Liquid crystal display device module

Patent metadata

Field	Value
Publication number	US-9335576-B2
Application number	US-201213648974-A
Country	US
Kind code	B2
Filing date	Oct 10, 2012
Priority date	Oct 10, 2011
Publication date	May 10, 2016
Grant date	May 10, 2016

Abstract

A liquid crystal display (LCD) device module includes a liquid crystal (LC) panel; a backlight unit disposed on a rear surface of the LC panel; a cover bottom where the LC panel and the backlight unit are mounted; a plurality of guide panels coupled to side surfaces of the cover bottom, and configured to support four side ends of the LC panel below the LC panel; and a case top configured to enclose outer surfaces of the guide panels.

First claim

What is claimed is:

1. A liquid crystal display (LCD) device module, comprising:
a liquid crystal display (LCD) panel having a light emitting surface and a rear surface;
a backlight unit disposed on a rear surface side of the LCD panel and including an LED substrate on which LEDs are mounted;
a cover bottom including a bottom surface, on which the LED substrate is mounted, and a plurality of protrusion units protruding outward from each corner of the bottom surface, each protrusion unit having grooves;
a plurality of guide panels coupled to peripheral edges of a rear surface of the cover bottom and supporting the peripheral edges of the rear surface of the LCD panel;
a plurality of coupling members each inserted into a gap between ends of two neighboring guide panels to fix the two neighboring guide panels; and
a case top enclosing outer surfaces of the guide panels and covering the peripheral edges of the emitting surface of the LCD panel,
wherein each corner of the bottom surface of the cover bottom corresponds to ends of two guide panels and grooves of one of the protrusion units, and
wherein the coupling member includes:
a body unit in a straight-line shape;
a plurality of first branch units perpendicularly extending from an upper portion of the body unit for coupling the guide panels; and
a plurality of second branch units perpendicularly extending from a lower portion of the body unit for coupling the cover bottom, the second branch units having protrusions to be inserted into the grooves of one of the protrusion units in the cover bottom.

2. The LCD device module of claim 1 , wherein the guide panels include:
a first blade unit on which the LCD panel is placed and whose side surfaces are disposed vertically to the cover bottom to support each peripheral edge of the LCD panel; and
a second blade unit extended from the first blade unit and bent inward the LCD device module to couple a rear surface of the cover bottom.

3. The LCD device module of claim 2 , wherein an inner peripheral edge of an upper surface of the case top is positioned outer than an inner side surface of the first blade.

4. The LCD device module of claim 2 , wherein an inner side surface of an upper section of the first blade is positioned outer than an inner side surface of a lower section of the first blade.

5. The LCD device module of claim 4 , wherein an upper inner side surface of the first blade is provided with a step, and a peripheral edge of the LCD panel is arranged over the step.

6. The LCD device module of claim 2 , wherein the first blade unit has at least one hole on a side surface thereof for insertion-coupling with the case top.

7. The LCD device module of claim 2 , wherein upper surfaces of both ends of the first blade unit have concave convex groove.

8. The LCD device module of claim 1 , wherein an upper surface of the case top has a width of 1.5 mm˜2.5 mm.

9. The LCD device module of claim 1 , wherein an overlapped area of the LCD panel and the case top is 40%˜50% of an area of the upper surface of the case top.

10. The LCD device module of claim 1 , wherein the backlight unit includes:
a plurality of LED PKGs (Light Emitting Diode Packages);
the LED substrate on which the LED PKGs are mounted;
a reflection plate disposed above the LED substrate the reflection plate having a plurality of holes to expose the LED PKGs there through; and
an optical sheet for diffusing and collecting light emitted from the LED PKGs,
wherein the optical sheet is disposed on a rear surface of the LCD panel and supported by steps provided on upper inner surfaces of the guide panels.

11. The LCD device module of claim 1 , wherein the protrusion units protrude in parallel with the bottom surface.

Assignees

• Lg Display Co Ltd

Inventors

• Shin Jaewon
• Jeon Wook

Classifications

• G02F2001/133314

  Physics · mapped topic

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G02F1/133608

  including particular frames or supporting means · CPC title

• G02F1/1333 Primary

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• G02F1/133314

  Back frames · CPC title