Title:
ポリイミドフィルム、ポリイミドフィルムと無機基板の積層体、フレキシブル電子デバイス
Document Type and Number:
Japanese Patent JP7476698
Kind Code:
B2
Abstract:
To provide a polyimide film having high colorless transparency and high ultraviolet absorptivity, and a flexible electronic device using the same.SOLUTION: A polyimide is obtained by blending 625 ppm or more and 20,000 ppm or less of zinc oxide particles and/or 750 ppm or more and 20,000 ppm or less of zinc sulfide particles, and 680 ppm or more and 10,000 ppm or less of zirconium oxide particles and/or 1,000 ppm or more and 10,000 ppm or less of zirconium silicate particles, with a colorless polyimide resin.EFFECT: A total addition amount can be suppressed by energizing ultraviolet absorption capability of a zinc oxide with a light diffusion effect by a zirconium compound, and accordingly whitening of a film is suppressed, high transparency is maintained, and UV laser cutting properties are improved. A device having little ultraviolet degradation can be obtained by using the film as a member of a flexible electronic device.SELECTED DRAWING: None
Inventors:
Hideaki Wakui
Tetsuo Okuyama
Naoki Watanabe
Goji Maeda
Tetsuo Okuyama
Naoki Watanabe
Goji Maeda
Application Number:
JP2020121443A
Publication Date:
May 01, 2024
Filing Date:
July 15, 2020
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
C08J5/18; B32B27/18; B32B27/34
Domestic Patent References:
| JP2018103392A | ||||
| JP200951035A | ||||
| JP200893930A | ||||
| JP2018501390A | ||||
| JP2020055995A | ||||
| JP2019151719A | ||||
| JP2011245674A |
Foreign References:
| CN110643041A | ||||
| WO2019203037A1 | ||||
| WO2019116940A1 |