Patents Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGIES CO., LTD.
  • Display device and white balance adjusting method of photosensitive element of display device
    Patent number: 11778300
    Abstract: A display device and a white balance adjusting method of a photosensitive element of the display device are provided. The display device includes a display panel, the photosensitive element, and a driver integrated circuit (IC). A first white balance imaging parameter is color parameters of a preset image collected by the photosensitive element of the display device under a preset light source. A second white balance imaging parameter is color parameters of a preset image collected by a photosensitive element of a typical display device under the preset light source. The driver IC is configured to perform a white balance compensation on image data collected by the photosensitive element of the display device according to a deviation between the first white balance imaging parameter the second white balance imaging parameter.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: October 3, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Tao Zeng, Yang Wang
  • Modified polyamic acid, preparation method thereof, and preparation method of composite film
    Patent number: 11773288
    Abstract: A modified polyamic acid, a preparation method thereof, and a preparation method of a composite film are provided. The modified polyamic acid includes polyamic acid and polyvinylidene fluoride. The modified polyamic acid is formed by introducing polyvinylidene fluoride having good thermal stability, high dielectric constant, excellent piezoelectric, and ferroelectric properties, so the dielectric constant and structural adjustability of the modified polyamic acid are improved.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: October 3, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yamin Wang
  • Touch display panel and manufacturing method of touch display panel
    Patent number: 11775118
    Abstract: The present application provides a touch display panel and a manufacturing method of a touch display panel. A first touch unit and a second touch unit of different sizes are arranged on the touch layer, and the size of the first touch unit is smaller than the size of the second touch unit, so that one end of the first touch region provided with the first touch unit forms a wiring region on one end close to the connecting portion to accommodate touch lines of the first touch unit and the second touch unit, and therefore a bezel width of the touch display panel can be reduced.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: October 3, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Xing Wang
  • Display panel
    Patent number: 11778872
    Abstract: The present invention relates to a display panel. In an aspect, a source drain electrode layer in a bending region is provided with grooves at positions corresponding to metal traces and the grooves are filled with a conductive material. By using the conductive material to connect to the metal traces, it does not have to consider stress equilibrium for the metal traces in the bending region, thereby reducing a radius of curvature of the bending and a bezel width and increasing a screen-to-body ratio. In another aspect, a pad plate is provided and the pad plate is provided with conductive bridges arranged at intervals at positions corresponding to the grooves. It can be better connected to the metal traces by the conductive bridges, preventing the conductive material from unable to connect to the metal traces.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 3, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Yang Zhou, Jaebyeung Chae
  • Array substrate and display panel
    Patent number: 11778873
    Abstract: An array substrate and a display panel are provided. The display panel has an area for bending, and the array substrate has a bending area corresponding to the area for bending and non-bending areas positioned on both sides of the bending area. The array substrate includes a plurality of driving units and a plurality of first connecting lines. The driving units are disposed in the non-bending areas, the first connecting lines are disposed in the bending area, and each of the first connecting lines is connected to two of the driving units positioned on both sides of each of the first connecting lines.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: October 3, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Xue Li
  • DISPLAY DEVICE
    Publication number: 20230305603
    Abstract: The present application relates to a display device that connects two side edges of a flexible display screen to two pivot shafts respectively. When a camera device is turned on, a camera hole and a lens are disposed oppositely. When the camera device is turned off, a portion of a flexible display screen defined with a camera hole is wound around one of the pivot shafts, under a non-photography state of the camera device, the camera hole hidden in a frame body, and the exposed flexible display screen presents a full screen display effect to improve user experience.
    Type: Application
    Filed: June 24, 2021
    Publication date: September 28, 2023
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD..
    Inventor: Yang Hu
  • TOUCH DISPLAY PANEL
    Publication number: 20230305656
    Abstract: A touch display panel is provided, which includes a thin film transistor substrate, a light-emitting layer, an encapsulation layer, and a touch layer. The light-emitting layer includes a cathode. The touch layer includes a plurality of touch sensing electrodes disposed in a same layer. The touch sensing electrodes are connected to a plurality of touch signal lines in a one-to-one correspondence, the touch signal lines are connected to a touch chip, a coupling capacitor is formed between the touch sensing electrodes and the cathode, and the touch chip determines whether there is a touch operation or not by detecting a variation of the coupling capacitor.
