The liquid crystal display device capable of reducing warp includes a liquid crystal display portion (6) and a backlight device (10) provided on a side opposite to a display surface of the liquid crystal display portion (6). The liquid crystal display portion (6) includes polarizing plates (1) and (2) and the backlight device (10) includes N (N≧1) optical members. When the N optical members are denoted by reference numerals 1, 2, . . . , and N in the stated order from a side on which the liquid crystal display portion (6) is provided, the optical member 1 is brought into intimate contact with the liquid crystal display portion (6) via an adhesive, and strain per unit length on the optical member 1 at least one of −10 to 10° C. and 40 to 70° C. is ⅕ or smaller of strain per unit length on the polarizing plates (1) and (2).