Patents by Inventor Yana GAO

Yana 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).

  • Publication number: 20210209979
    Abstract: A display panel, a method for detecting the same, and a display device are provided. The display panel has a display area provided with data lines therein, and a non-display area provided with fan-out lines, a crack detection line, multiplexers, a first crack detection switch, and a crack detection control signal line therein. The crack detection line includes first and second detection sub-lines connected to each other. The first detection sub-line and the second detection sub-line are respectively connected to an input terminal of the first crack detection switch and a crack detection signal terminal. An output terminal of the demultiplexer is electrically connected to n data lines. An input terminal of the first demultiplexer is connected to an output terminal of the first crack detection switch and one fan-out line, and a control terminal of the first crack detection switch is connected to the crack detection control signal line.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 8, 2021
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yana Gao, Xingyao Zhou, Xinzhao Liu, Zhi Liu
  • Publication number: 20210201730
    Abstract: A display panel and a display device are provided. The display panel has a display area and a non-display area. The display panel includes pixels arranged in H columns and H*x data lines arranged in the display area and DEMUX circuits arranged in the non-display area. Each pixel includes x sub-pixels, and the data line is electrically connected to the sub-pixel. Each DEMUX circuit includes signal output terminals electrically connected to the data lines. The DEMUX circuits include M first DEMUX circuits and N second DEMUX circuits. Each first DEMUX circuit includes a first signal input terminal and al first signal output terminals. Each second DEMUX circuit includes a second signal input terminal and b1 second signal output terminals. H*x=M*a1+N*b1, where H, x, M, N, a1, and b1 are positive integers, M>N, a1>2, b1?2, a1>b1, and (M+N) is an even number.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 1, 2021
    Inventors: Yana Gao, Xingyao Zhou, Yue Li, Xinzhao Liu
  • Patent number: 11049458
    Abstract: Provided is a pixel driving circuit, a driving method and an organic light emitting display panel. The pixel driving circuit includes: a light emitting display module, including an OLED; a light emission driving module, including a first control terminal, a first input terminal and a first output terminal, the first output terminal being electrically connected to the light emitting display module; a connection control module, including a second input terminal and a second output terminal, the second output terminal being connected to the first control terminal of the light emission driving module; and a first initializing module, including a third input terminal and a third output terminal, the third input terminal being connected to a first reference voltage signal line and the third output terminal being connected to the second input terminal.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 29, 2021
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Longfei Fan, Xingyao Zhou, Yana Gao
  • Publication number: 20210165548
    Abstract: A driving method of a display panel, a display panel and a display device are provided. The display panel includes M driving signal wires, M pixel-rows, a first driving circuit and a second driving circuit, the first clock signal wire pair for controlling operation of the first driving circuit, and the second clock signal wire pair for controlling operation of the second driving circuit. In the driving method, clock signals with a regular period are respectively provided to the first clock signal wire pair and the second clock signal wire pair, in order to divide a display process of the display panel into multiple display phases and control the display panel to execute a touch phase between two adjacent display phases, to realize time division execution of display and touch.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: Mengmeng ZHANG, Xingyao ZHOU, Yana GAO, Yue LI
  • Publication number: 20210118406
    Abstract: The present disclosure provides an emission controller, a driving method thereof, and a display device. The emission controller includes a first processing module, a second processing module, a third processing module, an output module and a shift control module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module generates a second signal in response to the first control signal and the first signal. The third processing module generates third and fourth signals in response to the second control signal, the second and first signals. The output module provides emission control signal in response the first and fourth signal. The shift control module provides a shift control signal in response to the first and fourth signal, or provides a shift control signal in response to the first and third signal.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Yana GAO, Xingyao ZHOU, Yue LI, Dongxu XIANG, Renyuan ZHU, Zhonglan CAI, Juan ZHU, Gaojun HUANG, Yilin XU
  • Publication number: 20210118405
    Abstract: The present disclosure provides an emission controller, a driving method thereof, and a display device. The emission controller includes a first processing module, a second processing module, a third processing module, an output module and a shift control module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module generates a second signal in response to the first control signal and the first signal. The third processing module generates third and fourth signals in response to the second control signal, the second and first signals. The output module provides emission control signal in response the first and fourth signal. The shift control module provides a shift control signal in response to the first and fourth signal, or provides a shift control signal in response to the first and third signal.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Yana GAO, Xingyao ZHOU, Yue LI, Dongxu XIANG, Renyuan ZHU, Zhonglan CAI, Juan ZHU, Gaojun HUANG, Yilin XU
  • Patent number: 10964268
    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: Grant
    Filed: November 28, 2018
    Date of Patent: March 30, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Renyuan Zhu, Yue Li, Dongxu Xiang, Yana Gao, Xingyao Zhou
  • Patent number: 10936842
