BACK LIGHT APPARATUS AND LIQUID CRYSTAL DISPLAY

PROBLEM TO BE SOLVED: To provide a liquid crystal display whose luminance is improved by suppressing luminance unevenness in a direct type backlight apparatus wherein LEDs are mounted on a light guide plate. SOLUTION: In the backlight apparatus 10 which has light emitting diodes 21 as light sources...

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Bibliographische Detailangaben
1. Verfasser:	AOKI TOMIO
Format:	Patent
Sprache:	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 FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF 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 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:	PROBLEM TO BE SOLVED: To provide a liquid crystal display whose luminance is improved by suppressing luminance unevenness in a direct type backlight apparatus wherein LEDs are mounted on a light guide plate. SOLUTION: In the backlight apparatus 10 which has light emitting diodes 21 as light sources and wherein the light emitting diodes 21 are mounted on the light guide plate 30, recessed parts 31 on which the light emitting diodes 21 of the light guide plate 30 are mounted are so constituted that each edge part of the recessed part 31 on a bottom surface 30B side of the light guide plate 30 has a shape having an inclined or curved surface having an angle except an angle vertical to the bottom surface 30B. COPYRIGHT: (C)2006,JPO&NCIPI