Patents by Inventor Chiaki SHIBUYA

Chiaki SHIBUYA 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: 11960080
    Abstract: Provided is a head-up display device capable of reducing the divergence angle of display light which has passed a cross point. A head-up display device comprises: a light source that emits light beams; a liquid crystal panel that emits display light beams upon reception of the light beams from the light source; a first mirror that reflects the display light beams from the liquid crystal panel and causes the reflected display light beams to cross at a cross point in a crossing direction; a second mirror that reflects the display light beams reflected on the first mirror and passed through the cross point; and a second lenticular lens that converges the light beams from the light source and causes the display light beams to reach the first mirror in the converged state.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: April 16, 2024
    Assignee: Nippon Seiki Co., Ltd.
    Inventors: Takaharu Iwaya, Chiaki Shibuya
  • Publication number: 20230367119
    Abstract: Provided is a head-up display device capable of reducing the divergence angle of display light which has passed a cross point. A head-up display device comprises: a light source that emits light beams; a liquid crystal panel that emits display light beams upon reception of the light beams from the light source; a first mirror that reflects the display light beams from the liquid crystal panel and causes the reflected display light beams to cross at a cross point in a crossing direction; a second mirror that reflects the display light beams reflected on the first mirror and passed through the cross point; and a second lenticular lens that converges the light beams from the light source and causes the display light beams to reach the first mirror in the converged state.
    Type: Application
    Filed: October 19, 2021
    Publication date: November 16, 2023
    Inventors: Takaharu IWAYA, Chiaki SHIBUYA
  • Patent number: 11487114
    Abstract: The purpose of the present invention is to provide a head-up display having enhanced evenness of display image luminance. This head-up display is provided with: a backlight unit having a light source, the backlight unit emitting illumination light; a liquid crystal display element for displaying an image, the image being irradiated by the illumination light, whereby the liquid crystal display element emits display light; a control means for controlling the illuminance of the backlight unit and display by the liquid crystal display element; a housing having an opening through which the display light passes, the housing housing the liquid crystal display element and the backlight unit; and a cover glass for reflecting and/or transmitting in at least one location in a display light path and projecting the reflected and/or transmitted display light.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: November 1, 2022
    Assignee: NIPPON SEIKI CO., LTD.
    Inventors: Yuki Watanabe, Takayuki Hatano, Akinori Koiida, Chiaki Shibuya, Yujiro Inoue
  • Publication number: 20210271078
    Abstract: The purpose of the present invention is to provide a head-up display having enhanced evenness of display image luminance. This head-up display is provided with: a backlight unit having a light source, the backlight unit emitting illumination light; a liquid crystal display element for displaying an image, the image being irradiated by the illumination light, whereby the liquid crystal display element emits display light; a control means for controlling the illuminance of the backlight unit and display by the liquid crystal display element; a housing having an opening through which the display light passes, the housing housing the liquid crystal display element and the backlight unit; and a cover glass for reflecting and/or transmitting in at least one location in a display light path and projecting the reflected and/or transmitted display light.
    Type: Application
    Filed: July 9, 2019
    Publication date: September 2, 2021
    Inventors: Yuki WATANABE, Takayuki HATANO, Akinori KOIIDA, Chiaki SHIBUYA, Yujiro INOUE