Patents by Inventor RENYUAN ZHU

RENYUAN ZHU 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: 10685729
    Abstract: Disclosed are a shift register element, a method for driving the same, and a display panel. The method includes: an output module including a first node and a third node, wherein the output module is configured to provide an output terminal with a signal of a first signal terminal or a second signal terminal according to voltage applied to the first node and the third node; a first driver configured to control the voltage of the first node, and voltage of a second node according to signals of the first input terminal and the second input terminal; a second driver configured to control voltage of the third node according to the voltage of the first node and the second node; and a feedback regulation module configured to control voltage of the first node according to the signal of the output terminal, and signals of a third input terminal and a fourth input terminal.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: June 16, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Renyuan Zhu, Dongxu Xiang, Zhonglan Cai, Juan Zhu
  • Patent number: 10672340
    Abstract: The present disclosure discloses an OLED display panel, a method for driving the same and a display device. A high-potential voltage and a low-potential voltage are supplied to each shift register unit through a power supply, respectively. A voltage difference between a high-potential voltage and a low-potential voltage supplied to a first shift register unit by the power supply is a first voltage difference, and a voltage difference between a high-potential voltage and a low-potential voltage supplied to a second shift register unit by the power supply is a second voltage difference. The first voltage difference differs from the second voltage difference.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: June 2, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Dongxu Xiang, Renyuan Zhu, Yana Gao, Xingyao Zhou
  • Patent number: 10672345
    Abstract: The present disclosure discloses an organic light emitting display panel, a driving method thereof, and an organic light emitting display apparatus. The organic light emitting display panel includes a plurality of pixel driving circuits, the pixel driving circuit comprising: a driving module including a driving transistor and a first capacitor; an initialization module for writing signals of a first initialization signal terminal and a second initialization signal terminal respectively to a gate and a first electrode of the driving transistor; a data writing module; a light emitting control module including a first transistor, a gate, a first electrode and a second electrode of the first transistor respectively connecting to a light emitting signal terminal, a second electrode plate of the first capacitor and the gate of the driving transistor; an organic light emitting diode, a cathode of the organic light emitting diode connecting to a second voltage terminal.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: June 2, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Gang Liu
  • Patent number: 10672334
    Abstract: In an organic light-emitting display panel, a display area and a peripheral area surrounding the display area are provided on the base substrate, and the display area includes a display sub-area and a fingerprint recognition sub-area. A plurality of pixel driving circuits and a plurality of organic light-emitting components are arranged in the display area, and the organic light-emitting components are electrically connected to the pixel driving circuits in one-to-one correspondence. The first emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the display sub-area. The second emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the fingerprint recognition sub-area.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: June 2, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO. LTD.
    Inventors: Yue Li, Renyuan Zhu, Dongxu Xiang, Yana Gao, Xingyao Zhou
  • Patent number: 10657877
    Abstract: The present disclosure provides a driving circuit, a display device and a driving method. The driving circuit includes a shift register including: a first input unit for controlling a first node based on signals at first and second clock signal terminals, an input signal terminal, a second node and an output signal terminal; a second input unit for providing a signal at a first constant potential terminal to the second node under control of the first clock signal terminal and providing the signal at the input signal terminal or the first clock signal terminal to the second node under control of the first node; and an output unit for providing a signal at the second clock signal terminal to the output signal terminal under control of the first node and providing a signal at a second constant potential terminal to the output signal terminal under control of the second node.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: May 19, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou, Gaojun Huang, Yilin Xu, Zhonglan Cai, Juan Zhu
  • Patent number: 10627683
    Abstract: The disclosure discloses a display panel and a display device. The display panel includes a display region, and a non-display region adjacent to the display region. The display region includes a first display region and a second display region, the first display region includes first pixels arranged in an array, the second display region includes second pixels arranged in an array, and the number of pixels in any one row of the first pixels is less than the number of columns of the second pixels. The display panel further includes a gate driver circuit arranged in the non-display region and first signal lines, each of the first signal lines is connected with the gate driver circuit, and at least one of the first signal lines provides a row of first pixels with a control signal; a resistance compensation unit is disposed on at least one of the first signal lines.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: April 21, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Yue Li, Renyuan Zhu, Dongxu Xiang, Xingyao Zhou
  • Patent number: 10629121
    Abstract: An organic light-emitting pixel driving circuit, a driving method thereof, and an organic light-emitting display panel are provided. The organic light-emitting pixel driving circuit includes a light-emitting element, a driving transistor, a first and a second initialization modules, a threshold detection module, a data write-in module, and a storage module. The driving transistor is configured to drive the light-emitting element. The first initialization module is configured to transmit a signal carried by a reference voltage line to the driving transistor. The second initialization module is configured to transmit a signal carried by an initialization signal line to the light-emitting element. The threshold detection module is configured to detect a threshold voltage of the driving transistor. The data write-in module is configured to transmit a signal carried by a data line to the pixel driving circuit. The storage module is configured to store a signal written in by the data line.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: April 21, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Zeyuan Chen, Gang Liu, Yue Li
  • Patent number: 10580361
