Patents Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
  • Flexible display panel and electronic device
    Patent number: 11925061
    Abstract: The application provides a flexible display panel and an electronic device. The flexible display panel includes a plurality of pixel groups. The pixel groups include a plurality of pixels arranged in a first direction. The flexible display panel also includes: a substrate; a semiconductor layer; a gate electrode; a metal part; and a first insulating layer arranged on the metal part. The first insulating layer is provided with at least one first groove, and a position of the first groove corresponds to a position of a gap between two adjacent pixel groups.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: March 5, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Jianfeng Chen, Shuyuan Zhang
  • Method of manufacturing display panel
    Patent number: 11925050
    Abstract: A method of manufacturing a display panel includes fabricating a display portion on a glass substrate; adhering a protection film on the glass substrate outside the display portion, and the protection film having an opening accommodating the display portion; forming an encapsulation film on the protection film and the display portion; and obtaining a panel area by removing the protection film and the encapsulation film outside a predetermined limited area on the glass substrate. The predetermined limited area corresponds to the display portion.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 5, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Lei Zhao
  • DISPLAY PANEL AND DISPLAY DEVICE
    Publication number: 20240074252
    Abstract: A display panel and a display device are provided. The display panel includes a shielding layer, a pixel driving circuit layer located on the shielding layer and including a plurality of pixel driving circuits at least partially overlapping the shielding layer, and a power supply line electrically connected to a plurality of through holes of the shielding layer disposed in the pixel driving circuit layer. A converging line between adjacent through holes are arranged according to a shortest distance between the adjacent through holes.
    Type: Application
    Filed: March 22, 2022
    Publication date: February 29, 2024
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Xing WU
  • DISPLAY PANEL
    Publication number: 20240074275
    Abstract: A display panel includes an array substrate, a light-emitting layer, a passivation layer and a color filter layer. The passivation layer includes a pixel opening disposed in correspondence with at least a portion of the light-emitting pixel. The color filter layer includes a color resist corresponding to the light-emitting pixel, and a light-obstructing part provided with a light transmission opening corresponding to the light-emitting pixel. A refractive index of the color resist is greater than a refractive index of the passivation layer, thereby increasing a light output rate and a display effect of the display panel through a multilayer structure.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 29, 2024
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Jiaxu YAO
  • Organic light emitting diode display device and method of manufacturing thereof
    Patent number: 11917868
    Abstract: An organic light emitting diode (OLED) display device and a method of manufacturing thereof are provided. The organic light emitting diode display device includes a display area and a non-display area. The display area includes a pixel area and a photosensitive area disposed between the pixel areas. The photosensitive area includes a first thin film transistor. The pixel area includes a second thin film transistor, which the same type as the first thin film transistor. The non-display area includes a third thin film transistor, which is a different type from the first thin film transistor.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xuyang Liu, Chao Liang
  • Method of manufacturing display panel
    Patent number: 11917860
    Abstract: A method of manufacturing a display panel includes fabricating a display portion on a glass substrate; forming a barrier layer on the glass substrate outside the display portion; forming an encapsulation film on the barrier layer and the display portion; and obtaining a panel area by removing the barrier layer and the encapsulation film outside a predetermined limited area on the glass substrate. The predetermined limited area corresponds to the display portion.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Lei Zhao, Gaozhen Wang
  • Display device
    Patent number: 11917861
    Abstract: A display device is provided, wherein a metal reflective pattern formed at intervals between a plurality of pixel driving circuits is equivalent to or is similar to a first predetermined metal pattern in an area corresponding to the plurality of pixel driving circuits, thereby making reflectance of a transitional display area uniform, and thereby solving a technical problem of uneven brightness in a display device under dark conditions.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Xue Li
  • Display panel, display device, and driving method thereof
    Patent number: 11917854
    Abstract: A display panel, a display device, and a driving method thereof are provided. A light-reflecting layer is disposed under a light-emitting layer of the display panel. When the display panel is under strong light, the light-emitting layer does not work, and the light-reflecting layer reflects natural light to achieve a full-color display. When the display panel is in low light or darkness, the light-emitting layer works, and the light-reflecting layer reflects the light emitted by the light-emitting layer to reduce a working intensity of the light-emitting layer and achieves the full-color display, thereby improving service life and visual effect of organic light emitting diodes (OLEDs).
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: February 27, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Xian Li
  • Chip-on-film packaging structure and chip-on-film packaging method
    Patent number: 11916008
    Abstract: The present invention provides a chip-on-film (COF) packaging structure and a COF packaging method. The COF packaging structure includes a flexible substrate and a chip. The flexible substrate includes a first groove provided on a first surface of the flexible substrate, a protrusion provided in the first groove, and a substrate bonding pad disposed in the first groove. The chip includes a second groove provided on a second surface of the chip, and a chip bonding pad disposed on the second surface and corresponding to the substrate bonding pad. The first groove of the flexible substrate is matched with a peripheral shape of the chip, and the second groove is matched with the protrusion of the first groove to embed the chip in the flexible substrate. The chip bonding pad is electrically connected to the substrate bonding pad.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yicheng Chen, Hong Wen
  • Flexible display panel with hollow structure
    Patent number: 11917889
    Abstract: A flexible display panel is provided, which includes a base substrate, a thin film transistor (TFT) array layer, and an encapsulation layer. The TFT array layer includes an inorganic layer. An organic layer is disposed on the TFT array layer in a non-display region. The organic layer is defined with a hollow structure at least penetrating the organic layer and the encapsulation layer covers the hollow structure. The organic layer includes a planarization layer, a pixel definition layer, and a support layer. The hollow structure includes grooves with different groove levels, which improves a bending resistance of the flexible display panel and prevents cracks from extending to a display region.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: February 27, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: E Chen
  • Flexible display panel, manufacturing method thereof, and flexible display device
    Patent number: 11915623
    Abstract: A flexible display module, a manufacturing method thereof, and a flexible display device are provided. The flexible display module includes a flexible display panel; a back plate, a buffer material layer, a first adhesive layer, and a metal plate under the flexible display panel; a polarizer, a second adhesive layer, and a cover plate on the flexible display panel. The back plate is positioned in a non-bending area. The buffer material layer is positioned in a bending area and is disposed in a same layer as the back plate. A side of the first adhesive layer is bonded to the back plate and the buffer material layer, and another side thereof is bonded to the metal plate.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Kang Zhao
  • Foldable display device
    Patent number: 11917778
    Abstract: A foldable display device includes a first casing and a second casing. The first casing is rotatable about a first rotation center, and the second casing is rotatable about a second rotation center. Coordinates of an orthographic projection of the first rotation center on an xoy coordinate plane are (x1, y1), and coordinates of an orthographic projection of the second rotation center on the xoy coordinate plane are (?x1, y1). A predetermined value is defined by a sum of coordinate values x1 and y1, the coordinate value x1 is greater than zero, and the coordinate value y1 is greater than ?0.3 millimeter (mm) and less than or equal to one mm.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: February 27, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zikang Feng
  • Display panel and display device
    Patent number: 11917890
    Abstract: The present invention provides a display panel and a display device. The display panel includes a transparent substrate and a polyimide (PI) substrate. The PI substrate is placed at one side of the transparent substrate. An uneven structure is provided inside the PI substrate or arranged on one side of the PI substrate facing the transparent substrate.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: February 27, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Simin Peng
  • Pixel circuit and display panel
    Patent number: 11915649
    Abstract: Embodiments of the present disclosure are directed to a pixel circuit and a display panel. The pixel circuit includes a light-emitting device, a driving transistor, a data signal writing module, a threshold voltage compensation module, a first initialization module, a light-emitting control module, and a coupling capacitor. By adding a coupling capacitor in the pixel circuit, the gate potential of the driving transistor is maintained at the initial value under a long period of display.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Dachao Liu, Mian Zeng, Liang Sun
  • Touch display panel and display device
    Patent number: 11914826
    Abstract: The present application provides a touch display panel and a display device. A plurality of touch units of the touch display panel includes a plurality of first electrode sets, a plurality of second electrode sets, and dummy electrodes. The first electrode sets include a plurality of first electrodes, the second electrode sets include a plurality of second electrodes. The first electrodes, the second electrodes, and the dummy electrodes are disposed insulatively from one another. The dummy electrodes are disposed in dummy electrode regions surrounded and formed by the first electrode sets and the second electrode sets.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jian Ye
  • Stretchable display module and manufacturing method thereof
    Patent number: 11916052
    Abstract: A stretchable display module and a manufacturing method thereof are provided. The stretchable display module includes a display layer including a plurality of display islands arranged and spaced apart from each other, wherein two of the adjacent display islands are electrically connected by a connecting wire; a transparent adhesive layer including a filling adhesive layer filled in a spacing region between the display islands, a first adhesive layer disposed on a surface of the display layer opposite an emitting direction of the display layer, and a second adhesive layer disposed on a surface of the display layer in the emitting direction.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Li Hu, Bingkun Yin
  • Array substrate, manufacturing method thereof, and display panel
    Patent number: 11916082
    Abstract: An array substrate, a manufacturing method thereof, and a display panel are provided. The array substrate includes a bending area and a non-bending area, and further includes an inorganic stacked layer disposed on a substrate layer. A recess is formed on the inorganic stacked layer in the bending area. A plurality of first metal lines are disposed in the inorganic stacked layer at two sides of the bending area. A filling layer is filled in the recess. The array substrate further includes a second metal line disposed on the inorganic stacked layer and the filling layer, and the first metal lines at the two sides of the bending area form a lap joint by the second metal line.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: February 27, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Huihui Zhao, Changbum Park
  • TOUCH DISPLAY PANEL AND METHOD FOR MEASURING TOUCH POINT THEREOF
    Publication number: 20240061528
    Abstract: A touch display panel and method for measuring touch points are provided. The coordinate of each of touch points located in a first sub-display region and a second sub-display region can be measured by a first touch chip and a second touch chip respectively. When it is necessary to use the coordinates of the touch points located in the second sub-display region for joint calculation for obtaining the coordinates of the touch points located in the first sub-display region, the data can all be obtained through the first touch chip. When it is necessary to use the coordinates of the touch points located in the first sub-display region for joint calculation for obtaining the coordinates of the touch points located in the second sub-display region, the data can all be obtained through the second touch chip, thereby ensuring the unity of data sources, and increasing data accuracy.
    Type: Application
    Filed: November 30, 2021
    Publication date: February 22, 2024
    Applicant: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGIES CO., LTD.
    Inventors: Zengjian JIN, Yalong MA
  • Display panel and display device
    Patent number: 11908228
    Abstract: The present disclosure discloses a display panel and a display device. The display panel includes a display substrate, the display substrate includes a plurality of pixel units; and a touch layer and a fingerprint recognition layer disposed on the display substrate; wherein, the touch layer includes at least one touch unit; the fingerprint recognition layer includes at least one primary fingerprint recognition unit, each of the primary fingerprint recognition units includes NSFPS sub-fingerprint recognition units corresponding to Npixel pixel units, where NSFPS, Npixel are positive integers.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: February 20, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Bi Chen
  • Display panel and flexible display device
    Patent number: 11908349
    Abstract: A display panel and a flexible display device are provided. The display panel includes a substrate, a first adhesive layer, a display layer, and a protective layer. The display layer includes an array layer and a light-emitting device layer. The array layer is disposed directly on the first adhesive layer, and a grid structure is disposed on the substrate. Neither a backplane nor a pressure-sensitive adhesive layer is disposed on the display panel, which allows effectively manufacture a thin display panel, reduces the film layers of the panel, and improves the flexibility of the display panel.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: February 20, 2024
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Yong Zhao, Wen Han