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81.发明授权公开(公告)号：US12283234B2
公开(公告)日：2025-04-22
申请号：US18642994
申请日：2024-04-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Can Wang , Yan Qu , Can Zhang , Minghua Xuan , Xiaochuan Chen , Ning Cong , Jinfei Niu , Jingjing Zhang
IPC: G09G3/32
Abstract: A pixel driving circuit including a driving circuit, a first light emission control circuit and a first digital circuit. The driving circuit is connected to a first power source end, a first node and the light-emitting unit, and is used for providing, according to the voltage of the first node, a driving current for the light-emitting unit by using the first power source end; the first light emission control circuit is connected to a first digital signal end; and the first digital circuit comprises a first signal conversion circuit, and the first signal conversion circuit is connected to a first analog signal end and the first digital signal end and is used for inputting the first digital signal into the first digital signal end according to a first analog signal of the first analog signal end.
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公开(公告)号：US12237316B2
公开(公告)日：2025-02-25
申请号：US17778540
申请日：2021-06-25
Applicant: BOE Technology Group Co., Ltd.
Inventor： Wei Li , Can Wang , Can Zhang , Li Xiao , Minghua Xuan , Lijun Yuan , Jinfei Niu , Jingjing Zhang , Guangcai Yuan
Abstract: A display substrate, including: a base substrate including at least a side edge and a display area; a plurality of pixel units disposed in the display area, a second pixel unit is located on a side of a first pixel unit close to the side edge, edges of the second pixel unit include the side edge, a third pixel unit is located between the first pixel unit and the second pixel unit, and the third pixel unit is adjacent to the second pixel unit; and a plurality of light emitting diode chips disposed on the base substrate a first light emitting diode chip is located in the first pixel unit, a part of a second light emitting diode chip is located in the second pixel unit, and the other part of the second light emitting diode chip is located in the third pixel unit.
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公开(公告)号：US20240413288A1
公开(公告)日：2024-12-12
申请号：US18696006
申请日：2023-06-13
Applicant: BOE Technology Group Co., Ltd.
Inventor： Can Zhang , Xinxin Zhao , Ning Cong , Minghua Xuan , Xiaochuan Chen
Abstract: Provided are a display base plate and a preparation method thereof and a display apparatus, belonging to the technical field of display devices. The display base plate comprises a substrate, and a light-emitting diode and a driving circuit which are patterned and arranged on one side of the substrate, and the light-emitting diode comprises a first semiconductor layer, a light-emitting layer and a second semiconductor layer which are stacked; and the driving circuit is respectively connected with the first semiconductor layer and the second semiconductor layer, and is used for driving the light-emitting diode to emit light. By the display base plate and the preparation method thereof and the display apparatus provided by the embodiment of the application, the difficulty of integrating the driving circuit and the light-emitting diode in the display base plate can be reduced, so that a preparation process of the display base plate is simpler.
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公开(公告)号：US12073762B2
公开(公告)日：2024-08-27
申请号：US18206715
申请日：2023-06-07
Applicant: BOE Technology Group Co., Ltd.
Inventor： Lijun Yuan , Can Zhang , Ning Cong , Wei Li , Can Wang , Jinfei Niu , Jingjing Zhang , Minghua Xuan
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2300/0426 , G09G2310/0278 , G09G2310/061
Abstract: The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.
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公开(公告)号：US11955061B2
公开(公告)日：2024-04-09
申请号：US17787479
申请日：2021-03-03
Inventor： Ning Cong , Xiaochuan Chen , Minghua Xuan , Can Zhang , Ming Yang , Lijun Yuan , Angran Zhang
IPC: G09G3/3208 , G09G3/32 , G09G3/3233 , G09G3/3258 , H03K5/24
CPC classification number: G09G3/32 , G09G2300/0842 , G09G2310/061 , G09G2310/08 , G09G2320/0233 , G09G2320/0247
Abstract: Provided is a pixel driving circuit configured to provide a signal to a to-be-driven element. The pixel driving circuit includes: a current control sub-circuit, configured to transmit a current signal; a time length control sub-circuit, configured to transmit a time signal; and an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively; where the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal; the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, where duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same.
