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Ikuo Hiyama
Researcher at Hitachi
Publications - 116
Citations - 2169
Ikuo Hiyama is an academic researcher from Hitachi. The author has contributed to research in topics: Liquid-crystal display & Liquid crystal. The author has an hindex of 24, co-authored 116 publications receiving 2161 citations. Previous affiliations of Ikuo Hiyama include Panasonic.
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Patent
Plane-like lighting units and display equipment provided therewith
TL;DR: A light unit which includes a plurality of light-emitting diode (LED) light sources arranged in parallel, a light-guiding member arranged on said LED light sources, and an optical path changing part arranged above said light-diffusion part is shown in this article.
Patent
Lighting unit, image display device having the same, and image display method
Masaya Adachi,Ikuo Hiyama,Tatsuki Inuzuka,Daisuke Kajita,Katsumi Kondo,Tetsutoyo Konno,Yuka Utsumi,Tsunenori Yamamoto,夕香 内海,恒典 山本,郁夫 桧山,大介 梶田,達基 犬塚,哲豊 紺野,昌哉 足立,克己 近藤 +15 more
TL;DR: In this paper, the authors proposed a solution to expand the display luminance range of an image display device to an ideal range and to secure image quality by using a back light control.
Patent
Liquid Crystal Display Apparatus
TL;DR: In this paper, a control unit controls each light-adjustment unit in synchronization with horizontal synchronization signals and vertical synchronization signals, so that the adjusted light quantity of individual ones of the plural regions of the divided lighting device is shifted among the plurality regions and an individual illumination region of the plurality illumination regions of a display area of the liquid crystal display unit is correspondingly shifted therewith.
Patent
Color/black-and-white switchable portable terminal and display unit
TL;DR: In this paper, a display unit has a brightness equal to that in a conventional black-and-white reflection type and the power consumption is small at a standby time, and bright color display of high quality can be produced and power consumption was small at the time of use.
Patent
Liquid crystal display device having particular reflective polarizer
TL;DR: In this paper, the major axis direction of a pixel is arranged approximately in parallel with a direction wherein the linearly polarized light component of the projected light projected from said illumination device is high.