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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：US11610549B2
公开(公告)日：2023-03-21
申请号：US17603686
申请日：2020-10-19
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Han Yue , Dongni Liu
IPC: G09G3/3258 , G09G3/3233
Abstract: A pixel driving circuit includes a signal control sub-circuit and a time control sub-circuit. The signal control sub-circuit includes a first driving sub-circuit connected to a first node. The signal control sub-circuit is configured to: write at least a first data signal into the first node, and enable the first driving sub-circuit to output a driving signal according to the first data signal and a first power supply voltage signal. The time control sub-circuit includes a second driving sub-circuit including a first transistor connected to a second node and the signal control sub-circuit. The time control sub-circuit is configured to: transmit a second power supply voltage signal and a third power supply voltage signal to the second node in different periods, so as to control a turn-on time of the first transistor and transmit the driving signal to an element to be driven when the first transistor is turned on.
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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：US11335224B2
公开(公告)日：2022-05-17
申请号：US17255529
申请日：2020-05-07
Applicant: BOE Technology Group Co., Ltd.
Inventor： Dongni Liu , Minghua Xuan , Han Yue , Li Xiao , Liang Chen , Hao Chen
Abstract: A pixel circuit, a driving method thereof, and a display device are provided. The pixel circuit includes: a light-emitting assembly including a plurality of light-emitting elements; a driving sub-circuit electrically coupled to the light-emitting assembly and configured to generate driving current for driving the light-emitting assembly; and a repair sub-circuit electrically coupled to the light-emitting assembly and configured to: receive a repair scanning signal (Gate_R, Gate_Ri) and a repair data signal (Data_R, Data_Ri), and provide the driving current to at least one light-emitting element capable of emitting light normally among the plurality of light-emitting elements under the control of the repair scanning signal (Gate_R, Gate_Ri) and the repair data signal (Data_R, Data_Ri).
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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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Patent Agency Ranking
公开(公告)号：US10978002B2
公开(公告)日：2021-04-13
申请号：US16632989
申请日：2019-06-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Han Yue , Minghua Xuan
IPC: G09G3/3258 , G09G3/3266
Abstract: Disclosed are a pixel circuit, a driving method thereof, and a display panel. The pixel circuit includes a driving circuit, a data writing circuit, a storage circuit, a light emitting circuit and a grayscale regulation circuit. The driving circuit includes a control terminal, a first terminal and a second terminal, and is configured to control a driving current; the data writing circuit is configured to write a data signal into the control terminal of the driving circuit; the storage circuit is configured to store the data signal; one terminal of the grayscale regulation circuit is connected with the second terminal of the driving circuit, another terminal thereof is connected with a first terminal of the light emitting circuit, and the grayscale regulation circuit is configured to regulate a voltage of the first terminal of the light emitting circuit according to the data signal in response to a switch driving signal.
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公开(公告)号：US10714002B2
公开(公告)日：2020-07-14
申请号：US16098235
申请日：2018-04-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pengcheng Lu , Xiaochuan Chen , Minghua Xuan , Shengji Yang , Lei Wang , Li Xiao , Dongni Liu , Jie Fu , Han Yue , Jian Gao , Changfeng Li
IPC: G09G3/30 , G09G3/36 , G09G3/3225 , G09G3/32 , G09G3/20
Abstract: A pixel circuit and a driving method thereof, a display panel and a display device are disclosed. The pixel circuit includes an input control sub-circuit, a switch control sub-circuit, a latch sub-circuit and a light-emitting sub-circuit. The input control sub-circuit writes a data signal into a first node under control of the gate signal terminal. The switch control sub-circuit conducts a first terminal or a second terminal of the latch sub-circuit with the first node under control of a switch signal control terminal. The latch sub-circuit outputs a high-level signal to the first node, when the first node is conductive with the first terminal and outputs a low-level signal to the first node, when the first node is conductive with the second terminal. The light-emitting sub-circuit emits light when the first node is supplied with the high-level signal.
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公开(公告)号：US10580360B2
公开(公告)日：2020-03-03
申请号：US15744986
申请日：2017-08-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jie Fu , Xiaochuan Chen , Shengji Yang , Lei Wang , Yankai Gao , Dongni Liu , Han Yue , Li Xiao , Pengcheng Lu , Mingfu Han
IPC: G09G3/3258 , G09G3/3233 , H01L27/32 , H01L51/52 , G09G3/3266
Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a driving circuit, a light emitting circuit, a fusing circuit and a fusing control circuit. The driving circuit is configured to convert a voltage signal input from a first voltage terminal into a driving current signal, and to output the driving current signal to the fusing circuit; the fusing circuit is configured to disconnect the light emitting circuit from the driving circuit; the fusing control circuit is configured to control the driving current signal to flow to the ground terminal under control of a signal input from the control line, to disconnect the light emitting circuit from the driving circuit; and the light emitting circuit is configured to emit light under control of the second voltage terminal in a case that the light emitting circuit is not disconnected from the driving circuit.
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公开(公告)号：US20190129244A1
公开(公告)日：2019-05-02
申请号：US16090814
申请日：2018-02-12
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pengcheng Lu , Xiaochuan Chen , Shengji Yang , Lei Wang , Dongni Liu , Han Yue , Jie Fu , Li Xiao , Jian Gao , Changfeng Li
IPC: G02F1/1335 , F21V8/00 , G02F1/1362 , G02F1/13357
Abstract: A display device and a display method are provided. The display device includes: a light source; a light guide plate; and a liquid crystal display panel including a first substrate and a second substrate aligned with and assembled to the first substrate and a liquid crystal layer between the first substrate and the second substrate. A light transmitting pattern is provided in the light guide plate, and an incident light from the light source is configured to transmit through the light transmitting pattern of the light guide plate to form monochromatic lights of at least three colors. The light source is time-divisionally lit, so that the monochromatic lights of at least three colors are time-divisionally irradiated onto a same sub-pixel electrode on the first substrate in each frame time to form reflected lights, and then the reflected lights are modulated by the liquid crystal layer to be displayed.
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公开(公告)号：US10115927B2
公开(公告)日：2018-10-30
申请号：US15715323
申请日：2017-09-26
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jie Fu , Xiaochuan Chen , Shengji Yang , Dongni Liu , Lei Wang , Li Xiao , Pengcheng Lu , Han Yue
Abstract: A display substrate, a display panel and a display device are provided. The display substrate includes: a base substrate including a plurality of display units, wherein each of the plurality of display units is provided with an anode, an organic light-emitting layer and a cathode, wherein anodes of different display units are separated from each other; a plurality of cathode lines connected to the driving ICs, wherein the cathode lines are arranged between the cathode and the base substrate; an insulating layer arranged between the cathode lines and the cathodes, wherein a plurality of cathode windows corresponding to the cathode lines formed in the insulating layer, wherein at least part of the plurality of cathode windows respectively corresponds to at least two display regions, a cathode at each of the display region is connected to the respective cathode line via the cathode window corresponding to the display region.
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