Patents Assigned to Chengdu BOE Optoelectronics Technologies Co., Ltd.
  • Publication number: 20240153417
    Abstract: An array substrate includes N number of testing signal lines, N being an integer greater than 1; N number of first control signal lines; N number of second control signal lines; M number of first switching transistors; and M number of second switching transistors. A second electrode of a m-th first switching transistor is connected to a first electrode of a m-th second switching transistor, 1?m?M. A n-th testing signal line is connected to first electrodes of (kN+n)-th first switching transistors, 1?n?N, 0?k<M/N. A n-th first control signal line is connected to gate electrodes of (kN2+((n?1)*N)+1)-th to (kN2+n*N)-th first switching transistors, 0?k<M/N. A n-th second control signal line is connected to gate electrodes of the (kN+n)-th second switching transistors. A second electrode of the m-th second switching transistor is connected to a m-th array substrate signal line.
    Type: Application
    Filed: July 20, 2021
    Publication date: May 9, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hongting Lu, Yuhsiung Feng
  • Publication number: 20240153428
    Abstract: A pixel circuit and a driving method therefor, a display substrate, and a display apparatus. The pixel circuit includes a driving sub circuit, a data writing sub circuit, a first light-emitting control sub circuit, a first reset sub circuit, and a bias sub circuit; the first reset sub circuit is connected to a first node and configured to write a first reset voltage to the first node in response to a first reset control signal; and the bias sub circuit is connected to a second node and configured to write a reference voltage to the second node in response to a bias control signal, thereby turning on the driving sub circuit.
    Type: Application
    Filed: July 8, 2022
    Publication date: May 9, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xinyu Wei, Kai Zhang, Qiang Fu, Gang Wang, Erlong Song, Hongmei Fan, Kunyan Shi
  • Publication number: 20240155872
    Abstract: A display substrate and a preparation method therefor, and a display device. The display substrate includes a display area, a blocking area, an opening area, and a base substrate. The blocking area includes at least one blocking wall at least partially surrounding the opening area. Each blocking wall includes a first metal layer structure and a first stack structure, and at least one side surface of the first metal layer structure surrounding the opening area (301) includes a first notch. The display area includes a plurality of sub-pixels, each sub-pixel includes a pixel driving circuit and a light-emitting device, the pixel driving circuit includes a thin-film transistor and a connector electrode, and the thin-film transistor includes a first source/drain electrode and a second source/drain electrode. The light-emitting device includes a first electrode a second electrode, and a light-emitting material layer between the first electrode and the second electrode.
    Type: Application
    Filed: September 22, 2022
    Publication date: May 9, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yu Wang, Cong Fan, Xiangdan Dong, Donghui Tian
  • Publication number: 20240153419
    Abstract: A flexible display panel and a preparation method therefor, and a display device and a display module are provided. The flexible display panel includes a planar area, a first bending area, a second bending area and a corner bending area. The corner bending area is connected to a corner of the planar area and is connected between the first bending area and the second bending area, and is provided with a plurality of first hole groups, where the corner bending area is bent with a width of a first hole group in middle of the corner bending area increasing and a width of a first hole group in an edge area on a side of the corner bending area away from the planar area decreasing.
    Type: Application
    Filed: January 17, 2024
    Publication date: May 9, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yaming WANG, Liqiang CHEN, Dongdong ZHAO, Zuojia WANG, Xueyan LIU, Xu LI
  • Patent number: 11980071
    Abstract: A display substrate and a display device. The display substrate includes a display region, a first connecting wire, and a second connecting wire. A first display region includes a first sub-pixel array, including a plurality of light emitting elements arranged in an array, and the plurality of light emitting elements include a first light emitting element and a second light emitting element. The second display region includes a first pixel circuit array, including a plurality of first pixel circuit units, and the plurality of pixel circuit units include a first pixel circuit (D10) and a second pixel circuit. The first connecting wire (151) is connected to the first pixel circuit and the first light emitting element. The second connecting wire is connected to the second pixel circuit and the second light emitting element. The second connecting wire extends in a first direction, the first connecting wire extends in a second direction.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: May 7, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuanyou Qiu, Weiyun Huang, Yao Huang, Yue Long, Tianyi Cheng
  • Patent number: 11980074
    Abstract: A display substrate and a manufacturing method thereof, and a display device are disclosed. The display substrate includes a base substrate, a plurality of sub-pixels, at least one group of contact pads, and a first insulation layer. The base substrate includes a display region and a bonding region located at one side of the display region. At least one group of contact pads includes a plurality of contact pads, at least one of the plurality of contact pads includes a first contact pad metal layer and a second contact pad metal layer, the second contact pad metal layer covers an edge of the first contact pad metal layer. The first insulation layer is located in gaps between the plurality of contact pads and covers edges of the plurality of contact pads, and is configured to expose surfaces of the plurality of contact pads facing away from the base substrate.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: May 7, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mengmeng Du, Xiangdan Dong, Hongwei Ma, Jun Yan, Bo Cheng, Biao Liu
  • Patent number: 11980070
    Abstract: A display panel has a display region and at least one bonding region located beside the display region. The display panel includes: a base; and a plurality of conductive pads provided on the base and located in each bonding region. The plurality of conductive pads are arranged at intervals along a first direction. The plurality of conductive pads include at least one first type of conductive pad configured to transmit a direct current voltage signal to the display region and a plurality of second type of conductive pads configured to transmit a pulse voltage signal to the display region. A dimension of one first type of conductive pad in the first direction is greater than a dimension of one second type of conductive pad in the first direction.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: May 7, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Bing Zhang, Shanghong Li, Mengyue Fan
