| 摘要 |
A backlight (lighting device) (60) is arranged on a backside of a liquid crystal panel (50), and comprises an LED (61), an optical waveguide (62), a reflective sheet (63), and a prism sheet (64). A diffractive optical element (DOE) (62a) constituted of a binary concave and convex pattern is formed in an end surface of the optical waveguide (62) on an LED arranged side. |
