Patents Assigned to HEFEI BOE JOINT TECHNOLOGY CO., LTD.
  • Publication number: 20250151540
    Abstract: A display substrate and a display device. The display substrate includes a base substrate, and a plurality of pixel units and a plurality of scanning lines on the base substrate. Each pixel unit includes a plurality of sub-pixels and a light shielding layer, the plurality of sub-pixels is arranged in sequence in a first direction, each sub-pixel includes a sub-pixel driving circuitry and a light-emitting element coupled to each other, and the sub-pixel driving circuitry is configured to provide a driving signal to the light-emitting element. At least a part of the light shielding layer is arranged between the sub-pixel driving circuitry and the base substrate. Each scanning line includes at least a part extending in the first direction, is coupled to a corresponding sub-pixel driving circuitry, and is arranged at a same layer as the light shielding layer.
    Type: Application
    Filed: January 8, 2025
    Publication date: May 8, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yongqian LI, Can YUAN, Xuehuan FENG
  • Publication number: 20250140182
    Abstract: A display panel includes a first pixel driving circuit and a second pixel driving circuit. A data writing transistor and a driving transistor in the first pixel driving circuit, a driving transistor and a data writing transistor in the second pixel driving circuit are sequentially arranged. In the first pixel driving circuit, a first electrode plate of a capacitor is coupled to the driving transistor at a first coupling position and coupled to a first light-emitting device at a second coupling position located at a side of the first coupling position away from the data writing transistor. In the second pixel driving circuit, a first electrode plate of a capacitor is coupled to the driving transistor at a third coupling position and coupled to a second light-emitting device at a fourth coupling position located between the third coupling position and the data writing transistor.
    Type: Application
    Filed: June 1, 2022
    Publication date: May 1, 2025
    Applicants: Hefei BOE Joint Technology Co.,Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong YUAN, Yongqian LI, Can YUAN, Liu WU
  • Patent number: 12288525
    Abstract: A method of processing data, an electronic device, and a storage medium are provided. The method includes: acquiring voltage values of a plurality of sub-pixels to be detected in the pixel array; determining a plurality of sub-pixels to be compensated from the plurality of sub-pixels to be detected according to the voltage values of the plurality of sub-pixels to be detected, where differences between the voltage values of the plurality of sub-pixels to be compensated and voltage values of corresponding adjacent sub-pixels are greater than or equal to a first filtering threshold; determining at least one sub-pixel column to be compensated according to a position of the plurality of sub-pixels to be compensated in the pixel array; and performing a filtering compensation on the voltage values of a plurality of sub-pixels in the at least one sub-pixel column to be compensated based on a second filtering threshold.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: April 29, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Wenchao Bao, Miao Liu, Cheng Xu, Yao Zhang
  • Patent number: 12288514
    Abstract: A display method, including: performing a full-screen display refresh on a display panel at a first refresh rate; meanwhile, setting a refresh factor to n, where n is a positive integer; refreshing the local area of the display panel at the second refresh rate; increasing the refresh factor by m, where m is a positive integer; determining whether the refresh factor is greater than or equal to a set value; if yes, performing the full-screen display refresh on the display panel at the first refresh rate; setting the refresh factor to n; and if no, continuing refreshing the same local area of the display panel at the second refresh rate; increasing the refresh factor by m, where the second refresh rate is greater than the first refresh rate, and the second refresh rate is an integer multiple of the first refresh rate.
