a fanout region. The drive device is configured to compensate an impedance of the fanout line based on a reference impedance and the drive signal. The fanout region includes a plurality of fanout lines, and the reference impedance is a maximum impedance among the impedances of the plurality of fanout lines or an impedance greater than the maximum impedance.
    Type: Grant
    Filed: March 11, 2018
    Date of Patent: February 22, 2022
    Assignees: BOE Technology Group Co., Ltd., Chongqing BOE Optoelectronics Technology Co., Ltd.
    Inventor: Yang Liu
  • Patent number: 11249588
    Abstract: A display apparatus includes an organic light emitting display panel including a circuit layer and a touch sensing unit disposed on the organic light emitting display panel and including sensor blocks and touch signal lines connected to the sensor blocks. The circuit layer includes first signal lines disposed on a base layer, a first insulation layer disposed on the first signal lines, second signal lines disposed on the first insulation layer, and dummy conductive patterns. Each of the touch signal lines includes a touch line part and a touch pad part connected to an end of the touch line part. The dummy conductive patterns include a dummy conductive pad disposed directly on a same layer as the first signal lines or the second signal lines and overlap the touch pad part.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: February 15, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyoungwook Jang, Gwang-bum Ko, Hyunjae Na
  • Patent number: 11231768
    Abstract: The present invention provides a method of a controller, for controlling a plurality of drivers, each coupled to a panel having a plurality of areas and configured to control at least one of the areas of the panel. The method includes steps of: controlling each of the drivers to perform finger touch detection in a first finger detection mode and perform stylus detection in a first stylus detection mode; when a finger touch is detected on a first area in the first finger detection mode, controlling a first driver corresponding to the first area to perform finger touch detection in a second finger detection mode on the first area; and when a stylus is detected on a second area in the first stylus detection mode, controlling a second driver corresponding to the second area to perform stylus detection in a second stylus detection mode on the second area.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 25, 2022
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang, Wei-Kang Tsai
  • Patent number: 11215831
    Abstract: A transmissive head mounted display apparatus includes an image display unit configured to transmit an external scene and display an image of a display target viewable with the external scene, an imaging unit, a target identifying unit configured to identify, from a captured image captured by the imaging unit, a target of a task predetermined as a task that a user of the transmissive head mounted display apparatus needs to perform, a task occurrence determination unit configured to determine, based on a state of the target in the captured image, whether the task has occurred or not, and a display controller configured to cause the image display unit to display related information relating to the task when the task is determined to have occurred.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: January 4, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Kazuo Nishizawa
  • Patent number: 11209938
    Abstract: A pen state detection circuit that is connected to a touch sensor of a capacitance type and adapted to detect a state of an electronic pen in accordance with an output signal from the touch sensor. The touch sensor includes sensor electrodes disposed in a planar manner, and the electronic pen includes a first electrode and a second electrode. The pen state detection circuit includes a processor configured to sequentially and repeatedly: acquire first and second coordinate values in a sensor coordinate system, the coordinate system being defined on a detection surface of the touch sensor, the first coordinate values indicating a projected position of the first electrode, the second coordinate values indicating a projected position of the second electrode; calculate an inclination value indicative of an inclination of the electronic pen from the acquired first and second coordinate values in accordance with calculation rules; and output the inclination value.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 28, 2021
    Assignee: Wacom Co., Ltd.
