Patents by Inventor Chang Luo

Chang Luo 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).

  • Patent number: 11955088
    Abstract: A display substrate includes a base substrate, multiple sub-pixels, multiple first gate drive circuits, and at least one auxiliary structure. The base substrate includes a display region and a peripheral region located at a periphery of the display region. The multiple sub-pixels are located in the display region. The multiple first gate drive circuits and the at least one auxiliary structure are located in the peripheral region. The multiple first gate drive circuits are configured to provide first gate drive signals to the multiple sub-pixels. One auxiliary structure is disposed between adjacent first gate drive circuits.
    Type: Grant
    Filed: December 21, 2022
    Date of Patent: April 9, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Lu Bai, Yang Zhou, Yi Qu, Chang Luo, Huijuan Yang, Yi Zhang, Junxiu Dai
  • Publication number: 20240095360
    Abstract: Disclosed are a RISC-V and O-CFI mechanism-based defense method and apparatus for code reuse attacks, comprising: constructing a control flow graph according to program source codes randomized in a basic block order; on the basis of the control flow graph, obtaining a boundary range of a control flow transfer branch; executing the program source codes, obtaining a target node to which each control flow is to be transferred, and analyzing each target node in combination with the boundary range so as to defend against an abnormal control flow. The present invention can identify an illegal control flow transfer with the assistance of RISC-V security hardware according to the characteristics of a program control flow itself, and effectively handle code reuse attacks, thereby enhancing the security defense capabilities of an RISC-V system.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 21, 2024
    Inventors: Yanjun WU, Chang LIU, Chen ZHAO, Jingzheng WU, Zhiqing RUI, Bin WU, Tianyue LUO
  • Publication number: 20240094855
    Abstract: A touch substrate, a display panel, and an electronic device are provided. The touch substrate includes a base substrate, and first touch electrodes and second touch electrodes on the base substrate; the first touch electrodes are arranged in a first direction, with each first touch electrode extending in a second direction; the second touch electrodes are arranged in the second direction, with each second touch electrode extending in the first direction, the first touch electrode and the second touch electrode are spaced apart and insulated from each other; in a direction perpendicular to the base substrate, the first touch electrodes overlap with the second touch electrodes to form overlapping regions; and in the overlapping region, any first edge extending in the first direction in the conductive grid of the firm touch electrode does not overlap with the first edge in the conductive grid of the second touch electrode.
    Type: Application
    Filed: March 4, 2022
    Publication date: March 21, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Shun Zhang, Yang Zeng, Chang Luo, Yuanqi Zhang, Tianci Chen
  • Patent number: 11930681
    Abstract: A display panel and a display device are provided. The display panel includes a first color sub-pixels and a second color sub-pixel. The first color sub-pixel includes a first effective light emitting region, the second color sub-pixel includes a second effective light emitting region, an area of the second effective light emitting region is smaller than that of the first effective light emitting region. The first color sub-pixel includes a first color light emitting layer, the second color sub-pixel includes a second color light emitting layer, an area ratio between orthographic projections of the first color light emitting layer and the first effective light emitting region on the base substrate is less than an area ratio between orthographic projections of the second color light emitting layer and the second effective light emitting region on the base substrate.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: March 12, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongli Wang, Chang Luo, Lei Chen, Kening Zheng, Chen Xu
  • Patent number: 11922838
    Abstract: A display panel, comprising a first insulating structural layer, a first crack detection line, a second insulating structural layer and a second crack detection line which are sequentially arranged on a substrate, wherein the first crack detection line and the second crack detection line are both located in a peripheral area and are arranged around a display area, one end of the first crack detection line is configured to receive a detection signal, and the other end of the first crack detection line is configured to output a first output signal, and one end of the second crack detection line is configured to receive a detection signal and the other end of the second crack detection line is configured to output a second output signal.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: March 5, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yu Wang, Yi Zhang, Tingliang Liu, Chang Luo, Hao Zhang, Huijuan Yang, Tinghua Shang, Yang Zhou, Pengfei Yu, Shun Zhang, Xiaofeng Jiang, Huijun Li, Linhong Han
  • Publication number: 20240070026
    Abstract: The disclosure proposes a method for remote upgrade and rollback of Unmanned Aerial Vehicle (UAV) software. The UAV includes a storage area and a UAV software upgrade module; and the storage area is divided into a main storage area, a backup storage area and a data area.
