Patents Assigned to CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
  • Publication number: 20220246101
    Abstract: A shift register unit, a scanning driving circuit, a display substrate and a display device. The shift register unit includes an output terminal, an output circuit and an output node control circuit. The output circuit is electrically coupled to a first output node, a second output node, a first voltage line, a second voltage line and the output terminal, respectively. The output node control circuit is electrically coupled to the first output node, the second output node, a third voltage line, a fourth voltage line, a fifth voltage line, a first clock signal line, a second clock signal line and an input terminal, respectively. At least one of a third voltage signal, a fourth voltage signal and a fifth voltage signal is different from a first voltage signal and ae second voltage signal.
    Type: Application
    Filed: December 13, 2021
    Publication date: August 4, 2022
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yue LONG, Benlian WANG, Yingsong XU, Lili DU, Yao HUANG, Yuanjie XU, Tingliang LIU
  • Publication number: 20220246100
    Abstract: A shift register unit, a scanning drive circuit, a display substrate, and a display device are provided. The shift register unit includes an output end, a node control end, a first output node control circuit, a second output node control circuit and an output circuit, the second node control circuit is electrically connected to a first clock signal line, the node control end, the first output node and the second node; the first output node control circuit is electrically connected to the second node and the first output node and is configured to control a potential of the first output node; the second output node control circuit is electrically connected to the second node and the second output node; the output circuit is electrically connected to a first output node, a second output node, a first voltage line, a second voltage line and an output end.
    Type: Application
    Filed: November 24, 2021
    Publication date: August 4, 2022
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yue LONG, Benlian WANG, Yuanjie XU, Yingsong XU, Lili DU, Tingliang LIU, Yao HUANG
  • Patent number: 11404665
    Abstract: An encapsulation method of a display panel, a display panel and a display device are disclosed. The encapsulation method of the display panel includes: forming at least one thin film encapsulation inorganic material layer on a thin film encapsulation region of a display substrate; forming a photoresist pattern on the at least one thin film encapsulation inorganic material layer; and etching the at least one thin film encapsulation inorganic material layer by using the photoresist pattern as a mask to form a thin film encapsulation inorganic layer including a first opening pattern.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: August 2, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Quanqin Sun, Song Zhang, Ang Xiao, Duanming Li
  • Patent number: 11403978
    Abstract: A chip programming voltage detection circuit and a chip programming voltage detection method are disclosed. The chip programming voltage detection circuit comprises a detection subcircuit and a warning subcircuit. The detection subcircuit detects a voltage at a programming voltage output pin, and outputs a detection signal based on the voltage at the programming voltage output pin. The warning subcircuit is connected to a detection output terminal of the detection subcircuit, and is operated to issue a warning alarm in a case where the detection signal indicates that the voltage at the programming voltage output pin does not reach a voltage required for an IC chip programming.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: August 2, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Liu, Jianjun Li, Tianma Li, Bin Ji
  • Patent number: 11404001
    Abstract: The present disclosure relates to the field of display technologies, and in particular, to a pixel driving circuit, a pixel driving method, and a display panel. The pixel driving circuit includes a first switch circuit, a compensation circuit, a power control circuit, a second switch circuit, a driving circuit, an isolation circuit, and an energy storage circuit.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 2, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Taoran Zhang, Zailong Mo
  • Patent number: 11404530
    Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate; a plurality of first data line leads; a plurality of multiplex switches and at least two control lines electrically coupled to the plurality of multiplex switches; a plurality of second data line leads; a plurality of first pads and a plurality of second pads; and at least two connecting lines coupled to the at least two control lines and at least two of the plurality of second pads; wherein a length of any of the at least two connecting lines is longer than a vertical distance from any of the at least two second pads to a control line coupled to any of the at least two connecting lines.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: August 2, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Linhong Han, Meng Zhang, Tingliang Liu, Yi Qu
  • Patent number: 11404007
    Abstract: A display substrate and a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, including a pixel array region and a peripheral region; and a first scan driving circuit, a plurality of power lines, a first signal line group, and a second signal line group. The first scan driving circuit includes a plurality of cascaded first shift registers; the plurality of power lines are configured to provide a plurality of power voltages to the plurality of cascaded first shift registers in the first scan driving circuit; the first signal line group includes at least one timing signal line; the second signal line group includes a first trigger signal line configured to provide a first trigger signal to a first-stage first shift register; and the first trigger signal line is between the plurality of power lines and the pixel array region.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: August 2, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chao Zeng, Weiyun Huang, Yue Long, Yao Huang, Meng Li
  • Patent number: 11404009
    Abstract: Provided are an array substrate and a display device. The array substrate includes: a base substrate including a display area and a peripheral area including a first peripheral area and a corner area; a plurality of sub-pixels, data lines, gate lines and light emitting control lines; a plurality of groups of connecting lines located at the corner area, each group of which including a plurality of connecting lines including a gate connecting line electrically connected to a gate line and a light emitting control connecting line electrically connected to a light emitting control line; a gate driving circuit; a light emitting control driving circuit; a plurality of data signal input lines; and a multiplexing circuit. The orthographic projection of each connecting line on the base substrate passes between that of two adjacent multiplexing units and does not overlap with that of the multiplexing units.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: August 2, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Pengfei Yu
  • Publication number: 20220238625
    Abstract: A displaying base plate includes a displaying region and a non-displaying region; the non-displaying region includes a substrate, and a first wiring unit, a first planarization part, at least one blocking wall, a second planarization part and a packaging layer located on the substrate; the first wiring unit is provided with a slot; the first planarization part and the blocking wall are provided on one side of the first wiring unit further away from the substrate; the first planarization part is closer to the displaying region than the blocking wall; orthographic projections of the first planarization part on the substrate and the blocking wall on the substrate do not intersect or overlap; the second planarization part is configured to at least fill and level up the slot in the first wiring unit that is located at the region between the first planarization part and the blocking wall.
