| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reflective polarizer which has reduced absorption for transmission polarization, and uniformly operates over a wide wavelength range. <P>SOLUTION: An optical body is formed using cholesteric liquid crystal materials. At least two different coating compositions containing cholesteric liquid crystal material are coated on a substrate. At least a portion of each coating composition is allowed to interdiffuse so as to generate a change in pitch along a thickness dimension of the optical body. This optical body is used, for example, as a reflective polarizer in an optical display. <P>COPYRIGHT: (C)2010,JPO&INPIT |
