BACK LIGHT UNIT WITHIN RESIN LAYER FOR LIGHT-GUIDE AND LCD USING THE SAME

Title:

BACK LIGHT UNIT WITHIN RESIN LAYER FOR LIGHT-GUIDE AND LCD USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2013/035909

Kind Code:

A1

Abstract:

Provided is a back-light unit including a plurality of LED light sources formed on a PCB, a resin layer stacked on the PCB to diffuse and guide emitted light forwards, and a diffusion plate having an optical pattern printed thereon to shield light emitted from the LED light sources. The optical pattern is composed of a diffusion pattern implemented as at least one layer, or a combination of the diffusion pattern layer and a light shielding pattern. The back-light unit forms an optical pattern for shielding or diffusing light on a surface of a light diffusion plate of the back-light unit, and combines a diffusion pattern and a metal pattern to attain uniformity of light and realize a yellow-light shielding effect, thus leading to a reliable light quality.

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Inventors:

PARK KWANG HO (KR)
CHANG WOO YOUNG (KR)
KIM CHUL HONG (KR)
LEE BYOUNG EON (KR)

Application Number:

PCT/KR2011/006739

Publication Date:

March 14, 2013

Filing Date:

September 09, 2011

Export Citation:

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Assignee:

LG INNOTEK CO LTD (KR)
PARK KWANG HO (KR)
CHANG WOO YOUNG (KR)
KIM CHUL HONG (KR)
LEE BYOUNG EON (KR)

International Classes:

G02F1/13357

Foreign References:

KR20110068833A	2011-06-22
KR20110104398A	2011-09-22
KR20110104401A	2011-09-22
JP2007141546A	2007-06-07
JP2008053069A	2008-03-06
US20110205758A1	2011-08-25

Other References: