Light guide plate, surface light source device, and transmission image display device

A light guide plate according to an embodiment of the present invention is one in which light scattering dots are formed on at least one surface 12c of a light guide substrate 12. A plurality of light scattering dots 24 are formed in each of individual areas A1-A10 resulting from division of the at...

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Bibliographische Detailangaben
Hauptverfasser:	SEKIGUCHI YASUHIRO, HYAKUTA KENTAROU, KADOYA SYUUJI, TERANISHI NORIHISA
Format:	Patent
Sprache:	eng
Schlagworte:	ADVERTISING BLASTING CRYPTOGRAPHY 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 DISPLAY DISPLAYING EDUCATION FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LABELS OR NAME-PLATES LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS SIGNS 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 according to an embodiment of the present invention is one in which light scattering dots are formed on at least one surface 12c of a light guide substrate 12. A plurality of light scattering dots 24 are formed in each of individual areas A1-A10 resulting from division of the at least one surface 12c of the light guide substrate 12 into a plurality of areas. In each of individual areas A1-A5 where a contrast ratio by the light scattering dots 24 is not more than 50%, the light scattering dots 24 include light scattering dots 24a, 24b of two or more sizes and the light scattering dots 24a, 24b of two or more sizes are arranged in an irregular order.