Liquid crystal display device

• US 8,421,950 B2
• Filed: 06/21/2010
• Issued: 04/16/2013
• Est. Priority Date: 12/14/2009
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: Yoo, Byungik, Kim, Hyunok
• Primary Examiner(s): NGUYEN, THANH NHAN P
• Application Number:
  US12/820,039
• Publication Number:
  US 20110141391A1
• Time in Patent Office: 1,030 Days
• Field of Search: None
• US Class Current: 349/58
• CPC Class Codes: G02B 6/0093 Means for protecting the light guide
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• 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

Abstract

The present disclosure relates to the present disclosure relates to a liquid crystal display device adapting a guide panel having a reinforced structure. A liquid crystal display panel according to the present disclosure comprises: a liquid crystal display panel; a light guide plate disposed under the liquid crystal display panel; an LED light source disposed one side of the light guide plate; a cover bottom housing the LED light source and the light guide plate; and a guide panel supporting the liquid crystal display panel, and wraping the LED light source and the light guide plate at outside, wherein the guide panel has an outer vertical surface and a support rib apart from the outer vertical surface inward to form a space for holding a vertical surface of the cover bottom. With simple structure on the guide panel, the reliability of the liquid crystal display panel is enhanced remarkably.

Claims

1. A liquid crystal display device comprising:

a guide panel including a body portion having 4 rim frames having a first width, a first, a second, a third and a fourth vertical surfaces extruded downward with a first length from outsides of the 4 rim frames, a first support rib, a second support rib and a third support rib apart from the first, and the second, and the third vertical surfaces, respectively extended downward with a second length except the fourth vertical surface, and a settle portion protruded inward from the 4 rim frames with a second width;

a light emitting diode (LED) light source disposed at the fourth vertical surface;

a liquid crystal display panel disposed on the settle portion of the guide panel; and

a cover bottom including 4 vertical walls and a bottom surface perpendicular to the 4 vertical walls,

wherein three vertical walls are inserted into spaces formed between the first, the second and the third support ribs and the first, the second and the third vertical surfaces.

2. The device according to claim 1, further comprising:

a light guide plate, wherein the LED light source is disposed at one side of the light guide plate.

3. The device according to claim 1, further comprising:

a reflection sheet between the cover bottom and the light guide plate; and

an optical sheet between the light guide plate and the liquid crystal display panel.

4. The device according to claim 1, wherein the first length is corresponding to a height of the vertical walls of the cover bottom, and the second length is shorter than the first length.