Patents by Inventor Chang Zhang

Chang Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220317529
    Abstract: Provided is an array substrate. The array substrate includes: a base substrate, and a plurality of gate lines, a plurality of data lines, a plurality of sub-pixels and a plurality of touch signal lines disposed on the base substrate. The data lines have a plurality of first extending parts and a plurality of second extending parts which are in an alternating arrangement. When the array substrate is used to prepare a liquid crystal display panel and the liquid crystal display panel is displaying, in each column of the sub-pixels, the voltage polarities of the two adjacent sub-pixels which respectively belong to two adjacent first pixel regions are opposite.
    Type: Application
    Filed: October 22, 2020
    Publication date: October 6, 2022
    Inventors: Xuerui Gong, Yong Yu, Chang Zhang, Jiangsheng Wang
  • Publication number: 20220321121
    Abstract: Disclosed herein is an input device having adjustable input mechanisms. The input mechanisms of the input device may be dynamically adjusted based on one or more input characteristics associated with a user. Accordingly, the input device may be customized to fit a user's input preferences.
    Type: Application
    Filed: June 14, 2022
    Publication date: October 6, 2022
    Inventors: Paul X. Wang, John C. DiFonzo, Dayu Qu, Zheng Gao, Chang Zhang
  • Patent number: 11462194
    Abstract: A system may include electronic devices that communicate wirelessly. When positioned so that a pair of devices overlap or are adjacent to one another, the devices may operate in a linked mode. During linked operations, devices may communicate wirelessly while input gathering and content displaying operations are shared among the devices. One or both of a pair of devices may have sensors. A capacitive sensor or other sensor may be used to measure the relative position between two devices when the two devices overlap each other. Content displaying operations and other linked mode operations may be performed based on the measured relative position between the two devices and other information.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 4, 2022
    Assignee: Apple Inc.
    Inventors: Paul X. Wang, Tianjia Sun, Chang Zhang, Dominic P. McCarthy, Eric Shyr, John B. Morrell, John P. Ternus
  • Publication number: 20220310002
    Abstract: Disclosed are a driving circuit for a display panel, a display module, a compensation method of the display module, and a display device. According to the present disclosure, a TCON circuit board provided with a plurality of sets of reference voltage outputs is used to independently input a reference voltage to each driver chip through a corresponding set of reference voltage input lines, that is, each driver chip receives an independent reference voltage signal, in this way, the reference voltages output by the TCON circuit board corresponding to each driver chip can be adjusted, the reference voltages received by all driver chips are made to be the same voltages.
    Type: Application
    Filed: October 21, 2021
    Publication date: September 29, 2022
    Inventors: Yong YU, Zhenwen HU, Wenhong LIU, Chang ZHANG
  • Publication number: 20220276735
    Abstract: A display panel and a manufacturing method thereof, and a display device are provided. The display panel includes: a substrate; a plurality of light-emitting elements and an encapsulation layer disposed on the substrate, with the plurality of light-emitting elements located between the encapsulation layer and the substrate; a transfer layer disposed on a side of the encapsulation layer away from the substrate and bonded to the encapsulation layer, with an adhesive force between the transfer layer and the encapsulation layer greater than that between an organic adhesive layer and the encapsulation layer, and the organic adhesive layer configured to react chemically under a preset catalytic condition to be formed to the transfer layer; and a touch structure (40) disposed on a side of the transfer layer away from the substrate and configured to detect occurrence of a touch action.
    Type: Application
    Filed: March 11, 2021
    Publication date: September 1, 2022
    Inventors: Shimin PU, Jianjun WU, Jiangsheng WANG, Chang ZHANG, Qi LIU
  • Patent number: 11422765
    Abstract: The present disclosure generally relates to engaging in cross device interactions. The method includes at a first device with a first display, while a second device having a second display is placed over a first region of the first display, detecting, via input devices of the first device, a first input. In response to detecting the first input and in accordance with a determination that the first input occurred while focus was directed to the second device, the method includes causing a response to the first input to be displayed on the second display. In response to detecting the first input and in accordance with a determination that the first input occurred while focus was directed to the first device, the method includes displaying, on the first display, a response to the first input without causing a response to the first input to be displayed on the second display.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 23, 2022
    Assignee: Apple Inc.