    Type: Grant
    Filed: August 18, 2022
    Date of Patent: April 29, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchao Bao, Zhidong Yuan, Xiaolong Wei, Min He, Huihui Li
  • Patent number: 12288516
    Abstract: A display module includes a display panel, at least one bonding circuit board, a plurality of chip-on-films, and a plurality of buffer devices. The at least one bonding circuit board each include first differential lines, and a first differential line includes a P-polarity differential sub-line and an N-polarity differential sub-line. An end of a chip-on-film is connected to the first differential line, and the other end of the chip-on-film is connected to the display panel. The buffer devices are arranged on the bonding circuit board, a buffer device is connected to ends, proximate to the chip-on-film, of the P-polarity differential sub-line and the N-polarity differential sub-line, and the buffer device is configured to reduce signal reflection between the first differential line and the chip-on-film.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: April 29, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchao Bao, Yue Wu, Huihui Li, Miao Liu, Cheng Xu, Jingbo Xu
  • Publication number: 20250131879
    Abstract: Provided are a display panel, a driving method therefor and a display device. The display panel includes pixel driving circuits and a first gate driving circuit. The pixel driving circuit includes a driving circuit connected to first to third nodes for inputting a driving current to the third node through the second node, and a first switching unit having a first terminal connected to the third node and a second terminal connected to a sensing signal terminal for electrically connecting, in response to a signal at a control terminal thereof, the third node and sensing signal terminal. The first gate driving circuit includes a first output terminal corresponding to the pixel driving circuit and connected to the control terminal. The first output terminal outputs an active level pulse during data writing stage and black frame insertion stage of a driving cycle of the pixel driving circuit corresponding thereto.
    Type: Application
    Filed: March 29, 2022
    Publication date: April 24, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yongqian LI, Xuehuan FENG
  • Patent number: 12283240
    Abstract: A light-emitting control circuit includes: a first detection control unit configured to transmit a first voltage signal to the first node under control of a detection control signal and a first clock signal; a first light-emitting output unit configured to transmit the first voltage signal to a first output signal terminal under control of a voltage of the first node; a second detection control unit configured to transmit the first voltage signal to a second node under control of the detection control signal and a second clock signal; and a second light-emitting output unit configured to transmit the first voltage signal to a second output signal terminal under control of a voltage of the second node.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: April 22, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO. , LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhidong Yuan, Yongqian Li, Can Yuan
  • Patent number: 12284877
    Abstract: A display device, a display panel thereof, and a method of manufacturing the display panel are provided. The display panel includes: a substrate; a light-emitting structure disposed on the substrate; a pixel driving circuit disposed between the substrate and the light-emitting structure, and including a storage capacitor, an orthographic projection of the storage capacitor on the substrate at least partially overlaps with an orthographic projection of the light-emitting structure on the substrate, the storage capacitor includes a first transparent electrode plate disposed adjacent to the substrate and a second transparent electrode plate disposed far away from the substrate, and an orthographic projection of the first transparent electrode plate on the substrate is located within an orthographic projection of the second transparent electrode plate on the substrate.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: April 22, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhidong Yuan, Can Yuan, Xuelian Cheng, Jing Gan, Meng Li
  • Patent number: 12284900
    Abstract: A packaging method of a display panel, the packaging method including: defining, on a cover plate, at least one adhesive coating region that each is to cover a respective target specially-shaped pattern and have a regular shape; forming a packaging adhesive in the at least one adhesive coating region; bonding the cover plate formed with the packaging adhesive with a substrate formed with at least one target specially-shaped pattern, so that a display region of each target specially-shaped pattern is located within a respective adhesive coating region; and cutting the substrate and the cover plate that have been bonded according to the target specially-shaped pattern to obtain the display panel.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: April 22, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Peng Li, Xinwei Gao, Dandan Zang, Qihe Chen
  • Patent number: 12274128
    Abstract: A display substrate, including: a base, and a plurality of sub-pixels arranged on the base. At least one of the plurality of sub-pixels includes a pixel driving circuit and a light-emitting element electrically connected to the pixel driving circuit. The pixel driving circuit includes a plurality of transistors and at least one storage capacitor. In a direction perpendicular to the base, the display substrate includes: a semiconductor layer, a first metal layer, a second metal layer, a third metal layer and a fourth metal layer, which are sequentially arranged on the base. The semiconductor layer includes: an active layer of the plurality of transistors. The first metal layer includes at least a scanning line extending in a first direction, a gate electrode of the plurality of transistors, and a first capacitor electrode plate of the storage capacitor.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: April 8, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yongqian Li, Can Yuan
  • Patent number: 12272414
    Abstract: A shift register includes a first scan unit, a leakage prevention unit, and a leakage prevention input unit. The first scan unit includes a first input circuit configured to transmit an input signal to a first pull-up node. The leakage prevention input unit is configured to: transmit a first voltage signal to a leakage prevention input node; and transmit a second voltage signal to the leakage prevention input node. The first voltage signal and the second voltage signal are different. The leakage prevention unit is configured to transmit one of the first voltage signal and the second voltage signal from the leakage prevention input node to a first leakage prevention node.
