Patents Examined by J. E. Schoenholtz
  • Patent number: 11839135
    Abstract: A display device and a manufacturing method thereof are provided. The display device includes a flexible panel and a protective film. The flexible panel includes a first panel part, a second panel part, and a bendable part connected between the first panel part and the second panel part. The protective film is bonded to a surface on a non-display side of the flexible panel, and includes a first film part bonded to the first panel part and a second film part bonded to the second panel part. The flexible panel is bent at the bendable part so that the first panel part and the second panel part are overlapped in a first direction perpendicular to the surface.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: December 5, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Erjin Zhao, Zhiliang Jiang
  • Patent number: 11832505
    Abstract: A pixel driving circuit and a display panel are provided. The pixel driving circuit includes a control unit to output a control signal by detecting a voltage difference between two opposite ends of a sampling resistor, and to turn on a fourth switch by the control signal. When the fourth switch is turned on, a second positive voltage received by the pixel driving circuit charges a second node to further speed up a voltage pulling up of the second node to improve a detecting speed of the pixel driving circuit.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: November 28, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Hong Fang
  • Patent number: 11825711
    Abstract: A display panel includes a substrate including a display area and a peripheral area around the display area, the display area including a front display area, a corner display area extending from a corner of the front display area, and a middle display area between the front display area and the corner display area, a pixel arranged on the front display area and including a display element, a gate driving circuit arranged on a side of the peripheral area, a data driving circuit arranged on the side on which the gate driving circuit is arranged, a gate line connected to the gate driving circuit and extending to be connected to the pixel, and a data line connected to the data driving circuit and extending to be connected to the pixel.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: November 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sunhwa Lee, Gyungsoon Park, Jaeyong Jang, Yujin Lee
  • Patent number: 11824124
    Abstract: An object is to provide favorable interface characteristics of a thin film transistor including an oxide semiconductor layer without mixing of an impurity such as moisture. Another object is to provide a semiconductor device including a thin film transistor having excellent electric characteristics and high reliability, and a method by which a semiconductor device can be manufactured with high productivity. A main point is to perform oxygen radical treatment on a surface of a gate insulating layer. Accordingly, there is a peak of the oxygen concentration at an interface between the gate insulating layer and a semiconductor layer, and the oxygen concentration of the gate insulating layer has a concentration gradient. The oxygen concentration is increased toward the interface between the gate insulating layer and the semiconductor layer.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: November 21, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto
  • Patent number: 11825701
    Abstract: A display panel and a manufacturing method thereof are provided. The display panel includes a substrate, a barrier layer, a buffer layer, and a thin-film transistor (TFT) array layer. A plurality of first through-holes arranged apart from each other are defined in a display area, a plurality of second through-holes are defined in a bonding area, and the first through-holes and the second through-holes penetrate from an insulating layer to a side of the substrate near the barrier layer. The first through-holes and the second through-holes are filled with a flexible material, thereby improving bending resistance capability of the display panel, and reducing risks of cracking.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: November 21, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Huihui Zhao
  • Patent number: 11825731
    Abstract: A display device including a display panel having a folding area and a bending area, a support member disposed on a bottom surface of the display panel and including a plurality of openings formed in the folding area, an elastic member disposed on a bottom surface of the support member and overlapping the openings in the folding area, and a first adhesive member disposed between the support member and the elastic member.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: November 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Chun Park, Dongcheol Kim, Yun Jae Kim
  • Patent number: 11825727
    Abstract: A method of providing a mask includes providing a first mask layer facing a second mask layer, in the second mask layer, providing a first opening which corresponds to a deposition opening of the mask, providing an auxiliary layer which faces the first mask layer with the second mask layer therebetween and covers the first opening, in the auxiliary layer, providing a second opening which corresponds to the first opening and exposes the first mask layer to outside the auxiliary layer, in the first mask layer, providing a third opening which corresponds to the first opening and the second opening by using the auxiliary layer as a mask and providing the auxiliary layer separated from the first mask layer and the second mask layer to provide the deposition mask having the first mask layer having the third opening and the second mask layer having the first opening.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: November 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seul Lee, Minho Moon, Youngmin Moon, Ji-Hee Son, Seungyong Song, Sungsoon Im
