Patent ID: 7719647

Claim:
A liquid-crystal display apparatus comprising: a liquid-crystal layer in which absorption axes of a first substrate having a light-incoming-side polarizer and a second substrate having a second polarizer (smaller angle ranges between 88 and 90°) liquid-crystal molecules are oriented in parallel with the substrates and almost vertical to or in almost parallel with the absorption axis of the first polarizer (smaller angle ranges between 0 and 2°), and the liquid-crystal molecules rotate in a plane parallel with the first substrate by applying an electric field in a direction parallel with the first substrate; and a back lighting system in which a matrix-driven electrode group including a pair of electrodes is provided at rear side of liquid-crystal layer by facing each pixel to the side of either of the first substrate or the second substrate whichever is closer to the liquid crystal layer, wherein the absorption axis of the first polarizer and the optical axis of the liquid-crystal layer are almost vertical (smaller angle ranges between 88 and 90°), a support base material of the second polarizer at the liquid-crystal layer side has double refraction property (retardations in plane and thickness direction are 10 nm or more), the support base material of the second polarizer at the liquid-crystal layer side contacts with an optical member of film having double refraction property, and when laminating the support base material of the second polarizer at the liquid-crystal layer side and the optical member or film having the double refraction property, refraction factor is almost isotropic (retardations in plane and thickness direction are 10 nm or less).