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

A light guide plate (11) has: a light incidence surface (11c) through which light from a light source enters the light guide plate; a back surface (11b) for changing a direction of the light which has entered the light guide plate (11) through the light incidence surface (11c); and a light exit surf...

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Bibliographische Detailangaben
1. Verfasser:	ISHIZUMI TAKASHI
Format:	Patent
Sprache:	eng
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 FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A light guide plate (11) has: a light incidence surface (11c) through which light from a light source enters the light guide plate; a back surface (11b) for changing a direction of the light which has entered the light guide plate (11) through the light incidence surface (11c); and a light exit surface (11a). The back surface (11b) has a plurality of dot holes (12) each of which has an inclined surface for changing the direction of the light which has entered the light guide plate (11) through the light incidence surface (11a), and an angle theta between the inclined surface of each of the plurality of dot holes 12 and the back surface satisfies 53°@theta@56°.