    Type: Grant
    Filed: November 7, 2023
    Date of Patent: April 8, 2025
    Assignees: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan Feng, Yongqian Li
  • Patent number: 12266409
    Abstract: The disclosure provides a shift register unit, including: a sensing control circuit configured to write an active level signal to a sensing control node; a first sensing input circuit connected to a first pull-up back node and configured to write an active level signal to the first pull-up back node; a first display input circuit connected to a first pull-up node and configured to write an active level signal to the first pull-up node; a first switch circuit connected in series between the first pull-up node and the first pull-up back node and configured to control connection and disconnection between the first pull-up node and the first pull-up back node in response to control of a signal from a switch signal input terminal; and a first driving output circuit connected to the first pull-up back node and configured to write a signal to a first driving signal output terminal.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: April 1, 2025
    Assignees: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan Feng, Dacheng Zhang
  • Publication number: 20250107317
    Abstract: Provided is an organic light-emitting diode, including a first electrode, a second electrode, at least two emission layers, a first hole transport layer and a second hole transport layer. A color of a mixture of light emitted from the at least two emission layers is white. The at least two emission layers includes a first emission layer and a second emission layer. The first electrode, the first emission layer, the first hole transport layer, the second hole transport layer, the second emission layer, and the second electrode are disposed on a base substrate and are sequentially laminated in a direction going away from the base substrate. A thickness of the second hole transport layer is greater than a first thickness threshold. A ratio of the thickness of the second hole transport layer to a thickness of the first hole transport layer ranges from 15 to 40.
    Type: Application
    Filed: March 16, 2023
    Publication date: March 27, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xinyu LI, Xinxin WANG, Xiang WAN, Cheng XU, Dandan ZHOU, Ningning WANG
  • Publication number: 20250104626
    Abstract: A display substrate and a display device. The display substrate includes a driving circuit layer, a first scanning line and a second scanning line. The driving circuit layer includes pixel units arranged in an array form, each pixel unit includes a plurality of sub-pixels, at least one sub-pixel includes a pixel driving circuit, the pixel driving circuit includes a first transistor and a second transistor, an active pattern of the first transistor includes a first channel region, an active pattern of the second transistor includes a second channel region, the first channel region is located on a side of the first scanning line away from the second scanning line, and the second channel region is located on a side of the second scanning line away from the first scanning line.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 27, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can YUAN, Yongqian LI, Zhidong YUAN, Cheng XU, Dacheng ZHANG, Dandan ZHOU, Liu WU, Luke DING, Xiuting LIU
  • Publication number: 20250095545
    Abstract: A method for compensating a display panel includes: acquiring a first detection data set, the first detection data set including first detection data of the plurality of sub-pixel units; acquiring pre-stored position information of abnormal sub-pixel units, the position information being used to indicate positions of sub-pixel units whose display are abnormal; replacing first detection data of a first abnormal sub-pixel unit in the first detection data set based on first detection data of a target sub-pixel unit, so as to acquire a second detection data set, the target sub-pixel unit being at least one normal sub-pixel unit adjacent to the first abnormal sub-pixel unit among the plurality of sub-pixel units, and the first abnormal sub-pixel unit being any of the sub-pixel units indicated by the position information; and compensating data voltages of the plurality of sub-pixel units according to the second detection data set.
