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1. 发明授权

US12057069B2 Display substrate and display panel 有权
公开(公告)号：US12057069B2
公开(公告)日：2024-08-06
申请号：US17788111
申请日：2021-05-31
申请人： BOE Technology Group Co., Ltd.
发明人： Yu Feng , Li Wang
IPC分类号： G09G3/3233 , G09G3/3258
CPC分类号： G09G3/3233 , G09G3/3258 , G09G2300/0426 , G09G2300/0861 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0247 , G09G2330/021
摘要： A display substrate and a display panel. The display substrate includes: a base substrate; and a plurality of sub-pixels on the base substrate, each of the plurality of sub-pixels includes a light-emitting element and a pixel circuit for driving the light-emitting element to emit light, the pixel circuit includes a driving sub-circuit, a data writing sub-circuit, a threshold compensation sub-circuit, a current-leakage prevention sub-circuit and a storage sub-circuit; the storage sub-circuit includes a storage capacitor, the storage capacitor includes a first electrode plate, a second electrode plate and a third electrode plate, the first electrode plate and the third electrode plate are electrically connected to each other and are in different layers with respect to the base substrate, and the second electrode plate at least partially overlaps the first electrode plate and the third electrode plate in a direction perpendicular to the base substrate.

2. 发明授权

US12002425B2 Pixel circuit and driving method therefor, and display apparatus 有权
公开(公告)号：US12002425B2
公开(公告)日：2024-06-04
申请号：US18038690
申请日：2020-11-30
申请人： BOE Technology Group Co., Ltd.
发明人： Lujiang Huangfu , Li Wang , Jianchao Zhu , Libin Liu
IPC分类号： G09G3/3233 , G09G3/3291
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0852 , G09G2310/061 , G09G2320/0247 , G09G2330/021
摘要： Provided are a pixel circuit and a driving method therefor, and a display apparatus. The pixel circuit includes a drive transistor, a reset circuit, a data writing circuit, a storage capacitor circuit, a threshold value compensation circuit, a conduction control circuit, a light-emitting control circuit, and a light-emitting device; the conduction control circuit is configured to: conduct the threshold value compensation circuit with the gate of the drive transistor, and conduct the reset circuit with the gate of the drive transistor at the reset stage, the threshold value detecting stage and the data writing stage; and cut off a conducting state of the threshold value compensation circuit with the gate of the drive transistor, and cut off a conducting state of the reset circuit with the gate of the drive transistor at the driving stage; where the conduction control circuit includes an oxide semiconductor thin film transistor.

3. 发明公开

US20240177660A1 PIXEL DRIVING CIRCUIT, DISPLAY PANEL, METHOD OF DRIVING DISPLAY PANEL 审中-公开
公开(公告)号：US20240177660A1
公开(公告)日：2024-05-30
申请号：US17789174
申请日：2021-09-30
申请人： BOE Technology Group Co., Ltd.
发明人： Lujiang Huangfu , Li Wang , Jianchao Zhu , Libin Liu , Yu Feng
IPC分类号： G09G3/3233
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0247
摘要： A pixel driving circuit is provided. The pixel driving circuit includes a storage capacitor (Cst) having a first capacitor electrode (Ce1) and a second capacitor electrode (Ce2); a driving transistor (Td) configured to generate a driving current; and a switch (SW) configured to control connection or disconnection between a gate electrode of the driving transistor (Td) and the first capacitor electrode (Ce1).

4. 发明授权

US11605684B2 Array substrate, control method thereof, manufacturing method thereof, display panel and display device 有权
公开(公告)号：US11605684B2
公开(公告)日：2023-03-14
申请号：US16905851
申请日：2020-06-18
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Li Wang
IPC分类号： H01L27/32 , H01L51/52
摘要： An array substrate, including: a base substrate including a display area and a non-display area; a first transistor in the display area; a second transistor in the non-display area; and a substrate electrode, the substrate electrode including: a first substrate electrode between the first transistor and the base substrate; and a second substrate electrode between the second transistor and the base substrate, wherein the first substrate electrode and the second substrate electrode are configured to adjust threshold voltages of the first transistor and the second transistor, respectively, there is an open circuit between the first substrate electrode and the second substrate electrode, the first substrate electrode is supplied with a first adjustment voltage, the second substrate electrode is supplied with a second adjustment voltage, and an absolute value of the first adjustment voltage is different from an absolute value of the second adjustment voltage.

5. 发明授权

US11538800B2 Display device having a heat dissipation layer with a gap separation portion and manufacturing method thereof 有权
公开(公告)号：US11538800B2
公开(公告)日：2022-12-27
申请号：US16640420
申请日：2019-02-20
申请人： CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
发明人： Wei Li , Jing Wang , Jie Xiang , Li Wang , Ming Li , Na Zhang
IPC分类号： H01L31/0232 , H01L23/34 , H01L21/00 , H05K7/20 , H05K1/00 , H01L25/18 , H01L25/00 , H01L51/52 , H01L27/32
摘要： A display device and a manufacturing method thereof are provided. The display device includes a display panel, a heat dissipation layer, and a chip on film. The heat dissipation layer is on a non-display side of the display panel and includes a driving circuit arranging region and a peripheral region. The heat dissipation layer located in at least a part of the driving circuit arranging region is insulated from the heat dissipation layer located in the peripheral region. The chip on film is on a side of the heat dissipation layer away from the display panel and is in the driving circuit arranging region.