    Abstract: Provided are an organic light-emitting display panel and an organic display device, the organic light-emitting display panel includes: a display region and at least one peripheral circuit region; the peripheral circuit region is provided with shift registers cascaded in stages and clock signal lines of at least two different types, the number of clock signal lines in at least one of the different types is not less than 2, clock signals of one type of the clock signal lines are the same, clock signals of different types of the clock signal lines are different; the clock signal lines each is electrically connected to a clock signal input terminal of one of the shift registers, the shift registers each is configured to output a gate driving signal according to the clock signal in the clock signal line electrically connected to the input terminal of one of the shift registers.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 3, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou
  • Patent number: 10573220
    Abstract: Disclosed are a display panel and an electronic device. The display panel includes sub-pixels arranged in an array, wherein each pixel row of the sub-pixels comprises 3n sub-pixels, with every six adjacent sub-pixels of the pixel row forming a pixel group, n?2, and the six adjacent sub-pixels of the pixel group are arranged in sequential order in a first direction parallel to the row direction. The display panel further includes a controller, where in a first display mode the controller controls each of the sub-pixels to be charged to emit light; and in a second display mode the controller controls at most two sub-pixels of each of the pixel groups in at least one of the pixel rows to not emit light, and controls at most two sub-pixels of the pixel group which have same order in two adjacent frames of pictures to not emit light.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: February 25, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Zeyuan Chen, Yana Gao, Renyuan Zhu, Zhonglan Cai
  • Patent number: 10535414
    Abstract: A shift register element, a method for driving the same, and a display device are disclosed. The shift register element includes: an output module configured to provide an output terminal with a signal of a first signal terminal or a second signal terminal by voltage applied to a first node and a second node; a first driver configured to control voltage of the first node by the signal of the first input terminal; a second driver configured to control voltage of the second node by the signal of the first input terminal, and a signal of a third input terminal; a first feedback and adjustment module configured to control the voltage of the first node by the signals of the output terminal and the second input terminal; and a second feedback and adjustment module configured to control the voltage of the second node by the signal of the output terminal.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: January 14, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yue Li, Renyuan Zhu, Dongxu Xiang, Yana Gao, Zeyuan Chen
  • Patent number: 10535303
    Abstract: The present application discloses an organic light emitting display panel, a driving method thereof and an organic light emitting display apparatus. The organic light emitting display panel comprises: a pixel array, comprising pixel regions in M rows and N columns; a plurality of pixel driving circuits each comprising a light emitting diode and a driving transistor for driving the light emitting diode, the light emitting diode being arranged in one of the pixel regions; and a plurality of pixel compensation circuits, each configured to provide a compensated light emitting control signal for a gate of the driving transistor to correct brightness of the light emitting diode in one of the plurality of pixel driving circuits. According to the present disclosure, the final light emitting current may be unrelated to the threshold voltage of the driving transistor, the carrier mobility and aging of the light emitting diode.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: January 14, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Tong Wu, Dong Qian, Zeyuan Chen, Gang Liu
  • Publication number: 20200005706
    Abstract: The present disclosure provides an organic light-emitting display panel, a method for driving the display panel, and an organic light-emitting display device. In the organic light-emitting display panel, a display area and a peripheral area surrounding the display area are provided on the base substrate, and the display area includes a display sub-area and a fingerprint recognition sub-area. A plurality of pixel driving circuits and a plurality of organic light-emitting components are arranged in the display area, and the organic light-emitting components are electrically connected to the pixel driving circuits in one-to-one correspondence. The first emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the display sub-area. The second emission driving circuit is arranged in the peripheral area and electrically connected to pixel driving circuits arranged in the fingerprint recognition sub-area.
    Type: Application
    Filed: November 6, 2018
    Publication date: January 2, 2020
    Inventors: Yue LI, Renyuan ZHU, Dongxu XIANG, Yana GAO, Xingyao ZHOU
  • Patent number: 10522074
    Abstract: The present disclosure provides a shift register, a driving method of the shift register, an emission driving circuit, and a display device. The shift register includes a first node control module, a second node control module and an output control module. A first low level signal VGL1 provides low level at a first node, and a high level signal provides high level at a second node. The output control module includes a transistor for outputting low level, so that an output terminal outputs a third low level signal. The first low level signal VGL1, the third low level signal VGL3 and a threshold voltage Vth1 of the transistor in the output control module satisfy a relation of VGL3>VGL1+|Vth1|, such that in a phase following the output terminal outputting the high level signal, the output terminal completely outputs the third low level signal.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: December 31, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Renyuan Zhu, Dongxu Xiang, Yana Gao, Xingyao Zhou, Gaojun Huang, Yilin Xu, Zhonglan Cai, Juan Zhu
  • Patent number: 10490136
    Abstract: A pixel circuit and a display device are provided. The pixel circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a driving transistor, a first capacitor and a second capacitor. A threshold voltage of the driving transistor is compensated through a cooperation of the transistors and the capacitors in a source following manner, such that a driving current generated by the driving transistor for driving a light emitting element to emit light is independent from the threshold voltage of the driving transistor itself. In addition, the driving transistor and the anode of the light emitting element are reset through the cooperation of the transistors, thereby avoiding from grabbing a different threshold voltage after a gray scale transition, thus avoiding afterimages and insufficient brightness of the first frame after the gray scale transition.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 26, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou
  • Publication number: 20190347996
    Abstract: The present disclosure provides a shift register, a driving method thereof, a scan driving circuit and a display device. The shift register includes: a first node control module configured to control level at the first node based on an input signal and a second clock signal; a second node control module configured to control level at a second node based on the input signal, the first clock signal, the second clock signal, a low level signal and a high level signal; and an output control module configured to control the output terminal to output high level or low level based on level at the first node, level at the second node and the second clock signal. The second node can be provided with a relatively low level, which is conductive to maintaining a normal output of the shift register.
