Patents Examined by Nathan Danielsen
  • Patent number: 11357087
    Abstract: A passive matrix LED display driving scheme based on subframe pulse width modulation (PWM) to increase frame scan rate and further with channel-to-channel compensation is provided. The scheme may comprise: dividing each frame of the display video into T number of subframes; converting a driving signal for a pixel into a N-bit driving data, compensating the driving data with a compensation value; mapping the compensated driving data into the T number of subframes respectively.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: June 7, 2022
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Wing Chi Stephen Chan, Chi Wai Lee, Pak Kong Dunn, Tung Hoi Lau, Chun Hung Lai
  • Patent number: 11347330
    Abstract: In one embodiment, an active stylus includes a receiver and a transmitter configured to receive and transmit signals from and to a device via a touch sensor of the device, wherein the transmitter is integrated with or comprises an adaptive voltage generation circuit including: a boost voltage controller; a comparator; a switch control; and a bleeder circuit. The active stylus further includes a stylus controller configured to: (a) in a first operation state, control the adaptive voltage generation circuit and the transmitter to transmit signals at a second transmit voltage, and (b) in a second operation state different from the first operation state, control the adaptive voltage generation circuit and the transmitter to transmit signals at a first transmit voltage lower than the second transmit voltage.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 31, 2022
    Assignee: Wacom Co., Ltd.
    Inventors: Eivind Holsen, Sharooz Shahparnia, Kishore Sundara-Rajan, Trond Jarle Pedersen, Vemund Kval Bakken, James D. Lyle
  • Patent number: 11348513
    Abstract: A scan driver includes a first transistor including gate, first, and second electrodes coupled to a Q node, a scan clock line, and a scan line. A second transistor includes gate and first electrodes coupled to a scan carry line, and a second electrode coupled to the Q node. A third transistor includes gate and first electrodes coupled to a first control line and a sensing carry line. A fourth transistor includes a gate and first electrode coupled to the sensing carry line and the third transistor first electrode. A fifth transistor includes gate, first, and second electrodes coupled to a fourth transistor second electrode, a second control line, and a node. A capacitor includes first and second electrodes coupled to the fifth transistor first and gate electrodes. A sixth transistor includes gate, first, and second electrodes coupled to a third control line, the node, and the Q node.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: May 31, 2022
    Inventors: Yang Hwa Choi, Bo Yong Chung
  • Patent number: 11335250
    Abstract: A pixel driving circuit is provided, and the pixel driving circuit includes a light-emitting driving circuit, a photosensitive driving circuit, a micro light-emitting diode, and a photoelectric conversion device, wherein when the pixel driving circuit is in a display mode, the light-emitting driving circuit drives the micro light-emitting diode to emit light for display, and when the pixel drive circuit is in a photosensitive display mode, the photosensitive driving circuit drives the photoelectric conversion device to generate a photocurrent, and when the photocurrent is received by the micro light-emitting diode, the micro light-emitting diode will emit light for display. Functions of electronic devices may be integrated into a display panel to achieve full-screen display.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: May 17, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Weihong Yin
  • Patent number: 11328638
    Abstract: A detection circuit and a scan drive circuit are provided. The detection circuit includes a comparison circuit and a determination circuit. The comparison circuit is configured to receive a low-level voltage and a scan output signal output from an nth level buffer, and generate a first intermediate signal according to the scan output signal and the low-level voltage signal. The determination circuit is configured to receive the first intermediate signal and the scan output signal of the nth level buffer output from the output terminal of the nth level buffer in the scan chip, and generate a control signal according to the first intermediate signal and the scan input signal, and output the control signal to the scan chip to control the scan chip to cut off output when a short circuit occurs.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: May 10, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Zhi Xiong
  • Patent number: 11327602
    Abstract: A touch driving method for a touch display device, a touch display device, and an electronic device are provided. The touch driving method includes: applying a touch scanning signal, which is periodic, to a touch structure of the touch display device during applying display data to a display structure of the touch display device in a progressively scanning manner. The display structure is stacked with the touch structure, each period of the touch scanning signal includes a signal rising edge and a signal falling edge, and a signal rising edge and a signal falling edge of at least one period of the touch scanning signal are in display scanning periods for scanning display sub-pixels of an identical color in different rows of the display structure.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: May 10, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yichen Jiang, Qing Gong, Kwang Gyun Jang, Hongqiang Luo
  • Patent number: 11320709
    Abstract: A display device including a substrate having a display area to display an image and a non-display area, at least one pixel provided on the substrate, a first insulating layer disposed on the substrate, and including a first opening at a area adjacent to the display area, a second insulating layer disposed on the first insulating layer, and including a second opening at the area adjacent to the display area, and an encapsulation layer covering the first opening, the second opening, and a portion of the non-display area. The pixel includes a first electrode provided on the first insulating layer, and a second electrode provided on the second insulating layer. At least one of the first electrode and the second electrode includes a metal layer. At least one of the sides of the first opening includes a plurality of slopes having different inclinations.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: May 3, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Ryuk Park, Jin Wook Seo, Sung Young Shin
  • Patent number: 11322061
    Abstract: An array substrate, a display panel and a detection method are provided. The array substrate includes a plurality of display pixels and at least one detection element. When an aging process is performed on the plurality of display pixels, a first driving signal is applied on the at least one detection element and the at least one detection element changes from a first state to a second state, wherein the second state is different from the first state. The second state of the at least one detection element indicates that the plurality of display pixels has undergone the aging process.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: May 3, 2022
    Assignee: Xiamen Tianma Micro-Electronics Co., Ltd.
