LIGHT DIFFUSION PLATE

To provide a light diffusion plate that is high in heat resistance, light resistance, and water resistance, exhibits excellent rigidity and display quality, and is used for an immediately below type backlight unit suitable for thinning, narrow a frame and increasing the size.SOLUTION: A light diffus...

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Bibliographische Detailangaben
1. Verfasser:	KUWABARA YUICHI
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 ELEMENTS, SYSTEMS, OR APPARATUS 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 light diffusion plate that is high in heat resistance, light resistance, and water resistance, exhibits excellent rigidity and display quality, and is used for an immediately below type backlight unit suitable for thinning, narrow a frame and increasing the size.SOLUTION: A light diffuse plate includes a glass plate 40 having a first main face and a second main face facing the first main face, and is provided with a light diffuse film 41 on at least one of the first main face and the second main face of the glass plate 40. The thermal expansion coefficient of the glass plate 40 is -100×10/°C or more and 500×10/°C or less. Incident light to the first main face is transmitted through the second main face while diffused.SELECTED DRAWING: Figure 2 【課題】耐熱性、耐光性および耐水性が高く、優れた剛性、表示品質を示す、薄板化、狭額縁化、大型化に適した直下型バックライトユニットに使用される光拡散板を提供する。【解決手段】第一の主面と該第一の主面に対向する第二の主面とを有するガラス板４０を含み、ガラス板４０の第一の主面と第二の主面の少なくとも一方に光散乱膜４１が設けられ、ガラス板４０の熱膨張係数が−１００Ｘ１０−７／℃以上５００Ｘ１０−７／℃以下であり、第一の主面への入射光を拡散させながら第二の主面から透過させる。【選択図】図２