    Type: Application
    Filed: November 28, 2018
    Publication date: November 14, 2019
    Inventors: Renyuan ZHU, Yue LI, Dongxu XIANG, Yana GAO, Xingyao ZHOU
  • Patent number: 10467965
    Abstract: Disclosed are a pixel circuit and method for driving the same, an organic light emitting display panel and a display device. Prior to the data signal is written into the control electrode of the driving transistor, a unified common voltage signal is input to the first electrode of the driving transistor. The common voltage signal, along with a threshold voltage of the driving transistor, is written into the control electrode of the driving transistor. It can be ensured that each time the data signal is written to the control electrode of the driving transistor, voltages of the control electrode and the first electrode of the driving transistor can jump by a unified potential, so as to avoid the variation of the voltage change in the control electrode which came as a result of the parasitic capacitance between the control electrode and the first electrode of the driving transistor.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: November 5, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yue Li, Renyuan Zhu, Dongxu XiAng, Yana Gao, Zeyuan Chen, Zhonglan Cai
  • Patent number: 10467938
    Abstract: The present disclosure provides a driving circuit, a display device and a driving method, aiming to eliminate influence of potential of output terminal of shift register on potential of control node of the shift register and thus avoid an adverse effect on display. The scan driving circuit includes shift registers. Each shift register includes a first node control unit configured to switch on the input terminal and the first node; a second node control unit configured to switch on the second node and the first clock signal terminal and also to switch on the first power voltage terminal and the second node; a first output unit configured to switch on the second power voltage terminal and the output terminal; and a second output unit configured to switch on the second clock signal terminal and the output terminal. The third node is electrically connected to the first node.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: November 5, 2019
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Yana Gao, Xingyao Zhou, Zhonglan Cai, Juan Zhu, Yilin Xu, Gaojun Huang
  • Publication number: 20190332842
    Abstract: A display panel includes a base substrate, including a display region and a non-display region; a pixel array in the display region; and at least one fingerprint recognition unit, located on the base substrate in the non-display region. Each fingerprint recognition unit includes a fingerprint recognition sensor, including a first electrode layer, a P-type-semiconductor/insulator/N-type-semiconductor (PIN) layer, and a second electrode layer. The first electrode layer includes a transparent electrode material. The non-display region includes a step bending region, and a fingerprint recognition region located on the side of the step bending region away from the display region. The at least one fingerprint recognition unit is located in the fingerprint recognition region. The display panel is folded at the step bending region. The first electrode layer of each fingerprint recognition unit is located on the side surface of the PIN layer close to the light-emitting surface of the display panel.
    Type: Application
    Filed: October 22, 2018
    Publication date: October 31, 2019
    Inventors: Xingyao ZHOU, Yana GAO, Yue LI, Dongxu XIANG, Yuan LI, Renyuan ZHU
  • Publication number: 20190333433
    Abstract: Provided is a display panel and display device. A display area of a display panel includes a first area and a second area. The number of pixel units in each row in the first area is less than the number of pixel units in each row in the second area. The scanning lines electrically connected to the first shift registers are disposed in the first area, and the scanning lines electrically connected to the second shift registers are disposed in the second area. The first shift registers and the second shift registers are electrically connected to a first clock signal line, and the first shift registers are electrically connected to the first clock signal line through resistance compensation units.
    Type: Application
    Filed: February 1, 2019
    Publication date: October 31, 2019
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou
  • Publication number: 20190333596
    Abstract: The present disclosure provides a shift register. The shift register includes: a first node control module for controlling level at the first node; a second node control module for controlling level at a second node; and an output control module for controlling the output terminal to output high or low level. The first node control module includes an input unit configured to write the input signal into the third node and a protection unit configured to control a level at a fourth node based on a level at the third node and control writing of the level at the fourth node into the first node based on the second clock signal. The technical solution of the present disclosure can prevent the transistor for providing the third node with inputting signal from being broken down.
    Type: Application
    Filed: November 21, 2018
    Publication date: October 31, 2019
    Inventors: Renyuan ZHU, Yue LI, Dongxu XIANG, Yana GAO, Xingyao ZHOU, Gaojun HUANG, Yilin XU, Zhonglan CAI, Juan ZHU