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Patent Agency Ranking
公开(公告)号：US11670220B2
公开(公告)日：2023-06-06
申请号：US17418808
申请日：2020-12-28
Inventor： Ning Cong , Minghua Xuan , Can Zhang , Ming Yang , Can Wang , Lijun Yuan
IPC: G09G3/32 , G09G3/3233
CPC classification number: G09G3/32 , G09G3/3233 , G09G2300/0426 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/08 , G09G2320/0233 , G09G2330/021
Abstract: A pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and can adjust an electric potential of the second control node based on an electric potential of the second connection node. A method for driving a pixel circuit, a display substrate, and a display device is also provided.
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公开(公告)号：US11663955B2
公开(公告)日：2023-05-30
申请号：US17433244
申请日：2021-02-07
Inventor： Ning Cong , Minghua Xuan , Can Zhang , Ming Yang , Can Wang , Angran Zhang , Hao Chen , Xiaochuan Chen
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2300/0426 , G09G2310/0278 , G09G2310/08
Abstract: A pixel circuit, a drive method, a display substrate, and a display device are provided. The pixel circuit includes a light emitting device, a current supply sub-circuit, and a time control sub-circuit. The current supply sub-circuit is connected to a scanning signal terminal, a data signal terminal, a light emitting control terminal, a first power voltage terminal, the time control sub-circuit, and the light emitting device, and is configured to receive a data voltage of the data signal terminal and provide a drive current for the light emitting device. The time control sub-circuit is connected to the scanning signal terminal, a time length signal terminal, a second power voltage terminal, a direct current control signal terminal, and a direct current voltage terminal, and is configured to receive a time length voltage of the time length signal terminal and a direct current voltage input by the direct current voltage terminal.
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公开(公告)号：US11620939B2
公开(公告)日：2023-04-04
申请号：US17609238
申请日：2020-10-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Han Yue , Can Zhang , Minghua Xuan
Abstract: A pixel driving circuit includes: a driving control sub-circuit configured to write at least a first data signal into a first driving sub-circuit in response to a first scanning signal and cause a driving transistor to output a driving signal to an element to be driven according to the first data signal and a first power supply voltage signal in response to an enable signal, and a time control sub-circuit configured to write at least a second data signal into a second driving sub-circuit in response to a second scanning signal and cause the second driving sub-circuit to be connected to a second power supply voltage signal terminal and the element in response to the enable signal. The second driving sub-circuit is configured to output a second power supply voltage signal to the element in response to the second data signal and a common voltage signal.
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公开(公告)号：US11374074B2
公开(公告)日：2022-06-28
申请号：US16639114
申请日：2019-10-09
Applicant: BOE Technology Group Co., Ltd.
Inventor： Ming Yang , Can Zhang , Minghua Xuan , Chuanxiang Xu , Feng Zhang , Zhongyuan Sun , Xiaochuan Chen
Abstract: A display panel is provided. The display panel includes a base substrate; a first conductive layer on the base substrate, and in an encapsulated area and a peripheral area of the display panel; a second conductive layer on a side of the first conductive layer away from the base substrate, and in the encapsulated area and the peripheral area; an organic insulating layer between the first conductive layer and the second conductive layer, and limited in the encapsulated area; a first inorganic insulating layer between the first conductive layer and the second conductive layer, and on a side of the organic insulating layer away from the base substrate; and a second inorganic insulating layer between the organic insulating layer and the first conductive layer. The first inorganic insulating layer covers the organic insulating layer.
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公开(公告)号：US11289026B2
公开(公告)日：2022-03-29
申请号：US17267547
申请日：2020-06-08
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ming Yang , Can Zhang , Shengji Yang , Weihai Wang , Minghua Xuan , Xiaochuan Chen
IPC: G09G3/32 , G09G3/3258
Abstract: The present disclosure provides a pixel circuit, including: a pixel driving circuit coupled to a gate line and a data line and configured to generate a driving current based on a data signal provided by the data line in response to a gate driving signal provided by the gate line and output the driving current through a current output terminal; and a shunt circuit coupled to the gate line and a first control signal line, and configured to control connection/disconnection between a first signal input terminal and a first signal output terminal in response to the gate driving signal and a first control signal provided by the first control signal line. The current output terminal is coupled to a first terminal of a light emitting device and the first signal input terminal, and the first signal output terminal is coupled to a to-be-charged pixel circuit.
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