IP Library Granted Patent US 8,542,332
Granted Patent B2
US 8,542,332 · App. 12/588,299 · Granted Sep 24, 2013

Liquid crystal display device comprising a protection sheet attached to a reflector and including a protruding part that extends along a first direction from an edge of the protection sheet

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Quick Facts
Patent No.
US 8,542,332
App. No.
12/588,299
Granted
Sep 24, 2013
Kind
B2
Abstract

A liquid crystal display device includes a liquid crystal panel; a main frame surrounding sides of the liquid crystal panel; a backlight unit disposed under the liquid crystal panel and surrounded by the main frame, the backlight unit including a light guide plate, a lamp at a side of the light guide plate, a reflector under the light guide plate and an optical sheet on the light guide plate, wherein a rear surface of the reflector is exposed through an opening of the main frame; and a protection sheet attached to the rear surface of the reflector to protect the rear surface of the reflector and including a protruding part at a side of the protection sheet, the protection sheet has a rectangular shape.

Claims (11)

1. A liquid crystal display device, comprising:

a liquid crystal panel;

a main frame surrounding sides of the liquid crystal panel;

a backlight unit disposed under the liquid crystal panel and surrounded by the main frame, the backlight unit including a light guide plate, a lamp at a side of the light guide plate, a reflector under the light guide plate and an optical sheet on the light guide plate, wherein a rear surface of the reflector is exposed through an opening of the main frame; and

a protection sheet attached to the rear surface of the reflector to protect the rear surface of the reflector and includes a protruding part that extends along a first direction from an edge of the protection sheet, the protection sheet has a rectangular shape,

wherein the edge has a first width along a second direction, which is perpendicular to the first direction, and the protruding part has a second width, which is smaller than the first width, along the second direction,

wherein the reflector has a third width larger than a fourth width of the opening of the main frame and a first length larger than a second length of the opening of the main frame, and wherein the rectangular shape of the protection sheet has the first width being substantially equal to the fourth width and a third length smaller than the second length, and

wherein the first width, the second width, and the third length being along a surface plane of the protection sheet, the first length and the third width being along a surface plane of the reflector, and the fourth width and the second length being along a surface plane of the main frame.

2. The device according to claim 1 , wherein the protruding part is disposed in the opening of the main frame.

3. The device according to claim 1 , wherein the reflector is an enhanced specular reflector.

4. The device according to claim 1 , further comprising adhesive tape covering front edges of the liquid crystal panel and combined with the main frame.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2025
From: LG DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 071529/0841 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 9, 2009
From: PARK, JAE-SUNG; LEE, JUNG-HUN
To: LG DISPLAY CO., LTD.
Reel/Frame 023388/0105 →