    Type: Application
    Filed: October 29, 2020
    Publication date: September 28, 2023
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Bo Li, Yimei Zhang
  • DISPLAY PANEL AND MANUFACTURING METHOD THEREOF
    Publication number: 20230307460
    Abstract: A display panel and a manufacturing method thereof are provided. The display panel includes a non-display area which is provided with a bending area. The bending area includes a substrate layer, a metal wiring layer, and a first planarization layer sequentially disposed. A groove is defined on a surface of the substrate layer away from the metal wiring layer, where a groove wall of the groove extends along a curved surface or a flat surface to a groove bottom of the groove to let an orthographic projection of the groove bottom of the groove on the substrate layer fall within an orthographic projection of an opening of the groove on the substrate layer, so that the metal wiring layer is located in a neutral layer or close to the neutral layer.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 28, 2023
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Lijun Qin
  • DISPLAY PANEL, DRIVING METHOD THEREOF, AND DISPLAY DEVICE
    Publication number: 20230306889
    Abstract: A display panel and a corresponding driving method are provided, including at least an N?1th stage demultiplexing subcircuit and an Nth stage demultiplexing subcircuit. The N?1th stage demultiplexing subcircuit includes at least M N?1th stage demultiplexing units, wherein M and N are both integers not less than 2. By disposing at least two stages of the demuxing subcircuits in cascade, one signal can time-sharingly multiplex to a plurality of signals and correspondingly exponentially reduce a number of signal wirings.
    Type: Application
    Filed: November 13, 2020
    Publication date: September 28, 2023
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Zuomin LIAO, Songpo XIANG
  • Touch control screen and electronic device
    Patent number: 11768555
    Abstract: A touch control screen and an electronic device are disclosed. The touch control screen includes: a plurality of touch control units disposed at intervals, wherein, a material of the touch control units is a transparent conductive material; and a plurality of touch control lead wires corresponding to and connected to the touch control units, wherein, at least one of the touch control units covers at least a part of a multiplexed functional area.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: September 26, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Guochao Wang
  • Flexible display device
    Patent number: 11768519
    Abstract: A flexible display device is provided. A first support member is fixedly disposed with a housing, and a second support member is slidably disposed relative to the first support member. One end of the flexible display screen is connected to one end of the second support member, and the other end of the flexible display screen is connected to a winding mechanism within the housing. A first hard layer between the first support member and the flexible display screen is fixed to one side of the first support member, and a second hard layer between the first hard layer and the flexible display screen is fixed to one side of the second support member.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: September 26, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zikang Feng
  • Support film layer and flexible display panel
    Patent number: 11770907
    Abstract: The present application discloses a support film layer and a flexible display panel. By periodically arranging at least one elliptical hollow structure and a plurality of shuttle-shaped hollow structures in a bending region of the support film layer, stress concentrations in the bending region can be weakened, which is beneficial to increase a bending lifespan of the support film layer. The present application can improve an overall ductility of the flexible display panel, increase a bending performance of the flexible display panel, reduce a risk of peeling and fracture between film layers, and increase production yields of products.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: September 26, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wenqiang Wang
  • Touch display device and touch driving method of same
    Patent number: 11768556
    Abstract: A touch display device and a touch driving method are provided. The touch display device comprises a plurality of interlaced sensing electrodes and driving electrodes in N large groups. Corresponding driving signals synchronously scan the driving electrodes of each large group. Scanning time of the driving electrodes can be reduced to an original 1/N, which can improve a touch report rate.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: September 26, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jian Ye
  • Flexible display module and display device
    Patent number: 11763712
    Abstract: The present application provides a flexible display module. A display area of the flexible display module comprises a plurality of island-shaped structures separated from each other. A bending structure including at least three bending portions is provided to connect the island-shaped structures, which effectively realizes stretching of the flexible display module in three directions of space. At the same time, since the bending structure is connected to one end of one side of the adjacent island-shaped structures, it increases a bending length of the bending structure and a bending space of the flexible display module. The present application also provides a display device comprising the flexible display module.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: September 19, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wenqiang Wang
