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公开(公告)号：US20240386846A1
公开(公告)日：2024-11-21
申请号：US18257837
申请日：2022-06-24
Inventor： Dachao LI , Shengji YANG , Xiaochuan CHEN , Zhijian ZHU , Junyan YANG
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-in control circuit and a first control circuit; a first terminal of the first energy storage circuit is electrically connected to a control terminal of the driving circuit, and a second terminal of the first energy storage circuit is electrically connected to a first terminal of the driving circuit; a first terminal of the second energy storage circuit is electrically connected to a control terminal of the driving circuit; the writing-in control circuit is configured to control to connect or disconnect the writing-in terminal and the second terminal of the second energy storage circuit under the control of the first writing-in control signal provided by the first writing-in control terminal.
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公开(公告)号：US20240138189A1
公开(公告)日：2024-04-25
申请号：US18476687
申请日：2023-09-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dachao LI , Shengji YANG , Chen XU
IPC: H10K59/121 , G09G3/3233 , H10K59/131 , H10K71/00
CPC classification number: H10K59/1213 , G09G3/3233 , H10K59/131 , H10K71/00 , G09G2300/0426 , G09G2330/021 , H10K59/1201
Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate, and the pixel circuit includes a driving transistor, a first transistor, and a second transistor; the driving transistor includes a control electrode, a first electrode, and a second electrode; the first transistor includes a first active region, the second transistor includes a second active region, the driving transistor includes a fourth active region, at least one of a doping concentration of the first active region and a doping concentration of the second active region is greater than a doping concentration of the fourth active region.
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公开(公告)号：US20220384550A1
公开(公告)日：2022-12-01
申请号：US16957605
申请日：2019-08-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dachao LI , Shengji YANG , Chen XU
IPC: H01L27/32
Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate. The pixel circuit includes a driving transistor, a first transistor, and a second transistor; the driving transistor includes a control electrode, a first electrode, and a second electrode; a direction from a first electrode of the first transistor to a second electrode of the first transistor is a first direction, a direction from a first electrode of the second transistor to a second electrode of the second transistor is a second direction, a direction from the first electrode of the driving transistor to the second electrode of the driving transistor is a fourth direction, and at least one of the first direction and the second direction intersects with the fourth direction.
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公开(公告)号：US20220328608A1
公开(公告)日：2022-10-13
申请号：US17852485
申请日：2022-06-29
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dachao LI , Shengji YANG , Chen XU
IPC: H01L27/32
Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate. The pixel circuit includes a driving transistor, a first transistor, and a second transistor; the base substrate includes a semiconductor body that can be doped, and a first conductive layer and a second conductive layer that are on the semiconductor body; the first transistor includes a first doped region in contact with the first electrode of the first transistor, and a second doped region in contact with a second electrode of the first transistor, and the first doped region of the first transistor and the second doped region of the first transistor are spaced apart from each other, have a same doping type, and are both in the semiconductor body.
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公开(公告)号：US20220310757A1
公开(公告)日：2022-09-29
申请号：US17430403
申请日：2020-03-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dachao LI
IPC: H01L27/32 , G09G3/3233 , G09G3/20
Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and sub-pixels on the base substrate. The sub-pixel includes a pixel circuit including a data writing sub-circuit, a storage sub-circuit, a driving sub-circuit and a resistance device. The resistance device is connected between the driving sub-circuit and the light-emitting element, and is in a same layer as a control electrode of the driving sub-circuit and is insulated from the control electrode. A resistivity of the resistance device is higher than a resistivity of the control electrode of the driving sub-circuit.
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Patent Agency Ranking
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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公开(公告)号：US20240185779A1
公开(公告)日：2024-06-06
申请号：US17795869
申请日：2021-09-15
Inventor： Junbo WEI , Dachao LI , Shengji YANG , Pengcheng LU , Kuanta HUANG , Zhijian ZHU , Yuanlan TIAN
IPC: G09G3/3233 , G09G3/00
CPC classification number: G09G3/3233 , G09G3/006 , G09G2300/0819 , G09G2300/0861 , G09G2310/08 , G09G2320/0233 , G09G2330/08
Abstract: A display substrate, a pixel circuit, a driving method and a display device are provided. The display substrate includes a substrate and a plurality of repeating units arranged in an array on one side of the substrate, each repeating unit includes at least two light emitting elements and at least two pixel circuits, each pixel circuit includes a first transistor, a second transistor and a third transistor, and the third transistor is configured to drive the light emitting element to emit light; each repeating unit further includes a first region, a second region and a third region arranged continuously in the first direction, the first region includes at least two of the first transistors, the third region including at least two of the third transistors, and the type of the first transistor and the type of the third transistor are different.
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公开(公告)号：US20220319422A1
公开(公告)日：2022-10-06
申请号：US17426850
申请日：2020-03-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dachao LI
IPC: G09G3/3233 , H01L27/32 , G09G3/20
Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, a pixel row, and a first scan line and a second scan line on the base substrate. The pixel row includes a plurality of sub-pixels along a first direction on the base substrate; the first scan line and the second scan line are extended along the first direction, and each sub-pixel includes a pixel circuit including a data writing sub-circuit, a storage sub-circuit, and a driving sub-circuit. The first scan line and the second scan line are respectively electrically connected with the data writing circuit to provide control signals. The first scan line and the second scan line have the same resistance and the same area of orthographic projections on the base substrate.
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公开(公告)号：US20210183982A1
公开(公告)日：2021-06-17
申请号：US16960729
申请日：2019-08-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dachao LI , Shengji YANG , Chen XU
IPC: H01L27/32
Abstract: A display device and a manufacturing method thereof are disclosed. The display device includes a base substrate and at least one pixel circuit provided on the base substrate. The pixel circuit includes a driving transistor, a first transistor, and a second transistor; the base substrate includes a semiconductor body that can be doped, and a first conductive layer and a second conductive layer that are on the semiconductor body; the first transistor includes a first doped region in contact with the first electrode of the first transistor, and a second doped region in contact with a second electrode of the first transistor, and the first doped region of the first transistor and the second doped region of the first transistor are spaced apart from each other, have a same doping type, and are both in the semiconductor body.
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