  • Patent number: 11977422
    Abstract: Provided are a display panel, a display device, and an electronic device. The display panel comprises a panel main body. The panel main body comprises a first portion, a second portion and a bendable third portion, and the third portion is located between the first portion and the second portion. A reinforcement layer is provided on a first face of the first portion to make a stiffness of the first portion higher than a stiffness of the third portion.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: May 7, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jiaxiang Wang, Binfeng Feng, Yangyang Cai, Yanli Wang, Xinqi Lin, Chao Zhang, Wei Gong
  • Patent number: 11980000
    Abstract: A back film for a display device and the display device are provided in the present disclosure. The back film includes an opening region and a non-opening region, and the back film includes a first flexible material layer and a polyimide layer laminated one on another. An opening penetrating through the first flexible material layer and the second flexible material layer is formed in the back film, and a region corresponding to the opening is the opening region. The back film further includes a protection member covering the camera region.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: May 7, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yao Huang, Yuanyou Qiu, Yudiao Cheng
  • Patent number: 11977695
    Abstract: A touch module and a touch display device are provided. The touch module includes: a substrate, including a touch region and a non-touch region around the touch region, the non-touch region including a wiring region, a non-bonding region and a bonding region; a touch structure, located in the touch region; at least one pad, located in the non-touch region, the at least one pad including a pad bonding portion in the bonding region and a pad non-bonding portion in the non-bonding portion; at least one wiring, located in the wiring region and electrically connected to the touch structure; and at least one first dummy pattern; wherein the at least one wiring is further electrically connected to the at least one pad, the at least one first dummy pattern is located in the non-bonding region and adjacent to the at least one pad.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: May 7, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zewen Li, Xiaofeng Luo, Kwanggyun Jang, Hongqiang Luo, Guiyu Zhang
  • Patent number: 11978380
    Abstract: The display substrate includes a plurality of pixel driving circuits correspondingly coupled to second light-emitting devices, respectively. The pixel driving circuit includes a first drive control circuit in the bezel area, and a second drive control circuit in the second display area. The first drive control circuit is coupled to the second drive control circuit through first wire, and the second drive control circuit is coupled to a corresponding second light-emitting device. Each first drive control circuit is configured to generate a drive current for driving the corresponding second light-emitting device. Each second drive control circuit is configured to make the path between the first drive control circuit and the corresponding second light-emitting device conducting after the path being non-conducting for a period of time, when the drive current moves between the second drive control circuit and the first wire.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: May 7, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yuanyou Qiu, Yao Huang
  • Publication number: 20240143105
    Abstract: A touch sensor and a display apparatus are disclosed. The touch sensor includes a first opening region, first touch electrodes and second touch electrodes. The first touch electrodes respectively extend along a first direction, and at least one of the first touch electrodes includes first touch sub-electrodes arranged side by side in the first direction and electrically connected with each other; the second touch electrodes respectively extend along a second direction, and at least one of the second touch electrodes includes second touch sub-electrodes arranged side by side in the second direction and electrically connected with each other; an area of a first touch sub-electrode in the first region is less than that of a first touch sub-electrode in the third region, or an area of a second touch sub-electrode in the first region is less than that of a second touch sub-electrode in the third region.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenxiao NIU, Hengzhen LIANG, Qing GONG, Shiheng MU
  • Publication number: 20240147792
    Abstract: An array substrate is provided. The array substrate includes a node connecting line in a same layer as a respective one of the plurality of voltage supply lines, connected to a first capacitor electrode through a first via, and connected to a semiconductor material layer through a second via; and an interference preventing block in a same layer as the second capacitor electrode. Along the first direction, a portion of the node connecting line at a position connecting to the semiconductor material layer through the second via is spaced apart from a first adjacent data line by a first arm, and is spaced apart from a second adjacent data line by a second arm. An orthographic projection of a respective one of the plurality of voltage supply lines on the base substrate substantially covers at least 30% of an orthographic projection of the second arm on the base substrate.
    Type: Application
    Filed: January 9, 2024
    Publication date: May 2, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Maoying Liao, Yang Zhou, Xin Zhang, Huijuan Yang
  • Publication number: 20240144873
    Abstract: A pixel circuit and a driving method thereof, a display substrate and a display device are provided. The pixel circuit includes a driving sub-circuit, a first switch sub-circuit and a first light-emitting control sub-circuit. The driving sub-circuit includes a control terminal connected with a first node, a first terminal connected with a second node and a second terminal connected with a third node, and is configured to control a driving signal from the first node to the third node for driving a light-emitting element; the first switch sub-circuit is configured to control conduction of the driving signal between the third node and a fourth node; the first light-emitting control sub-circuit is connected with a first electrode of the light-emitting element through a fifth node, and is configured to control conduction of the driving signal between the fourth node and the fifth node.
