IP Library Granted Patent US 7,438,450
Granted Patent B2
US 7,438,450 · App. 11/807,573 · Granted Oct 21, 2008

Surface light source device and liquid crystal display assembly

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Quick Facts
Patent No.
US 7,438,450
App. No.
11/807,573
Granted
Oct 21, 2008
Kind
B2
Abstract

A liquid crystal display assembly includes a liquid crystal display, and a surface light source device that illuminates the liquid crystal display from a back surface. The surface light source device includes a housing including a bottom plate, a light source that is arranged on the bottom plate and illuminates the liquid crystal display, and a plurality of radiator fins arranged at a spacing from each other. Each of the radiator fins includes a first fin portion formed by bending a part of the bottom plate in a direction away from the liquid crystal display, the first fin portion extending substantially perpendicularly to the bottom plate, and a second fin portion formed by bending a part of the first fin portion in a direction away from the liquid crystal display, the second fin portion extending substantially parallel to the bottom plate.

Claims (21)

1. A liquid crystal display assembly, comprising:

a liquid crystal display; and

a surface light source device that illuminates the liquid crystal display from a back surface,

wherein the surface light source device includes

a housing including a bottom plate,

a light source that is arranged on the bottom plate and illuminates the liquid crystal display, and

a plurality of radiator fins arranged at a spacing from each other, and

wherein each of the radiator fins includes

a first fin portion formed by bending a part of the bottom plate in a direction away from the liquid crystal display, the first fin portion extending substantially perpendicularly to the bottom plate, and

a second fin portion formed by bending a part of the first fin portion in a direction away from the liquid crystal display, the second fin portion extending substantially parallel to the bottom plate;

wherein a cover surrounding the plurality of radiator fins is arranged so as to face the bottom plate, a vent hole and a blower-means opening are formed in the cover, and blower means is arranged in the opening.

2. The liquid crystal display assembly according to claim 1 , wherein a plurality of the light sources are arranged at a spacing from each other, and each of the light sources is arranged at the boundary between the first fin portion and the bottom plate.

3. A surface light source device that illuminates the liquid crystal display from a back surface, comprising:

a housing including a bottom plate;

a light source that is arranged on the bottom plate and illuminates the liquid crystal display; and

a plurality of radiator fins arranged at a spacing from each other,

wherein each of the radiator fins includes

a first fin portion formed by bending a part of the bottom plate in a direction away from the liquid crystal display, the first fin portion extending substantially perpendicularly to the bottom plate, and

a second fin portion formed by bending a part of the first fin portion in a direction away from the liquid crystal display, the second fin portion extending substantially parallel to the bottom plate;

wherein a cover surrounding the plurality of radiator fins is arranged so as to face the bottom plate, a vent hole and a blower-means opening are formed in the cover, and blower means is arranged in the opening.

4. The surface light source device according to claim 3 , wherein a plurality of the light sources are arranged at a spacing from each other, and each of the light sources is arranged at the boundary between the first fin portion and the bottom plate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2017
From: SONY CORPORATION
To: SATURN LICENSING LLC
Reel/Frame 043177/0794 →