LIGHT GUIDE PLATE, ILLUMINATION DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE

A light guide plate (11) has a light incidence surface (11c), a back surface (11b) for changing the direction of travel of the light incident from the light incidence surface (11c), and a light emission surface (11a). A plurality of dot hole parts (12) is formed on the back surface (11b), the dot ho...

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Bibliographische Detailangaben
1. Verfasser:	ISHIZUMI, TAKASHI
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	A light guide plate (11) has a light incidence surface (11c), a back surface (11b) for changing the direction of travel of the light incident from the light incidence surface (11c), and a light emission surface (11a). A plurality of dot hole parts (12) is formed on the back surface (11b), the dot hole parts (12) having inclined surfaces for changing the direction of travel of the light incident from the light incidence surface (11a). The angle (?) formed by the back surface and the inclined surfaces of the dot hole parts (12) is 53° = ? = 56°. La présente invention concerne une plaque guide de lumière (11) présentant une surface d'incidence de la lumière (11c), une surface arrière (11b) destinée à modifier la direction de déplacement de la lumière ayant frappé la surface d'incidence de la lumière (11c), et une surface d'émission de lumière (11a). Une pluralité de parties trous pointillés (12) est formée sur la surface arrière (11b), les parties trous pointillés (12) présentant des surfaces inclinées permettant de modifier la direction de déplacement de la lumière ayant frappé la surface d'incidence de la lumière (11a). L'angle (?) formé par la surface arrière et les surfaces inclinées des parties trous pointillés (12) est tel que 53° = ? = 56°.