    Type: Application
    Filed: May 20, 2021
    Publication date: May 2, 2024
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yao HUANG, Binyan WANG, Meng LI
  • Patent number: 11972732
    Abstract: A shift register unit, configured to generate a first gate drive signal and a second gate drive signal, which includes a first control circuit, configured to control a potential of a first node; a second control circuit, configured to control a potential of a second node; a first output circuit, configured to generate the first gate drive signal based on a first voltage signal provided by a first voltage terminal under the control of the potentials of the first and second nodes, and output the first gate drive signal through a first gate drive signal output terminal, wherein the first voltage signal provided by the first voltage terminal is a high level signal; and a second output circuit, configured to generate a second gate drive signal based on a second voltage signal provided by a second voltage terminal under the control of a potential of a control node, and output the second gate drive signal through a second gate drive signal output terminal.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: April 30, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Heecheol Kim, Teng Chen, Shuo Li
  • Patent number: 11974465
    Abstract: A display substrate and a display device are provided. The display substrate includes sub-pixels and a light emitting control signal line. The sub-pixel includes an organic light emitting element and a pixel circuit, the organic light emitting element includes a second electrode, the pixel circuit includes a driving transistor and a first light emitting control transistor, and the pixel circuit further includes a connection structure. In the second color sub-pixel, a first electrode of the first light emitting control transistor is electrically connected with the connection structure through a first connection hole, and the connection structure is electrically connected with the second electrode through a second connection hole, the first connection hole and the second connection hole are located on both sides of the light emitting control signal line. In the third color sub-pixel, the second electrode does not overlap with a channel of the driving transistor.
    Type: Grant
    Filed: April 3, 2023
    Date of Patent: April 30, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY. GROUP CO., LTD.
    Inventors: Xin Mou, Yongfu Diao
  • Patent number: 11974466
    Abstract: A first planarization layer, an anode lap joint later, a pixel defining layer are between the first dam and the display area; the anode lap joint layer includes a main body portion and sharp angle portions; the sharp angle portion at least includes a first side edge close to the display area; the pixel defining layer wraps a border of the anode lap joint layer and has a first groove extending from one to the other sharp angle portion. An edge of the first groove adjacent to the first side edge of the sharp angle portion is a second side edge; and an orthographic projection of the second side edge on a base substrate is in an orthographic projection of the third groove on the base substrate.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: April 30, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Lu Bai, Li Song, Chang Luo, Sen Du, Pengfei Yu, Jie Dai, Yang Zhou
  • Patent number: 11974482
    Abstract: A display substrate and related devices are provided. The display substrate includes a plurality of first sub-pixels, second sub-pixels and third sub-pixels. In a first direction, the first sub-pixels and the third sub-pixels are arranged alternately to form a plurality of first sub-pixel rows, the second sub-pixels form a plurality of second sub-pixel rows, the first sub-pixel rows and the second sub-pixel rows are arranged alternately in a second direction, connection lines of center points of two first sub-pixels and two third sub-pixels form a first virtual quadrilateral, the two first sub-pixels are located at two vertex angles of the first virtual quadrilateral which are opposite to each other, one second sub-pixel is located within the first virtual quadrilateral, and the first virtual quadrilateral includes two interior angles each being equal to 90° and two interior angles each being not equal to 90°.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 30, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Xu, Tong Niu, Yan Huang, Guomeng Zhang, Chang Luo, Jianpeng Wu, Peng Xu, Fengli Ji, Yi Zhang, Benlian Wang, Ming Hu
  • Patent number: 11972725
    Abstract: A method for image display in a display apparatus is provided. The method includes displaying an image in a respective subpixel in an image display phase. In a sensing phase subsequent to the image display phase, the method further includes providing an initial voltage signal to an anode of a respective light emitting element in the respective subpixel for a first period of time; allowing the anode of a respective light emitting element to discharge for a second period of time, upon discontinuation of the initial voltage signal; obtaining a residual voltage signal at the anode of the respective light emitting element at an end of the second period of time by a sensing sub-circuit of a respective pixel driving circuit; and transmitting the residual voltage signal to an integrated circuit.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: April 30, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Hongjun Zhou, Feng Wei, Cong Liu
  • Patent number: 11974451
    Abstract: A display substrate, a method for manufacturing the same and a display device. In the display substrate, a sealant region includes: a corner sealant region, a lead-in sealant region, and a first sealant region on a first side of a display area. The corner sealant region is provided with an encapsulation base layer. A non-display area is provided with a second power line, a gate drive circuit and multiple first signal lines configured to provide signals to the gate drive circuit. The second power line includes a power line corner portion and a first power line portion, the first power line portion overlaps the first sealant region, and the first power line portion extends in a first direction. A target portion of each first signal line is at least located in the corner sealant region.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: April 30, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lili Du, Hongjun Zhou