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公开(公告)号：US20220399426A1
公开(公告)日：2022-12-15
申请号：US17441738
申请日：2020-12-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yunlong LI , Pengcheng LU , Longfei FAN , Dongsheng LI , Zhijian ZHU , Yuanlan TIAN
Abstract: This disclosure provides a display device, a display panel, and a fabrication method thereof. The display panel includes a driving backplane, a first electrode layer, a pixel definition layer, a light-emitting functional layer, and a second electrode layer. The first electrode layer is arranged on a side surface of the driving backplane and includes a first electrode and a transferring ring. The pixel definition layer covers the first electrode layer and the driving backplane. The light-emitting functional layer is arranged on a surface of the first electrode layer facing away from the driving backplane, and the light-emitting functional layer is in a range of a transferring area of the driving backplane. The second electrode layer covers the pixel definition layer and the light-emitting functional layer. A boundary of the second electrode layer is inside a boundary of the pixel definition layer and is connected with the transferring ring.
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公开(公告)号：US20240221643A1
公开(公告)日：2024-07-04
申请号：US17918590
申请日：2021-05-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongsheng LI , Longfei FAN , Qian WU
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0426 , G09G2300/0842 , G09G2310/0286 , G09G2330/021
Abstract: The line drive signal enhancement circuit includes a first control unit, a second control unit, a first output unit and a second output unit. The first control unit is used for outputting the first power supply voltage to the first node or the second node under the control of the first control terminal and the second control terminal. The second control unit is used for outputting the second power supply voltage to the second node in response to the first power supply voltage on the first node, and is further used for outputting the second power supply voltage to the first node in response to the first power supply voltage on the second node.
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公开(公告)号：US20220101776A1
公开(公告)日：2022-03-31
申请号：US17307996
申请日：2021-05-04
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Qian WU , Longfei FAN
IPC: G09G3/32
Abstract: A pixel circuit, a pixel driving method and a display device are provided in the present disclosure. The pixel circuit includes a light-emitting element, a pixel driving circuit, an on-off control circuit and a light-emission time control circuit. A control terminal of the on-off control circuit is electrically coupled to the light-emission time control circuit, and the on-off control circuit is configured to control a driving current output terminal to be coupled to, or decoupled from, the light-emitting element under the control of a potential at the control terminal of the on-off control circuit. The light-emission time control circuit is configured to control an nth light-emission time control signal output terminal to be coupled to, or decoupled from, the control terminal of the on-off control circuit in accordance with an nth light-emission control data voltage under the control of a second gate driving signal. N is an integer larger than 1, and n is a positive integer smaller than or equal to N.
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公开(公告)号：US20250127020A1
公开(公告)日：2025-04-17
申请号：US18293381
申请日：2021-10-21
Inventor： Zhijian ZHU , Pengcheng LU , Shengji YANG , Kuanta HUANG , Xiaochuan CHEN , Qian WU , Longfei FAN , Dacheng ZHANG
Abstract: A display module, including: a display panel; a color film layer, provided on a light-emitting side of the display panel, where the color film layer includes a plurality of light-filtering portions; and a micro-lens layer, provided on a side of the color film layer away from the display panel; where, the micro-lens layer includes a plurality of first converging lenses and a plurality of second converging lenses, a gap is provided between two adjacent first converging lenses, and an orthographic projection of a first converging lens on the display panel is located within an orthographic projection of a light-filtering portion on the display panel; a second converging lens is provided in the gap between two adjacent first converging lenses, and the second converging lens is connected to the first converging lens.
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公开(公告)号：US20250078718A1
公开(公告)日：2025-03-06
申请号：US18701296
申请日：2023-07-31
Inventor： Shanghong JIANG , Dachao LI , Longfei FAN , Yaoxi MA , Pengcheng LU , Shengji YANG , Xiaochuan CHEN
Abstract: Provided is a gate drive circuit, including a plurality of shift registers and buffers in cascade, wherein each of the shift registers is configured to output a first gate scanning signal stage by stage according to a preset scanning timing; and each of the buffers is configured to perform waveform inversion on the first gate scanning signal for a plurality of times to convert the first gate scanning signal into a second gate scanning signal, wherein falling edge time of the second gate scanning signal is less than falling edge time of the first gate scanning signal.
