Title:
OPTICAL SHEET AND METHOD FOR MANUFACTURING OPTICAL SHEET
Document Type and Number:
WIPO Patent Application WO/2021/167259
Kind Code:
A1
Abstract:
Provided are an optical sheet and a method for manufacturing same. The optical sheet comprises: a first substrate; a first resin layer disposed on one surface of the first substrate; a second resin layer disposed on one side of the first resin layer; and a third resin layer disposed on one surface of the second resin layer, wherein: the first resin layer has a first one-surface corrugated portion formed on one surface thereof and including a plurality of convex portions and concave portions; the second resin layer has a second other-surface corrugated portion formed on the other surface thereof and having a pattern shape complementary to that of the first one-surface corrugated portion; the second resin layer has a second one-surface corrugated portion formed on one surface thereof, including a plurality of convex portions and concave portions, and having a surface roughness value greater than that of the first one-surface corrugated portion; and the third resin layer has a third other-surface corrugated portion formed on the other surface thereof and having a pattern shape complementary to that of the second one-surface corrugated portion.
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Inventors:
KIM HAK TAE (KR)
AHN CHEOL HEUNG (KR)
KIM DO HYOUNG (KR)
KANG SEOK MIN (KR)
SON KA YOUNG (KR)
KIM MIN TAE (KR)
HAN CHANG MIN (KR)
AHN CHEOL HEUNG (KR)
KIM DO HYOUNG (KR)
KANG SEOK MIN (KR)
SON KA YOUNG (KR)
KIM MIN TAE (KR)
HAN CHANG MIN (KR)
Application Number:
PCT/KR2021/001080
Publication Date:
August 26, 2021
Filing Date:
January 27, 2021
Export Citation:
Assignee:
SHINWHA INTERTEK CORP (KR)
International Classes:
G02B5/30; B29D11/00; G02B1/14
Foreign References:
| JP2010230714A | 2010-10-14 | |||
| JP5015960B2 | 2012-09-05 | |||
| KR20180001239A | 2018-01-04 | |||
| KR20110065610A | 2011-06-16 | |||
| KR20090012822A | 2009-02-04 |
Attorney, Agent or Firm:
KASAN IP & LAW FIRM (KR)
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