Title:
LIGHT GUIDE PANEL FOR A BACKLIGHT UNIT HAVING AN INTEGRATED OPTICAL SHEET, AND BACKLIGHT UNIT COMPRISING THE LIGHT GUIDE PANEL
Document Type and Number:
WIPO Patent Application WO/2011/102681
Kind Code:
A3
Abstract:
The present invention relates to a light guide panel, wherein it is an aim of the present invention to provide a light guide panel for a backlight unit having an integrated optical sheet, as well as a backlight unit comprising the light guide panel, in which an optical pattern formed on a rear surface of the light guide panel is prevented from being displayed on a front surface of an LCD. To accomplish the aim, the light guide panel of the present invention is arranged behind the integrated optical sheet, the rear surface of which has a light-condensing portion having a plurality of prism elements, and the front surface of which has an anisotropic diffusing portion having a plurality of diffusing elements, wherein a lower pattern is formed on the rear surface facing a reflecting panel so as to prevent the pattern on the rear surface of the light guide panel from being displayed on the front surface of the LCD, wherein the lower pattern has a plurality of embossed pattern elements arranged at a predetermined spacing to disperse light.
Inventors:
PARK JEONG-HO (KR)
SHIN DAE-SIK (KR)
NAM-GUNG MYOUNG (KR)
SHIN DAE-SIK (KR)
NAM-GUNG MYOUNG (KR)
Application Number:
PCT/KR2011/001104
Publication Date:
February 02, 2012
Filing Date:
February 19, 2011
Export Citation:
Assignee:
CHANG KANG CHEMICAL CO LTD (KR)
PARK JEONG-HO (KR)
SHIN DAE-SIK (KR)
NAM-GUNG MYOUNG (KR)
PARK JEONG-HO (KR)
SHIN DAE-SIK (KR)
NAM-GUNG MYOUNG (KR)
International Classes:
G02F1/1335
Foreign References:
| KR20010057219A | 2001-07-04 | |||
| KR20010074133A | 2001-08-04 | |||
| KR100841447B1 | 2008-06-26 |
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Claims: