BACKLIGHT UNIT WITH ARRAYED LEDS

A backlight unit with arrayed LEDs(Light Emitting Diodes) is provided to add another matrix LED array alternately and diagonally between regular matrix LED arrays, thereby acquiring light with uniform brightness to a light guide panel or a light diffusion plate on the LED array. A backlight unit com...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	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 ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A backlight unit with arrayed LEDs(Light Emitting Diodes) is provided to add another matrix LED array alternately and diagonally between regular matrix LED arrays, thereby acquiring light with uniform brightness to a light guide panel or a light diffusion plate on the LED array. A backlight unit comprises the followings: a PCB(Printed Circuit Board) where second LEDs(Light Emitting Diodes) are alternately arranged to each other in a diagonal direction between first LEDs with a matrix form; and a light guide plate which faces the PCB. If an LED(23) matrix array of an empty circle is additionally arranged just under a light guide plate, of which the brightness is the minimum, brightness is increased in the lower side of the light guide plate on a perpendicular line at a midway point between LEDs adjacent to each other in a diagonal line due to a relative increase of brightness in the light guide plate on the perpendicular line of the LED.