Patents by Inventor Jonguk Kwak

Jonguk Kwak 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: 20250037670
    Abstract: A display substrate includes an underlay substrate, and a first semiconductor layer, first conductive layer, second semiconductor layer, second conductive layer, and third conductive layer which are arranged on the underlay substrate. The first semiconductor layer includes an active layer of at least one transistor of a second semiconductor type of a shift register unit. The first conductive layer includes a control electrode of the at least one transistor of the second semiconductor type and a first electrode of at least one capacitor of the shift register unit. The second semiconductor layer includes an active layer of at least one transistor of a first semiconductor type of the shift register unit. The second conductive layer includes a control electrode of the at least one transistor of the first semiconductor type and a second electrode of the at least one capacitor of the shift register unit.
    Type: Application
    Filed: October 17, 2024
    Publication date: January 30, 2025
    Inventors: Teng CHEN, Faming JIANG, Ri CHEN, Xinxing JIA, Weixin MENG, Jonguk KWAK
  • Patent number: 12154510
    Abstract: A display substrate includes an underlay substrate, and a first semiconductor layer, first conductive layer, second semiconductor layer, second conductive layer, and third conductive layer which are arranged on the underlay substrate. The first semiconductor layer includes an active layer of at least one transistor of a second semiconductor type of a shift register unit. The first conductive layer includes a control electrode of the at least one transistor of the second semiconductor type and a first electrode of at least one capacitor of the shift register unit. The second semiconductor layer includes an active layer of at least one transistor of a first semiconductor type of the shift register unit. The second conductive layer includes a control electrode of the at least one transistor of the first semiconductor type and a second electrode of the at least one capacitor of the shift register unit.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: November 26, 2024
    Assignees: Chongqing BOE Display Technology Co.,Ltd., BOE Technology Group Co., Ltd.
    Inventors: Teng Chen, Faming Jiang, Ri Chen, Xinxing Jia, Weixin Meng, Jonguk Kwak
  • Publication number: 20240224640
    Abstract: A display panel includes a base substrate, an active pattern layer and a first conductive layer. The active pattern layer is disposed on the base substrate, and includes at least one first conductive connection line. The first conductive layer is disposed on a side of the active pattern layer away from the base substrate. The first conductive layer includes at least one connection line extending along a first direction, and a plurality of initialization signal lines arranged along the first direction and extending along a second direction. An end of each initialization signal line is coupled to a connection line in the at least one connection line. The first direction and the second direction intersect. A first conductive connection line in the at least one first conductive connection line is coupled to at least two initialization signal lines that are coupled to a same connection line.
    Type: Application
    Filed: November 23, 2021
    Publication date: July 4, 2024
    Applicants: Chongqing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinwei WU, Wei ZHANG, Yanyan XU, Cunzhi LI, Jonguk KWAK, Ning ZHAO
  • Patent number: 11893943
    Abstract: A shift register unit includes an input circuit, a first control circuit, a second control circuit, and an output circuit. The input circuit is configured to provide a signal of a first clock signal line or a first power line to a first control node. The first control circuit is configured to provide a signal of the first power line or a second power line to a first output terminal. The second control circuit is configured to provide a signal of the first power line or the second power line to a second output terminal. The output circuit is configured to output an effective level signal of the first power line or the second power line to a third output terminal.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: February 6, 2024
    Assignees: Chongqing BOE Display Technology Co.,Ltd., BOE Technology Group Co., Ltd.