    Inventors: Tianjia Sun, Chang Zhang, Paul X Wang, Aaron Wang
  • Patent number: 11398190
    Abstract: A display driving method, a display driving device and a display module are provided. The display driving method includes: during each delay cycle, controlling a first light-emission control signal to be delayed by a predetermined duration from a second light-emission control signal, the predetermined duration corresponding to the delay cycle. The first light-emission control signal is a light-emission control signal outputted by each light-emission control line during an (n+1)-th frame of display time period in the delay cycle, and the second light-emission control signal is a light-emission control signal outputted by the corresponding light-emission control line during an n-th frame of display time period in the delay cycle. Each delay cycle includes N frames of display time periods, N is a positive integer greater than a first predetermined number, and n is a positive integer less than N.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: July 26, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Yong Yu, Zhiguang Zhang, Taehyun Kim, Chang Zhang
  • Patent number: 11394385
    Abstract: Disclosed herein is an input device having adjustable input mechanisms. The input mechanisms of the input device may be dynamically adjusted based on one or more input characteristics associated with a user. Accordingly, the input device may be customized to fit a user's input preferences.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 19, 2022
    Assignee: APPLE INC.
    Inventors: Paul X. Wang, John C. DiFonzo, Dayu Qu, Zheng Gao, Chang Zhang
  • Patent number: 11380255
    Abstract: An optical compensation method for a display panel, an optical compensation device for a display panel, a display method for a display panel, a display device, and a storage medium are disclosed. The optical compensation method for a display panel includes: acquiring a pre-stored compensation parameter of the display panel; acquiring a current brightness level of the display panel; adjusting the pre-stored compensation parameter based on the current brightness level to obtain an adjusted compensation parameter; and compensating a display data signal of the display panel based on the adjusted compensation parameter.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: July 5, 2022
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chang Zhang, Tairong Kim, Shanfu Jiang
  • Patent number: 11366523
    Abstract: A portable computer includes a display portion comprising a display and a base portion pivotally coupled to the display portion. The base portion may include a bottom case and a top case, formed from a dielectric material, coupled to the bottom case. The top case may include a top member defining a top surface of the base portion and a sidewall integrally formed with the top member and defining a side surface of the base portion. The portable computer may also include a sensing system including a first sensing system configured to determine a location of a touch input applied to the top surface of the base portion and a second sensing system configured to determine a force of the touch input.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: June 21, 2022
    Assignee: APPLE INC.
    Inventors: Christiaan A. Ligtenberg, Brett W. Degner, Ron A. Hopkinson, Asif Hussain, Dinesh C. Mathew, Mikael M. Silvanto, Chang Zhang, Zheng Gao, Robert Y. Cao, Keith J. Hendren, Bryan W. Posner, Simon R. Lancaster-Larocque, Alex J. Lehmann
  • Patent number: 11360558
    Abstract: A system may include finger devices. A touch sensor may be mounted in a finger device housing to gather input from an external object as the object moves along an exterior surface of the housing. The touch sensor may include capacitive sensor electrodes. Sensors such as force sensors, ultrasonic sensors, inertial measurement units, optical sensors, and other components may be used in gathering finger input from a user. Finger input from a user may be used to manipulate virtual objects in a mixed reality or virtual reality environment while a haptic output device in a finger device provides associated haptic output. A user may interact with real-world objects while computer-generated content is overlaid over some or all of the objects. Object rotations and other movements may be converted into input for a mixed reality or virtual reality system using force measurements or other sensors measurements made with the finger devices.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: June 14, 2022
    Assignee: Apple Inc.
    Inventors: Paul X. Wang, Nicolai Georg, Benjamin R. Blachnitzky, Alhad A. Palkar, Minhazul Islam, Alex J. Lehmann, Madeleine S. Cordier, Joon-Sup Han, Hongcheng Sun, Sang E. Lee, Kevin Z. Lo, Lilli Ing-Marie Jonsson, Luis Deliz Centeno, Yuhao Pan, Stephen E. Dey, Paul N. DuMontelle, Jonathan C. Atler, Tianjia Sun, Jian Li, Chang Zhang
  • Patent number: 11335253
    Abstract: An optical compensation method for a display panel and an optical compensation device are provided. The optical compensation method for the display panel includes selecting a pixel block to be compensated in an edge region; and acquiring a pixel compensation parameter of at least one pixel block in a main body region as a pixel compensation parameter of the pixel block to be compensated.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: May 17, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Chang Zhang, Zhiguang Zhang
  • Publication number: 20220141956
    Abstract: Embodiments of the application provide a printed circuit board, a display module, a display device and a method of bonding the printed circuit board to a display screen. The printed circuit board includes a plurality of sub-circuit boards and a flexible connector between adjacent sub-circuit boards of the plurality of sub-circuit boards. The flexible connector is configured to connect the adjacent sub-circuit boards of the plurality of sub-circuit boards with each other. For the printed circuit board provided in the embodiments of the application, each sub-circuit board of the printed circuit board can be bonded independently, thereby avoiding pitch accumulation in the bonding region and thus controlling the total pitch within a satisfactory range.
