Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified... – With substrate layer of specified composition
Reexamination Certificate
2005-07-29
2008-03-11
Dye, Rena (Department: 1772)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
With substrate layer of specified composition
C428S001510, C428S001520, C428S446000, C428S447000, C349S122000, C349S158000, C525S100000
Reexamination Certificate
active
07341766
ABSTRACT:
There is provided a gas barrier clear film10as a polymer substrate that is flexible, is light, is free from cracking, can be bent, has a high level of heat resistance, is excellent particularly in gas shielding properties, and can be used as an alternative to glass substrates.The gas barrier clear film comprises: a clear resin base material film11having a coefficient of linear expansion of 15 to 100 ppm/K and a glass transition temperature Tg of 150 to 300° C.; and a first clear inorganic compound layer13A, a sol-gel coat layer15A, and a second clear inorganic compound layer13B provided in that order on the clear resin base material film11. The second clear inorganic compound layer13B has an Ra (average roughness) value of not more than 5 nm and an Rmax (maximum roughness) value of not more than 80 nm.
REFERENCES:
patent: 6171663 (2001-01-01), Hanada et al.
patent: 6866949 (2005-03-01), Ota et al.
patent: 7229703 (2007-06-01), Kawashima et al.
patent: 2005/0175831 (2005-08-01), Kim et al.
Kishimoto Yoshihiro
Komada Minoru
Burr & Brown
Dai Nippon Printing Co. Ltd.
Dye Rena
Hon Sow-Fun
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