    Type: Application
    Filed: November 23, 2021
    Publication date: February 29, 2024
    Inventors: Zhong WANG, Hongxuan GUO, Xukai WANG, Xinghui LI, Chang LI, Jiangfeng DUAN, Chenglin WANG, Yongfu GAO, Haonan WANG, Tengli LUO
  • Publication number: 20240053842
    Abstract: Provided are a display panel, a preparation method thereof, and a display device. The display panel includes a display substrate and a touch panel. The touch panel includes multiple touch electrodes. At least one of the touch electrodes includes multiple grid patterns enclosed by metal wires. At least one of the grid patterns includes a first edge, second edge, third edge and fourth edge that form a ring. The first edge and the third edge extend in a second direction. The second edge and the fourth edge extend in a first direction. A shape of the grid pattern includes a first curved ring, a second curved ring, a third curved ring, or a fourth curved ring. A first edge and third edge of the first curved ring are curves curved towards a direction opposite to the first direction.
    Type: Application
    Filed: April 20, 2021
    Publication date: February 15, 2024
    Inventors: Shun ZHANG, Yi ZHANG, Ping WEN, Peng XU, Chang LUO, Linhong HAN, Weiyun HUANG, Youngyik KO, Yuanqi ZHANG, Cong FAN
  • Publication number: 20240045541
    Abstract: Embodiments of this disclosure disclose a display panel and a display device including the display panel. The display panel includes: a base substrate, the base substrate including a display area and a non-display area around the display area; a touch electrode layer on the base substrate, the touch electrode layer being within the display area of the base substrate; and a plurality of signal lines electrically connected with the touch electrode layer, the plurality of signal lines being distributed within a first area of the non-display area. The display panel further includes at least one outer dummy trace within a second area of the non-display area, the second area is between the first area and an outer border of the non-display area, and the at least one outer dummy trace and the plurality of signal lines are separated from each other.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Inventors: Yuanqi ZHANG, Ping WEN, Shun ZHANG, Yang ZENG, Wei WANG, Yu WANG, Chang LUO, Yi ZHANG
  • Patent number: 11893178
    Abstract: Embodiments of this disclosure disclose a display panel and a display device including the display panel. The display panel includes a base substrate, the base substrate including a display area and a non-display area around the display area, a touch electrode layer on the base substrate, the touch electrode layer being within the display area of the base substrate, and a plurality of signal lines electrically connected with the touch electrode layer, the plurality of signal lines being distributed within a first area of the non-display area adjacent to the display area. The display panel further includes a plurality of outer dummy traces within a second area of the non-display area, the second area is between the first area and an outer border of the non-display area, and the plurality of outer dummy traces and the plurality of signal lines are separated from each other.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: February 6, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yuanqi Zhang, Ping Wen, Shun Zhang, Yang Zeng, Wei Wang, Yu Wang, Chang Luo, Yi Zhang
  • Patent number: 11885005
    Abstract: A mask, a manufacturing method therefor, and a manufacturing method for a display substrate are provided. The mask includes: a first clamping region and a second clamping region, which are opposite to each other in a first direction, and at least one mesh region between the first clamping region and the second clamping region, the mesh region is in a first shape, in a case where the mask is stretched in the first direction, the mesh region is in a target shape, the target shape is different from the first shape, and the target shape includes a polygon shape, a circle shape, or an ellipse shape.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: January 30, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chang Luo, Fengli Ji, Jianpeng Wu, Zhongying Yang
  • Publication number: 20240032376
    Abstract: A pixel array includes a plurality of sub-pixels, which include first to third sub-pixels. The first and third sub-pixels are alternately arranged along a row direction and form first pixel rows. The first and third sub-pixels, which are in a same column, in the first pixel rows are alternately arranged, and the second sub-pixels are arranged side by side along the row direction and form second pixel rows. Lines sequentially connecting centers of two of the first sub-pixels and two of the third sub-pixels, which are arranged in an array, together form a first virtual quadrilateral, and one of the second sub-pixels is in each first virtual quadrilateral. A straight line in the row direction or in a column direction, which passes through a center of each sub-pixel of at least one of the plurality of sub-pixels, divides the sub-pixel into two parts having areas different from each other.
