| 摘要 |
PURPOSE: To enhance the brightness of display, contrast ratio characteristics, visual angle dependency of them, and the angle dependency of a light source and a LCD by letting the surface of a reflection layer be formed up by the close disposition of the spherical crowns of spheres each diameter of which is specified, and making the radius and height of the bottom surface of each spherical crown smaller than the radius of each sphere. CONSTITUTION: The reflection layer (reflection plate) 18 of the reflection type LCD includes projected sections 18A1 in a spherical crown shape in the shape of its surface 18A, moreover, its bottom radius a of each spherical crown is smaller than the radius r of each sphere, and the height t of each spherical crown is smaller than the radius r of each spherical crown. In a plane view, a number of spherical crowns are closely disposed in a honycomb structure, that is, in a hexagonal close packed disposition 6, and they are so disposed in a plane view that the density of the spherical crowns becomes highest. Moreover, the surface 18A is formed of metals high in metallic brilliance. This constitution thereby allows an angle formed by light coming in while being pivoted on the normal line with respect to the contact surface of the surface 18A, and each axis to be equal to an angle formed by light going out while being reflected, and each axis when reflection from the surface is considered at one point in the surface. Namely, light is regularly reflected at respective points in each spherical crown. |