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Patent Agency Ranking
公开(公告)号：US20240404471A1
公开(公告)日：2024-12-05
申请号：US18762797
申请日：2024-07-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongsheng LI , Longfei FAN , Qian WU
IPC: G09G3/3233
Abstract: The line drive signal enhancement circuit includes a first control unit, a second control unit, a first output unit and a second output unit. The first control unit is used for outputting the first power supply voltage to the first node or the second node under the control of the first control terminal and the second control terminal. The second control unit is used for outputting the second power supply voltage to the second node in response to the first power supply voltage on the first node, and is further used for outputting the second power supply voltage to the first node in response to the first power supply voltage on the second node.
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公开(公告)号：US20240395199A1
公开(公告)日：2024-11-28
申请号：US18262699
申请日：2022-05-31
Inventor： Dachao LI , Zhijian ZHU , Shengji YANG , Xiaochuan CHEN , Junyan YANG , Pengcheng LU , Longfei FAN
IPC: G09G3/3233
Abstract: A pixel circuit includes a light emitting element, a driving circuit, a first energy storage circuit, a second energy storage circuit, and a writing-in control circuit; a first terminal of the first energy storage circuit is electrically connected to a control terminal of the driving circuit and a first terminal of the writing-in control circuit respectively, and a second terminal of the first energy storage circuit is electrically connected to a first terminal of driving circuit, a first terminal of the second energy storage circuit is electrically connected to a second terminal of the writing-in control circuit, and a second terminal of the second energy storage circuit is electrically connected to the writing-in terminal.
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公开(公告)号：US20240242649A1
公开(公告)日：2024-07-18
申请号：US17926959
申请日：2021-11-23
Inventor： Longfei FAN , Pengcheng LU
IPC: G09G3/20
CPC classification number: G09G3/20 , G09G2300/0852 , G09G2310/061 , G09G2310/08
Abstract: A driving circuit includes a driving signal output terminal, a first node control circuit, an on-off control circuit and a first output circuit. The first node control circuit controls to connect or disconnect the first node and the first voltage terminal under the control of a first control signal, and control to connect or disconnect the first node and the first voltage terminal under the control of a first clock signal; the first control terminal is different from the first clock signal terminal. The on-off control circuit controls to connect or disconnect the first node and the first output control terminal under the control of a second voltage signal; the first output circuit controls to connect or disconnect the driving signal output terminal and the first clock signal terminal under the control of a potential of the first output control terminal.
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公开(公告)号：US20250087152A1
公开(公告)日：2025-03-13
申请号：US18558265
申请日：2022-12-19
Inventor： Longfei FAN , Yaoxi MA , Dachao LI , Shanghong JIANG , Pengcheng LU , Shengji YANG , Xiaochuan CHEN
IPC: G09G3/3233
Abstract: A display substrate includes an array substrate including pixels and pixel driving circuits. A pixel driving circuit includes a driving sub-circuit and a storage sub-circuit. The storage sub-circuit includes: a first capacitor coupled to a first node and a second node, and a second capacitor coupled to the second node and a first voltage signal terminal. The driving sub-circuit is configured to generate a driving current under control of the storage sub-circuit and transmit the driving current to a light-emitting device. In a direction perpendicular to the array layer, the first plate, the second plate, the third plate and the fourth plate have an overlapping region therebetween.
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公开(公告)号：US20240395200A1
公开(公告)日：2024-11-28
申请号：US18267788
申请日：2022-07-29
Inventor： Ning CONG , Longfei FAN , Dachao LI , Can ZHANG , Minghua XUAN , Xiaochuan CHEN
IPC: G09G3/3233 , H10K59/12 , H10K59/121 , H10K59/131
Abstract: A display substrate, a manufacturing method thereof and a display apparatus are provided. The display substrate includes multiple sub-pixels, a sub-pixel includes a first region (q1), a gap region (q3) and a second region (q2); the sub-pixel includes a first transistor (T1) including first active layer (1) and first gate electrode (11), a second transistor (T2) including second active layer (2) and second gate electrode (12) and a third transistor (T3) including third active layer (3) and third gate electrode (13); the first active layer is disposed in the first region, the second active layer and the third active layer are disposed in the second region, and via holes through which the first gate electrode and the third gate electrode are connected to a scan signal line and a via hole through which the second gate electrode is connected to the first transistor are provided in the gap region.
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