    Inventor: Yoshio Nomura
  • Patent number: 11200827
    Abstract: A chromaticity compensation method, a chromaticity compensation device and a storage medium are disclosed. The chromaticity compensation method includes that, according to a preset standard chromaticity value and measured chromaticity values corresponding to a plurality of sub-display regions in a display region, chromaticity compensation values of the sub-display regions are determined, and the display region is divided into the plurality of sub-display regions in close arrangement, and each of the sub-display regions includes a plurality of sub-pixels; a data smoothing treatment is performed between the chromaticity compensation values of the sub-display regions that are adjacent, so as to determine the smoothed chromaticity compensation values of the sub-pixels in the sub-display regions; and upon display, chromaticity compensation of the sub-pixels are performed by adopting the smoothed chromaticity compensation values.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 14, 2021
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wenchao Bao, Xiaolong Wei, Dongxu Han
  • Patent number: 11156882
    Abstract: A circuit substrate, a display device and a driving method are provided. The circuit substrate includes a base substrate, a gate driving circuit, and at least one signal trace group which are on the base substrate. The signal trace group includes two signal traces, and the two signal traces are electrically connected with the gate driving circuit and are configured to provide clock signals with inverted phases to the gate driving circuit; the two signal traces are respectively in different layers and are insulated from each other; and orthographic projections of the two signal traces on the base substrate at least partially overlap with each other.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 26, 2021
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Peng Qin, Cheng Zuo, Kangpeng Dang, Yang Rao, Bo Wang, Zhong Jin, Lihua Jiang
  • Patent number: 11132083
    Abstract: To present different force senses depending on visually-recognizable patterns by using magnetic bodies which are preliminarily magnetized.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: September 28, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventor: Kentaro Yasu
  • Patent number: 11107420
    Abstract: The display device according to the present disclosure may comprise a display panel equipped with a plurality of pixels connected to data lines and sensing lines; a source drive IC configured to provide a data voltage to a pixel through the sensing line and equipped with a sensing block obtaining sensing data related to driving characteristics of the pixel using a signal input through the sensing line; a switch configured to control a connection via the sensing line between the pixel and the sensing block; and a power source configured to provide a test voltage or a test current to the sensing block, and the source drive IC may obtain calibration data for the sensing block by using the test voltage or the test current in a state that the switch disconnects the pixel and the sensing block.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: August 31, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seokhyun Hong, Jaeyoon Bae, OSung Do, Taeyoung Lee
  • Patent number: 11106291
    Abstract: It includes: an operation portion comprised of a ring-shaped conductive member, a rotational operation being performed on the operation portion; a rotary supporting member comprised of a ring-shaped non-conductive member and fixed onto a capacitive type touch panel, the rotary supporting member rotatably supporting the operation portion; a ring-shaped concave groove disposed in the rotary supporting member; and conductive conducting terminal portions electrically connected to the operation portion, the conductive conducting terminal portions being rotated inside the concave groove integrally with the operation portion, positions of the conducting terminal portions being detected by the touch panel, wherein the operation portion is divided into a plurality of areas electrically insulated from each other in a circumferential direction, and at least two of the conducting terminal portions are mounted to different areas of the plurality of areas.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: August 31, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shinya Takaoka, Akinori Tsukaguchi
  • Patent number: 11106130
    Abstract: A direct patterning method of touch panel is provided. A substrate having a display region and a peripheral region is provided. A periphery circuit having a bonding pad is disposed on the periphery region. A metal nanowire layer made of metal nanowires are disposed on the display region and the peripheral region. A photosensitive pre-cured layer is disposed on the metal nanowire layer. A photolithography process is performed, which includes exposing the pre-cured layer to define a removal area and a reserved area, and removing the pre-cured layer and the metal nanowire layer on the removal area using a developer solution to form a touch-sensing electrode disposed on the display region and to expose the bonding pad disposed on the periphery region. The touch sensing electrode made of the pre-cured layer and the metal nanowire layer is electrically connected to the periphery circuit.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: August 31, 2021
    Assignee: TPK Touch Solutions Inc.
    Inventors: Shan-Yu Wu, Chien-Hsien Yu, Chih-Min Chen, Wei-Na Cao, Cheng-Chieh Chang, Xue-Wei Wei, Zhi-Xiong Chen
  • Patent number: 11100308
    Abstract: An array substrate and a preparation method therefor, a fingerprint recognition method, and a display device, comprising: a base substrate, a plurality of pixel units and a plurality of fingerprint recognition units located within a display region of the base substrate; a fingerprint recognition unit comprises: a light-shielding layer and a photosensitive image sensor that are located on the base substrate; the light-shielding layer is provided with a through hole which is used to achieve small-aperture imaging; the orthographic projection of the through hole on the base substrate does not overlap with the orthographic projection of a pixel unit on the base substrate; the photosensitive image sensor is used to receive an image of a fingerprint formed by means of the through hole.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 24, 2021
    Assignee: BOE Technology Group Co., Ltd
    Inventors: Yanliu Sun, Shiming Shi, Zheng Liu, Weifeng Zhou
  • Patent number: 11054934
    Abstract: An electronic device including a touch input unit, a display unit, and a control unit is provided. The touch input unit includes a first default input function. The display unit is configured to display a default interface or a first interface. The first interface is corresponding to the first default input function. The control unit is electrically connected to the touch input unit and the display unit for controlling the display unit to be switched from the default interface to the first interface.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 6, 2021
    Assignee: ASUSTEK COMPUTER INC.
    Inventors: Sheng-Ta Lin, Chih-Wen Hsieh
  • Patent number: 10998347
    Abstract: A semiconductor device including: one or more pieces of first wiring having a main wiring section and a bifurcation wiring section; one or a plurality of pieces of second wiring having a trunk wiring section and a plurality of branch wiring sections within a gap region between the main wiring section and the bifurcation wiring section; one or a plurality of transistors each divided and formed into a plurality of pieces, the plurality of branch wiring sections individually functioning as a gate electrode and the one or plurality of transistors having a source region formed within the main wiring section and within the bifurcation wiring section and having a drain region formed between the plurality of branch wiring sections; and one or a plurality of pieces of third wiring electrically connected to the drain region of the one or plurality of transistors.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: May 4, 2021
    Assignee: JAPAN DISPLAY INC.
