Patents by Inventor Xueling GAO
Xueling GAO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10991306Abstract: A circuit of driving 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 connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.Type: GrantFiled: June 28, 2019Date of Patent: April 27, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Tieshi Wang, Xueling Gao, Zhiqiang Xu, Chengchung Yang, Haoran Liu
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Patent number: 10971069Abstract: A pixel driving circuit, a driving method and a display device are provided. The pixel driving circuit includes a driving unit, a capacitor unit, a data write-in unit connected to a corresponding gate line, a corresponding data line and the driving unit, a power source control unit connected to a first light-emitting control end, a power source signal input end and the driving unit, and a first light-emitting control unit connected to a second light-emitting control end, the power source signal input end and the driving unit and configured to, within a predetermined time period of a light-emitting stage, control the power source signal input end to be electrically connected to the driving unit under the control of the second light-emitting control end, stop the operation of the driving unit, and enable the light-emitting unit not to emit light.Type: GrantFiled: April 18, 2019Date of Patent: April 6, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Tieshi Wang, Kuanjun Peng, Wei Qin, Chengchung Yang, Xueling Gao, Xiaolong Li, Zhiqiang Xu, Yan Wei, Shengnan Li
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Patent number: 10962825Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.Type: GrantFiled: June 3, 2019Date of Patent: March 30, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Qin, Kuanjun Peng, Xiaolong Li, Tieshi Wang, Xueling Gao, Jintao Peng, Shengnan Li
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Publication number: 20210074214Abstract: A pixel driving circuit, a pixel driving method and a display device are provided. The pixel driving circuit includes a driving circuit, an initialization circuit and a compensation control circuit. The compensation control circuit is configured to control a control end of the driving circuit to be electrically connected to a second end of the driving circuit under the control of a compensation control line. The initialization circuit is configured to write an initial voltage into the second end of the driving circuit under the control of an initialization control line.Type: ApplicationFiled: December 18, 2019Publication date: March 11, 2021Inventors: Shengnan LI, Xueling GAO
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Patent number: 10937368Abstract: A voltage compensation method, a voltage compensation device, a display device and a computer-readable storage medium are provided. The voltage compensation method includes: determining a first voltage of a target pixel in a first image; determining a second voltage of the target pixel in a second image, where the second image is switched from the first image; determining a voltage compensation value based on the first voltage and the second voltage; an determining a transition voltage based on the voltage compensation value and the second voltage, and compensating the second voltage by the transition voltage; where a gray-level of the target pixel in the first image is greater than a gray-level of the target pixel in the second image, the transition voltage is a driving voltage of the target pixel between the first voltage and the second voltage.Type: GrantFiled: March 21, 2019Date of Patent: March 2, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jintao Peng, Kuanjun Peng, Wei Qin, Chengchung Yang, Wanpeng Teng, Zhiqiang Xu, Xueling Gao
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Publication number: 20200388222Abstract: A voltage compensation method, a voltage compensation device, a display device and a computer-readable storage medium are provided. The voltage compensation method includes: determining a first voltage of a target pixel in a first image; determining a second voltage of the target pixel in a second image, where the second image is switched from the first image; determining a voltage compensation value based on the first voltage and the second voltage; an determining a transition voltage based on the voltage compensation value and the second voltage, and compensating the second voltage by the transition voltage; where a gray-level of the target pixel in the first image is greater than a gray-level of the target pixel in the second image, the transition voltage is a driving voltage of the target pixel between the first voltage and the second voltage.Type: ApplicationFiled: March 21, 2019Publication date: December 10, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jintao PENG, Kuanjun PENG, Wei QIN, Chengchung YANG, Wanpeng TENG, Zhiqiang XU, Xueling GAO
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Patent number: 10832618Abstract: The present disclosure relates to a pixel circuit and a method of driving the pixel circuit, and a display device. A pixel circuit, including: a light emitting device; a driving circuit; a data writing circuit; a light emitting control circuit; a threshold compensation circuit; a first storage circuit; and a second storage circuit.Type: GrantFiled: October 4, 2018Date of Patent: November 10, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling Gao, Chengchung Yang
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Publication number: 20200342813Abstract: A pixel driving circuit is provided. The pixel driving circuit includes an initialization circuit, a driving circuit, and a first light-emitting control circuit. A first terminal of the driving circuit is coupled to a power voltage terminal, a second terminal of the driving circuit is coupled to a light-emitting element via the first light-emitting control circuit. The initialization circuit is configured to write an initialization voltage to a control terminal of the driving circuit under control of an initialization control signal input from an initialization control line, so that the driving circuit brings a connection between the first and second terminals into a conducting state under control of the control terminal. The first light-emitting control circuit is configured to bring a connection between the second terminal and the light-emitting element into a conducting state under control of a first light-emitting control signal input from a first light-emitting control line.Type: ApplicationFiled: August 30, 2019Publication date: October 29, 2020Inventors: Xueling GAO, Kuanjun PENG, Wei QIN, Wanpeng TENG