    Abstract: Provided are a display panel and a display device. The display panel includes a display assembly and a fingerprint recognition assembly. The display assembly includes a base substrate, a plurality of pixel units disposed on one side of the base substrate and a first scanning line extending along a first direction, each of the plurality of pixel units includes a pixel driving unit and a light-emitting unit disposed on one side of the pixel driving unit facing away from the base substrate, and the light-emitting unit includes a metal anode. The fingerprint recognition assembly is configured to perform fingerprint recognition according to light reflected by a touch object to a fingerprint recognition unit. A vertical projection of the first scanning line on the base substrate and a vertical projection of the metal anode on the base substrate have an overlapping area.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 2, 2021
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yana Gao, Xingyao Zhou, Yue Li, Dongxu Xiang, Xinzhao Liu
  • Patent number: 10910459
    Abstract: A display panel is provided having a transparent region, a display area surrounding the transparent region, and a non-display area surrounding the display area, and the display panel includes: at least one binding pin; at least one signal line only located within the display area and not located within the transparent region; at least one connection line located within the non-display region; and glass cement located within the non-display region. The signal lines include a first signal line and a second signal line, and the first signal line and the at least one binding pin are respectively located at two sides of the transparent region; the first signal line is electrically connected to the at least one connection line; and at least a part of the at least one connection line overlaps with the glass cement. The display panel is used for image display.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: February 2, 2021
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yujiao Liang, Mengmeng Zhang, Di Zhu, Tao Peng, Yue Li, Yana Gao, Xingyao Zhou
  • Patent number: 10909950
    Abstract: The present disclosure provides an emission controller, a driving method thereof, and a display device. The emission controller includes a first processing module, a second processing module, a third processing module, an output module and a shift control module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module generates a second signal in response to the first control signal and the first signal. The third processing module generates third and fourth signals in response to the second control signal, the second and first signals. The output module provides emission control signal in response the first and fourth signal. The shift control module provides a shift control signal in response to the first and fourth signal, or provides a shift control signal in response to the first and third signal.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 2, 2021
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Xingyao Zhou, Yue Li, Dongxu Xiang, Renyuan Zhu, Zhonglan Cai, Juan Zhu, Gaojun Huang, Yilin Xu
  • Publication number: 20200402458
    Abstract: Provided are a display panel, a driving method thereof and a display device. The display panel includes a substrate, multiple sub-pixels located on one side of the substrate, and at least one signal conversion circuit. Each sub-pixel includes a pixel driving circuit and a light-emitting element. The pixel driving circuit includes an initialization transistor and a driving transistor. A first electrode of the initialization transistor is electrically connected to a gate of the driving transistor. The signal conversion circuit may convert a received initialization signal to a first initialization signal or convert the initialization signal to a second initialization signal according to a received data control signal, and generate an output of the conversion to the second electrode of the initialization transistor. This can avoid an unstable gate voltage of the driving transistor caused by a leakage current, further improve the display effect.
    Type: Application
    Filed: September 3, 2020
    Publication date: December 24, 2020
    Inventors: Yana GAO, Xinzhao Liu, Yue LI, Xingyao Zhou, Minfu Zhang
  • Publication number: 20200388229
    Abstract: Provided is an output control device for providing control signals for a pixel circuit, which includes: a first output device configured to output a first control signal for controlling writing of a data signal into the pixel circuit, a second output device configured to output a second control signal for controlling a light emitting element to emit light, and a third output device configured to output a third control signal for controlling resetting of the light emitting element. A frequency of the third control signal is higher than a frequency of the first control signal. In a first period, the second control signal is an active level signal and the third control signal is an inactive level signal. In a second period, the second control signal is an inactive level signal and the third control signal is an active level signal.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 10, 2020
    Inventors: Mengmeng ZHANG, Yana GAO, Xingyao ZHOU
  • Patent number: 10854128
    Abstract: The present disclosure provides a display panel including: gate lines; data lines insulated from and intersecting with gate lines; pixel units; first and second clock signal lines; first and second power signal lines; gate driving units; and virtual driving units. Each gate driving unit has an output terminal electrically connected to gate lines, a first clock signal input terminal electrically connected to first clock signal line, and a second clock signal input terminal electrically connected to second clock signal line. Each virtual driving unit has an output terminal insulated from gate lines, a first clock signal input terminal insulated from first and second clock signal lines, and a second clock signal input terminal insulated from first and second clock signal lines. At least one virtual driving unit is disposed within the rounded angle region and located between two gate driving units.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: December 1, 2020
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Yana Gao, Xinzhao Liu, Yue Li, Xingyao Zhou, Kaihong Huang
  • Patent number: 10847237