    Inventors: Mitsufumi Sogabe, Masaki Murase, Hiroshi Mizuhashi
  • Patent number: 10996742
    Abstract: An AR/VR input device include a processor(s), an internal measurement unit (IMU), and a plurality of sensors configured to detect emissions received from a plurality of remote emitters. The processor(s) can be configured to: determine a time-of-flight (TOF) of the detected emissions, determine a first estimate of a position and orientation of the input device based on the TOF of a subset of the detected emissions and the particular locations of each of the plurality of sensors on the input device that are detecting the detected emissions, determine a second estimate of the position and orientation of the input device based on the measured acceleration and velocity from the IMU, and continuously update a calculated position and orientation of the input device within the AR/VR environment in real-time based on a Beyesian estimation (e.g., Extended Kalman filter) that utilizes the first estimate and second estimate.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: May 4, 2021
    Assignee: Logitech Europe S.A.
    Inventors: Andreas Connellan, Arash Salarian, Fergal Corcoran, Jacques Chassot, Jerry Ahern, Laleh Makarem, Mario Gutierrez, Maxim Vlasov, Olivier Guédat, Padraig Murphy, Richard Perring
  • Patent number: 10969919
    Abstract: An electrostatic capacitive coupling type touch panel including an input region having four sides, a peripheral region around the input region, terminals formed in the peripheral region along a first side of the input region, wirings formed in the peripheral region along second, third and fourth sides of the input region, and the input region having X and Y electrodes crossing. The wirings are connected between corresponding X or Y electrodes and wiring terminals plurality of terminals. A dummy wiring, which is not connected to any of the X electrodes or Y electrodes, is provided outside the wiring formed in a farthest position from the input region, and the dummy wiring extends through the peripheral region along the second, third and fourth sides of the input region, and electrically connects to at least one dummy wiring terminal.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: April 6, 2021
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hiroshi Esaka, Shouji Ikeda, Kouichi Anno
  • Patent number: 10971083
    Abstract: A compensation method for a display panel, a compensation device for a display panel, and a display apparatus are provided. The display panel includes a plurality of pixel units, and each pixel unit includes a pixel circuit and a light-emitting element. The compensation method includes: detecting a threshold voltage of a drive transistor in the pixel circuit; detecting a maximum data voltage corresponding to a maximum brightness of the light-emitting element; and based on the threshold voltage, the maximum data voltage and an expected display brightness, calculating a compensation display data voltage in a normal display state after the display panel is compensated.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: April 6, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Song Meng, Fei Yang
  • Patent number: 10942584
    Abstract: Various embodiments described herein are directed toward input mechanisms, for input devices, configured to receive and removably couple to interchangeable elements. Handheld input devices applicable to some embodiments may include, without limitation, computer controllers, video game console controllers, and handheld video gaming devices. Input mechanisms applicable to various embodiments may include, for example, control sticks (e.g., joysticks or analog sticks operable by a user's finger, such as a thumbstick), buttons, switches, and directional pads. According to some embodiments, an input mechanism is provided comprising a base component. Depending on the embodiment, coupling different interchangeable elements to the base component may cause the input mechanism to vary in size, appearance, contour, material, or features provided by the input mechanism.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 9, 2021
    Assignee: Performance Designed Products LLC
    Inventors: Bradley M. Strahle, Eric B. Fulghum
  • Patent number: 10937360
    Abstract: The present invention discloses a source driver for a display apparatus, which drives a display panel using display data and senses a pixel signal of the display panel. The source driver may include a sensor and ADC (Analog-digital Converter) which provide the pixel sensing signal obtained by comparing a reference voltage and a pixel signal of the display panel using one buffer at a sensing period, and drive the source signal to the display panel using the buffer at a driving period.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: March 2, 2021
    Assignee: Silicon Works Co., Ltd.
    Inventors: Jae Kwan Lee, Kyung Min Kim
  • Patent number: 10929640
    Abstract: The present disclosure relates to a flat panel display with an optical image sensor embedded therein. The flat panel display includes a directional light unit. The directional light unit comprises a cover substrate with a surface area corresponding to the length and width; a first low refractive index layer attached to the lower surface of the cover substrate; a light-exiting element disposed to correspond to the display area, on the lower surface of the first low refractive index layer; a light-entering element disposed outside the display area at one side of the light-exiting element, on the lower surface of the first low refractive index layer; a second low refractive index layer disposed on the lower surfaces of the light-exiting element and light-entering element and attached to the upper surface of the display panel; and a light source disposed to face the light-entering element.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 23, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Seungman Ryu, Joobong Hyun, Ara Yoon