Liquid crystal display module and assembling method thereof

• US 20040125269A1
• Filed: 12/15/2003
• Published: 07/01/2004
• Est. Priority Date: 12/26/2002
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Kim, Kyoung Sub, Oh, Seok Hwan
• Granted Patent: US 7,161,642 B2
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• CPC Class Codes: G02F 1/133322 Mechanical guidance or alignment of LCD panel support components
• CPC Class Codes: G02F 1/133604 with lamps
• CPC Class Codes: G02F 1/133605 including specially adapted reflectors
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means

Abstract

The liquid crystal display module comprises a bottom cover having a plurality of lamps installed thereon and at least one or more of guide projection formed thereon; and a reflection sheet for reflecting light generated from the lamps and having a guide hole in order to be inserted in the guide projection.

Claims

1. A liquid crystal display module, comprising:

a bottom cover having a plurality of lamps installed thereon and at least one or more guide projections thereon; and

a reflection sheet that reflects light generated from the lamps and has a guide hole to receive each of the guide projections.

2. The liquid crystal display module according to claim 1, further comprising a diffusion plate that diffuses the light generated from the lamps.

3. The liquid crystal display module according to claim 2, further comprising:

a lamp holder that accommodates the lamps by groups and that is located on the reflection sheet;

a display panel that implements pictures by using light diffused by the diffusion plate;

a guide panel having the display panel installed thereon; and

a top case that encloses the guide panel and the display panel.

4. The liquid crystal display module according to claim 3, further comprising a uneven part that guides the lamp holder, wherein the uneven part has protrusions at designated intervals at one side of the bottom cover.

5. The liquid crystal display module according to claim 1, wherein the bottom cover comprises:

a bottom surface having the guide projection formed in one side thereof; and

an inclination surface extended from the bottom surface and inclined by a designated angle with respect to the bottom surface,

wherein the bottom cover is open except for the bottom surface and the side surface thereof.

6. The liquid crystal display module according to claim 1, wherein the height of the guide projection is greater than the thickness of the reflection sheet.

7. The liquid crystal display module according to claim 1, wherein the bottom cover is coupled with a support side by a coupling means.

8. The liquid crystal display module according to claim 1, wherein the bottom cover and the reflection sheet are adhered to each other by a double-sided adhesive tape.

9. The liquid crystal display module according to claim 5, wherein the reflection sheet comprises:

a first reflection region corresponding to the bottom surface of the bottom cover; and

a second reflection region corresponding to the inclination surface of the bottom cover and inclined with respect to the first region and a half-cutting line.

10. A method of assembling a reflection sheet on a bottom cover, comprising:

inserting a guide projection of a bottom cover into a guide hole of a reflection sheet; and

attaching the reflection sheet to the bottom cover.

11. The method according to claim 10, wherein the height of the guide projections is greater than the thickness of the reflection sheet.

12. The method according to claim 10, wherein the reflection sheet is attached to the bottom cover using an adhesive.

13. The method according to claim 10, wherein the reflection sheet is attached to the bottom cover using adhesive tape.

14. A liquid crystal display, comprising:

two substrates having liquid crystal disposed therebetween;

a backlight that emits light through the substrates and the liquid crystal layer;

a bottom cover having a guide projection thereon, the guide projection protruding into the interior of the liquid crystal display; and

a reflection sheet that reflects light generated from the backlight and having a guide hole to receive the guide projection.

15. The liquid crystal display according to claim 14, wherein only an adhesive is between the reflection sheet and the bottom cover.