ILLUMINATION DEVICE, DISPLAY DEVICE USING SAME, AND TELEVISION RECEIVING DEVICE

摘要

This illumination device is provided with light sources (15) arranged in one direction along a line or side-by-side, a light-guide plate (14) which guides light incident from an incidence surface (14a) on the side circumferential surface across from the light sources (15) and emits planar illumination light from an exit surface (14b) on the front surface, a chassis (13) which covers and supports the light sources (15) and the periphery of the light-guide plate (14), a scattering pattern (18) which is formed on the back surface (14c) of the light-guide plate (14), and positioning units (14g) which are provided jutting from the side peripheral surface of the light-guide plate (14) for positioning the light-guide plate (14) by fitting with the inner surface of the chassis (13), wherein the scattering pattern (18) is provided so as to extend on the positioning units (14g).

主权项

1. An illumination device comprising:
a light source that is provided in side-by-side arrangement in one direction or provided to extend in one direction; a light guide plate that guides light that has entered from an incidence surface at a side circumferential surface thereof opposed to the light source and emits planar illumination light from an emission surface at a front surface thereof; a chassis that holds the light source and the light guide plate while covering a periphery of the light source and the light guide plate; a scattering pattern that is formed on a back surface of the light guide plate; and a positioning portion that is provided in a projecting manner at a side circumferential surface of the light guide plate and is used for positioning of the light guide plate by being fitted into an inner surface of the chassis, wherein the scattering pattern is provided to extend further onto the positioning portion.