BACKLIGHT DEVICE AND LIQUID-CRYSTAL DISPLAY DEVICE
First Claim
1. A backlight device, comprising:
- a light-guide plate that emits incident light from an end face to a front side;
a light source that irradiates light toward the end face;
a back face chassis that is provided on a side of a back face of the light-guide plate; and
a heat radiation member that is provided on a side of a back face of the back face chassis and dissipates heat from the light source, whereinthe heat radiation member has chassis contact portions that make partial contact with the back face of the back face chassis at multiple sites.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided are a backlight device and a liquid-crystal display device whereby, while carrying out a radiation countermeasure of a light source, uniformity of temperature of a back face chassis is effected. The backlight device comprises: a light-guide plate (12) which emits toward the front face side light which enters from an end face; a light source (14a) which projects light toward the end face; a back face chassis (9) which is disposed on the back face side of the light-guide plate; and a heat radiation member (8a) which is disposed on the back face side of the back face chassis, and which dissipates heat from the light source. The heat radiation member further comprises chassis contact portions (38a-38c) which make partial contact with the back face of the back face chassis at multiple sites.
23 Citations
9 Claims
-
1. A backlight device, comprising:
-
a light-guide plate that emits incident light from an end face to a front side; a light source that irradiates light toward the end face; a back face chassis that is provided on a side of a back face of the light-guide plate; and a heat radiation member that is provided on a side of a back face of the back face chassis and dissipates heat from the light source, wherein the heat radiation member has chassis contact portions that make partial contact with the back face of the back face chassis at multiple sites. - View Dependent Claims (2, 3, 4, 9)
-
-
5. A backlight device, comprising:
-
a light-guide plate that emits incident light from an end face to a front side; a light source that irradiates light toward the end face; a back face chassis that is provided on a side of a back face of the light-guide plate; and a heat radiation member that is provided on a side of a back face of the back face chassis, holds the light source at a site being extended toward the end face, and dissipates heat from the light source, wherein the heat radiation member has a chassis holding portion that determines a position of the back face chassis. - View Dependent Claims (6, 7, 8)
-
Specification