Omron Corporation

Masaaki Hiramatsu

Yoshihiko Takagi

Junya Fujita

Jun Kishimoto

Masayuki Shinohara

Norikazu Kitamura

Yasuhiro Tanoue

Yoshimasa Osumi

Takeshi Kakinuma

Takamitsu Ishikawa

Norihisa Kanzaki

A light guide plate presents a plurality of patterns via prisms illuminated by light sources aligned along one sidewall of the light guide plate. Each light source corresponds to a different pattern. A storage unit stores lighting sequence information and a controller controls the turning on and off of the plurality of light sources in accordance with the lighting sequence information, thereby illuminating the patterns. Visible light emitted from the light sources to enters the light guide plate via an incidence surface. The prisms making up the patterns reflect only the visible light emitted from a light source corresponding to a particular pattern.

Display device and game machine

A display device has a liquid crystal panel that switches between a transparent state and an opaque state, a first light source, a light guide plate arranged on a back surface of the liquid crystal panel and made of a transparent material, the light guide plate having an incident surface facing the first light source and an outgoing surface facing the back surface of the liquid crystal panel, propagating light emitted from the first light source and incident through the incident surface, and outputting the light toward the liquid crystal panel from the outgoing surface, and a second light source configured to illuminate an object arranged on an opposite side to the liquid crystal panel with the light guide plate interposed therebetween.

Liquid crystal display device that switches between a transparent state and an opaque state comprising first and second light sources

Growing community of inventors

Ichinomiya, Japan

Masaaki Hiramatsu