Patents by Inventor Hu Dou

Hu Dou 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: 12025816
    Abstract: The present invention provides a viewing angle diffuser film and a display panel, including a base substrate and refractive protrusions. By setting space ratios of adjacent refractive protrusions in a first direction and a second direction, refraction directions of the viewing angle diffuser film can be controlled, and therefore light diffusion effects can be controlled. In the display panel of the present invention, the space ratios of the refractive protrusions in different directions are adjusted according to different usage scenarios to improve display brightness and reduce color shifts.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: July 2, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hu Dou, Ziping Wu, Gang Yu
  • Publication number: 20240160053
    Abstract: Disclosed are a viewing angle adjustment film structure, a manufacturing method thereof, and a display device, including a base, an isotropic optical material layer, and a liquid crystal layer stacked in sequence. The isotropic optical material layer is provided with grooves, the liquid crystal layer fills the grooves, and light enters from the liquid crystal layer and then exits through the isotropic optical material layer. Director of liquid crystal molecules in the liquid crystal layer is changed according to an external applied voltage or a change of an electric field, so as to adjust a viewing angle of the light emitted from the isotropic optical material layer.
    Type: Application
    Filed: January 24, 2024
    Publication date: May 16, 2024
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hu DOU, Ziping WU, Gang YU
  • Publication number: 20240118461
    Abstract: A viewing angle diffusion film and a display panel are provided, including a substrate and a plurality of refractive protrusions. Through arranging two adjacent refractive protrusions in a staggered layout with changes periodically in each column of refractive protrusions, that is, initial positions of each column of refractive protrusions are not on a same straight line, a Moire effect can thereby be reduced, improving a quality of the display panel.
    Type: Application
    Filed: April 20, 2021
    Publication date: April 11, 2024
    Applicant: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventors: Hu DOU, Ziping WU, Gang YU
  • Patent number: 11914235
    Abstract: Disclosed are a viewing angle adjustment film structure, a manufacturing method thereof, and a display device, including a base, an isotropic optical material layer, and a liquid crystal layer stacked in sequence. The isotropic optical material layer is provided with grooves, the liquid crystal layer fills the grooves, and light enters from the liquid crystal layer and then exits through the isotropic optical material layer. Director of liquid crystal molecules in the liquid crystal layer is changed according to an external applied voltage or a change of an electric field, so as to adjust a viewing angle of the light emitted from the isotropic optical material layer.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: February 27, 2024
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hu Dou, Ziping Wu, Gang Yu
  • Publication number: 20240036239
    Abstract: An optical film and a display device are provided. The optical film includes: multiple optical structures, wherein one side of each optical structure away from a display surface is provided with multiple arced surfaces for reflecting at least a portion of environment light, and each optical structure has a first refractive index; and a filling part being filled between the optical structures and having a second refractive index greater than the first refractive index. Adjusting curvatures of the arced surfaces can implement the adjustment of the angle of reflection to the environment light.
    Type: Application
    Filed: November 11, 2021
    Publication date: February 1, 2024
    Inventors: Zhiyuan YIN, Lixuan CHEN, Hu DOU
  • Patent number: 11886068
    Abstract: A viewing angle diffusion film and a display panel are disclosed. The viewing angle diffusion film includes a substrate and a refractive protrusion disposed on a surface of the substrate. The refractive protrusion includes a first side surface away from a center of the substrate, and the first side surface includes a first curved surface.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: January 30, 2024
    Inventors: Hu Dou, Ziping Wu, Gang Yu
  • Publication number: 20230152613
    Abstract: Disclosed are a viewing angle adjustment film structure, a manufacturing method thereof, and a display device, including a base, an isotropic optical material layer, and a liquid crystal layer stacked in sequence. The isotropic optical material layer is provided with grooves, the liquid crystal layer fills the grooves, and light enters from the liquid crystal layer and then exits through the isotropic optical material layer. Director of liquid crystal molecules in the liquid crystal layer is changed according to an external applied voltage or a change of an electric field, so as to adjust a viewing angle of the light emitted from the isotropic optical material layer.
    Type: Application
    Filed: August 4, 2020
    Publication date: May 18, 2023
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hu Dou, Ziping Wu, Gang Yu
  • Publication number: 20230104693
    Abstract: A viewing angle diffusion film and a display panel are disclosed. The viewing angle diffusion film includes a substrate and a refractive protrusion disposed on a surface of the substrate. The refractive protrusion includes a first side surface away from a center of the substrate, and the first side surface includes a first curved surface.
    Type: Application
    Filed: August 3, 2020
    Publication date: April 6, 2023
    Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hu DOU, Ziping WU, Gang YU
  • Publication number: 20220357489
    Abstract: The present invention provides a viewing angle diffuser film and a display panel, including a base substrate and refractive protrusions. By setting space ratios of adjacent refractive protrusions in a first direction and a second direction, refraction directions of the viewing angle diffuser film can be controlled, and therefore light diffusion effects can be controlled. In the display panel of the present invention, the space ratios of the refractive protrusions in different directions are adjusted according to different usage scenarios to improve display brightness and reduce color shifts.
    Type: Application
    Filed: March 31, 2021
    Publication date: November 10, 2022
    Inventors: Hu DOU, Ziping WU, Gang YU
  • Patent number: 11442199
    Abstract: An optical film can be used in a display panel as a viewing angle diffusion film. The optical film includes a first electrode layer, an isotropic optical material layer, a liquid crystal material layer and a second electrode layer that are stacked. A plurality of groove structures are disposed on the isotropic optical material layer, and each of the groove structures is filled with the liquid crystal material layer.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: September 13, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hu Dou, Ziping Wu, Gang Yu
  • Publication number: 20220004224
    Abstract: The present application discloses the present application discloses a viewing angle diffusion plate and a display panel. The viewing angle diffusion plate includes a substrate and a plurality of refractive protrusions provided on a surface of the substrate, wherein each of the refractive protrusions includes a first portion and a second portion, the first portion includes a first side surface forming a first angle with the surface of the substrate, the second portion includes a second side surface disposed close to the first side surface and forming a second angle with the surface of the substrate.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 6, 2022
    Inventors: Hu DOU, Ziping WU, Gang YU
  • Publication number: 20210364671
    Abstract: An optical film can be used in a display panel as a viewing angle diffusion film. The optical film includes a first electrode layer, an isotropic optical material layer, a liquid crystal material layer and a second electrode layer that are stacked. A plurality of groove structures are disposed on the isotropic optical material layer, and each of the groove structures is filled with the liquid crystal material layer.
    Type: Application
    Filed: May 29, 2020
    Publication date: November 25, 2021
    Inventors: Hu DOU, Ziping WU, Gang YU
  • Patent number: 11112651
    Abstract: A liquid crystal display device provided by the present invention includes a backlight source, a light path modulation box and a liquid crystal display panel. The light path modulation box is disposed on the backlight source. The light path modulation box is configured to modulate light emitted out from the backlight source such that backlight is emitted out along a direction perpendicular to the light path modulation box. The liquid crystal display panel is disposed on the light path modulation box. The backlight emitted by the backlight source passes through the light path modulation box and enters the liquid crystal display panel.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: September 7, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xin Zhang, Hu Dou, Chunchi Chen