Patent ID: 9348176
Filing Date: 2016-05-24
CPC Classification: G02F

Claim Text:
1. A liquid crystal display device at least comprising: an anisotropic collimating backlight; a lower polarizing plate; a liquid crystal panel; an upper polarizing plate; and an anisotropic diffusion element, the anisotropic collimating backlight including a backlight unit and an anisotropic collimating element, the anisotropic collimating element including a first polarizer and a birefringent layer, the lower polarizing plate including a second polarizer and a first birefringent layer, the upper polarizing plate including a second birefringent layer and a third polarizer, the anisotropic diffusion element including a first diffusion layer and a second diffusion layer, the backlight unit, the first polarizer, the birefringent layer, the second polarizer, the first birefringent layer, the liquid crystal panel, the second birefringent layer, the third polarizer, the first diffusion layer, and the second diffusion layer being laminated in the stated order, the anisotropic collimating backlight having a greater average luminance in a direction along an absorption axis of the second polarizer and an absorption axis of the third polarizer than in a direction across the absorption axis of the second polarizer and the absorption axis of the third polarizer, and the anisotropic diffusion element having a smaller diffusion degree in a direction along the absorption axis of the second polarizer and the absorption axis of the third polarizer than in a direction across the absorption axis of the second polarizer and the absorption axis of the third polarizer.