  • Patent number: 11825686
    Abstract: A display apparatus including a substrate; a display area arranged on the substrate and including a plurality of pixels, and a peripheral area arranged outside the display area; a dam surrounding the display area; a crack detector arranged between the dam and an end of the substrate and electrically connected to at least one of the plurality of pixels; a crack prevention dam arranged between the dam and the end of the substrate; and an encapsulation layer including a first inorganic layer, an organic layer, and a second inorganic layer, each covering the display area and a portion of the peripheral area. The first inorganic layer and the second inorganic layer in the encapsulation layer extend to the end of the substrate.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: November 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hun Kim, Changhyun Ko
  • Patent number: 11817020
    Abstract: A method of manufacturing a stretchable display according to an embodiment of the present invention includes preparing a process carrier substrate, forming a flexible substrate on the process carrier substrate, forming a light emitting layer and a driving element controlling the light emitting layer on the flexible substrate, and attaching a stretchable film divided into a low stretchable area and a high stretchable area such that at least a part of the low stretchable area covers at least a part of the driving element in a state in which the high stretchable area is stretched.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: November 14, 2023
    Assignee: Korea University Research and Business Foundation, Sejong Campus
    Inventors: Mun Pyo Hong, Sang Il Kim, Ho Won Yoon, Jeong Sik Yoon
  • Patent number: 11818922
    Abstract: A display substrate motherboard and a preparation method thereof, a display substrate and a preparation method thereof are disclosed. The display substrate motherboard includes a base substrate, a first flexible organic layer, a first inorganic layer, a second flexible organic layer and a pixel driving circuit layer. The pixel driving circuit layer includes a plurality of pixel driving circuit portions respectively used for a plurality of display substrates, and the plurality of pixel driving circuit portions are insulated from each other. An orthogonal projection of the second flexible organic layer on the base substrate is located inside an orthogonal projection of the first inorganic layer on the base substrate. An orthogonal projection of each of the pixel driving circuit portions on the base substrate is located inside the orthogonal projection of the second flexible organic layer on the base substrate.
    Type: Grant
    Filed: September 29, 2019
    Date of Patent: November 14, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jun Yu, Zhong Lu, Zhenrui Fan, Shuohua Chen, Zhaoyang Song, Chenlin Yin, Yongjie Tang
  • Patent number: 11818906
    Abstract: A display device includes a first substrate 11, a second substrate 12, and a plurality of light emitting elements 10. Light is emitted via the second substrate 12. Each of the light emitting elements 10 is formed by laminating, from a side of the first substrate, a first electrode 51, an organic layer 70 having a light emitting layer, a second electrode 52, and a sealing layer 15. A light diffusion layer 80 containing fine particles 81 is formed between the sealing layer 15 and the second substrate 12. Orthographic images of the fine particles 81 in the light diffusion layer 80 do not overlap each other on the second substrate 12. Alternatively, the light diffusion layer is formed between the sealing layer and the second substrate, and the light diffusion layer includes a flat portion and a plurality of protruding portions each constituted by a part of a spherical surface protruding from the flat portion.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 14, 2023
    Assignee: Sony Group Corporation
    Inventors: Kouhei Sugiyama, Toshihiro Fukuda, Shinichi Tanaka
  • Patent number: 11812654
    Abstract: A lamination device includes a first jig in which a window is disposed, where a recessed part is defined in a bottom surface of the first jig, and the window is disposed in the recessed part, and a second jig including a seated part disposed in the recessed part, where a display panel is disposed on the seated part to face the window. A through-hole extending from a side surface of the first jig to the recessed part of the first jig is defined in the first jig.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: November 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyu-Ho Jung, Kyungrok Ko
  • Patent number: 11811002
    Abstract: According to an aspect, a display device includes: a substrate; a plurality of pixels provided on the substrate; and a first light emitting element and a second light emitting element that are included in each of the pixels. A light emitting layer of the first light emitting element includes gallium nitride to which europium is added, and a light emitting layer of the second light emitting element includes a multi-quantum well structure in which indium gallium nitride and gallium nitride are layered.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: November 7, 2023
    Assignee: Japan Display Inc.
