Patent ID: 7732007
Filing Date: 2010-06-08
Classification: B29D,G02B

Abstract:
1. A method of making a polarizing plate comprising a. passing a polarizing film between a first coating apparatus and a second coating apparatus, the first coating apparatus and the second coating apparatus being opposingly located adjacent to corresponding first and second sides of the polarizing film, b. combining a plurality of coating liquids in at least one of the first and second coating apparatus; c. simultaneously coating the plurality of coating liquids as a layered optical film solution from at least one of the first and second coating apparatus directly onto the corresponding side of the polarizing film, d. concurrently coating an opposing side of the polarizing film with one of the layered optical film solution and a second optical film solution, whereby the optical film solutions from the first coating apparatus and the second coating apparatus are directly deposited onto opposing regions of the corresponding first and second sides of the polarizing film; and, e. drying or curing the optical film coating solution on each side of the polarizing film to form an optical film or optical film stack.