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21.发明授权公开(公告)号：US12211447B2
公开(公告)日：2025-01-28
申请号：US17765045
申请日：2021-03-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guangliang Shang , Jiangnan Lu , Long Han , Li Wang , Libin Liu , Xinshe Yin , Shiming Shi
IPC: G09G3/3266 , G11C19/28
Abstract: A shift register circuit includes a first control sub-circuit and a first output sub-circuit. The first control sub-circuit is configured to: adjust a voltage of a first node to a turn-on voltage due to an influence of a first direct current voltage signal from a first clock signal terminal, an initial voltage signal from an initial signal terminal and a second direct current voltage signal from a second clock signal terminal; and maintain the voltage of the first node at the turn-on voltage due to an influence of a first clock signal from the first clock signal terminal and a second clock signal from the second clock signal terminal. The first output sub-circuit is configured to be turned on under a control of the turn-on voltage of the first node to transmit a first voltage signal from a first voltage terminal to a signal output terminal.
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公开(公告)号：US12205506B2
公开(公告)日：2025-01-21
申请号：US17781988
申请日：2021-03-24
Applicant: BOE Technology Group Co., Ltd.
Inventor： Jiangnan Lu , Guangliang Shang , Libin Liu , Long Han , Yu Feng
Abstract: A display substrate and a display device are provided. The display substrate includes a shift register unit, a first clock signal line and a first power line, the shift register unit includes a charge pump circuit, and the charge pump circuit includes a first capacitor, a first transistor and a second capacitor. The charge pump circuit is electrically connected with a first input node and a first node, respectively. A first electrode plate of the first capacitor is connected with the first clock signal line, a second electrode plate of the first capacitor is connected with the first input node, a first electrode plate of the second capacitor is connected with the first power line, a second electrode plate of the second capacitor is connected with the first node, a gate electrode of the first transistor is connected with a first electrode or a second electrode of the first transistor.
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公开(公告)号：US12191320B2
公开(公告)日：2025-01-07
申请号：US17627768
申请日：2021-03-09
Inventor： Wenqiang Li , Long Han , Ling Shi , Ke Liu , Xuewei Tian , Kuo Sun , Pinfan Wang
IPC: H01L27/12
Abstract: A display panel and a display device. Because the pixel distribution density in a second display subarea (A12) is lower than that in a first display subarea (A11), the quantities of sub-pixels (pix) connected to scanning lines are not completely the same; a sub-pixel row having the greatest quantity of sub-pixels (pix) in the display panel is taken as a reference sub-pixel row, the quantity of the sub-pixels (pix) of the reference sub-pixel row is taken as a reference value, a sub-pixel row having the quantity of sub-pixels (pix) smaller than the reference value is taken as a compensation sub-pixel row, and a scanning line connected to the compensation sub-pixel row is taken as a first scanning line; the display panel is provided with load compensation units corresponding to at least part of the first scanning lines, and the load compensation units are located in the second display subarea.
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公开(公告)号：US12165581B2
公开(公告)日：2024-12-10
申请号：US17637815
申请日：2021-04-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Libin Liu , Li Wang , Guangliang Shang , Yu Feng , Long Han , Baoyun Wu , Shiming Shi
IPC: G09G3/3233
Abstract: A pixel circuit, a driving method therefor and a display apparatus are provided. The pixel circuit includes a driving sub-circuit, a write sub-circuit, a compensation sub-circuit, a reset sub-circuit, a first light-emitting control sub-circuit, a second light-emitting control sub-circuit, a leak-proof sub-circuit, a storage sub-circuit and a light-emitting element. The reset sub-circuit is configured to reset a fourth node under control of a signal of a light-emitting control signal terminal and reset a fifth node under control of a signal of a reset control signal terminal. The compensation sub-circuit is configured to compensate a threshold voltage of the driving sub-circuit to the fifth node under the control of a signal of a first scanning signal terminal. The leak-proof sub-circuit is configured to write a signal of the fifth node into a first node under control of a signal of a second scanning signal terminal.
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公开(公告)号：US12150353B2
公开(公告)日：2024-11-19
申请号：US17630589
申请日：2021-02-08
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: H10K59/131 , G09G3/3233 , H10K59/126
Abstract: A display substrate has sub-pixels. Each column of sub-pixels includes first and second sub-pixels alternately arranged. The display substrate includes a base, a second source-drain metal layer including first and second connection portions, and a first source-drain metal layer including first and second data lines alternately arranged. A pixel driving circuit of each first sub-pixel is connected to a second end of a first connection portion, and a first end there is connected to a corresponding first data line. A pixel driving circuit of each second sub-pixel is connected to a second end of a second connection portion, and a first end thereof is connected to a corresponding second data line. In a same column of sub-pixels, an extension direction of a first line connecting a second end of a first connection portion and a second end of a second connection portion is substantially parallel to a second direction.
