Patents by Inventor Liye DUAN

Liye DUAN 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).

  • Patent number: 9875690
    Abstract: The present invention provides a pixel circuit, a display substrate and a display panel. The pixel circuit comprises a power supply terminal; a control thin film transistor; a drive thin film transistor; a storage capacitor; a light-emitting device, the pixel circuit further comprises a voltage division control module and a voltage division capacitor, the voltage division control module is used for charging the storage capacitor in the pre-charging phase of the pixel circuit, so that voltage of the gate of the drive thin film transistor becomes a reference voltage, and the voltage division control module is capable of outputting a low level to the second end of the storage capacitor in the compensation phase of the pixel circuit. A first end of the voltage division capacitor is connected to the first end of the storage capacitor, a second end thereof is connected to the cathode of the light-emitting device.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: January 23, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lirong Wang, Liye Duan
  • Patent number: 9852685
    Abstract: There are provided a pixel circuit and a driving method thereof, and a display apparatus. The pixel circuit comprises: a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1) and a light emitting device (L).
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: December 26, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liye Duan, Zhongyuan Wu, Lirong Wang, Kun Cao
  • Patent number: 9842542
    Abstract: There are provided a pixel structure, a display panel and a display apparatus. The pixel structure comprises a pixel circuit (11), a switch circuit (12) and n organic light-emitting diodes (13) sharing the pixel circuit (11), where n is greater than or equal to 2. Respective organic light-emitting diodes (13) sharing the pixel circuit (11) are located in a same column of the display panel, and emit lights of a same color when emitting light. The switch circuit (12) is configured to control any two organic light-emitting diodes (13) sharing the pixel circuit (11) to emit light at different periods of time. The pixel circuit (11) is configured to drive of the respective organic light-emitting diodes sharing the pixel circuit (11) to emit light according to a received data signal. The pixel structure is used to solve the problem of the complexity of the back board.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: December 12, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liye Duan, Lirong Wang
  • Patent number: 9837024
    Abstract: A scan driving circuit and a driving method thereof, an array substrate, and a display apparatus are disclosed.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: December 5, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lirong Wang, Liye Duan
  • Patent number: 9799271
    Abstract: The present disclosure discloses a gate driver, a display apparatus and a gate driving method, to achieve a function of outputting a multi-pulse waveform by the gate driver. The gate driver according to the present disclosure comprises multiple groups of driving units, each group of driving units comprising N driving units each of which comprises a shift register and a logic circuit, wherein N is an integer larger than 1, and an output of a shift register is connected to a logic circuit in each driving unit. The shift registers multiplex multiple clock signals with different timings. Each of the shift registers outputs an output signal to a corresponding logic circuit. A part of a clock signal is selected by the logic circuit for output. In this way, a function of outputting a multi-pulse waveform by the gate driver is achieved, which prepares for a shift register having a function of threshold voltage compensation, to make a shift register capable of multi-row scanning become feasible on a display panel.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 24, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lirong Wang, Liye Duan, Zhongyuan Wu
  • Publication number: 20170256200
    Abstract: The present disclosure provides a pixel driving circuit, an array substrate and a display device. The pixel driving circuit comprises a charge storage unit, for receiving a power supply voltage signal; a driving unit, for generating a driving current that drives the OLED to emit light; a reset unit, for writing a voltage of an initial voltage signal into a second terminal of the charge storage unit in a reset phase; a data write unit, for writing a voltage of a data voltage signal and the threshold voltage of the driving unit into the second terminal of the charge storage unit in a data write phase; and a light emitting control unit, for controlling the power supply voltage signal to be written into the driving unit so as to generate the driving signal in a light emitting phase.