  • Display panel and manufacturing method thereof
    Patent number: 11765944
    Abstract: A display panel, comprising a first display portion and at least one curved second display portion disposed on at least one side of the first display portion. The display panel further comprises: an array substrate; and a planarization layer, an anode layer, a pixel definition layer, a light-emitting layer, a cathode layer and an encapsulation layer sequentially disposed on the array substrate. The planarization layer comprises a plurality of first surfaces and a plurality of second surfaces, each of the plurality of second surfaces comprises a first end arranged close to the first display portion and a second end arranged away from of the first display portion, a vertical distance between the first end and a bottom of the planarization layer is less than a vertical distance between the second end and the bottom of the planarization layer.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: September 19, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Xiao Du, Huai Zhang
  • DISPLAY DEVICE
    Publication number: 20230292478
    Abstract: The present application provides a display device comprising: a display panel including a display region and a non-display region, wherein the non-display region includes first and second fan-out regions and a bending region; an optical functional film layer formed in the display region and the first fan-out region; an adhesive layer formed on the optical functional film layer; and a protective layer located in the bending region and with a gap with the optical functional film layer, and an end of the adhesive layer extends beyond the optical functional film layer and is connected to the protective layer, and the adhesive layer covers the optical functional film layer, the gap, and part of the protective layer.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 14, 2023
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Kuihua You, Jialiang Tang
  • Display panel including stacked penetrating through-holes
    Patent number: 11758792
    Abstract: A display panel is divided into a display area and a camera area. The camera area includes a first through-hole, a first light-transmitting layer, an inorganic layer, a second through-hole, a second light-transmitting layer, and an image acquisition device. The manufacturing method of the display panel includes a rigid substrate providing step, a flexible substrate forming step, a first etching step, a first light- transmitting layer forming step, a first thin-film transistor (TFT) forming step, a second etching step, a second light-transmitting layer forming step, a second TFT forming step, a rigid substrate stripping step, and an image acquisition device disposing step.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 12, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Fuyang Zhang
  • Foldable automotive display device and vehicle
    Patent number: 11752950
    Abstract: The present invention provides a foldable automotive display device and a vehicle. The display device of the present invention is used for being fixed in a carriage, the display device includes a folded portion and a plurality of unfolded portions located on both sides of the folded portion, two adjacent unfolded portions are rotatably connected by a rotating component, and the rotating component is disposed corresponding to the folded portion. One unfolded portion is used for being fixed on the carriage, and the others fold or unfold the display device by the rotating component.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: September 12, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Qi Ouyang, Mugyeom Kim
  • Polyimide thin film, preparing method thereof, and display device
    Patent number: 11753506
    Abstract: The present disclosure provides a polyimide thin film, a preparing method thereof, and a display device. Specifically, a polyamic acid containing an ester group structure is prepared. The polyamic acid is prepared by a two-step process. A dianhydride containing an ester group structure is introduced into a polyimide to increase the content of benzene ring. Moreover, the introduction of ester groups is conducive to flexibility, which not only improves its heat resistance component, but, by introducing components with longer flexible chains, effectively destroys the regularity of macromolecules, thereby improving the flexibility of the material. Moreover, the introduction of rigid aromatic ring groups facilitates the realization of heat resistance. The ester bond is introduced into the dianhydride through the esterification, and then participates in the preparing of the polyimide material.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: September 12, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamin Wang
  • Flexible display panel and manufacturing method thereof
    Patent number: 11758782
    Abstract: The present invention provides a flexible display panel and a manufacturing method of the flexible display panel. The flexible display panel includes a base substrate, an inorganic layer, an organic filling layer, source/drain metal layer traces, and a planarization layer. The source/drain metal layer traces include a first source/drain metal layer trace in a bending region and a second source/drain metal layer trace in the non-bending region. The first source/drain metal layer trace is a curved trace which can reduce a resistance change of the source/drain metal layer trace caused by bending, and can reduce a risk of breakage.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: September 12, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huihui Zhao