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公开(公告)号：US09936586B2
公开(公告)日：2018-04-03
申请号：US14910801
申请日：2015-07-30
Inventor： Jie Ge , Peng Wang , Xueling Gao , Yubo Wang , Boning Wang
CPC classification number: H05K3/30 , B65H20/18 , B65H23/26 , B65H35/06 , B65H37/04 , G02F1/1333 , H01L24/75 , H05K2201/10681 , H05K2203/0195
Abstract: An attaching apparatus for chip-on-films includes: a base; a rotary table; a first driving device configured to drive the rotary table to rotate around the axis of the rotary table; a TCP side adhesive-attaching mechanism configured to attach a conductive film onto a chip-on-film on a carrier located in the TCP adhesive-attaching region; a PCB side adhesive-attaching mechanism configured to attach a conductive film onto a chip-on-film on a carrier located in the PCB adhesive-attaching region; and a pre-pressing mechanism configured to pre-press conductive films attached on a chip-on-film on a carrier located in the pre-pressing region. The rotary table is in a first operating position, a second operating position, a third operating position and a fourth operating position successively during a rotation around its axis. When the rotary table is in any one of the operating positions, there is always one carrier in each region of the base.
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公开(公告)号：US11651737B2
公开(公告)日：2023-05-16
申请号：US17726875
申请日：2022-04-22
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Tieshi Wang , Xueling Gao , Zhiqiang Xu , Chengchung Yang , Haoran Liu
IPC: G09G3/3258 , G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3258 , G09G3/3233 , G09G3/3266
Abstract: A circuit for driving a pixel includes a driving transistor having a first end connected to a first node, a control end connected to a second node, and a second end connected to a third node; a writing circuit connected to a first scanning signal and the first node and configured to transmit a data signal to the first node; a reset circuit connected to a second scanning signal and configured to transmit a reference signal to the second node; a compensation circuit connected to a compensation control signal and configured to put through a connection between the second end and the control end of the driving transistor in response to the compensation control signal, wherein the compensation control signal is different from the first scanning signal and the second scanning signal; and an energy storage circuit connected between a first power end and the second node.
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公开(公告)号：US11620942B2
公开(公告)日：2023-04-04
申请号：US16466418
申请日：2018-11-21
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Chengchung Yang , Xueling Gao , Kuanjun Peng
IPC: G09G3/3233
Abstract: A pixel circuit, a driving method thereof and a display device are provided. The pixel circuit includes a drive circuit, a data writing circuit, a compensation-and-reset circuit, and a storage circuit. The drive circuit includes a control terminal, a first terminal and a second terminal, and is configured to control a driving current for driving a light-emitting element to emit light; the data writing circuit is configured to write a data signal to the control terminal of the drive circuit in response to a scanning signal; the compensation-and-reset circuit is configured to apply the reset voltage to the control terminal of the drive circuit in response to a compensation signal; the storage circuit is configured to store the data signal that is wrote and a threshold voltage, and to couple and adjust a voltage of the control terminal of the drive circuit.
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公开(公告)号：US11335265B2
公开(公告)日：2022-05-17
申请号：US16638898
申请日：2019-03-13
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueling Gao , Kuanjun Peng , Wei Qin
IPC: G09G3/3258 , G09G3/20 , G09G3/3291
Abstract: The present disclosure relates to a pixel circuit. The pixel circuit may include a storage capacitor, an initialization sub-circuit and a light-emitting control sub-circuit. The initialization sub-circuit is configured to store an initial voltage of the initial voltage terminal in the first terminal of the storage capacitor under a control of a light-emitting control signal of the light-emitting control terminal; and the light-emitting control sub-circuit is configured to apply a first voltage of the first voltage terminal to the first terminal of the storage capacitor. The first voltage terminal and the initial voltage terminal are separated terminals.
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公开(公告)号：US11125922B2
公开(公告)日：2021-09-21
申请号：US16527751
申请日：2019-07-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Kai Guo , Xiaolong Li , Xueling Gao , Kuanjun Peng , Shengnan Li , Weixing Liu
Abstract: The present disclosure provides a structured retroreflector. The structured retroreflector includes a transparent substrate, a plurality of transflective structure layers disposed on one side of the transparent substrate and mutually laminated and parallel, wherein distances between any two adjacent transflective structure layers are equal and 0.1λ to 10λ, λ being a wavelength of incident light, and a transparent filling layer disposed between any two adjacent transflective structure layers.
