Patent ID: 9733512
Date: 2017-08-15
CPC Classifications: G02B,G02F

Claim:
1. A liquid crystal display device comprising: a backlight unit, a light conversion member, a selective reflection member, a liquid crystal cell, and a display-side polarizer disposed in this order, wherein the backlight unit includes a light source that emits unpolarized light having a light emission central wavelength in a wavelength range of 300 nm to lower than 430 nm, the selective reflection member reflects 60% to 100% of the unpolarized light entering the selective reflection member and transmits at least some of light in a wavelength of higher than 430 nm to 650 nm, and the light conversion member includes an aligned fluorescent material that, due to the unpolarized light entering the light conversion member, emits blue light which has a light emission central wavelength in a wavelength range of 430 nm to 480 nm and is light linearly polarized in a vibration direction parallel to an absorption axis of the display-side polarizer, green light which has a light emission central wavelength in a wavelength range of 500 nm to 600 nm and is light linearly polarized in the vibration direction parallel to the absorption axis of the display-side polarizer, and red light which has a light emission central wavelength in a wavelength range of 600 nm to 650 nm and is light linearly polarized in the vibration direction parallel to the absorption axis of the display-side polarizer.