Liquid crystal display device having a transparent plate disposed on both sides of the liquid crystal panel

• US 7,868,966 B2
• Filed: 01/10/2008
• Issued: 01/11/2011
• Est. Priority Date: 04/30/2004
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Paik, Sang-Yoon, Moon, Hong-Man, Lee, Su-Woong
• Primary Examiner(s): QI, ZHI QIANG
• Application Number:
  US12/007,436
• Publication Number:
  US 20080129919A1
• Time in Patent Office: 1,097 Days
• Field of Search: 349/58, 349/60, 349/61
• US Class Current: 349/58
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 2201/50 Protective arrangements
• CPC Class Codes: G02F 2201/54 Arrangements for reducing warping-twist

Abstract

A liquid crystal display device (LCD) includes a liquid crystal panel displaying an image; a first transparent plate disposed on the liquid crystal panel; a second transparent plate disposed underneath the liquid crystal panel; a support member supporting the second transparent plate and the liquid crystal panel; and a fixing member disposed on the first transparent plate, the fixing member coupled with the support member to fix the liquid crystal panel and the first and second transparent plates in place, and to protect the liquid crystal panel and the first and second transparent plates.

Claims

1. An LCD, comprising:

a liquid crystal panel displaying an image;

a first transparent plate disposed on the liquid crystal panel;

a second transparent plate disposed underneath the liquid crystal panel;

a support member disposed underneath the second transparent plate to support the second transparent plate and the liquid crystal panel;

a fixing member disposed on the first transparent plate, the fixing member coupled with the support member to fix the liquid crystal panel and the first and second transparent plates in place, and to protect the liquid crystal panel and the first and second transparent plates; and

a backlight assembly disposed underneath the liquid crystal panel to supply light to the liquid crystal panel,

wherein the first transparent plate protects the liquid crystal panel and protecting the liquid crystal panel from exposing to the outside, and

wherein the second transparent plate eliminates a gap between liquid crystal panel and the support member,

wherein the liquid crystal panel includes at least one of a TN (Twisted Nematic) mode and a VA (Vertical Alignment) mode,

wherein the backlight assembly is an edge type backlight assembly,

wherein the liquid crystal panel is 60 inches,

wherein the first transparent plate directly contacts an upper surface of the liquid crystal panel.

2. The LCD according to claim 1, wherein the liquid crystal panel includes:

a first substrate;

a second substrate spaced apart from the first substrate by a predetermined distance;

a liquid crystal layer disposed between the first substrate and the second substrate;

a first polarizer disposed on the first substrate; and

a second polarizer disposed underneath the second substrate.

3. A liquid crystal display device, comprising:

a liquid crystal panel;

a first transparent plate disposed on a first surface of the liquid crystal panel;

a second transparent plate disposed on a second surface of the liquid crystal panel;

a support member disposed underneath the second transparent plate to support the second transparent plate and the liquid crystal panel;

a fixing member disposed on the first transparent plate, the fixing member coupled with the support member; and

a backlight assembly disposed underneath the liquid crystal panel to supply light to the liquid crystal panel.

4. The liquid crystal display device according to claim 3 wherein the liquid crystal panel includes at least one of a TN (Twisted Nematic) mode and a VA (Vertical Alignment) mode.

5. The liquid crystal display device according to claim 3 wherein the backlight assembly is an edge type backlight assembly.

6. The liquid crystal display device according to claim 3 wherein the liquid crystal panel is 60 inches or greater.

7. The liquid crystal display device according to claim 3 wherein the first transparent plate directly contacts an upper surface of the liquid crystal panel.

8. The liquid crystal display device according to claim 3 wherein the second transparent plate directly contacts a lower surface of the liquid crystal panel.