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Patent Agency Ranking
公开(公告)号：US11030959B2
公开(公告)日：2021-06-08
申请号：US16650217
申请日：2018-09-17
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueling Gao , Kuanjun Peng , Chengchung Yang , Xiangxiang Zou , Wei Qin
IPC: G09G3/3291
Abstract: A pixel circuit and a driving method thereof and a display device are provided. In the pixel circuit, a driving circuit is configured to control a driving current flowing through a first terminal and a second terminal of the driving circuit for driving a light emitter element to emit light; a data writing circuit is configured to write a data signal to a control terminal of the driving circuit in response to a scan signal; a first light emission control circuit is configured to apply a first voltage to the first terminal in response to a first light emission control signal; a first reset circuit is configured to apply a reset voltage to the control terminal in response to a first reset signal. The driving circuit is in a fixed bias state when the reset voltage and the first voltage are applied together to the driving circuit.
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公开(公告)号：US11024232B2
公开(公告)日：2021-06-01
申请号：US16769420
申请日：2019-11-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueling Gao , Kuanjun Peng , Wei Qin , Zhiqiang Xu , Tieshi Wang , Xiaolong Li , Jintao Peng
IPC: G09G3/3258 , G09G3/3275
Abstract: A pixel driving circuit and a driving method thereof, and a display panel are provided. The pixel driving circuit includes a driving sub-circuit, a reset sub-circuit, a light-emitting control sub-circuit, and a first compensation sub-circuit, the reset sub-circuit, the light-emitting control sub-circuit, and the first compensation sub-circuit are configured to, in an initialization phase, under control of a first driving signal and a second driving signal, provide the first power supply voltage provided by the first power supply input terminal to the control terminal of the driving sub-circuit; the first terminal of the driving sub-circuit is connected to the second power supply input terminal to receive the second power supply voltage; and the first power supply voltage and the second power supply voltage are configured to cause the driving sub-circuit to be in an on-bias state in the initialization phase.
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公开(公告)号：US10733933B2
公开(公告)日：2020-08-04
申请号：US16146420
申请日：2018-09-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xueling Gao
IPC: G09G3/32 , G09G3/3233 , G09G3/3291
Abstract: Embodiments of the present disclosure provide a pixel driving circuit configured to drive a light emitting element to emit light. The pixel driving circuit may comprise a driving sub-circuit, coupled to the light emitting element; a data writing sub-circuit, coupled to the driving sub-circuit and configured to receive a scanning signal, a reference voltage signal, and a data signal, and supply the reference voltage signal and the data signal to the driving sub-circuit successively under a control of the scanning signal; and a light emitting controlling sub-circuit, coupled to the data writing sub-circuit and the driving sub-circuit, and configured to receive a first controlling signal and a second controlling signal, and to control the driving sub-circuit to drive the light emitting element to emit light under a control of the first controlling signal and the second controlling signal.
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公开(公告)号：US10726782B2
公开(公告)日：2020-07-28
申请号：US16390204
申请日：2019-04-22
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xueling Gao , Jikai Yao , Kuanjun Peng , Chengchung Yang
IPC: G09G3/3233 , G09G3/3266 , G09G3/3275 , H01L27/32
Abstract: A pixel circuit, a method for driving the same, a display panel and a display device are provided. The pixel circuit includes a driver transistor, a data writing sub-circuit, an initializing sub-circuit, a voltage prewriting sub-circuit, a threshold compensating sub-circuit, a first light-emission control sub-circuit, a second light-emission control sub-circuit, a capacitor, and a light-emitting element. The voltage prewriting sub-circuit pre-stores voltage of a light-emission supply voltage terminal into the capacitor before the light-emitting element emits light, the magnitude of light-emission current is dependent upon the voltage of the light-emission supply voltage terminal, and independent of the voltage of the first voltage source.
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公开(公告)号：US10720104B2
公开(公告)日：2020-07-21
申请号：US15977450
申请日：2018-05-11
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xueling Gao , Cheng Chung Yang , Kuanjun Peng , Xiangxiang Zou , Yang Yang
IPC: G09G3/3258 , G09G3/3233 , G09G3/3291 , G09G3/3266
Abstract: A pixel circuit and a driving method thereof, and a display device. The pixel circuit includes a pixel unit and a bias-voltage regulating circuit. The pixel unit includes: a driving circuit configured to generate a driving current according to a control voltage at a light-emitting stage; a light-emitting control circuit configured to output the driving current to drive the light-emitting device to emit light at the light-emitting stage; a data writing circuit configured to write a data voltage into the driving circuit; a reset circuit configured to reset the driving circuit under control of a reset voltage, and to reset the light-emitting device under control of a gate line; and a bias-voltage regulating circuit configured to, before the data writing circuit writes the data voltage into the driving circuit, perform bias voltage regulation on the driving circuit to control the pixel unit to be in a bias voltage state.
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