    Type: Application
    Filed: August 18, 2021
    Publication date: May 5, 2022
    Inventors: Hao SUN, Yong YU, Chang ZHANG, Ge SUN
  • Patent number: 11320949
    Abstract: A touch panel, including a touch electrode layer having a plurality of touch units arranged in a matrix, each of the touch units includes one touch driving electrode and one touch sensing electrode, a shape of the touch driving electrode is complementary with a shape of the touch sensing electrode; touch sensing electrodes of adjacent two touch units are connected, touch driving electrodes of adjacent two touch units are connected; and an edge of the touch driving electrode and an edge of the touch sensing electrode of that are complementary with each other in each of the touch units each are changed in a curved line. A manufacturing method of the touch panel, a touch screen and a display device are also disclosed.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: May 3, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qing Gong, Chang Zhang, Jianjun Wu, Biyu Zhao, Dehua Zhang
  • Patent number: 11244591
    Abstract: A gamma correction method applied to a display screen to be debugged includes: for a color of the display screen to be debugged, arranging a plurality of reference points, arranging at least one transition point between two adjacent reference points, and obtaining a brightness adjustment curve representing a corresponding relationship between a brightness adjustment value and a gamma band according to the plurality of reference points and the at least one transition point. Each gamma band represents a set of register values corresponding to gray scales of the color at the brightness adjustment value corresponding to the gamma band.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: February 8, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yong Yu, Chang Zhang, Renjie Ding, Chuanyan Lan
  • Patent number: 11237436
    Abstract: A spacer includes a first layer, a second layer and a third layer which are disposed in a stacked manner, the second layer includes an upper portion and a lower portion, the lower portion is embedded in the first layer, at least a part of the upper portion is embedded in the third layer, and a hardness of a material of the second layer is higher than a hardness of a material of each of the first layer and the third layer.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: February 1, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Biyu Zhao, Kwanggyun Jang, Chang Zhang
  • Publication number: 20220028322
    Abstract: The present disclosure provides a method for driving a display device and a driver. The method includes obtaining image data, determining whether the image pixels are detail pixels according to the image data, determining a plurality of screen pixel groups, and driving the screen pixels for display.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Qun JIA, Chang ZHANG
  • Patent number: 11222564
    Abstract: The present disclosure provides a display panel, a control method, and a control device thereof. The display panel includes a bending area. The bending area includes a plurality of sub-pixels. The control method includes: obtaining an attenuation parameter of a sub-pixel of at least one color in the bending area, wherein the attenuation parameter is a pre-attenuation amount of brightness attenuation of the sub-pixel; obtaining a pre-register value of the sub-pixel of the at least one color corresponding to grayscale data of a pixel to which the sub-pixel of the at least one color belongs; and adjusting light emission brightness of the sub-pixel of the at least one color based on the pre-register value and the attenuation parameter of the sub-pixel of the at least one color.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: January 11, 2022
    Inventors: Yong Yu, Chang Zhang
  • Patent number: 11217146
    Abstract: A gray-level compensation method and apparatus, a display device and a computer storage medium are provided, which belong to the field of display technology. The method includes: acquiring an initial gray-level value of a target pixel; determining an actual luminance offset of the target pixel based on the initial gray-level value, where different initial gray-level values within a specified threshold range correspond to different actual luminance offsets; and performing a gray-level compensation on the target pixel based on the actual luminance offset. The actual luminance offset is determined based on the initial gray-level value of the target pixel, and since the different initial gray-level values within the specified threshold range correspond to the different actual luminance offsets, flexibility of gray-level compensation performed on the pixel is improved.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 4, 2022
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chang Zhang, Tairong Kim, Shanfu Jiang
  • Publication number: 20210405843
    Abstract: The embodiments of the present disclosure provide a chip on flex (COF), a touch assembly, and a display device. The chip on flex includes a flexible base provided with a first opening, the flexible base includes a bonding area provided with a plurality of metal bonding pads; on the flexible base, a spacing area with a preset range is provided between the first opening and the bonding area; wherein, the flexible base is provided with a reinforcement sheet thereon, the reinforcement sheet is located on a portion of the flexible base other than the first opening, the spacing area and the bonding area.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 30, 2021
    Inventors: Xuerui GONG, Jiangsheng WANG, Yong YU, Chang ZHANG