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Title:
OPTICAL STACK STRUCTURE, MANUFACTURING METHOD THEREFOR, AND SMART WINDOW COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/163364
Kind Code:
A1
Abstract:
The present invention relates to a variable transmittance optical stack structure, a manufacturing method therefor, and a smart window comprising same, the variable transmittance optical stack structure comprising: a first stack structure in which a first polarization plate including a first functional coating layer, a first transparent conductive layer, and a first alignment layer are sequentially stacked; a second stack structure in which a second polarization plate including a second functional coating layer, a second transparent conductive layer, and a second alignment layer are sequentially stacked; and a liquid crystal layer, wherein the liquid crystal layer includes ball spacers having a diameter of 4 to 10 μm and provided via an adhesion-imparting layer formed on any one alignment layer, and at least one transparent conductive layer is formed in direct contact with any one polarization plate, and the first and second functional coating layers each have a Vickers hardness of 18 to 41, and the number of ball spacers per unit area with respect to the diameter of the ball spacers satisfies a predetermined relationship.

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Inventors:
AHN HONG-JUN (KR)
KWAK DONG-HYUK (KR)
OH PYOUNG-YUN (KR)
Application Number:
PCT/KR2023/000016
Publication Date:
August 31, 2023
Filing Date:
January 02, 2023
Export Citation:
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Assignee:
DONGWOO FINE CHEM CO LTD (KR)
International Classes:
B32B7/023; G02F1/1335; B32B7/12; B32B15/00; B60J3/04; G02B5/20; G02B5/30; G02F1/1337; G02F1/1339; G06F1/16
Foreign References:
KR20170064744A2017-06-12
KR20170040099A2017-04-12
KR20200051268A2020-05-13
KR20170072573A2017-06-27
JP2009186814A2009-08-20
Attorney, Agent or Firm:
HANYANG PATENT FIRM (KR)
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