    Inventors: Lei Suo, Yana Gao, Lilian Kuang
  • Patent number: 11307657
    Abstract: In some embodiments, an electronic device optionally identifies a person's face, and optionally performs an action in accordance with the identification. In some embodiments, an electronic device optionally determines a gaze location in a user interface, and optionally performs an action in accordance with the determination. In some embodiments, an electronic device optionally designates a user as being present at a sound-playback device in accordance with a determination that sound-detection criteria and verification criteria have been satisfied. In some embodiments, an electronic device optionally determines whether a person is further or closer than a threshold distance from a display device, and optionally provides a first or second user interface for display on the display device in accordance with the determination. In some embodiments, an electronic device optionally modifies the playing of media content in accordance with a determination that one or more presence criteria are not satisfied.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 19, 2022
    Assignee: Apple Inc.
    Inventors: Avi E. Cieplinski, Jeffrey Traer Bernstein, Julian Missig, May-Li Khoe, Bianca Cheng Costanzo, Myra Mary Haggerty, Duncan Robert Kerr, Bas Ording, Elbert D. Chen
  • Patent number: 11295677
    Abstract: A display driver integrated circuit includes a first memory, a compensator, an accumulator and a second memory. The first memory stores a plurality of compensation data that are used to compensate for deterioration of a plurality of pixels. The compensator generates a plurality of output image data for image display by compensating a plurality of input image data based on the plurality of compensation data. The accumulator groups the plurality of pixels into a plurality of blocks, generates a plurality of block image data by sampling the plurality of output image data in block units, generates a plurality of block accumulation data in block units based on the plurality of block image data, and generates a plurality of pixel accumulation data in pixel units by synthesizing portions of the plurality of output image data and portions of the plurality of block accumulation data. The second memory stores the plurality of block accumulation data in a first period.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: April 5, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jooyoung An, Jiheon Ok, Hyunwook Lim
  • Patent number: 11295661
    Abstract: Disclosed is a display device including a display panel having a plurality of pixels, the display panel comprising a first display area and a second display area, the second display area being disposed so as to overlap an optical module, and a controller configured to generate display area information of each of the plurality of pixels and border information of pixels provided in a border area located within a predetermined range from a border between the first display area and the second display area, to change an image that is displayed in at least one of the first display area or the second display area based on the display area information and the border information upon determining that the optical module is operated, and to perform control such that the changed image is displayed on the display panel.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: April 5, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Dae Hee Bae, Bo Sung Kim, Jun Hun Park, Ji Hong Yuk, Sung Woo Han, Ji Hoon Choi
  • Patent number: 11287912
    Abstract: A display device includes a substrate, first electrodes, lines, pixel electrodes, a display functional layer, a common electrode, second electrodes, and a controller. The first electrodes are opposed to the second electrodes with a space therebetween, and an insulating layer is provided between the common electrode and the first and second electrodes. During the display periods, in response to a control signal from the controller, the pixel electrodes are supplied with a pixel signal through the lines, and the common electrode is supplied with a common signal. During the sensing period, in response to the control signal from the controller, the lines are supplied with a first drive signal to generate a magnetic field. The first electrodes are supplied with a second drive signal to generate electrostatic capacitance between themselves and the second electrodes in response to the control signal from the controller, synchronously or asynchronously with the display periods.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: March 29, 2022
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Hiroshi Mizuhashi, Tadayoshi Katsuta
  • Patent number: 11287689
    Abstract: A display apparatus including a display element, a frame body, and an optical lens is provided. The display element has a central zone and at least one edge zone located around the central zone. The central zone forms a display surface with at least one edge zone. The frame body has a bezel portion and an accommodating space. The display element is disposed in the accommodating space and the bezel portion surrounds the display element. The optical lens is disposed on the display element and includes a body. The body has a flat portion and at least one extending portion around the flat portion, wherein the at least one extending portion has a feature surface, and the feature surface overlaps the at least one edge zone and the bezel portion in the direction perpendicular to the frame body, so that users can experience a bezel-less visual effect.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: March 29, 2022
    Assignee: Acer Incorporated
    Inventor: Chueh-Pin Ko
  • Patent number: 11289013
