IP Library Granted Patent US 7,802,908
Granted Patent B2
US 7,802,908 · App. 12/155,865 · Granted Sep 28, 2010

Light guide module and a display device with the light guide module

Assignees: Silitek Electronic (Guangzhou) Co., Ltd.; Lite-On Technology Corporation
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Quick Facts
Patent No.
US 7,802,908
App. No.
12/155,865
Granted
Sep 28, 2010
Kind
B2
Abstract

A light guide module and a display device with the light guide module are disclosed. The light guide module includes a rigid light guide film and a soft light guide film. The soft light guide film is pasted on the rigid light guide film. The soft light guide film has a first surface, and a pattern is formed on the first surface. The area of the first surface without the pattern is pasted on the rigid light guide film. The pattern is positioned between the soft light guide film and the rigid light guide film. The display device includes at least one light guide module and a light source located at one side of the light guide module. When the light source is on, the pattern is lit and visible.

Claims (8)

1. A display device, comprising:

a first light guide module; and

a second light guide module;

wherein each of the two light guide modules has at least one light source, and the light sources are respectively located at one side of the light guide module;

wherein the first light guide module and the second light guide module each has a rigid light guide film and a soft light guide film, the soft light guide film has a first surface, a pattern is formed on the first surface, an area of the first surface without the pattern is pasted onto the rigid light guide film, the pattern is positioned between the soft light guide film and the rigid light guide film, the first light guide module and the second light guide module are stacked orderly, there is a gap between the rigid light guide film of the first light guide module and the soft light guide film of the second light guide module, and the patterns on the first light guide module and the second light guide module are lit and are visible when the light sources are on.

2. The display device as claimed in claim 1 , wherein the pattern is composed of a plurality of convex points and the material of which is the same as that of the soft light guide film, or composed of a plurality of concave marks formed on the first surface of the soft light guide film.

3. The display device as claimed in claim 1 , wherein the illumination of the light source for the second light guide module is larger than the illumination of the light source for the first light guide module.

4. The display device as claimed in claim 1 , wherein the second light guide module further comprises a reflection plate, and the reflection plate is pasted onto the rigid light guide film of the second light guide module so that the rigid light guide film is positioned between the reflection plate and the soft light guide film.

Assignments (3)
CHANGE OF NAME Recorded Nov 2, 2013
From: SILITEK ELECTRONIC (GUANGZHOU) CO., LTD.
To: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED
Reel/Frame 031558/0832 →
CORRECTIVE ASSIGNMENT TO ADD THE SECOND ASSIGNOR'S NAME, PREVIOUSLY RECORDED ON REEL 21117 FRAME 311. Recorded Jul 2, 2008
From: LIN, HUI-LING; PAN, CHANG-HUNG
To: SILITEK ELECTRONIC ( GUANGZHOU) CO., LTD.; LITE-ON TECHNOLOGY CORPORATION
Reel/Frame 021186/0042 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 18, 2008
From: LIN, HUI-LING
To: SILITEK ELECTRONIC (GUANGZHOU) CO., LTD.; LITE-ON TECHNOLOGY CORPORATION
Reel/Frame 021117/0311 →
Priority Claims (1)
CN 2008 1 0026842 · Mar 14, 2008 · national
Continuity (1)
Related Publication 20090231882A1 · Sep 17, 2009