LED BACKLIGHT DEVICE AND LED IMAGE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide an LED backlight device which is bendable and an LED display device including the same.SOLUTION: An LED backlight device includes: an LED mounting substrate including a plurality of LED elements 42 mounted on a flexible wiring board 41; a first optical sheet 50 arran...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUURA DAISUKE, YOSHI NAONOBU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY 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 SEMICONDUCTOR DEVICES 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:	PROBLEM TO BE SOLVED: To provide an LED backlight device which is bendable and an LED display device including the same.SOLUTION: An LED backlight device includes: an LED mounting substrate including a plurality of LED elements 42 mounted on a flexible wiring board 41; a first optical sheet 50 arranged so as to oppose to the plurality of LED elements; a second optical sheet 70 arranged on a light emission side of the first optical sheet; a first spacer 60 arranged between the flexible wiring board and the first optical sheet, constituted by first resin and for separating the first optical sheet with respect to the flexible wiring board; and a frame-like second spacer 80 arranged so as to surround an outer peripheral surface 50A of the first optical sheet and an outer peripheral surface 60A of the first spacer 60, constituted by second resin, and for separating the second optical sheet with respect to the first optical sheet. The Young's modulus of the second resin constituting the second spacer is smaller than the Young's modulus of the first resin constituting the first spacer.SELECTED DRAWING: Figure 3 【課題】曲げ可能なＬＥＤバックライト装置、およびこれを備えたＬＥＤ表示装置を提供する。【解決手段】フレキシブル配線基板４１に実装された複数のＬＥＤ素子４２とを備えるＬＥＤ実装基板と、複数のＬＥＤ素子と対向するように配置された第１の光学シート５０と、第１の光学シートの光出射側に配置された第２の光学シート７０と、フレキシブル配線基板と第１の光学シートとの間に配置され、第１の樹脂から構成され、かつフレキシブル配線基板に対し第１の光学シートを離間させる第１のスペーサ６０と、第１の光学シートの外周面５０Ａと第１のスペーサ６０の外周面６０Ａを取り囲むように配置され、第２の樹脂から構成され、かつ第１の光学シートに対し第２の光学シートを離間させる枠状の第２のスペーサ８０と、を備える。第２のスペーサを構成する第２の樹脂のヤング率が、第１のスペーサを構成する第１の樹脂のヤング率よりも小さい。【選択図】図３