Patent ID: 8558970

Claim:
A display unit comprising: a display panel driven based on an image signal; a pair of a first polarizer and a second polarizer sandwiching the display panel; a reflection sheet; a light source illuminating the display panel provided between the reflection sheet and the display panel; a diffusion sheet provided between the light source and the display panel; a single layer light transmissive film provided between the first polarizer and the diffusion sheet; and a wave plate provided between the first polarizer and the single layer light transmissive film, wherein the diffusion sheet passes non-polarized light from the light source to the single layer light transmissive film, passes reflected light from the single layer light transmissive film to the reflection sheet, and passes non-polarized light from the reflection sheet to the single layer light transmissive film, the single layer light transmissive film has a plurality of first convex sections along one plane, the respective first convex sections extend toward the horizontal direction, and are arranged in a direction crossing the extending direction of the first convex sections, a refractive index in one direction of the respective first convex sections is larger than a refractive index in a direction orthogonal to the one direction of the respective first convex sections, the wave plate changes a polarization direction of light entering the wave plate, so that among light passing through the single layer light transmissive film orthogonal to the one direction which then enters the wave plate, an angle between a polarization direction of the light after the light passes through the wave plate and a polarizing axis direction of the first polarizer becomes small, and the second polarizer has a polarizing axis transmitting a polarization component in the vertical direction.