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Patent number: 10803806Abstract: Pixel circuit and display substrate and driving methods, and display apparatus are provided.Type: GrantFiled: April 10, 2018Date of Patent: October 13, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling Gao, Chengchung Yang, Kuanjun Peng, Wei Qin, Xiangxiang Zou, Yang Yang
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Publication number: 20200319521Abstract: A display panel, a method for preparing a display panel and a method for adjusting an intensity of ambient light reflected on a display panel are provided in embodiments of the disclosure. The display panel includes: a base substrate; a plurality of sub-pixel units (20) on the base substrate comprising a plurality of light emitting portions respectively; an electrochromic assembly on a light-emergent side of the plurality of light emitting portions; and a light intensity detector configured to detect an incident intensity of ambient light, and the electrochromic assembly comprises a plurality of electrochromic portions covering the plurality of light emitting portions, respectively; and transmittance of the plurality of electrochromic portions for ambient light varies with a change in the incident intensity of ambient light.Type: ApplicationFiled: October 25, 2019Publication date: October 8, 2020Applicant: BOE Technology Group Co., Ltd.Inventors: Wei Qin, Xiaolong Li, Tieshi Wang, Jintao Peng, Xueling Gao, Yanan Niu, Kuanjun Peng, Shengnan Li
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Publication number: 20200302867Abstract: 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.Type: ApplicationFiled: November 11, 2019Publication date: September 24, 2020Applicant: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling GAO, Kuanjun PENG, Wei QIN, Zhiqiang XU, Tieshi WANG, Xiaolong LI, Jintao PENG
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Publication number: 20200273411Abstract: 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.Type: ApplicationFiled: September 17, 2018Publication date: August 27, 2020Inventors: Xueling GAO, Kuanjun PENG, Chengchung YANG, Xiangxiang ZOU, Wei QIN
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Patent number: 10755636Abstract: The present disclosure discloses a pixel circuit and a driving method thereof, a display substrate and a display device, the pixel circuit includes: an initialization sub-circuit, a writing compensation sub-circuit, a light-emitting enabling sub-circuit, a light-emitting device, and a driving sub-circuit, the light-emitting enabling sub-circuit is configured to couple the driving sub-circuit to the light-emitting device under control of an enabling signal terminal. The initialization sub-circuit is configured to input a voltage of an initial voltage terminal to a gate of a driving transistor in the driving sub-circuit under control of a reset signal terminal to initialize the driving sub-circuit. The writing compensation sub-circuit is configured to input, under control of a scanning signal terminal, a data voltage output from a data signal terminal to the driving sub-circuit to perform data compensation on the driving sub-circuit.Type: GrantFiled: December 10, 2018Date of Patent: August 25, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chengchung Yang, Xueling Gao, Kuanjun Peng
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Patent number: 10733933Abstract: 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.Type: GrantFiled: September 28, 2018Date of Patent: August 4, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Xueling Gao
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Patent number: 10726782Abstract: 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.Type: GrantFiled: April 22, 2019Date of Patent: July 28, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling Gao, Jikai Yao, Kuanjun Peng, Chengchung Yang
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Publication number: 20200233124Abstract: The present disclosure provides a structured light generator. The structured light generator 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 0.1? to 10?, ? being a wavelength of incident light, and a transparent filling layer disposed between any two adjacent transflective structure layers.Type: ApplicationFiled: July 31, 2019Publication date: July 23, 2020Inventors: Kai GUO, Xiaolong LI, Xueling GAO, Kuanjun PENG, Shengnan LI, Weixing LIU
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Patent number: 10720104Abstract: 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.Type: GrantFiled: May 11, 2018Date of Patent: July 21, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xueling Gao, Cheng Chung Yang, Kuanjun Peng, Xiangxiang Zou, Yang Yang
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Publication number: 20200160787Abstract: A circuit of driving 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 connected to the third node end; a writing circuit, connected a data signal end, a first scanning end and the first node; a first control circuit, connected to a first power end, a light emitting control end and the first node; a reset circuit, connected to a reference signal end, a second scanning end and the second node; a compensation circuit, connected between the second node and the third node; a second control circuit, connected to the third node, a light emitting element and the light emitting control end; and an energy storage circuit, connected between the first power end and the second node. The second end of the light emitting element receives a second voltage signal.Type: ApplicationFiled: June 28, 2019Publication date: May 21, 2020Inventors: Tieshi Wang, Xueling Gao, Zhiqiang Xu, Chengchung Yang, Haoran Liu
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Patent number: 10650753Abstract: A pixel circuit, a method for driving the same, a display panel, and a display device are provided. The pixel circuit includes: a drive controlling sub-circuit, a data writing sub-circuit, a light-emission controlling sub-circuit, a first resetting sub-circuit, a second resetting sub-circuit, a charging sub-circuit, a capacitor sub-circuit, and a light-emitting element; and the respective sub-circuits cooperate in operation so that charges in the drive controlling sub-circuit in the pixel circuit can be reset, and driving current of the drive controlling sub-circuit to drive the light-emitting element to emit light can be made dependent upon the voltage of a data signal, and independent of threshold voltage of the drive controlling sub-circuit.Type: GrantFiled: December 11, 2018Date of Patent: May 12, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chengchung Yang, Kuanjun Peng, Xueling Gao
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Publication number: 20200124912Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.Type: ApplicationFiled: June 3, 2019Publication date: April 23, 2020Inventors: Wei QIN, Kuanjun PENG, Xiaolong Li, Tieshi WANG, Xueling GAO, Jintao PENG, Shengnan Li