Polarizer and manufacturing method thereof
A manufacturing method and polarizing plate technology, applied in chemical instruments and methods, polarizing elements, synthetic resin layered products, etc., can solve the problems of complicated and expensive protective film materials, etc.
Inactive Publication Date: 2011-06-15
BENQ MATERIALS +1
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Problems solved by technology
Therefore, the present invention provides a polarizing plate and its manufacturing method to solve the problem of expensive and complicated manufacturing process of conventional protective film materials
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Abstract
The invention relates to a polarizer and a manufacturing method thereof. Acrylic resin serves as a protective film of a polyvinyl alcohol polarizing film to be combined into the polarizer, wherein the acrylic resin has the glass transition temperature of higher than 50 DEG C. Because cheap acrylic resin is used for replacing the conventional expensive protective film material, namely cellulose triacetate and/or cycloolefine polymer; and by utilizing the hot melt adhesive property of the acrylic resin, the acrylic resin protective film and the polyvinyl alcohol polarizing film can be combined through hot pressing only, and the step of coating hydrogel between the acrylic resin protective film and the polyvinyl alcohol polarizing film can be saved. Therefore, due to the implementation mode, the manufacturing cost of the polarizer can be greatly saved, and the manufacture procedure of the polarizer can be simplified.
Description
Polarizing plate and manufacturing method thereof technical field The present invention relates to an optical element and its manufacturing method, and in particular to a polarizing plate and its manufacturing method. Background technique Outdoor large flat-panel displays are often used to provide passers-by or drivers with a lot of information. Among them, one of the key components of the LCD is the polarizer, which accounts for about 6%-18% of the material cost of the LCD. The material of the polarizing film in the polarizing plate structure is usually stretched polyethylene film (polyvinylalcohol; PVA). Since polyvinyl alcohol is soluble in water and the stretched film is easily affected by heat and moisture and shrinks. , so it is necessary to add a protective film on both sides to form the structure of the polarizer, so that the structure of the polarizer can withstand the outdoor sun and rain. Currently, the common material of the protective film of the polarizer...
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IPC IPC(8): B32B27/08G02B5/30B32B27/30
Inventor 蔡政欣张书怡李崇汉
Owner BENQ MATERIALS
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