Industrial Technology Research Institute

Kun-Tsung Lu

Shih-Ming Chen

Chih-Kuang Chen

Li-Ching Wang

Jia-Chih Huang

The invention provides a method for forming optical compensating films, including: (a) providing a suspension containing clay; (b) adding a mono-functional acrylic oligomer of formula (I) in the suspension, wherein nis 2-25, Ris Calkyl or H and Ris H or CH; (c) adding a water-soluble polymer in the suspension; (d) adding a bi-functional acrylic oligomer of formula (II) in the suspension, wherein nis 3-50, and Rand Rindependently are H or CH; (e) after the step (d), drying the suspension to form a film; (f) exposing the film under UV light to cure the film; and (g) stretching the film, wherein the film has only a negative C-plate property before the stretching and has both negative C-plate and positive A-plate properties after the stretching.

Method for forming optical compensating films, optical compensating films formed thereby, structure of optical compensating films, and polarizing plates

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Bade, Taiwan

Kun-Tsung Lu