    Abstract: The present disclosure provides a shift register, a driving circuit, a display device and a driving method for improving the accuracy of an output signal. The first input unit of the shift register is configured to provide a signal at a first fixed potential terminal to a first node, a signal at the input signal terminal to the first node and the signal at the input signal terminal to the first node. A second input unit of the shift register is configured to provide the signal at the input signal terminal to the second node and a signal at the first fixed potential terminal to the second node. An output unit of the shift register is configured to provide a signal at the first clock signal terminal to an output signal terminal of the shift register and a signal at a second fixed potential terminal to the output signal terminal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: November 24, 2020
    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
  • Patent number: 10803817
    Abstract: The present disclosure provides an emission control circuit including a first processing module, a second processing module, a third processing module and an output module. The first processing module generates a first signal in response to a first control signal, a second control signal and a second signal. The second processing module includes a first transistor having a control electrode electrically connected to the first node, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal, and a second transistor having a control electrode electrically connected to the first control signal terminal, a first electrode electrically connected to the second node and a second electrode electrically connected to the first control signal terminal. The third processing module generates a third signal and a fourth signal in response to the second control signal, the first signal and the second signal.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 13, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Xing Yao Zhou, Yue Li, Renyuan Zhu, Dongxu Xiang, Gaojun Huang, Yilin Xu, Zhonglan Cai, Juan Zhu
  • Patent number: 10769977
    Abstract: The present disclosure provides a shift register. The shift register includes: a first node control module configured to control level at a first node based on a first clock signal and a second clock signal; a second node control module configured to control level at a second node based on level at the first node, the first clock signal, the second clock signal, a first low level signal and a high level signal; an output control module configured to control an output terminal to output high or low level based on level at the first node, level at the second node, the high level signal and a second low level signal; and a carry control module configured to control a carry terminal to output high or low level based on level at the second node, level at the output terminal, the high level signal and the second low level signal.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: September 8, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Dongxu Xiang, Yue Li, Renyuan Zhu, Yana Gao, Xing Yao Zhou, Juan Zhu, Zhonglan Cai, Yilin Xu, Gaojun Huang
  • Patent number: 10762976
    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: Grant
    Filed: November 21, 2018
    Date of Patent: September 1, 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: 10748490
    Abstract: An organic light-emitting diode (OLED) compensation circuit, a display panel and a display apparatus are provided. The OLED compensation circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a storage capacitor and an OLED element. For the first transistor, a gate electrode is electrically connected to a first scanning signal line, a first electrode electrically connected to a data signal line, and a second electrode electrically connected to a first node. For the second transistor, a gate electrode is electrically connected to a first light-emitting control signal line, a first electrode electrically connected to a first voltage signal line, and a second electrode electrically connected to a second node. For the third transistor, a gate electrode is electrically connected to the first node, a first electrode electrically connected to the second node, and a second electrode electrically connected to a third node.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: August 18, 2020
    Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Haojie Xu, Xingyao Zhou, Yue Li, Yana Gao
  • Patent number: 10748476
    Abstract: The present disclosure provides a display panel, a method for driving the display panel, and a display device. The display panel includes a control unit including first and second processing circuits. A pixel circuit located within the fingerprint recognition region is connected to the first and second processing circuits of the corresponding control unit. In the fingerprint recognition mode, a pixel circuit located within the non-fingerprint recognition region receives a first light emission control signal, so that the light-emitting element does not emit light in first period and second sub-period and emits light in first sub-period. The second processing circuit provides a second light emission control signal, and a pixel circuit located within fingerprint recognition region responds to the second light emission control signal, so that the light-emitting element does not emit light in first period and emits light in first sub-period and second sub-period.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Zhe Zhao, Xingyao Zhou, Haojie Xu, Yana Gao, Yue Li
  • Patent number: 10726238
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes: a plurality of light-emitting devices; a plurality of fingerprint recognition sensors; a plurality of pixel driving circuits each corresponding to one of the plurality of light-emitting devices; and a light-emitting scan driving circuit for controlling whether or not the plurality of light-emitting devices emit light. The light-emitting scan driving circuit is used to output a first pulse signal to a corresponding pixel driving circuit during a fingerprint recognition time phase, and to output a second pulse signal to a corresponding pixel driving circuit during a non-fingerprint recognition time phase. A period of the first pulse signal is different from a period of the second pulse signal.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 28, 2020
    Assignee: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Yana Gao, Xingyao Zhou, Yuan Li