Title:
OPTICAL LAMINATE, MANUFACTURING METHOD THEREOF, AND SMART WINDOW COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/163362
Kind Code:
A1
Abstract:
The present invention relates to a variable transmittance optical laminate, a manufacturing method thereof, and a smart window comprising same, the variable transmittance optical laminate comprising: a first laminate in which a first polarizing plate including a first functional coating layer, a first transparent conductive layer, and a first alignment layer are sequentially laminated; a second laminate which faces the first laminate and in which a second polarizing plate including a second functional coating layer, a second transparent conductive layer, and a second alignment layer are sequentially laminated; and a liquid crystal layer disposed between the first laminate and the second laminate, wherein the liquid crystal layer includes a ball spacer provided to form a depression part in at least one of the first alignment layer and the second alignment layer, the ball spacer has a diameter of 4 to 10 μm, at least one of the first transparent conductive layer and the second transparent conductive layer is formed in direct contact with one of the first polarizing plate and the second polarizing plate, the first functional coating layer and the second functional coating layer each have a Vickers hardness of 18 to 41, and the number (A) of ball spacers per unit area (1mm2) with respect to the diameter (d; μm) of the ball spacer satisfies a predetermined relationship.
Inventors:
AHN HONG-JUN (KR)
Application Number:
PCT/KR2023/000014
Publication Date:
August 31, 2023
Filing Date:
January 02, 2023
Export Citation:
Assignee:
DONGWOO FINE CHEM CO LTD (KR)
International Classes:
G02F1/1335; B32B7/023; B32B7/12; B32B15/00; B60J3/04; G02B5/20; G02B5/30; G02F1/1337; G02F1/1339; G06F1/16
Foreign References:
| KR20170072573A | 2017-06-27 | |||
| KR20170040099A | 2017-04-12 | |||
| KR20200051268A | 2020-05-13 | |||
| KR20170064744A | 2017-06-12 | |||
| US20080003380A1 | 2008-01-03 |
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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