| 摘要 |
PROBLEM TO BE SOLVED: To extend an angle of visibility of an electro-optical device optimum to an OCB mode in normally white mode display and a mode similar to the OCB mode. SOLUTION: When a liquid crystal cell 10 with a bend array is combined with an optically anisotropic element 30 as the device 1, the elliptical coefficient Z of a refractive index ellipsoid of the element 30 is expressed by Z=(ndx-ndz)/(ndx-ndy). In this case, the optically anisotropic element 30 capable of satisfying 7<=Z<=10 (The x, y and z direction components of the product of the thickness (d) of the element 30 and the refractive index (n) of the element 30 are defined as ndx, ndy and ndz. The ndx and ndy are the intra- face direction components of the element 30 and the ndz is the thickness direction component.) and compensating the visual angle characteristic of a liquid crystal layer 13 in the cell 10. |
