Patents Assigned to Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD.
  • Publication number: 20240155888
    Abstract: A display substrate, a method for fabricating the same, and a vapor deposition apparatus are provided. The display substrate comprises two first overlapping areas, and further comprises a light-emitting functional layer and an electrode layer. The light-emitting functional layer comprises two second portions respectively located in the two first overlapping areas and each comprising a plurality of first blocks. The electrode layer comprises two fourth portions respectively located in the two first overlapping areas and each comprising a plurality of second blocks. In one same first overlapping area, each of the first blocks does not overlap at least partially with one of the second blocks.
    Type: Application
    Filed: April 20, 2022
    Publication date: May 9, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jianbing Ou
  • Publication number: 20240155851
    Abstract: The present invention provides an array substrate, a method for manufacturing the array substrate, and a display panel. The array substrate includes a driving transistor, and the driving transistor includes: a gate electrode; an active layer arranged opposite to a position of the gate electrode, the active layer includes a first semiconductor and second semiconductors, the second semiconductors are in contact with the first semiconductor to form a first PN junction and a second PN junction respectively, and the first PN junction corresponds to the source electrode; and a source drain layer, including a source electrode and a drain electrode. The second semiconductors are electrically connected with the source electrode and drain electrode, respectively.
    Type: Application
    Filed: April 13, 2022
    Publication date: May 9, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Juncheng Xiao, Jianwei Fang, Bin Zhao
  • Patent number: 11972734
    Abstract: The present application provides a pixel driving circuit and a display panel. The pixel driving circuit includes a light emitting device, a voltage conversion module electrically connected to the light emitting device via a first node, a driving module electrically connected to the light emitting device via a second node, a data writing module electrically connected to the driving module via a fourth node, a first potential coupling module electrically connected to the second node and the third node, a second potential coupling module, and a first voltage terminal. Before the driving module controls a moment when the light emitting device starts to emit light, the voltage conversion module controls the potential of the first node to change from a first voltage to a second voltage, first potential coupling module couples potential of the third node, and second potential coupling module couples potential of the fourth node.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: April 30, 2024
    Assignee: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zhengbo Cui
  • Publication number: 20240136360
    Abstract: An array substrate, a manufacturing method of the array substrate, and a display panel are provided. The array substrate includes a metal light-shielding layer, a buffer layer an active layer, an interlayer insulating layer, and a source-drain electrode layer, a plurality of first via holes are disposed in the interlayer insulating layer, the active layer includes a metal oxide body layer and an etching barrier layer disposed on a surface of the metal oxide body layer, the etching barrier layer includes a plurality of first etching barrier sections corresponding to the first via holes, and the source-drain electrode layer is electrically connected to the metal oxide body layer through the first etching barrier sections.
    Type: Application
    Filed: December 27, 2022
    Publication date: April 25, 2024
    Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Mingjiue YU, Zhixiong JIANG, Lanlan LI
  • Publication number: 20240126126
    Abstract: An array substrate includes a first electrode, scanning lines extending along a first direction, data lines, and common signal lines. The data lines and the common signal lines extend along a second direction. The first electrode includes a first and a second sub-electrode. Each data line is disposed between two common signal lines. Two scanning lines, two common signal lines, and a data line define a first and a second sub-pixel area. The first and the second sub-electrode are disposed within the first and the second sub-pixel area respectively. The first sub-electrode includes a first main portion disposed close to a common signal line and first branch portions spaced along the second direction. A first space is defined between two adjacent first branch portions. Ends of the first branch portions are connected to the first main portion. Another ends of the first branch portions are spaced with a first space.
    Type: Application
    Filed: December 29, 2022
    Publication date: April 18, 2024
    Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD.
    Inventors: Xinru YAO, Li XU, Chengcai DONG, Juncheng XIAO
  • Publication number: 20240128271
    Abstract: Provided is a array substrate, a manufacturing method thereof, and a display panel. The array substrate comprises a laminated substrate, a first insulating layer, a second insulating layer, and a third insulating layer, wherein a horizontal etching rate of the second insulating layer is less than that of the first insulating layer and the third insulating layer. The array substrate comprises a first region provided with a first type of via holes and a second region provided with a second type of via holes, the first type of via holes penetrates through the first, second and third insulating layers, and the second type of via holes penetrates through the third insulating layer. In the present disclosure, undercut structures formed in the first type of via holes can be eliminated through two etching processes, thus avoiding over-etching of the second type of via holes.
    Type: Application
    Filed: November 20, 2022
    Publication date: April 18, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Hang WANG
  • Publication number: 20240128377
    Abstract: A display panel includes a gate electrode, a source electrode, a drain electrode, and a metal oxide layer disposed corresponding to the gate electrode. The metal oxide layer includes a lower metal oxide layer and an upper metal oxide layer stacked on the lower metal oxide layer. The lower metal oxide layer includes an indium oxide and a lanthanoid oxide. The upper metal oxide layer is located on a surface of the lower metal oxide layer adjacent to the source electrode and the drain electrode. The source electrode and the drain electrode are connected to the upper metal oxide layer. The upper metal oxide layer includes an indium oxide and a lanthanoid oxide, and the upper metal oxide layer includes polycrystalline phase.
    Type: Application
    Filed: December 30, 2022
    Publication date: April 18, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jiahui Huang, Zhixiong Jiang, Qiang Wang, Cheng Gong, Mingjiue Yu, Zhihui Cai
  • Publication number: 20240126114
    Abstract: A display panel and a display device are provided. The display panel includes a first substrate, a second substrate, and a sealant layer. The first substrate includes a ground electrode positioned in a frame region. The second substrate includes a black matrix layer and a protective layer. The protective layer is positioned on a side surface of the black matrix layer close to the first substrate. In the present application, at least one opening is arranged on the protective layer positioned in the frame region, so that the black matrix layer is exposed. By arranging the conductive adhesive in the sealant layer or forming the sealant layer with the conductive adhesive, the black matrix layer can be electrically connected to the ground electrode of the first substrate through the conductive adhesive.
    Type: Application
    Filed: November 17, 2022
    Publication date: April 18, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yanan WANG
  • Publication number: 20240113129
    Abstract: A display panel and a method for fabricating the same are provided. The display panel includes a transistor layer. The transistor layer includes an oxide active layer and a first photocatalytic layer that are stacked. The first photocatalytic layer is made of a first material and a second material. A conduction band energy level of the first material is staggered from a conduction band energy level of the second material, or a valence band energy level of the first material is staggered from a valence band energy level of the second material. At least one of the conduction band energy level of the first material and the conduction band energy level of the second material is less than 0 eV.
    Type: Application
    Filed: March 2, 2022
    Publication date: April 4, 2024
    Applicant: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD.
    Inventor: Qi LIU
  • Publication number: 20240053646
    Abstract: An array substrate and a display panel are disclosed. The array substrate includes a substrate, a first metal layer, a gate insulating layer, a semiconductor layer, and a second metal layer. The second metal layer includes a first block layer, a conductive layer, and a second block layer. By setting a redox potential of the first block layer to be less than a redox potential of the conductive layer, the first block layer is easier to be etched during galvanic corrosion compared with the conductive layer. Therefore, a taper angle of the second metal layer is reduced, and a tip is eliminated.
    Type: Application
    Filed: March 15, 2022
    Publication date: February 15, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jianqiang Sun
  • Publication number: 20240047467
    Abstract: An array substrate and a display panel are disclosed. The display panel includes the array substrate. An ion injection stopper layer and an active layer of the array substrate correspond to at least part of the channel part. The ion injection stopper layer blocks ions from being injected into the channel part. Therefore, an effective channel length of oxide TFTs is reduced. A width of a channel of the oxide TFTs can be reduced without changing a width-length ratio of the oxide TFTs. As such, a size of the oxide TFTs can be reduced, and an aperture ratio of the display panel is increased.
    Type: Application
    Filed: March 21, 2022
    Publication date: February 8, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jun Zhao, Wei Wu, Bin Zhao, Juncheng Xiao
  • Publication number: 20240036410
    Abstract: The present application discloses a display panel, a manufacturing method thereof, and a display device. The display panel includes a substrate; a gate layer; a gate insulating layer; an active layer; a source-drain layer including a source electrode and a drain electrode; a passivation layer provided with a contact hole; and a pixel electrode layer connected to the drain electrode through the contact hole; wherein a light-transmitting etch stop layer is disposed at a hole bottom of the contact hole, and the light-transmitting etch stop layer at least partially covers a hole bottom of the contact hole.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 1, 2024
    Applicant: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yi ZHANG, Shimin GE
  • Patent number: 11841524
    Abstract: A backlight module and a display device are disclosed. The backlight module includes a backlight light board assembly, a reflective layer, and a light-transmitting layer. The backlight light board assembly includes at least two backlight light boards spliced to each other, a splicing gap is defined between two backlight light boards spliced to each other, the reflective layer covers the splicing gap, and the light-transmitting layer is disposed on one side of the reflective layer away from the splicing gap. By disposing the reflective layer and the light-transmitting layer, light can be reflected to the light-transmitting layer by the reflective layer, thereby improving a light extraction effect at the splicing gap.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: December 12, 2023
    Assignee: GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Hao Wang
  • Patent number: 11762249
    Abstract: A display panel is provided, including an opposing substrate, a liquid crystal layer, and an array substrate, and the liquid crystal layer is disposed between the opposing substrate and the array substrate. The array substrate includes a substrate, a first metal layer, a first insulating layer, a second metal layer, a second insulating layer, a passivation layer, and a third metal layer. The second metal layer includes a first electrode, and the first electrode is one of a pixel electrode and a common electrode. The third metal layer includes a second electrode, and the second electrode is the other one of the pixel electrode and the common electrode. By disposing the first electrode and the second electrode between the first insulating layer and the second insulating layer, a sum of thicknesses of the first insulating layer and the second insulating layer can remain a first predetermined thickness.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: September 19, 2023
    Assignee: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD.
    Inventors: Jianwei Fang, Ning Zhang
  • Patent number: 11705464
    Abstract: A display panel and a display device are provided, wherein an insulating layer covers a substrate and a first metal layer, and wherein the insulating layer includes a protruding portion covering a first signal transmission portion. A second metal layer is disposed on a side of the insulating layer away from the first metal layer and includes a second signal transmission portion, wherein the second signal transmission portion covers at least part of a sidewall of the protruding portion. The protruding portion includes a first sub-layer, a second sub-layer, and a first hole arranged at a sidewall of the protruding portion, wherein the first sub-layer is positioned on a side of the second sub-layer away from the first signal transmission portion, and wherein the second signal transmission portion extends into the first hole and contacts the second sub-layer.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: July 18, 2023
    Assignee: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD.
    Inventor: Yanhong Meng