Patents by Inventor Takahara Hiroshi

Takahara Hiroshi 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).

  • Reflection light absorbing plate and display panel for use in a display apparatus
    Patent number: 5875013
    Abstract: The reflected light absorbing plate 23 is divided into plural areas by light absorbing walls 20, and is adapted to satisfy a pre-determined condition among the width of one area d, thickness thereof t and the refraction index of the absorbing plate n. The reflected light absorbing plate 23 is applied to the display panel 134 having a polymer dispersed liquid crystal layer as a light modulating layer 16 via a light coupling layer 14. The reflected light absorbing plate 23 and the light modulating layer 16 are spaced by a pre-determined distance taking MTF into consideration. While the light 17a diffused at a minute area A is reflected at the interface 21 with air, the light is absorbed by the light absorbing wall 20 and never returns to the light modulating layer 16.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: February 23, 1999
    Assignee: Matsushita Electric Industrial Co.,Ltd.
    Inventor: Takahara Hiroshi