SURFACE LIGHT SOURCE DEVICE AND DISPLAY DEVICE

To provide a large-sized surface light source device that is excellent in in-plane uniformity of luminance.SOLUTION: A surface light source device 20 includes: a base part 30 having multiple light sources 22; an illuminance distribution adjustment plate 60 disposed while being opposite to the base p...

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Bibliographische Detailangaben
Hauptverfasser:	TANIGUCHI YUKIO, NISHIKAWA MARIE, YOSHI NAONOBU
Format:	Patent
Sprache:	eng ; 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 FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	To provide a large-sized surface light source device that is excellent in in-plane uniformity of luminance.SOLUTION: A surface light source device 20 includes: a base part 30 having multiple light sources 22; an illuminance distribution adjustment plate 60 disposed while being opposite to the base part 30; and a spacer member 50 disposed between the base part 30 and the illuminance distribution adjustment plate 60. The spacer member 50 includes a bent part 55 which is bent or curved around straight lines Lx, Ly not parallel to a direction opposite to the base part 30 and the illuminance distribution adjustment plate 60.SELECTED DRAWING: Figure 2 【課題】輝度の面内均一性に優れた大型の面光源装置を提供する。【解決手段】面光源装置２０は、複数の光源２２を有するベース部３０と、ベース部３０に対向して配置された照度分布調整板６０と、ベース部３０と照度分布調整板６０との間に配置されたスペーサ部材５０と、を備える。スペーサ部材５０は、ベース部３０及び照度分布調整板６０が対向する方向に非平行な直線Ｌｘ、Ｌｙを軸として屈曲又は湾曲する曲部５５を有している。【選択図】図２