Invention Grant
- Patent Title: Method for manufacturing polarizing plate
- Patent Title (中): 偏光板的制造方法
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Application No.: US14061263Application Date: 2013-10-23
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Publication No.: US09034138B2Publication Date: 2015-05-19
- Inventor: Mie Nakata , Tetsurou Takeda , Shunsuke Murayama , Tomohiro Yamashita
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Ibaraki-shi
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Ibaraki-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2012-236864 20121026
- Main IPC: B29C65/00
- IPC: B29C65/00 ; B32B1/00 ; G02B5/30 ; B29C65/48 ; B32B7/00 ; B32B37/00 ; B29C65/52 ; B29L11/00 ; B32B37/12 ; B29C65/14

Abstract:
A method for manufacturing a polarizing plate, the method comprising bonding a first transparent protective film and a second transparent protective film to both sides of a polarizer with an adhesive layer interposed between the polarizer and each of the first and second transparent protective films, wherein the first and second transparent protective films have different elasticities (elastic modulus×thickness (μm)), the three films are pressure-bonded by being simultaneously allowed to pass between a pair of rolls, a direction in which the polarizer is fed and allowed to pass between the pair of rolls is inclined toward the high-elasticity film. The polarizing plate obtained by the method can be suppressed the occurrence of bubbles between the polarizer and the transparent protective films.
Public/Granted literature
- US20140116618A1 METHOD FOR MANUFACTURING POLARIZING PLATE Public/Granted day:2014-05-01
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