Title:
POLYETHYLENE TEREPHTHALATE–BASED RESIN FILM, AND POLARIZING PLATE, TRANSPARENT CONDUCTIVE FILM, TOUCH PANEL, AND IMAGE DISPLAY DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2022/085623
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a polyethylene terephthalate–based resin film that excels in processing suitability, and in particular, that can effectively inhibit the occurrence of in–film layer cleavage of a portion cut with a blade. Moreover, the purpose of the present invention is to provide a polarizing plate, a transparent conductive film, a touch panel, and an image display device such as a liquid crystal display device or an organic EL display device using the polyethylene terephthalate–based resin film. The polyethylene terephthalate–based resin film satisfies (1) and (2). (1) The polyethylene terephthalate–based resin film has a retardation of 3000-30000 nm; (2) an amorphous orientation parameter of the polyethylene terephthalate–based resin film measured via an ATR-FTIR method is not less than 0.330.
Inventors:
ABE TAKAHISA (JP)
IKEDA YUKA (JP)
SAWADA KAORU (JP)
IKEDA YUKA (JP)
SAWADA KAORU (JP)
Application Number:
PCT/JP2021/038409
Publication Date:
April 28, 2022
Filing Date:
October 18, 2021
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
G02B5/30; G02F1/1335; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
| WO2020196306A1 | 2020-10-01 | |||
| WO2019054406A1 | 2019-03-21 |
Foreign References:
| JP2020052335A | 2020-04-02 | |||
| JPS567927B2 | 1981-02-20 | |||
| JPS589232B2 | 1983-02-19 | |||
| JPS589233B2 | 1983-02-19 | |||
| JP3900191B2 | 2007-04-04 | |||
| JP4150982B2 | 2008-09-17 |
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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