Portable display device

• US 20070132917A1
• Filed: 10/13/2006
• Published: 06/14/2007
• Est. Priority Date: 12/08/2005
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Kim, Tae, Kim, Sung, Bae, Kyu, Han, Kyu
• Granted Patent: US 7,884,895 B2
• Time in Patent Office: Days
• US Class Current: 349/65
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• CPC Class Codes: G02F 1/133388 with constructional differences between the display region and the peripheral region
• CPC Class Codes: G02F 1/133512 Light shielding layers, e.g. black matrix G02F1/136209 takes precedence
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means

Abstract

A portable display device including a liquid crystal display panel, a backlight assembly having a light source for supplying light to the liquid crystal display panel, a mold frame included in the backlight assembly, the mold frame formed with a step unit such that the liquid crystal display panel can be mounted in the mold frame, and a light fence located in the step unit, the light fence screening light supplied from the light source to the liquid crystal display panel.

Claims

1. A portable display device comprising:

a display panel;

a backlight assembly having a light source for supplying light to the display panel and having a mold frame with a periphery step platform; and

a light fence mounted On the periphery step platform, the light fence supporting the display panel and screening at a periphery of the backlight assembly light supplied from the light source.

2. The portable display device as claimed in claim 1, wherein

the light fence is superimposed over a non-pixel region of the display panel.

3. The portable display device as claimed in claim 1, wherein the light fence has an inner opening corresponding to a pixel region of the display panel.

4. The portable display device as claimed in claim 1,

wherein the display panel is located on a first side of the light fence, and

wherein at least one optical sheet is located on a second side of the light fence.

5. The portable display device as claimed in claim 1,

wherein the light fence has a first planar surface;

and

a second planar surface;

wherein the first planar surface and the second planar surface are opaque.

6. The portable display device as claimed in claim 1,

wherein the first planar surface is a first color;

and

wherein the second planar surface is a second color.

7. The portable display device as claimed in claim 6, wherein

the first planar surface of the light fence is opaque, and the second planar surface is reflective.

8. The portable display device as claimed in claim 1, wherein the light fence is formed from double-sided tape.

9. The portable display device as claimed in claim 1, wherein the display panel is a liquid crystal display panel.

10. A light fence for a display device, the display device having a display panel with both a display area and a non-display area and a backlight assembly having a light source for supplying light to the display panel and having a mold frame with a periphery step platform, the light fence comprising:

a planar frame sized to conform to the display area and having an inner through-hole sized to correspond to at least a portion of the non-display area, the planar frame being mountable on the step unit and having a first planar surface and a second planar surface, both the first planar surface and the second planar surface being opaque, or the first planar surface being opaque and the second planar surface being reflective.