    Type: Application
    Filed: September 29, 2023
    Publication date: January 25, 2024
    Inventors: Ming HU, Yan HUANG, Chang LUO, Jianpeng WU, Benlian WANG, Peng XU, Wei ZHANG, Qian XU
  • Publication number: 20240023407
    Abstract: An electronic substrate and an electronic device are provided. The electronic substrate includes a base substrate, and a first signal line and a second signal line on the base substrate; the electronic substrate includes a first functional region and a peripheral region, and the first signal line and the second signal line are in the peripheral region; at least one of the first signal line and the second signal line is configured to transmit an electrical signal for the first functional region; in a direction perpendicular to the base substrate, the first signal line partially overlaps with the second signal line in an overlapping region; and the first signal line includes a first wiring portion in the overlapping region and a second wiring portion outside the overlapping region, and a line width of the first wiring portion is different from a line width of the second wiring portion.
    Type: Application
    Filed: November 24, 2021
    Publication date: January 18, 2024
    Inventors: Wei WANG, Yi ZHANG, Peng XU, Chang LUO
  • Publication number: 20240012525
    Abstract: A touch control substrate, a display panel, and an electronic device.
    Type: Application
    Filed: March 4, 2022
    Publication date: January 11, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Shun Zhang, Yu Wang, Fuqiang Yang, Chang Luo, Yi Zhang, Yang Zeng, Tianci Chen
  • Publication number: 20240008335
    Abstract: Display substrate, display device, high-precision metal mask are provided. Display substrate includes: first, second, and third sub-pixels; in first direction, first and third sub-pixels are alternately arranged to form first sub-pixel rows, second sub-pixels form second sub-pixel rows; in second direction, first and second sub-pixel rows are alternately arranged; two first and two third sub-pixels in two adjacent rows and two adjacent columns form 2*2 array; in the array, two first sub-pixels are in different rows and in different columns, so are the two third sub-pixels, connection lines of centers of two first and two third sub-pixels form virtual quadrilateral, second sub-pixel is within virtual quadrilateral; for multiple distances from centers of two first and two third sub-pixels corresponding to same virtual quadrilateral to center of second sub-pixel, at least two distances are different. Brightness centers of virtual pixels have more uniform distribution.
    Type: Application
    Filed: September 18, 2023
    Publication date: January 4, 2024
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tong NIU, Ming HU, Chang LUO, Jianpeng WU, Benlian WANG, Fengli JI, Peng XU, Qian XU, Guomeng ZHANG, Yan HUANG
  • Patent number: 11864447
    Abstract: Display substrate, display device, high-precision metal mask are provided. Display substrate includes: first, second, and third sub-pixels; in first direction, first and third sub-pixels are alternately arranged to form first sub-pixel rows, second sub-pixels form second sub-pixel rows; in second direction, first and second sub-pixel rows are alternately arranged; two first and two third sub-pixels in two adjacent rows and two adjacent columns form 2*2 array; in the array, two first sub-pixels are in different rows and in different columns, so are the two third sub-pixels, connection lines of centers of two first and two third sub-pixels form virtual quadrilateral, second sub-pixel is within virtual quadrilateral; for multiple distances from centers of two first and two third sub-pixels corresponding to same virtual quadrilateral to center of second sub-pixel, at least two distances are different. Brightness centers of virtual pixels have more uniform distribution.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 2, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tong Niu, Ming Hu, Chang Luo, Jianpeng Wu, Benlian Wang, Fengli Ji, Peng Xu, Qian Xu, Guomeng Zhang, Yan Huang
  • Patent number: 11864426
    Abstract: An array substrate, a manufacturing method thereof, and a display device are provided. The array substrate includes: a base substrate; a light-emitting functional layer including a first light-emitting functional portion and a second light-emitting functional portion adjacent to each other; and a photo spacer (PS), the PS is located between the first light-emitting functional portion and the second light-emitting functional portion, the PS includes a plurality of protrusions protruded in a direction away from the base substrate and a first recess located between adjacent protrusions.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: January 2, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chang Luo, Fengli Ji, Jianpeng Wu