    Abstract: A pixel circuit including a compensation circuit, a writing circuit, a light emitting element, and a power supplying circuit is provided. The compensation circuit comprises a first node, and provides a driving current to the light emitting element according to a voltage of the first node and a system high voltage. The writing circuit provides a data voltage to the compensation circuit according to a first control signal so that the compensation circuit sets the voltage of the first node. The power supplying circuit selectively couples the compensation circuit to the light emitting element, and provides the system high voltage and a system low voltage to the compensation circuit, in which the system low voltage is configured to reset the voltage of the first node. The first control signal and the second control signal are opposite to the first emission signal and the second emission signal, respectively.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: March 29, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chih-Lung Lin, Po-Cheng Lai, Ting-Ching Chu, Po-Chun Lai, Mao-Hsun Cheng
  • Patent number: 11282474
    Abstract: A multi-display-region display device can include a plurality of pixels, a first display region including a first subset of the plurality of pixels and a second display region including a second subset of the plurality of pixels. The second display region and the first display region can be adjacent to each other along a respective staggered boundary portion. The display device can include a first controller to control the first display region via a first plurality of control lines communicatively coupling the first controller to the first subset of pixels. The display device can include a second controller to control the second display region via a second plurality of control lines communicatively coupling the second controller to the second subset of pixels.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: March 22, 2022
    Assignee: Rockwell Collins, Inc.
    Inventors: Donald E. Mosier, Steven R. Collins, Craig E. Harwood
  • Patent number: 11270622
    Abstract: A shift register unit, a driving device, a display device and a driving method are disclosed, The shift register unit includes a first circuit unit and a second circuit unit; the first circuit unit includes an input terminal, a reset terminal, a clock signal terminal, a first voltage terminal, a second voltage terminal and a first output terminal, and is configured to output a first output signal of the shift register unit from the first output terminal; the second circuit unit includes a third voltage terminal, a fourth voltage terminal and a second output terminal, and is configured to output a second output signal of the shift register unit from the second output terminal, at least under the control of the first output signal; and the second output signal and the first output signal are mutually phase-inverted signals.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: March 8, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhuo Xu, Yajie Bai, Hailong Wu, Yan Zhou, Peng Liang, Min Ran, Haipeng Zhu
  • Patent number: 11263950
    Abstract: A display device includes: an image display having at least one first display area and a second display area; a memory configured to store image data; and a timing controller configured to store first image data for the first display area in the memory after first image data for the first display area and the second display area is received from a host device, wherein the timing controller is configured to control the image display unit so as to display a first image in the first display area by loading the first image data for the first display area from the memory and to display a preset second image in the second display area.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: March 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bong Ho Bae, Jong Gil Kim, Moon Sang Hwang
  • Patent number: 11263960
    Abstract: Disclosed are a display panel and a driving method. The display panel includes: a substrate, sub-pixels and a switch module. Each sub-pixel includes a pixel drive circuit and a light-emitting element. The pixel drive circuit includes an initialization transistor and a drive transistor, each including a first electrode, a second electrode, and a gate electrode; the first electrode of the initialization transistor is electrically connected to the gate electrode of the drive transistor. The drive transistor provides a drive current to the light-emitting element, the second electrodes of the initialization transistors of at least two sub-pixels are connected to an output terminal of the same switch module. An input terminal of the switch module is electrically connected to an initialization signal terminal. The switch module transfers an initialization signal to the second electrode of the initialization transistor.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: March 1, 2022
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Nana Xiong, Jujian Fu
  • Patent number: 11238776
    Abstract: A pixel circuit and a driving method thereof, and a display device and a driving method thereof are disclosed. The pixel circuit includes a drive circuit, a reset circuit, and a sensing circuit. A control terminal of the drive circuit is configured to receive a data voltage, a first terminal of the drive circuit is configured to receive a first voltage, and a second terminal of the drive circuit is configured to be electrically connected to a light-emitting element. The reset circuit is electrically connected to the second terminal of the drive circuit, and is configured to reset the second terminal of the drive circuit in response to a first scanning signal. The sensing circuit is electrically connected to the second terminal of the drive circuit, and is configured to connect the second terminal of the drive circuit to a sensing signal line in response to a second scanning signal.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: February 1, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fei Yang, Lirong Wang
  • Patent number: 11238780
    Abstract: In one example, a display is described, which may include a plurality of spaced light emitting device packages, a privacy gate having partition walls to partition each of the plurality of spaced light emitting device packages, and a control unit to selectively move the partition walls up or down relative to the plurality of spaced light emitting device packages to control a viewing angle of the display.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: February 1, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kuan-Ting Wu, Wei-Chung Chen, Hui He