    Type: Application
    Filed: September 17, 2021
    Publication date: July 28, 2022
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lin Zhang, Demao Yuan, Yunhao Zhang, Xiaodong Yang, Junjiao Chen, Chengguo An
  • Patent number: 11398505
    Abstract: Embodiments of the present disclosure provide a display substrate, a display panel, a display device, and a manufacturing method of the display substrate. The display substrate includes a display region and a peripheral region located at an outer side of the display region, and the peripheral region includes a bonding region. The display substrate includes: a base substrate, and a first metal pattern and a second metal pattern which are provided on the base substrate and located in the bonding region, the second metal pattern covers at least a portion of at least one side surface of the first metal pattern, and an activity of a metal of the second metal pattern is weaker than an activity of a metal of the first metal pattern.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: July 26, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zheng Bao, Hongwei Hu, Yanxia Xin, Xueping Li, Yihao Wu, Gong Chen, Peng Xu
  • Patent number: 11398190
    Abstract: A display driving method, a display driving device and a display module are provided. The display driving method includes: during each delay cycle, controlling a first light-emission control signal to be delayed by a predetermined duration from a second light-emission control signal, the predetermined duration corresponding to the delay cycle. The first light-emission control signal is a light-emission control signal outputted by each light-emission control line during an (n+1)-th frame of display time period in the delay cycle, and the second light-emission control signal is a light-emission control signal outputted by the corresponding light-emission control line during an n-th frame of display time period in the delay cycle. Each delay cycle includes N frames of display time periods, N is a positive integer greater than a first predetermined number, and n is a positive integer less than N.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: July 26, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lixia Shen, Yong Yu, Zhiguang Zhang, Taehyun Kim, Chang Zhang
  • Patent number: 11398435
    Abstract: The present disclosure provides a substrate, an alignment method and an alignment device. The substrate includes an alignment mark and an auxiliary alignment mark. A shape of the auxiliary alignment mark is different from a shape of the substrate alignment mark.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: July 26, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Runmin Tang, Jun Wang, Zhantao Wang, Junlong Wang, Xing Ren
  • Publication number: 20220230593
    Abstract: A shift register includes: a first input sub-circuit configured to transmit a first clock signal to a first node in response to an input signal and a first voltage signal; a first output sub-circuit configured to transmit a second voltage signal to a first output signal terminal under control of a voltage of the first node; a second input sub-circuit configured to transmit the input signal to a second node in response to the first clock signal; and, a second output sub-circuit configured to transmit the first voltage signal to the first output signal terminal under control of a voltage of the second node. A voltage value of one of the first voltage signal and the second voltage signal is greater than that of a reference voltage, and a voltage value of another one is less than that of the reference voltage.
