ILLUMINATOR FOR REFLECTIVE DISPLAY

Japanese Patent JP2015207564

A

PROBLEM TO BE SOLVED: To provide an illuminator or the like for a reflective display capable of substantially uniformly illuminating a display in a low ambient light environment.SOLUTION: The illuminator for a reflective display incorporates a light guide having substantially transparent front and rear planar surfaces. The planar surfaces overlap a viewing surface of the display when the surfaces are substantially parallel and adjacent to the viewing surface. A light source emits light into the light guide. A plurality of light redirecting structures are distributed on the rear surface of the light guide. The light redirecting structures are shaped to redirect, through the light guide toward the viewing surface, light rays encountering the structures. Most of the light rays emitted into the light guide by the light source and not encountering any of the structures are confined within the light guide by total internal reflection. Most of the light rays emitted into the light guide by the light source and encountering any of the structures are redirected through the light guide toward the viewing surface, and substantially uniformly illuminate the display in a low ambient light environment.

JPS5841510	【考案の名称】「けい」光ランプ装置
JP6575201	Irradiation unit and light irradiation device
JP2012243526	LIGHT GUIDE PLATE, BACKLIGHT UNIT, AND IMAGE DISPLAY DEVICE

ROBIN ATKINS

JP2015132333A

November 19, 2015

July 01, 2015

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DOLBY LAB LICENSING CORP

F21S2/00; F21V8/00; F21V23/00; G02F1/13357; H05B37/02

JPH117012A	1999-01-12
JP2003331608A	2003-11-21
JP2004311239A	2004-11-04
JP2010039248A	2010-02-18
JP2009224030A	2009-10-01
JP2002062437A	2002-02-28
JPH11167111A	1999-06-22
JP2007265984A	2007-10-11
JPH11260572A	1999-09-24

Tadashige Ito
Tadahiko Ito
Shinsuke Onuki

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