    Inventors: Teng Chen, Faming Jiang, Ri Chen, Xinxing Jia, Weixin Meng, Jonguk Kwak
  • Publication number: 20230337507
    Abstract: A display substrate includes a cut-out area; a display region; and an isolation region including an isolation pillar and at least two packing dams; a base substrate; a barrier layer; a buffer layer; a first gate insulation layer; a second gate insulation layer; and an interlayer insulation layer. The isolation pillar is formed of a portion of the barrier layer, a portion of the buffer layer, a portion of the first gate insulation layer, a portion of the second gate insulation layer, and a portion the interlayer insulation layer. A side of the side end surface proximal to the substrate is indented inward compared to the side facing away from the substrate. A light emitting layer on the side of the structural layer facing away from the substrate is discontinuous at least at a position having an indented structure.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 19, 2023
    Applicants: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinwei WU, Zhen ZHANG, Wei ZHANG, Jonguk KWAK, Cunzhi LI
  • Patent number: 11785802
    Abstract: A display panel includes an array substrate, an OLED light-emitting layer and a color filter structure laminated in sequence, the color filter structure including a color filter layer, a black matrix and a heat conducting layer, wherein the color filter layer and the black matrix are disposed in a same layer, the heat conducting layer is disposed on at least one side of the black matrix and configured to conduct heat from the black matrix to a periphery of the color filter structure.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: October 10, 2023
    Assignees: Chongqing BOE Display Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Teng Chen, Shicheng Sun, Bo Yang, Weixin Meng, Jonguk Kwak
  • Publication number: 20230317015
    Abstract: A display substrate includes an underlay substrate, and a first semiconductor layer, first conductive layer, second semiconductor layer, second conductive layer, and third conductive layer which are arranged on the underlay substrate. The first semiconductor layer includes an active layer of at least one transistor of a second semiconductor type of a shift register unit. The first conductive layer includes a control electrode of the at least one transistor of the second semiconductor type and a first electrode of at least one capacitor of the shift register unit. The second semiconductor layer includes an active layer of at least one transistor of a first semiconductor type of the shift register unit. The second conductive layer includes a control electrode of the at least one transistor of the first semiconductor type and a second electrode of the at least one capacitor of the shift register unit.
    Type: Application
    Filed: January 26, 2021
    Publication date: October 5, 2023
    Inventors: Teng CHEN, Faming JIANG, Ri CHEN, Xinxing JIA, Weixin MENG, Jonguk KWAK
  • Publication number: 20230260462
    Abstract: A shift register unit includes an input circuit, a first control circuit, a second control circuit, and an output circuit. The input circuit is configured to provide a signal of a first clock signal line or a first power line to a first control node. The first control circuit is configured to provide a signal of the first power line or a second power line to a first output terminal. The second control circuit is configured to provide a signal of the first power line or the second power line to a second output terminal. The output circuit is configured to output an effective level signal of the first power line or the second power line to a third output terminal.
    Type: Application
    Filed: January 26, 2021
    Publication date: August 17, 2023
    Inventors: Teng CHEN, Faming JIANG, Ri CHEN, Xinxing JIA, Weixin MENG, Jonguk KWAK
  • Patent number: 11723232
    Abstract: An organic light-emitting display panel is provided. The organic light-emitting display panel includes a substrate and a plurality of pixel units disposed on a side of the substrate, wherein the pixel unit includes an organic light-emitting diode (OLED); the substrate has a first pixel density area and a second pixel density area, and a density of pixel units in the first pixel density area is greater than that of pixel units in the second pixel density area; and in the second pixel density area, a light-emitting surface of the OLED protrudes along a light-emitting direction of the OLED.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: August 8, 2023
    Assignees: Chongqing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xinwei Wu, Wei Zhang, Yanyan Xu, Cunzhi Li, Dawei Shi, Dongsheng Zhao, Jonguk Kwak
  • Publication number: 20230172034
    Abstract: Disclosed are a display panel, a display device, and a manufacturing method. The display panel includes: a base substrate including multiple island regions, an opening region, and a bridge region, each of the island regions having at least one pixel; an inorganic packaging layer on a side of the base substrate, the inorganic packaging layer covering the island regions and the bridge regions and having a first hollowed-out structure, and the orthographic projection of the first hollowed-out structure on the base substrate covering the orthographic projection of the opening regions on the base substrate; and an organic packaging layer located on the side of the inorganic packaging layer facing away from the base substrate and having a second hollowed-out structure, the orthographic projection of the second hollowed-out structure on the base substrate covering the orthographic projection of the first hollowed-out structure on the base substrate.
    Type: Application
    Filed: June 8, 2021
    Publication date: June 1, 2023
    Inventors: Shuanzhu LI, Weixin MENG, Chao YANG, Desheng RUAN, Yucheng CHAN, Jonguk KWAK
  • Publication number: 20230111654
    Abstract: A flexible support plate and a flexible display device. The flexible support plate comprises an opening area (2) and at least one solid area (1) arranged on at least one side of the opening area (2), wherein the opening area (2) is provided with a plurality of through holes (3); the opening area (2) comprises a central area (21) and a transition area (22); the transition area (22) is arranged between the central area (21) and the solid area (1); and the width of the transition area (22) decreases as the distance from the central area (21) increases. When the flexible support plate is bent, the transition area (22) gradually deforms, and the stress is also gradual, without a sudden change, that is, the stress changes relatively uniformly, thereby avoiding hard-angle bending caused by a sudden stress change during bending, and accordingly avoiding problems of film-layer separation and cracks. The flexible support plate can be applied to flexible display devices with smaller bending radii.
    Type: Application
    Filed: November 15, 2021
    Publication date: April 13, 2023
    Applicants: Chongqing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Shaoru LI, Rui WANG, Jian GUO, Jonguk KWAK
  • Patent number: 11605323
    Abstract: The present application provides a display panel, a manufacturing method, a detection method, and a display device. The display panel includes a display area and a non-display area surrounding the display area. The non-display area includes: a crack detection line surrounding the display area; a screen control line; a plurality of switch signal lines; and a plurality of detection switches electrically connected at different positions to the crack detection line. Each detection switch is also connected to the screen control line and a respective switch signal line, and allows conduction between the crack detection line and the screen control line based on the switch signal input by the switch signal line, such that the screen control line drives the display panel to display according to the test signal input by the crack detection line.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: March 14, 2023
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kang Han, Guangjie Yang, Weixin Meng, Jonguk Kwak, Yang Xie, Kai Peng, Fei Li, Wenfeng Guo
  • Patent number: 11594160
    Abstract: A pixel detection circuit includes a wire, at least one detection signal input terminal, at least one detection signal output terminal, and a first pixel drive circuit comprising a first switch circuit, a second switch circuit, and a third switch circuit. A display apparatus including the pixel detection circuit and a detection method applied to the pixel detection circuit are further provided.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: February 28, 2023
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shicheng Sun, Jonguk Kwak, Dawei Shi, Wei Zhang, Cunzhi Li, Pei Wang
  • Patent number: 11587989
    Abstract: The present disclosure relates to a display device, a display panel, and a manufacturing method thereof. The display panel includes a substrate, a driving layer, and a display layer. The substrate has an opening area, a transition area surrounding the opening area, and a display area surrounding the transition area. The driving layer is disposed on a side of the substrate and covers at least the transition area and the display area, an area of the driving layer being located in the transition area being provided with a separation groove surrounding the opening area, the separation groove including a first groove body and a second groove body sequentially communicated toward the substrate in a direction perpendicular to the substrate, and a distance between bottom ends of side walls of the first groove body being smaller than a distance between top ends of side walls of the second groove body.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: February 21, 2023
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinwei Wu, Shicheng Sun, Zhen Zhang, Wei Zhang, Cunzhi Li, Jonguk Kwak
  • Publication number: 20230045466
    Abstract: A display panel having a hole running through the display panel includes: a base substrate; a plurality of light-emitting devices, organic light-emitting functional layers of the light-emitting devices extending to an edge region; an isolation spacer located on the base substrate within the edge region and which are annular structures that surround the hole, the organic light-emitting functional layers are interrupted at the isolation spacer; and an encapsulation layer covering the plurality of light-emitting devices. An inorganic layer in the encapsulation layer extends to the edge region and covers the isolation spacer and the organic light-emitting functional layers. The isolation spacer includes: an inner layer structure and an outer layer structure. The side of the inner layer structure away from the base substrate is provided with a groove-shaped structure, and the outer layer structure includes a through hole.