    Type: Application
    Filed: October 23, 2015
    Publication date: September 7, 2017
    Inventors: Liye DUAN, Lirong WANG, Chungchun LEE, Chiehhsing CHUNG, Junjie LIN
  • Patent number: 9755624
    Abstract: A ramp signal generating circuit and ramp signal generator, an array substrate and a display apparatus.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: September 5, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liye Duan, Lirong Wang, Zhongyuan Wu
  • Patent number: 9734760
    Abstract: A sensing circuit for external compensation, a sensing method thereof and a display apparatus, the sensing circuit for external compensation comprises a differential amplifier (9), a first capacitor (4), a second capacitor (8) and an output voltage controlling circuit (10) for the first capacitor; a negative input terminal of the differential amplifier (9) is connected with a display panel (1), a positive input terminal thereof is connected with a reference voltage, and an output terminal thereof is connected with an output terminal of the output voltage controlling circuit (10) for the first capacitor; the output voltage controlling circuit (10) for the first capacitor is used for enabling an output voltage of the first capacitor (4) in a subsequent current integral stage to vary based on the reference voltage.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: August 15, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhongyuan Wu, Liye Duan
  • Publication number: 20170228125
    Abstract: Embodiments of the present application provide a display panel, a mobile terminal and a method for controlling a mobile terminal which may allow the user perform single hand operations on a large-size mobile terminal to improve the convenience of the mobile terminal. The display panel includes: a first substrate; a second substrate arranged opposite to the first substrate; and a single hand operation sensing unit arranged on the first substrate or the second substrate, which is configured to sense a single hand holding operation of a user and to trigger the display panel to demagnify an operation graphic interface displayed in full-screen and display the demagnified operation graphic interface in a predetermined single hand operation comfortable region positioned on the basis of a holding position in case that the single hand holding operation of the user is sensed. The display panel is used in single hand operation scene.
    Type: Application
    Filed: January 8, 2016
    Publication date: August 10, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Chungchun Lee, Li Zhou, Liye Duan, Feng Jiang, Xuan He, Long Wang
  • Publication number: 20170206838
    Abstract: Embodiments of the present disclosure provide a pixel driving circuit and a pixel driving method. The pixel driving circuit comprises a driving transistor, a storage capacitor, a light-emitting device, a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor and a fifth switch transistor.
    Type: Application
    Filed: March 24, 2016
    Publication date: July 20, 2017
    Inventors: Cuili GAI, Liye DUAN, Xiaodi LIU
  • Patent number: 9681074
    Abstract: A pixel circuit is provided. The pixel circuit includes a photoelectric converter unit, an amplifier unit, a reset unit, a compensation unit, a charging unit, and a readout unit, wherein the photoelectric converter unit is connected to a first voltage terminal and the amplifier unit, and is configured to convert an optical signal into an electric signal, wherein the amplifier unit is connected to the photoelectric converter unit, the charging unit, and the readout unit, and is configured to amplify an output signal from the photoelectric converter unit, and wherein the reset unit is connected to a reset terminal, the first voltage terminal, and the amplifier unit, and is configured to reset the amplifier unit based on an input signal from the reset terminal and an input signal from the first voltage terminal.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: June 13, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Liye Duan, Chung-Chun Lee, Feng Jiang, Li Zhou, Long Wang, Chieh Hsing Chung
  • Publication number: 20170126994
    Abstract: A pixel circuit is provided. The pixel circuit includes a photoelectric converter unit, an amplifier unit, a reset unit, a compensation unit, a charging unit, and a readout unit, wherein the photoelectric converter unit is connected to a first voltage terminal and the amplifier unit, and is configured to convert an optical signal into an electric signal, wherein the amplifier unit is connected to the photoelectric converter unit, the charging unit, and the readout unit, and is configured to amplify an output signal from the photoelectric converter unit, and wherein the reset unit is connected to a reset terminal, the first voltage terminal, and the amplifier unit, and is configured to reset the amplifier unit based on an input signal from the reset terminal and an input signal from the first voltage terminal.
    Type: Application
    Filed: October 20, 2015
    Publication date: May 4, 2017
    Inventors: Liye DUAN, Chung-Chun LEE, Feng JIANG, Li ZHOU, Long WANG, Chieh Hsing CHUNG
  • Publication number: 20170124955
    Abstract: A scan driving circuit and a driving method thereof, an array substrate, and a display apparatus are disclosed.
