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公开(公告)号：US12295193B2
公开(公告)日：2025-05-06
申请号：US17634287
申请日：2021-03-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Can Wang , Wei Li , Lijun Yuan , Jingjing Zhang , Can Zhang , Jinfei Niu , Ning Cong , Minghua Xuan , Xiaochuan Chen , Xue Dong , Qi Qi
Abstract: A display substrate and a display device are provided. The display substrate includes light emitting diode chips, each light emitting diode chip includes light emitting units which respectively emit light of different colors, each light emitting unit includes a first electrode, a light emitting layer, a base and a second electrode, and the base and the second electrode are respectively located at both sides of the light emitting layer. In each light emitting diode chip, the light emitting units share the base and the first electrode, the light emitting layers of the light emitting units emit light of the same color, and at least one light emitting unit further includes a first color conversion layer located at a side of the base away from the light emitting layer, so as to convert first color light emitted by the light emitting layer into second color light.
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2.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：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：US11450270B2
公开(公告)日：2022-09-20
申请号：US16484621
申请日：2019-01-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Liang Chen , Lei Wang , Dongni Liu , Li Xiao , Minghua Xuan , Xiaochuan Chen , Shengji Yang , Pengcheng Lu , Detao Zhao , Ning Cong
IPC: G09G3/3233 , G09G3/3275
Abstract: A pixel circuit and a method of driving the same, and a display device. The pixel circuit includes a plurality of pixel compensation circuits, and each pixel compensation circuit can be connected to M light-emitting units located in the same column. Each light-emitting control signal terminal of the M light-emitting control signal terminals included in each light-emitting control signal terminal group may be connected to a pixel compensation circuit group (i.e., K rows of pixels compensation circuits).
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公开(公告)号：US11430372B2
公开(公告)日：2022-08-30
申请号：US16467135
申请日：2018-12-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Minghua Xuan , Han Yue , Ning Cong , Xiaochuan Chen , Lei Wang
Abstract: The present disclosure relates to a pixel circuit. The pixel circuit may include at least one light emitting circuit. One of the at least one light emitting circuit may include an input sub-circuit, a latch sub-circuit, and an output sub-circuit. The input sub-circuit may be configured to transmit a signal at a data voltage terminal to the latch sub-circuit. The latch sub-circuit may be configured to generate a control signal in accordance with the signal at the data voltage terminal and store the control signal. The output sub-circuit may be configured to transmit one of a signal at a first voltage terminal and a signal at a second voltage terminal to a light emitting unit under control of the control signal.
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公开(公告)号：US20210366362A1
公开(公告)日：2021-11-25
申请号：US16484087
申请日：2018-11-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Minghua Xuan , Han Yue , Xiaochuan Chen , Ning Cong
IPC: G09G3/32
Abstract: The present application discloses a pixel circuit for a light-emitting diode display panel. The pixel circuit includes a reset sub-circuit configured to initialize voltage levels of some nodes. Additionally, the pixel circuit includes a data-input and compensation sub-circuit configured to load a data signal and adjust the voltage levels of the nodes for determining a driving current flown through a driving sub-circuit. The pixel circuit further includes a voltage-control sub-circuit for controlling a switch sub-circuit to determine whether the driving current is flowing or not. Moreover, the pixel circuit includes an emission-control sub-circuit configured to control a partial time span in one scan for passing the driving current to the light-emitting diode to drive light emission. The one scan is one of multiple different scans in one cycle time of displaying one frame of image.
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