Patents by Inventor Yaohu Liu

Yaohu Liu 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: 9478566
    Abstract: In an embodiments of the present invention, since two pixel electrodes are arranged in the pixel unit and each of the pixel electrodes is respectively controlled by a corresponding TFT, the rotation direction of the liquid crystal molecules may be controlled by the voltage difference between the two pixel electrodes, while the voltage on the pixel electrodes of other pixel units in the array substrate is not affected, so that the greenish phenomenon can be avoided. Furthermore, since the two TFTs for controlling the two pixel electrodes respectively may have same parasitic capacitor when the pixel unit is turned off, the voltage difference between the two pixel electrodes is kept unchanged, and thus the occurrence of the image flickering can be avoided.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 25, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yaohu Liu
  • Patent number: 9405159
    Abstract: The present disclosure provides a touch liquid crystal display device, a liquid crystal display panel, an array substrate and a color film substrate, and belongs to the field of liquid crystal display. The touch liquid crystal display panel includes an array substrate and a color film substrate, on said array substrate is formed a GOA circuit, and at the outer side of said color film substrate is formed a touch signal transmission line. The touch liquid crystal display panel further comprises a shielding electrode located between said GOA circuit and said touch signal transmission line, said shielding electrode being used for shielding the interference caused by the clock signal of said GOA circuit to the touch sensing signal on said touch signal transmission line. The present disclosure can reduce the interference caused by the clock signal of said GOA circuit to the touch sensing signal on said touch signal transmission line.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 2, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD
    Inventors: Yunsik Im, Teng Ye, Lijun Zhao, Yaohu Liu
  • Patent number: 9269455
    Abstract: A shift register unit, a gate driving circuit, an array substrate and a display apparatus are disclosed to reduce noises generated at an output of a next stage shift register unit caused by an output of a pervious stage shift register unit. The shift register unit at each stage comprises at least a signal inputting terminal INPUT, a signal outputting terminal OUTPUT and a capacitor CAP connected with the outputting terminal OUTPUT so as to provide an output signal to the outputting terminal OUTPUT, wherein the shift register unit further comprises a switch located between the capacitor CAP and the outputting terminal OUTPUT, and the switch is in a turned-off state when the capacitor CAP is charged.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: February 23, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yaohu Liu
  • Publication number: 20140119492
    Abstract: A shift register unit, a gate driving circuit, an array substrate and a display apparatus are disclosed to reduce noises generated at an output of a next stage shift register unit caused by an output of a pervious stage shift register unit. The shift register unit at each stage comprises at least a signal inputting terminal INPUT, a signal outputting terminal OUTPUT and a capacitor CAP connected with the outputting terminal OUTPUT so as to provide an output signal to the outputting terminal OUTPUT, wherein the shift register unit further comprises a switch located between the capacitor CAP and the outputting terminal OUTPUT, and the switch is in a turned-off state when the capacitor CAP is charged.
    Type: Application
    Filed: October 28, 2013
    Publication date: May 1, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yaohu LIU
  • Publication number: 20140119491
    Abstract: The embodiments of the present invention provide a shift register and a method for driving the same, a gate driving device and a display device. A charging unit, a pull-up unit, a pull-down unit, a gate signal input terminal, a DC low level signal input terminal, a gate signal output terminal and a first, a second, a third, a fourth clock signal input terminals are arranged in the shift register, so that the gate driving structure is simplified and the power consumption of the gate driving is reduced.
    Type: Application
    Filed: October 28, 2013
    Publication date: May 1, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yaohu Liu
  • Publication number: 20140111099
    Abstract: In an embodiments of the present invention, since two pixel electrodes are arranged in the pixel unit and each of the pixel electrodes is respectively controlled by a corresponding TFT, the rotation direction of the liquid crystal molecules may be controlled by the voltage difference between the two pixel electrodes, while the voltage on the pixel electrodes of other pixel units in the array substrate is not affected, so that the greenish phenomenon can be avoided. Furthermore, since the two TFTs for controlling the two pixel electrodes respectively may have same parasitic capacitor when the pixel unit is turned off, the voltage difference between the two pixel electrodes is kept unchanged, and thus the occurrence of the image flickering can be avoided.
    Type: Application
    Filed: October 22, 2013
    Publication date: April 24, 2014
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yaohu LIU
  • Publication number: 20140071355
    Abstract: The present disclosure provides a touch liquid crystal display device, a liquid crystal display panel, an array substrate and a color film substrate, and belongs to the field of liquid crystal display. The touch liquid crystal display panel includes an array substrate and a color film substrate, on said array substrate is formed a GOA circuit, and at the outer side of said color film substrate is formed a touch signal transmission line. The touch liquid crystal display panel further comprises a shielding electrode located between said GOA circuit and said touch signal transmission line, said shielding electrode being used for shielding the interference caused by the clock signal of said GOA circuit to the touch sensing signal on said touch signal transmission line. The present disclosure can reduce the interference caused by the clock signal of said GOA circuit to the touch sensing signal on said touch signal transmission line.
    Type: Application
    Filed: August 9, 2013
    Publication date: March 13, 2014
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Yunsik Im, Teng Ye, Lijun Zhao, Yaohu Liu