    Type: Application
    Filed: December 31, 2020
    Publication date: July 21, 2022
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yao HUANG, Kaipeng SUN, Yuanyou QIU, Yang ZHOU
  • Patent number: 11393999
    Abstract: The present disclosure discloses a display substrate and a manufacturing method thereof, a display panel, and a display apparatus. The display substrate comprises: a base substrate, and display units on the base substrate; each of the display units comprises: an anode, a hole transporting layer, an electroluminescent layer, an electron transporting layer and a cathode, all of which are superposed in sequence; a plurality of nano-grooves are disposed on a surface of at least one of the hole transporting layer and the electron transporting layer, the surface is in contact with the electroluminescent layer; and a distance between any two adjacent nano-grooves is on a nanometric order of magnitude. The present disclosure is useful in improving the capability of the display units in resisting bending and preventing the display units from being ruptured due to a bending process.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 19, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ni Jiang, Xiaohui Wu
  • Patent number: 11393373
    Abstract: A gate drive circuit includes: a plurality of cascaded shift register units, wherein each of the shift register units is connected to pixel circuits in a display panel; an output module of each shift register unit includes: a drive transistor for driving an output terminal to output a gate drive signal, and the output terminal is configured to provide the gate drive signal to the pixel circuits connected to the shift register unit provided with the output terminal; each pixel circuit is further connected to a first power supply terminal, and each pixel circuit is configured to emit light under control of the gate drive signal from the corresponding shift register unit and a first power supply signal from the first power supply terminal; and a width-to-length ratio of a conductive channel of each drive transistor is in negative correlation with a target distance.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: July 19, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., LTD., BOE Technology Group Co., LTD.
    Inventors: Yao Huang, Weiyun Huang, Chao Zeng
  • Patent number: 11394010
    Abstract: A display substrate, a method for manufacturing the same and a display device are provided. The display substrate includes a base, a pixel definition layer disposed on the base, and a light-emitting unit disposed in a pixel opening region defined by the pixel definition layer; the display substrate further includes: a diversion channel provided on a surface of the pixel definition layer that is away from the base; and an encapsulation layer covering the light-emitting unit and the pixel definition layer, wherein the encapsulation layer fills the diversion channel. The display substrate in the present disclosure is used for displaying an image.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: July 19, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guanyu Lu, Dawei Wang, Haiping Zhao, Ruiqi Xiu
  • Patent number: 11393895
    Abstract: The present disclosure relates to an organic light-emitting backplane and manufacturing method thereof, a touch display screen and a touch display device. The organic light-emitting backplane comprises a display region and a non-display region located around the display region, the organic light-emitting backplane in the non-display region comprising: a first substrate; a padding layer located on a side of the first substrate, the padding layer comprising a body portion and a convex pattern portion located on a side of the body portion away from the first substrate; and a first wiring layer located on a side of the padding layer away from the first substrate, at least apart of the first wiring layer being formed on a surface of the convex pattern portion.
    Type: Grant
    Filed: June 28, 2020
    Date of Patent: July 19, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Fei Yu, Hongjun Zhou, Wen Tan
  • Patent number: 11394009
    Abstract: Provided is a display substrate having a polygonal encapsulation region with a plurality of edges and a periphery region surrounding the encapsulation region. The display substrate includes a base substrate, and a partition structure within the periphery region on a side of the base substrate. The partition structure includes a plurality of isolation dams, arranged at intervals along a direction away from the encapsulation region, outside each edge of the encapsulation region. The plurality of edges include a first edge and a second edge, and a plurality of first isolation dams outside the first edge are not in connection with, and have more dams than, a plurality of second isolation dams outside the second edge.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 19, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunsheng Xiao, Haigang Qing, Xiangdan Dong, Tingliang Liu
  • Patent number: 11391983
    Abstract: The present disclosure provides a color film substrate, a manufacturing method thereof, a display panel and a display device, and relates to the field of display technology. The color film substrate includes a base substrate, the base substrate being provided with an opening region, a black matrix, the black matrix being disposed on a surface of the base substrate, the black matrix including at least one annular opening surrounding the opening region, and the at least one annular opening spacing the black matrix apart from the opening region.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: July 19, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ting Li, Yuanjie Xu, Pengcheng Zang, Yadong Zhang, Yao Li
  • Patent number: 11387314
    Abstract: A display substrate includes a scan driving circuit and a display area arranged on a substrate, the scan driving circuit includes shift register units; the scan driving circuit includes a first/second voltage signal line and a first/second clock signal line extending along a first direction; the display area includes at least one driving transistor configured to drive a light emitting element for display; at least one shift register unit includes a signal output line, a first capacitor, and at least two transistors coupled to a same electrode plate of the first capacitor; the signal output line extends along a second direction intersecting the first direction; gate electrodes of the at least two transistors are respectively coupled to the same electrode plate of the first capacitor, and the first capacitor and the at least two transistors are arranged on a same side of the first voltage signal line.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: July 12, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jie Dai, Lu Bai, Pengfei Yu, Huijuan Yang, Huijun Li, Hao Zhang