ILLUMINATION DEVICE, DISPLAY DEVICE, AND ELECTRONIC EQUIPMENT

PROBLEM TO BE SOLVED: To provide an illumination device that reduces steep luminance variation in a boundary part between adjacent divided areas without increasing a load on a drive system, and to provide a display device using the same and electronic equipment. SOLUTION: Since each center of a lens...

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Bibliographische Detailangaben
Hauptverfasser:	NADA NAOJI, YOKOMIZO KANJI
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 an illumination device that reduces steep luminance variation in a boundary part between adjacent divided areas without increasing a load on a drive system, and to provide a display device using the same and electronic equipment. SOLUTION: Since each center of a lens 52b is provided so as to be deviated outward more than each light source 51b with respect to a central point 11 of an unit region 15, light distribution of each light source 51 is deviated to the outside of the unit region 15. Accordingly, the luminous flux by the entire light source unit 5b is widened outside of the unit region 15. The luminous flux by the entire widened light source unit 5b is superposed on the luminous flux by the entire light source unit 5b in the unit region 15 adjacent to the unit regions 15 involved in a backlight 2. As a result, the steep luminance variation in the boundary part between the unit region 15 and the unit regions 15 adjacent thereto can be reduced without increasing the load on the drive system. COPYRIGHT: (C)2010,JPO&INPIT