| 摘要 |
The invention relates to a method for manufacturing an optical anisotropic layer. The optical anisotropic layer comprises multiple optical anisotropic regions with different slow axis directions. The method comprises: 1) an optical alignment polymer layer forming step; 2) a first irradiating step, where a first polarized light is irradiated in a manner to satisfy the necessary conditions A and B; 3) a second irradiating step; 4) a coating step; 5) an alignment step; and 6) a polymerization step. The necessary conditions A and B are that the light absorptivity and the birefringence of an optical alignment polymer layer within regions where the first polarized light is to be irradiated and is already irradiated satisfy the formulas i and ii, respectively. The formula i is A(b)/A(a)<=0.95, wherein A(a) represents the light absorptivity when the wavelength is 314 nm after the polarized light is irradiated, and A(b) represents the light absorptivity when the wavelength is 314 nm before the polarized light is irradiated. The formula ii is [Delta]n(550)>=0.005, wherein the [Delta]n(550) represents the birefringence when the wavelength is 550 nm. |
