Title:
OPTICAL COMPOSITE SHEET FOR BRIGHTNESS ENHANCEMENT
Document Type and Number:
WIPO Patent Application WO/2019/103455
Kind Code:
A1
Abstract:
An optical composite sheet according to the present invention comprises: a multilayer reflective polarizing film; and first and second uniaxially oriented polymer films laminated on the upper and lower surfaces of the multilayer reflective polarizing film, respectively, whereby creasing and warping of the sheet due to heat and the like can be prevented even in a high temperature and humidity environment. Further, the optical composite sheet comprises a diffusion layer having a plurality of beads and formed on the upper surface of the first polymer film, whereby rubbing effects due to the friction with other layers coming in contact with the surfaces thereof can be suppressed. Accordingly, the optical composite sheet can be applied to a large-sized liquid crystal display (LCD), an outdoor public information display (PID), or a narrow-bezel display.
Inventors:
CHO KYOO CHOONG (KR)
CHOE YONG JAE (KR)
KWON HYUNKYUNG (KR)
CHOE YONG JAE (KR)
KWON HYUNKYUNG (KR)
Application Number:
PCT/KR2018/014359
Publication Date:
May 31, 2019
Filing Date:
November 21, 2018
Export Citation:
Assignee:
SKC HI TECH & MARKETING CO LTD (KR)
International Classes:
G02B5/30; B32B27/08; B32B27/18; B32B27/36; G02F1/1335
Foreign References:
| KR20090024739A | 2009-03-09 | |||
| KR20070071346A | 2007-07-04 | |||
| KR20120078616A | 2012-07-10 | |||
| KR20090121518A | 2009-11-26 | |||
| US6673425B1 | 2004-01-06 |
Attorney, Agent or Firm:
FIRSTLAW P.C. (KR)
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