  • Publication number: 20230409154
    Abstract: A touch panel includes: a first touch electrode including a first corner protrusion and first side protrusions including an adjacent-type first side protrusion, and a second touch electrode including a second corner protrusion and second side protrusions including an adjacent-type second side protrusion. The first side protrusion includes a second side sub-protrusion. The first corner protrusion includes a second corner sub-protrusion. The second side protrusion includes a fourth side sub-protrusion. The second corner protrusion includes a fourth corner sub-protrusion. The area of at least one of the second corner sub-protrusion and the second side sub-protrusion of the adjacent-type first side protrusion is smaller than that of the other second side sub-protrusion; and/or the area of at least one of the fourth corner sub-protrusion and the fourth side sub-protrusion of the adjacent-type second side protrusion is smaller than that of the other fourth side sub-protrusion.
    Type: Application
    Filed: May 31, 2021
    Publication date: December 21, 2023
    Inventors: Yuanqi ZHANG, Yang ZENG, Chang LUO, Yi ZHANG
  • Patent number: 11842019
    Abstract: A touch substrate and a display panel are provided. The touch substrate includes first touch electrodes and second touch electrodes; the first touch electrodes are arranged along a first direction and extend along a second direction, and the second touch electrodes are arranged along the second direction and extend along the first direction; each first touch electrode includes a first touch sub-electrode and a first connection electrode, the first connection electrode is between two adjacent first touch sub-electrodes, the two adjacent first touch sub-electrodes are electrically connected through the first connection electrode; the first touch sub-electrode and the first connection electrode are in different conductive layers; the first touch sub-electrode is at least partially in the first functional region of the touch substrate and outside the opening peripheral region, the first connection electrode includes a first connection sub-electrode that is at least partially in the opening peripheral region.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: December 12, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yu Wang, Yi Zhang, Shun Zhang, Ping Wen, Yuanqi Zhang, Wei Wang, Fuqiang Yang, Yang Zeng, Chang Luo, Chao Zeng
  • Publication number: 20230367436
    Abstract: A touch control structure is provided. The touch control structure includes a corner row including a plurality of row mesh blocks electrically connected along a row direction; and a plurality of residual portions in a corner region, and electrically connected to the plurality of row mesh blocks. The touch control structure includes a corner column including a plurality of column mesh blocks electrically connected along a column direction; and a corner column mesh block at least partially in the corner region. The corner column mesh block includes a main portion and a plurality of protrusion portions along an edge of the main portion. The plurality of residual portions and the plurality of protrusion portions are alternately arranged along a direction substantially parallel to the edge of the main portion. The touch control structure further includes a residual connecting conductive plate electrically connecting the plurality of residual portions together.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 16, 2023
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Shun Zhang, Ping Wen, Yuanqi Zhang, Yi Zhang, Tingliang Liu, Chang Luo, Wei Wang, Yu Wang, Yang Zeng
  • Publication number: 20230367437
    Abstract: A touch control structure is provided. The touch control structure includes a plurality of first mesh electrodes along a row direction and a plurality of second mesh electrodes along a column direction. The touch control structure is limited in a touch control region and absent in a window region surrounded by the touch control region. The plurality of second mesh electrodes includes a first mesh block and a second mesh block; and a first conductive bridge connecting the first mesh block and the second mesh block. A second segment of the first conductive bridge is in a layer different from a first segment of the first conductive bridge.
    Type: Application
    Filed: July 27, 2023
    Publication date: November 16, 2023
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ping Wen, Wei Wang, Shun Zhang, Yuanqi Zhang, Chang Luo, Yang Zeng, Yu Wang, Yi Zhang