SURFACE LIGHT SOURCE DEVICE AND LCD UNIT

The disclosed subject matter includes providing a surface light source device using a plurality of different color light-emitting chips that can emit light with uniform color and a LCD unit having the same qualities. The surface light source device can include a light guide having a light incoming s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SONE NAOYA, ITO TAKAHIRO
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 LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS 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 TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	The disclosed subject matter includes providing a surface light source device using a plurality of different color light-emitting chips that can emit light with uniform color and a LCD unit having the same qualities. The surface light source device can include a light guide having a light incoming surface and a light-emitting surface, and light sources including the light-emitting chips located adjacent the light incoming surfaces. The light-emitting surface can include a light-mixing area that is spaced a distance L away from the light incoming surface, and the widest interval between the adjacent light-emitting chips is configured to be L/27 or less. Light emitted from the light sources can generate a mixture light with very little color variability in the light-mixing area, and the light can be emitted from the light-emitting surface other than the light-mixing area. Therefore, the LCD unit that includes a LCD located toward the light guide can illuminate the display with uniform color light.