| abstract |
A liquid crystal display device having high light transmittance and a high color reproduction range is provided. A liquid crystal cell, a backlight-side polarizer, an optical thin film that forms an air interface, and a backlight unit are provided in this order, satisfying formula (1), and formulas (2-1) to (2-1) A liquid crystal display device that emits blue light 32, green light 33, and red light 34 that satisfies any of 2-3) and has a backlight unit with a half-value width of 100 nm or less. n (535) is the refractive index of the optical thin film, nu (535) is the refractive index of the layer directly adjacent to the optical thin film, and d is the thickness of the optical thin film. Formula (1): n (535) <nu (535) Formula (2-1): 1.15 μm≰n (535)? D≰1.25 μm Formula (2-2): 1.42 μm≰n (535) ? d≰1.52µm formula (2-3): 1.69µm≰n (535)? d≰1.79μm |