Patents by Inventor Ryoji Yayotani

Ryoji Yayotani 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).

  • DISPLAY DEVICE AND ACTIVE MATRIX SUBSTRATE
    Publication number: 20110221722
    Abstract: Provided is a display device equipped with a display panel having an optical sensor built in a pixel. The display device is equipped with the display panel having a photo sensor element (107) as the optical sensor in a pixel. The pixel includes: a first layer having the photo sensor element (107); a second layer having a first shield electrode (108); and a third layer having a pixel electrode (106). The second layer is formed between the first layer and the third layer. The first shield electrode (108) covers the photo sensor element (107) and is insulated from the pixel electrode (106). This configuration can reduce the effects of the electrical noise on the optical sensor and prevents lowering of the sensibility of the optical sensor. The present invention can be applied to a liquid crystal display panel having a built-in optical sensor touch panel and a liquid crystal display panel having a built-in optical sensor scanner function.
    Type: Application
    Filed: August 12, 2009
    Publication date: September 15, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Keisuke Yoshida, Kazuhiro Maeda, Ryoji Yayotani, Masahiro Fujiwara