6. 发明授权

US11468840B2 Driving backplane and display panel 有权
公开(公告)号：US11468840B2
公开(公告)日：2022-10-11
申请号：US17119171
申请日：2020-12-11
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Tian Dong , Li Wang
IPC分类号： G09G3/3258 , G09G3/3275 , G09G3/3266 , H01L27/32 , H01L27/12 , G09G3/3233
摘要： Embodiments of the present disclosure provide a driving backplane and a display panel. The driving backplane has a plurality of sub-pixel regions, and includes: a base; a plurality of pixel driving circuits disposed on the base, one of the plurality of pixel driving circuits being disposed in one of the plurality of sub-pixel regions; and a plurality of data lines and a plurality of first power supply voltage lines disposed on the base. The pixel driving circuit is electrically connected to a data line and a first power supply voltage line. The data line and the first power supply voltage line are disposed on a side, away from the base, of the pixel driving circuit, and the data line and the first power supply voltage line are disposed at intervals in a same layer. An orthographic projection of the data line on the base overlaps with an orthographic projection of the pixel driving circuit on the base. The pixel driving circuit includes a driving transistor, a first switching transistor, and a first conductive pattern. The first conductive pattern is located on a side, away from the base, of the driving transistor and the first switching transistor. The first conductive pattern is electrically connected to a gate of the driving transistor through a first via. The first conductive pattern is electrically connected to a second electrode of the first switching transistor through a second via. An orthographic projection of the first conductive pattern on the base is located within an orthographic projection of the first power supply voltage line on the base.

7. 发明授权

US11423842B2 Display panel and manufacturing method thereof, and display device 有权
公开(公告)号：US11423842B2
公开(公告)日：2022-08-23
申请号：US17279757
申请日：2020-06-18
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Li Wang , Bo Wang , Jingquan Wang
IPC分类号： G09G3/3266 , G09G3/3233 , H01L27/32
摘要： Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes: a base substrate; a plurality of sub-pixels and gate lines; and a gate driving circuit including cascaded multistage gate driving units, one or more stages include first and second gate driving sub-circuits. The sub-pixels includes a first and a second groups of sub-pixels. The first group of sub-pixels includes a first, a second, and a third sub-groups of sub-pixels, of which, pixel driving circuits are connected to anodes of light-emitting elements of the first, second and third sub-groups of sub-pixels through a first, a second and a third groups of anode connection lines, respectively. At least one group of anode connection lines includes a plurality of first anode connection lines, of which, a length of one of two first anode connection lines closer to the first gate driving sub-circuit is larger.

8. 发明申请

US20220199735A1 Display Panel and Manufacturing Method Thereof, and Display Device 有权
公开(公告)号：US20220199735A1
公开(公告)日：2022-06-23
申请号：US17279462
申请日：2020-06-18
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Li Wang , Bo Wang , Jingquan Wang
IPC分类号： H01L27/32
摘要： Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes: a base substrate including a display area and a peripheral area; a plurality of sub-pixels and gate lines located at the display area; and a gate driving circuit including cascaded multistage gate driving units, one or more stages gate driving units include first and second gate driving sub-circuits spaced apart by pixel driving circuits of a first group of sub-pixels; a gate driving sub-circuit connection line connected to the first and second gate driving sub-circuits. The pixel driving circuit of at least one of the first group of sub-pixels includes: a first pixel driving sub-circuit including a driving transistor including a first active layer; a second pixel driving sub-circuit; a connector located in a different layer from the first active layer and electrically connected to the first and second pixel driving sub-circuits.

9. 发明授权

US11264443B2 Display substrate with light shielding layer and manufacturing method thereof, and display panel 有权
公开(公告)号：US11264443B2
公开(公告)日：2022-03-01
申请号：US16642814
申请日：2019-03-29
申请人： BOE TECHNOLOGY GROUP CO., LTD.
发明人： Li Wang
IPC分类号： H01L27/32
摘要： A display substrate and a manufacturing method thereof, and a display panel are disclosed. The display substrate includes a base substrate and a pixel driving circuit on the base substrate; and the pixel driving circuit includes a driving transistor and a gate leading line, the driving transistor includes a gate electrode, the gate leading line is electrically connected to the gate electrode, and the gate leading line is between the gate electrode and the base substrate.

10. 发明授权

US11056553B2 Organic light emitting diode display substrate, manufacturing method thereof, and display device comprising organic light emitting diode display substrate 有权
公开(公告)号：US11056553B2
公开(公告)日：2021-07-06
申请号：US16736893
申请日：2020-01-08
申请人： BOE Technology Group Co., Ltd.
发明人： Yipeng Chen , Li Wang , Lujiang Huangfu
IPC分类号： H01L29/08 , H01L27/32 , G09G3/3291
摘要： An organic light emitting diode display substrate, comprises: a base substrate, and a first data line, a driving thin film transistor and an energy storage capacitor which are disposed on the base substrate, wherein the energy storage capacitor comprises a first capacitor plate and a second capacitor plate disposed opposite to each other, and the second capacitor plate is electrically connected to a gate of the driving thin film transistor, in a direction away from the base substrate, the first capacitor plate is disposed between the first data line and the second capacitor plate, wherein the display substrate further comprises a first shielding portion, which is electrically connected to the first capacitor plate and is disposed at least partially between the second capacitor plate and the first data line. A method of manufacturing the display substrate and a display device are further provided.

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