    Type: Application
    Filed: September 24, 2015
    Publication date: May 4, 2017
    Inventors: Lirong Wang, Liye Duan
  • Patent number: 9620061
    Abstract: The gate driver circuit is connected to a row of pixel units, each pixel unit includes a pixel driving module and a light-emitting device connected to each other, the pixel driving module including a driving transistor, a driving module and a compensating module, the compensating module being connected to a gate scanning signal, and the driving module being connected to a driving control signal and a driving voltage. The gate driver circuit includes a row pixel controlling unit configured to provide the gate scanning signal to the compensating module and provide the driving voltage to the driving module, so as to control the compensating module to compensate for a threshold voltage of the driving transistor; and a driving control unit configured to provide the driving control signal to the driving module so as to control the driving module to drive the light-emitting device.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 11, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Cao, Zhongyuan Wu, Liye Duan
  • Patent number: 9536474
    Abstract: The present disclosure provides a pixel circuit, its driving method, an array substrate and a display device. The pixel circuit includes a plurality of pixels, each of which includes a blue sub-pixel and a driving module for driving the blue sub-pixel. The blue sub-pixel includes N blue OLEDs, and N is a positive integer greater than 1. The driving module is configured to drive the N blue OLEDs in a time division manner. According to the present disclosure, the blue sub-pixel is segmented into several portions, and merely a portion of the blue sub-pixel is displayed each time. As a result, it is able to prolong the service time of the blue sub-pixel, thereby to increase the service life of an AMOLED panel.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: January 3, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Ren, Liye Duan
  • Patent number: 9536476
    Abstract: The gate driver circuit is connected to a row of pixel unit, each includes a pixel driving module and a light-emitting device connected to each other, the pixel driving module including a driving transistor, a driving module and a compensating module, the compensating module is connected to a first row scanning signal, and the driving module is connected to a second row scanning signal and a driving voltage. The gate driver circuit further includes a row pixel controlling unit configured to provide the first row scanning signal to the compensating module and provide the second row scanning signal and the driving voltage to the driving module, so as to control the compensating module to compensate for a threshold voltage of the driving transistor and control the driving module to drive the light-emitting device.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 3, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Cao, Zhongyuan Wu, Liye Duan
  • Publication number: 20160372046
    Abstract: The present disclosure discloses a gate driver, a display apparatus and a gate driving method, to achieve a function of outputting a multi-pulse waveform by the gate driver. The gate driver according to the present disclosure comprises multiple groups of driving units, each group of driving units comprising N driving units each of which comprises a shift register and a logic circuit, wherein N is an integer larger than 1, and an output of a shift register is connected to a logic circuit in each driving unit. The shift registers multiplex multiple clock signals with different timings. Each of the shift registers outputs an output signal to a corresponding logic circuit. A part of a clock signal is selected by the logic circuit for output. In this way, a function of outputting a multi-pulse waveform by the gate driver is achieved, which prepares for a shift register having a function of threshold voltage compensation, to make a shift register capable of multi-row scanning become feasible on a display panel.
    Type: Application
    Filed: January 30, 2015
    Publication date: December 22, 2016
    Inventors: Lirong Wang, Liye Duan, Zhongyuan Wu
  • Patent number: 9514683
    Abstract: The gate driving circuit according to the present disclosure may be connected to a row pixel unit which includes a row pixel driving module and a light emitting element connected to each other, the row pixel driving module including a driving transistor, a driving module and a compensation module, the compensation module being connected with a gate scanning signal and the driving module being connected with a driving level. The gate driving circuit may further include a row pixel control unit, which is configured to provide the gate scanning signal to the compensation module and provide the driving level to the driving module, so as to control the compensation module to compensate for a threshold voltage of the driving transistor and control the driving module to drive the light emitting element.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: December 6, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kun Cao, Zhongyuan Wu, Liye Duan
  • Patent number: 9514676
    Abstract: Provided are a pixel circuit and driving method thereof and a display apparatus. The pixel circuit comprises a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1), a parasitic capacitor (C2) and a light emitting device (L).
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: December 6, 2016
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhongyuan Wu, Baojiang Zhang, Liye Duan
  • Publication number: 20160335937
    Abstract: The invention provides an array substrate and a driving method thereof, a display panel and a display device. The array substrate comprises a plurality of circulating units and a plurality of pixel circuits. Each circulating unit consists of four sub-pixel units located in four columns and two rows, sub-pixel units in any two adjacent columns are located in different rows and have different colors, and sub-pixel units in at least one row have different colors. Each sub-pixel unit is connected to one pixel circuit, and each sub-pixel unit comprises a first sub-pixel and a second sub-pixel located in the same column and having the same color. The pixel circuit is configured to drive the first sub-pixel when a first frame picture is displayed, and to drive the second sub-pixel when a second frame picture is displayed.
    Type: Application
    Filed: April 20, 2015
    Publication date: November 17, 2016
    Inventors: Chungchun LEE, Liye DUAN, Yanzhao LI, Chunwei WU, Hanjun PARK