    Inventors: Masanobu Ikeda, Osamu Ito, Yasuhiro Kanaya, Tadafumi Ozaki
  • Patent number: 11805679
    Abstract: A substrate and a display device. The substrate includes: a hole region including a plurality of holes penetrating the substrate; and a non-hole region including a plurality of connection portions and a plurality of pixel regions separated from each other. Each connection portion is between adjacent pixel regions to connect the adjacent pixel regions, wherein a straight line in any direction parallel to the substrate passes through the hole region and the plurality of holes include at least two holes having different deformation degrees.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: October 31, 2023
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Pinfan Wang, Ming Che Hsieh
  • Patent number: 11800758
    Abstract: A display device includes a fan-out portion including a first fan-out portion including first conductive lines, and a second fan-out portion including second conductive lines. The first conductive lines are apart from each other by a first pitch in a bending area of a substrate of the display device. The second conductive lines are apart from each other by a second pitch in the bending area.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: October 24, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junyoung Jo, Ilgoo Youn, Jieun Lee, Minhee Choi
  • Patent number: 11800735
    Abstract: A flexible display module includes a back film, and a flexible display screen and a protective cover plate that are sequentially stacked on a side of the back film. The protective cover plate includes a cover plate body and at least one arc-shaped extension portion. An end of an arc-shaped extension portion is connected to a side face of the cover plate body. An end of the arc-shaped extension portion away from the cover plate body extends beyond an edge of the flexible display screen and an edge of the back film. An arc-shaped concave surface of the arc-shaped extension portion faces a side face of the flexible display screen and a side face of the back film that are proximate to the arc-shaped extension portion.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: October 24, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jiahao Zhang, Paoming Tsai, Hong Zhu
  • Patent number: 11800777
    Abstract: The present application relates to a display device. The display device includes a flexible display panel including display and back surfaces in a thickness direction thereof; a supporting back film located on the back surface, and including a bendable area and fixed areas located at opposite sides of the bendable area in a first direction; and an adhesive part located between the fixed area and the back surface, and adhered to the fixed area and the back surface; and a flexible supporting part located between the bendable area and the back surface, and being in contact with the bendable area and the back surface. The flexible supporting part is in direct contact with the back surface of the flexible display panel.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: October 24, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Na Zhang, Bin Zhang, Jing Wang
  • Patent number: 11793013
    Abstract: A flexible display panel and a fabricating method thereof are described. The fabricating method has steps of: providing a substrate comprising a hard state and a soft state; forming a thin-film transistor layer on a side of the substrate in the hard state; forming an organic light-emitting layer on a side of the thin-film transistor layer away from the substrate; forming an encapsulation layer on a side of the organic light-emitting layer away from the thin-film transistor; wherein, after laying of each film layer in the flexible display panel, a photoinitiator layer is formed on a side of the substrate away from the thin-film transistor layer, and the substrate and the photoinitiator layer are irradiated with the preset ultraviolet light to change the substrate from the hard state to the soft state to obtain the flexible display panel. The fabricating method avoids problems caused by using laser lift-off technology.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: October 17, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jing Liu
  • Patent number: 11793056
    Abstract: An organic light emitting diode (OLED) device structure and a manufacturing method thereof are provided. The OLED device structure includes a base layer, an array segment film layer, an organic light emitting layer, a thin film packing layer, a touch layer, a polarizer, a cover glass, a composite material layer, and a foam copper foil layer. The OLED device structure can solve problems of low penetration rate, poor heat dissipation, buffer layers are easy to peel, and easy breakage in backplane layers of current OLED panels.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: October 17, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jiajia Sun
  • Patent number: 11793042
    Abstract: The present application provides a display panel and a fabrication method thereof. In the display panel, a bonding module covers a display area and an extension area, and a bonding conductive layer of the bonding module is electrically connected to an external driving chip. A display module covers the display area and the extension area, the display module comprises a thin film transistor array structure, and the thin film transistor array structure comprises a source-drain conductive layer. A portion of the source-drain conductive layer in the extension area is electrically connected to the bonding conductive layer by a through hole.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: October 17, 2023
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Jing Zhou, Yixian Zhang, Wenxu Xianyu