OPTICAL PANEL FOR BACKLIGHT BY DISTRIBUTING DELICATE OPTICAL WAVEGUIDES

An optical panel for a backlight in which a fine optical waveguides is distributed is provided to remove a dark area occurring in an optical panel of a backlight unit, thereby providing uniform luminance or brightness of the backlight unit. In a PCB(Printed Circuit Board)(110), a plurality of LED(Li...

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Bibliographische Detailangaben
Hauptverfasser:	CHO, NAM IN, LYU, JONG SON
Format:	Patent
Sprache:	eng
Schlagworte:	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 NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	An optical panel for a backlight in which a fine optical waveguides is distributed is provided to remove a dark area occurring in an optical panel of a backlight unit, thereby providing uniform luminance or brightness of the backlight unit. In a PCB(Printed Circuit Board)(110), a plurality of LED(Light Emitting Diode)s(120) is arranged. A diffusing plate(130) is positioned on the plurality of LEDs. The diffusing plate comprises optical waveguides(132-136). The diffusing plate is located at the front side of a light source LED. The optical waveguides are concentrated on a part where a front end of the optical waveguide of a surface on which light of the LED is incident faces the LED. The optical waveguide are equally distributed on another end of the optical waveguide of a surface where light of the light source is emitted.