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Patent Agency Ranking
公开(公告)号：US20230155088A1
公开(公告)日：2023-05-18
申请号：US17628425
申请日：2021-02-03
Applicant: BOE Technology Group Co., Ltd.
Inventor： Long Han , Pinfan Wang , Fangxu Cao , Wenqiang Li , Libin Liu
IPC: H01L33/62 , H01L27/15 , H01L29/786 , H01L27/12
CPC classification number: H01L33/62 , H01L27/124 , H01L27/156 , H01L27/1255 , H01L29/78696
Abstract: A display substrate and a display device. The display substrate includes: a plurality of pixel islands, a first opening, a second opening and a first passage region. Each pixel island includes at least one pixel, each pixel includes a plurality of first driving lines, the first passage region is provided with a plurality of first connection lines, each of the plurality of pixel islands further includes a plurality of transfer lines, and the plurality of transfer lines are arranged in different layers from the plurality of first driving lines and cross each other to form a plurality of overlapping regions; the plurality of transfer lines are electrically connected with the plurality of first driving lines through via holes located in part of the overlapping regions, and the transfer lines in two adjacent pixel islands are respectively connected with the plurality of first connection lines in the first passage region.
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公开(公告)号：US11538395B2
公开(公告)日：2022-12-27
申请号：US17256233
申请日：2020-03-18
Applicant: BOE Technology Group Co., Ltd.
Inventor： Guangliang Shang , Jiangnan Lu , Can Zheng , Hao Zhang , Long Han , Libin Liu , Shiming Shi , Dawei Wang
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 signals of the signal input terminal to the first control node, and provide signals of the first power supply terminal or the first clock signal terminal to the second control node. The first control circuit is configured to provide signals of the second power supply terminal or the second clock signal terminal to the first output terminal. The second control circuit is configured to provide signals of the first power supply terminal to the second output terminal. The output circuit is configured to provide signals of the second power supply terminal to the second output terminal.
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公开(公告)号：US11232734B2
公开(公告)日：2022-01-25
申请号：US16964465
申请日：2019-09-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Guangliang Shang , Can Zheng , Jiangnan Lu , Tian Dong , Libin Liu , Long Han , Shiming Shi , Dawei Wang
Abstract: A shift register unit, a driving method, a gate driving circuit and a display device are provided. The shift register unit includes a first gate driving output circuit and a second gate driving output circuit. The first gate driving output circuit is used to output a first gate driving signal through the first gate driving signal output terminal; the second gate driving output circuit is used to generate a second gate driving signal outputted simultaneously with the first gate driving signal based on the first gate driving signal, a first clock signal and a second clock signal. In the present disclosure, the second gate driving output circuit is added, the first gate driving signal, the first clock signal, and the second clock signal are used to generate an inverted second gate driving signal, so that positive and negative switching control signals are generated by one stage of shift register unit.
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公开(公告)号：US11217162B2
公开(公告)日：2022-01-04
申请号：US16762043
申请日：2019-12-05
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: G09G3/3233 , G11C19/28
Abstract: The present disclosure discloses a pixel driving circuit, a pixel circuit, a display panel and a display apparatus, wherein the pixel driving circuit is used for driving a light-emitting element to emit light, and includes: a plurality of switching transistors, wherein each of the switching transistors is an oxide thin film transistor.
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公开(公告)号：US10916188B2
公开(公告)日：2021-02-09
申请号：US16336957
申请日：2018-05-24
Inventor： Long Han
IPC: G09G3/3225 , G09G3/3208
Abstract: The present disclosure relates to the field of display technologies, and more particularly, to a pixel circuit. The pixel circuit includes a drive transistor and an OLED light-emitting element. A first switching element transmits an initialization signal to the drive transistor in response to a reset signal. A second switching element transmits a data signal to the drive transistor in response to a scanning signal. A third switching element transmits the data signal to a coupling capacitor in response to the scanning signal. A fourth switching element is connected to the drive transistor in response to the scanning signal. A fifth switching element transmits a first power signal to the first terminal of the drive transistor in response to a control signal. A sixth switching element transmits, in response to the control signal, an output current of the drive transistor to the OLED light-emitting element.
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