    Type: Application
    Filed: January 5, 2023
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Pengfei YIN, Min HE, Miao LIU, Cheng XU
  • Publication number: 20250095564
    Abstract: Provided is a display device. The display device includes: a display panel and a control assembly; wherein the display panel includes a base substrate, a plurality of first color light-emitting units, and a sensing unit, wherein the sensing unit is electrically connected to the plurality of first color light-emitting units to acquire a plurality of sensing values; the control assembly is electrically connected to the sensing unit, and configured to acquire a plurality of rearranged sensing values by rearranging the plurality of sensing values; and the control assembly is further configured to adjust the plurality of first color light-emitting units in the display panel based on the plurality of rearranged sensing values.
    Type: Application
    Filed: November 25, 2022
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xuehuan FENG, Song MENG
  • Publication number: 20250095565
    Abstract: A driving signal generation circuit includes a first node generation circuit, a second node generation circuit, a third node generation circuit, a first control node control circuit, a second control node control circuit and an output circuit; the second control node control circuit is configured to control to connect the second control node and the first clock signal terminal under the control of the potential of the second control node, and control the potential of the second control node according to the potential of the second node; the output circuit is configured to output corresponding driving signal through the driving signal output terminal under the control of the potential of the first control node and the potential of the second control node.
    Type: Application
    Filed: July 29, 2022
    Publication date: March 20, 2025
    Applicants: HEFEI BOE JOINT TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xuehuan FENG, Pan XU, Yongqian LI
  • Publication number: 20250098446
    Abstract: A display substrate and driving method thereof, a display device are provided. The display substrate includes: a base substrate, and a plurality of repeating units and a plurality of data lines on the base substrate, the plurality of repeating units are divided into plurality of repeating unit columns; each repeating unit includes a plurality of subpixels, the subpixel includes a subpixel driving circuit, the subpixel driving circuit includes a data writing transistor, a writing control transistor and a driving transistor; the first electrode of the data writing transistor is coupled to the corresponding data line, the second electrode of the data writing transistor is coupled to the first electrode of the writing control transistor, and the second electrode of the writing control transistor is coupled to the gate of the driving transistor.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Liu Wu, Zhidong Yuan, Luke Ding, Yongqian Li, Cheng Xu, Dandan Zhou, Dacheng Zhang
  • Publication number: 20250095523
    Abstract: Embodiments of the present disclosure provide a compensating method and apparatus for a display panel, and a display device. The method includes: acquiring sensing voltages of a target sub-pixel and a sub-pixel set, where the sub-pixel set includes a plurality of first sub-pixels, and the first sub-pixels are disposed within a set range around the target sub-pixel and have the same color as the target sub-pixel; determining, based on the sensing voltages of the target sub-pixel and the sub-pixel set, whether the target sub-pixel belongs to a defective pixel; replacing the sensing voltage of the target sub-pixel by a sensing voltage of a normal pixel in the sub-pixel set if the target sub-pixel belongs to the defective pixel; and electrically compensating the target sub-pixel based on the replaced sensing voltage.
    Type: Application
    Filed: January 6, 2023
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Song MENG, Wenchao BAO, Cheng XU, Miao LIU
  • Publication number: 20250098447
    Abstract: A display substrate and a display device are provided. The display substrate includes: a base substrate, data lines and sub-pixels on the base substrate. The sub-pixels include a sub-pixel driving circuit and a light-emitting element including a first electrode. The sub-pixel driving circuit includes a driving transistor and a data writing transistor having a first electrode coupled to the data line through a second connection structure. A second electrode of the driving transistor is coupled to the first electrode through a first connection structure. The first and second connection structures are in a non-aperture region of the sub-pixel. Orthographic projections of the first and second connection structures onto the base substrate are arranged along a first direction. An orthographic projection of the second connection structure onto the base substrate and an aperture region of the sub-pixel are along a second direction which intersects the first direction.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 20, 2025
    Applicants: Hefei BOE Joint Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Yuan, Zhidong Yuan, Liu Wu, Luke Ding, Yongqian Li, Cheng Xu, Dandan Zhou, Dacheng Zhang