Flexible plastic substrate for optical display producing...

Details Flexible plastic substrate for optical display producing... Flexible plastic substrate for optical display producing...

2005-02-17

2008-11-11

Vargot, Mathieu D. (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Nonmechanical aftertreatment

C264S002700, C264S028000, C264S235000, C264S346000

Reexamination Certificate

active

07449135

ABSTRACT:
The present invention relates generally to a flexible plastic substrate, its manufacturing process and optical components for optical display applications. In so doing, cyclic olefin copolymer (COC) is placed between upper and lower heat-resistant sheets, then heated and pressurized by hot press to form a COC film. Next, the film is subjected to quenching treatment in ice water, and then heat treatment in vacuum drying oven after being placed between two flat plates. Finally, a COC plastic substrate with a high degree of optical penetration, low water permeability and low roughness is shaped, which can be efficiently applied to optical display thanks to its simple processing, lightweight, thin-profile and flexibility.

REFERENCES:
patent: 3632841 (1972-01-01), Fortin
patent: 5155207 (1992-10-01), Senatore et al.
patent: 6844403 (2005-01-01), Oshima et al.
patent: 6-306252 (1994-11-01), None

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