BACKLIGHT DEVICE AND TRANSMISSION LIQUID CRYSTAL DISPLAY DEVICE

The present invention is directed to a transmission type liquid crystal display apparatus using a backlight device for delivering rays of display light which have been emitted from a large number of light emitting diodes to a transmission type display panel, wherein an optical sheet block (10) is pr...

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Bibliographische Detailangaben
Hauptverfasser:	MAHAMA KAZUTOSHI, HATANAKA MASATO
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 HEATING LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	The present invention is directed to a transmission type liquid crystal display apparatus using a backlight device for delivering rays of display light which have been emitted from a large number of light emitting diodes to a transmission type display panel, wherein an optical sheet block (10) is provided between a liquid crystal panel (5) and a light source unit (7) including a large number of LEDs (12), the transmission type liquid crystal display apparatus comprising a light diffusion plate (15) consisting of resin, having light transmitting characteristic, which is adapted to control incidence of rays of display light which have been emitted from the respective LEDs (12). At the light diffusion plate (15), light adjustment patterns (18) facing the respective LEDs (12) and adapted to take a shape which has dimensions including outer shape thereof and is longitudinally elongated are formed by light reflection ink. Thus, realization of uniformity of rays of light which have been emitted from LEDs (12) is performed to realize image display of high luminance in which color unevenness and/or lateral stripe have been suppressed.