Patents by Inventor Kazuyoshi Hamanaka

Kazuyoshi Hamanaka 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).

  • Publication number: 20230305342
    Abstract: A display device includes: a plurality of first color filters not intersecting a non-linear portion with at least a part of an outer shape of a display region being non-linear, a plurality of second color filters at least part of which intersects the non-linear portion, a first region with the plurality of first color filters disposed, a second region with the plurality of second color filters disposed, a first light blocking portion partitioning the plurality of first color filters, a second light blocking portion partitioning the plurality of second color filters, and a spacer. An overlapping area of the second light blocking portion with respect to the plurality of second color filters is larger than that of the first light blocking portion with respect to the plurality of first color filters. A distribution density of the spacer in the second region is lower than that in the first region.
    Type: Application
    Filed: February 25, 2023
    Publication date: September 28, 2023
    Inventors: Masahiro DATE, Kazuhide AKITA, Eiji SHINOHARA, Shota NOZAKI, Tadashi OKAMOTO, Kazuyoshi HAMANAKA, Hiroto AKIYAMA
  • Publication number: 20150042695
    Abstract: In a display element (10), first and second sub-picture elements share a first signal line (S(i)) in common, third and fourth sub-picture elements share a second signal line (S(i+1)) in common, fifth and sixth sub-picture elements share a third signal line (S(i+2)) in common, the first, third, and fifth sub-picture elements are provided on one sides of the corresponding signal lines, and the second, fourth, and sixth sub-picture elements are provided on the other sides of the corresponding signal lines, and respective switching elements of two sub-picture elements displaying a primary color with the highest luminance out of the first through sixth sub-picture elements when the first through sixth sub-picture elements display an achromatic color are connected with one of a first scanning line (Ga(j)) and a second scanning line (Gb(j)).
    Type: Application
    Filed: March 21, 2013
    Publication date: February 12, 2015
    Inventors: Ryohki Itoh, Takaharu Yamada, Kazuyoshi Hamanaka