O
Osamu Okumura
Researcher at Epson
Publications - 49
Citations - 1140
Osamu Okumura is an academic researcher from Epson. The author has contributed to research in topics: Liquid crystal & Liquid-crystal display. The author has an hindex of 16, co-authored 49 publications receiving 1140 citations.
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Patent
Liquid crystal device and electronic apparatus
TL;DR: In this paper, a multigap structure of a vertically aligned transflective liquid crystal display device is proposed, where each pixel can include, in a dot region, a plurality of islands, and connecting portions for electrically connecting the adjoining islands.
Patent
Reflective color LCD with color filters having particular transmissivity
TL;DR: A reflective type color liquid crystal device includes first and second substrates, each substrate has an opposing inner surface and each of the opposing inner surfaces has an electrode and forms a matrix-patterned dot group as discussed by the authors.
Patent
Single polarizer, reflective type liquid crystal display device with high brightness and contrast ratio
TL;DR: In this paper, a reflective type liquid crystal display device is achieved with enhanced brightness and contrast ratio utilizing only one polarizing plate or polarizer and a refelctor in combination with a liquid crystal cell.
Patent
Liquid crystal device and electronic device
TL;DR: In this paper, a back light guide plate (15b) passes through a polarizer (12) and a phase difference plate (14), enters a liquid crystal cell, passes through an opening of a reflecting electrode (7), enters the liquid crystal layer (3), passes through color filter (5), exits the liquid-crystal cell and passes through the polarizer and polarizer in order.
Patent
Liquid crystal display and electronic appliance
Tsuyoshi Maeda,Osamu Okumura +1 more
TL;DR: In this paper, a liquid crystal display that can provide a display with high contrast in both the transmissive mode display and the reflective mode display as a transflective liquid crystal displays, and an electronic appliance provided therewith.