    Type: Application
    Filed: March 9, 2021
    Publication date: February 9, 2023
    Inventors: Yanyan XU, Xinwei WU, Wei ZHANG, Cunzhi LI, Dawei SHI, Dongsheng ZHAO, Jonguk KWAK, Shicheng SUN
  • Publication number: 20230006015
    Abstract: A display panel has a display region and a bezel region located on a periphery of the display region, and the display region includes a first region and a second region. The display panel includes a plurality of pixel driving circuits located in the first region and a plurality of pixel driving circuits located in the second region. A density of the pixel driving circuits in the first region is less than a density of the pixel driving circuits in the second region.
    Type: Application
    Filed: April 14, 2021
    Publication date: January 5, 2023
    Applicants: Chongqing BOE Display Technology Co.,Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shicheng SUN, Jonguk KWAK, Dawei SHI, Wei ZHANG, Tianlei SHI, Dongsheng ZHAO, Jie LIU, Pei WANG
  • Patent number: 11538426
    Abstract: A display panel includes a display area and a first peripheral area located around the display area. A first gate driver is provided in the first peripheral area. The display panel is further provided with a plurality of first driving signal lines and a plurality of second driving signal lines. The plurality of first driving signal lines are arranged in a different layer from a layer in which the plurality of second driving signal lines are located. The m-th first driving signal line of the plurality of first driving signal lines and the k-th second driving signal line of the plurality of second driving signal lines are both electrically connected, in the first peripheral area, to an m-th output terminal of the first gate driver, where m is an integer greater than or equal to 1 and k is also an integer greater than or equal to 1.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: December 27, 2022
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinwei Wu, Zhen Zhang, Wei Zhang, Cunzhi Li, Jonguk Kwak, Yanyan Xu
  • Patent number: 11538375
    Abstract: The disclosure relates to a pixel circuit and a testing method of the pixel circuit. The pixel circuit comprises a light emitting element, a storage capacitor Cst, a drive sub-circuit, a reset sub-circuit, a write sub-circuit, a light emission control sub-circuit and a testing element, wherein a control terminal of the testing element is connected to s reset control signal line, a first terminal of the testing element is connected to a reset signal line, a second terminal of the testing element is connected to the drive sub-circuit, and the testing element is configured to test elements included in the pixel circuit.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: December 27, 2022
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Shicheng Sun, Jonguk Kwak, Dawei Shi, Wei Zhang, Cunzhi Li, Pei Wang
  • Publication number: 20220399413
    Abstract: The present disclosure provides a display substrate, including: a base substrate having an opening region, a transition region surrounding the opening region and a pixel region surrounding the opening region; at least one ink-jet printing dam in the transition region and surrounding the opening region; and at least one conductive film layer in the transition region, where an orthographic projection of the conductive film layer on the base substrate is overlapped with an orthographic projection of the ink-jet printing dam on the base substrate. In the technical solution of the present disclosure, the conductive film layer is intended to absorb and conduct heat, so as to reduce the heat on the ink-jet printing dam.
    Type: Application
    Filed: July 14, 2021
    Publication date: December 15, 2022
    Inventors: Xiaoyan YANG, Yuqing YANG, Xiping LI, Huiyang YU, Fengxia TAN, Yong ZHUO, Hui LI, Wei ZHANG, Jonguk KWAK, Shicheng SUN, Xinwei WU, Cunzhi LI, Dongsheng ZHAO
  • Patent number: 11494019
    Abstract: The present disclosure relates to a method for manufacturing a touch display panel. The method includes providing a substrate film layer; forming a display functional film layer on the substrate film layer; forming an encapsulation film layer on a side of the display functional film layer away from the substrate film layer; forming a touch functional film layer on a side of the encapsulation film layer away from the display functional film layer; and after the touch functional film layer is formed, removing all film layers which include at least the substrate film layer and are located at opening areas to form through holes.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: November 8, 2022
    Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Shuanzhu Li, Weixin Meng, Yucheng Chan, Xiangquan Zheng, Kewen Zeng, Jonguk Kwak