Light guide plate, planar light source device, and transmissive image display device

A light guide plate (24) according to one embodiment is provided with: a light guide plate substrate (30) for allowing light entering from an edge surface (30c) to be propagated therein; and a plurality of light-scattering dots (32) for scattering a portion of the light propagated through the light...

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Bibliographische Detailangaben
1. Verfasser:	HYAKUTA KENTAROU
Format:	Patent
Sprache:	chi ; 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 HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED 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 (24) according to one embodiment is provided with: a light guide plate substrate (30) for allowing light entering from an edge surface (30c) to be propagated therein; and a plurality of light-scattering dots (32) for scattering a portion of the light propagated through the light guide plate substrate, the plurality of light-scattering dots (32) being formed on a main surface (30a) of the light guide plate substrate. The percentage of light-scattering dots in which P12 is (D1/2 + D2/2) or less is 10% or less of the total number of light-scattering dots present in the group of light-scattering dots, where, among two adjacent light-scattering dots in a group of light-scattering dots formed in a prescribed region (34a) of the main surface, a first light-scattering dot (321) has a maximum width of (D1), a second light-scattering dot (322) has a maximum width of (D2), and the distance between centers of the first and second light-scattering dots is (P12). The prescribed region is a region, among