POLARIZING PLATE FOR LIQUID CRYSTAL DISPLAY DEVICE
PURPOSE: To enhance adhesive properties and a durability, such as a resistance to heat and a resistance to moist heat, by bonding a polarizing film to protective films with a photosetting adhesive composed mainly of an ethylene-vinyl acetate copolymer. CONSTITUTION: A polarizing plate 4 is formed by...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
27.08.1996
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Summary: | PURPOSE: To enhance adhesive properties and a durability, such as a resistance to heat and a resistance to moist heat, by bonding a polarizing film to protective films with a photosetting adhesive composed mainly of an ethylene-vinyl acetate copolymer. CONSTITUTION: A polarizing plate 4 is formed by adhesively covering a polarizing film 1 with protective films 2 to be laminated on a liquid crystal cell surface substrate of a liquid crystal display device. As an adhesive 3 for bonding the polarizing film 1 to the protective films 2, a photosetting adhesive is used. The photosetting adhesive prepared by mixing 0.1-10 pts.wt. photosensitizer and 0.01-5 pts.wt. silane coupling agent per 100 pts.wt. of ethylene-vinyl acetate copolymer and kneading the mixture is formed into a predetermined shape for use by a film forming method, such as calendering, rolling, T-die extrusion, or inflation. A laminate is formed by overlapping the protective films 2 on the polarizing film 1 through adhesive films of the adhesive 3. The polarizing plate 4 is obtained by heating, pressurizing, and photosetting the laminate. |
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Bibliography: | Application Number: JP19950049178 |