Optical films with controlled surface morphology and the method of manufacturing the same

An optical film and manufacturing method technology, applied in optics, optical components, optical components, etc., can solve the problems of large coating speed, maximum limit, air merging, etc., to achieve the effect of improving productivity
CN102574342AInactive Publication Date: 2012-07-11SK INNOVATION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SK INNOVATION CO LTD
Publication Date
2012-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

Provided are an optical film for use in flat panel display (FPD) devices, and a method for manufacturing the same. Particularly, there is provided a method for imparting surface roughness to an optical film, which includes forming dented craters having a radius of curvature of 10 nm-100 [mu]m on the surface of an optical film obtained by a solution casting process and forming a plateau between one crater and another crater. There is also provided an optical film obtained by the same method.
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Description

technical field

[0001] The present invention relates to a method for producing an optical film having a controlled surface roughness, and an optical film having a controlled surface morphology obtained therefrom, the method comprising using moisture-containing air to dry an optical film formed by solution casting The film surface to form a surface morphology with craters and plateaus. Background technique

[0002] A flat panel display device such as a liquid crystal display device or an organic light emitting diode (OLED) uses a polarizing plate. To manufacture polarizing plates, polyvinyl alcohol (PVA) films are used in combination with optical protection films. As for an optical film on a surface for protecting and supporting a polarizing plate and for direct observation by a user, an antiglare coating, a low reflection coating, an antireflection coating, etc. are applied to provide an antiglare effect. Scratch-resistant clear coatings (hard clear coating) are also used ...

Claims

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