Liquid crystal display apparatus

Patent metadata

Field	Value
Publication number	US-9690128-B2
Application number	US-201514806900-A
Country	US
Kind code	B2
Filing date	Jul 23, 2015
Priority date	Jul 25, 2014
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

Provided is a liquid crystal display apparatus according to an exemplary embodiment of the present disclosure. The liquid crystal display apparatus includes: a liquid crystal display panel; a first chassis; a second chassis; a circuit unit; a flexible substrate; a shield unit; and a pem-nut. The shield unit is disposed to surround at least a part of the flexible substrate and circuit unit and be bonded to at least a part of the flexible substrate. The pem-nut is exposed through a hole penetrating the shield unit and the circuit unit, and a bolt-insertion part is disposed. A top side of the pem-nut is positioned to be higher than a top side of the circuit unit. In the liquid crystal display apparatus according to an exemplary embodiment of the present disclosure, the reliability of the liquid crystal display apparatus is improved.

First claim

What is claimed is:

1. A liquid crystal display apparatus comprising:
a liquid crystal display panel;
a chassis unit configured to surround the liquid crystal display panel;
a circuit unit disposed to be in contact with the chassis unit;
a shield unit configured to surround at least a part of the chassis unit and circuit unit; and
a fixing structure configured to fix the shield unit and the circuit unit to the chassis unit,
wherein the fixing structure includes a pem-nut provided at the chassis unit and a bolt fastened to the pem-nut through a hole of the shield unit and a hole of the circuit unit, and has an edge joint structure in which a lateral side of the pem-nut is in contact with the hole of the shield unit.

2. The liquid crystal display apparatus according to claim 1 , wherein the fixing structure further includes an annular ring disposed between the bolt and the pem-nut, and
the annular ring is in contact with a top side of the shield unit and a top side of the pem-nut.

3. A liquid crystal display apparatus comprising:
a liquid crystal display panel;
a first chassis outside the liquid crystal display panel;
a second chassis on the liquid crystal display panel to be parallel with the liquid crystal display panel and connected with the first chassis;
a circuit unit on the second chassis;
a flexible substrate of which one side is connected with the liquid crystal display panel and which is bent to surround the first chassis, so that the opposite side is connected with the circuit unit;
a shield unit disposed to surround at least a part of the flexible substrate and circuit unit and to be bonded to at least a part of the flexible substrate; and
a pem-nut including a bolt-insertion part and of which a top side is revealed through a hole penetrating the shield unit and the circuit unit,
wherein the top side of the pem-nut is positioned to be higher than a top side of the circuit unit.

4. The liquid crystal display apparatus according to claim 3 , wherein the top side of the pem-nut is positioned to be on the same plane as a top side of the shield unit or higher than the top side of the shield unit.

5. The liquid crystal display apparatus according to claim 3 , wherein the bolt-insertion part of the pem-nut is fastened to a bolt for fixing the shield unit.

6. The liquid crystal display apparatus according to claim 5 , wherein an upper part of the pem-nut fills a space between the shield unit and the bolt.

7. The liquid crystal display apparatus according to claim 3 , wherein the shield unit includes a portion in which an end portion of the hole is bent toward the second chassis, and the bent portion is in direct contact with the pem-nut.

8. The liquid crystal display apparatus according to claim 3 , wherein the second chassis includes a fixture pin which is provided within the second chassis and configured to be inserted into a hole of the flexible substrate, the circuit unit, or the shield unit corresponding to the fixture pin to fix the shield unit.

9. The liquid crystal display apparatus according to claim 3 , wherein the first chassis includes a first surface facing the second chassis and a second surface facing the liquid crystal display panel,
the liquid crystal display apparatus includes:
a first pad unit interposed between the second chassis and the first surface of the first chassis; and
a second pad unit interposed between the second surface of the first chassis and the liquid crystal display panel, and
at least one of the first pad unit and the second pad unit is composed of a foam pad layer and a rigid layer.

10. The liquid crystal display apparatus according to claim 9 , wherein the second pad unit is bonded to the second surface of the first chassis, and
the second pad unit is in contact with the liquid crystal display panel to minimize a foreign material from the outside.

11. The liquid crystal display apparatus according to claim 9 , further comprising:
a light guide plate inside the second chassis;
a reflector on one side of the light guide plate; and
an ink portion between an edge portion of the reflector and the light guide plate,
wherein the reflector and the second chassis are separated from each other by a distance equal to or smaller than thickness of the rigid layer.

12. The liquid crystal display apparatus according to claim 9 , wherein the first chassis includes a protruding portion protruded toward a direction in which the liquid crystal display panel is disposed, and
the second surface is a surface of the protruding portion facing the liquid crystal display panel.

13. The liquid crystal display apparatus according to claim 12 , further comprising:
a third pad unit on a third surface of the protruding portion facing a top side of the light guide plate,
wherein a distance between the third pad unit and the light guide plate is smaller than thickness of the first pad unit.

14. The liquid crystal display apparatus according to claim 13 , wherein a sum of a distance between the reflector and the second chassis and a distance between the third pad unit and the light guide plate is smaller than the thickness of the first pad unit.

15. An electronic device comprising:
a body realized to accommodate a display panel;
a flexible circuit board realized such that one end is connected with the display panel and the opposite end is connected with a circuit unit;
a cover configured to cover the display panel and press a bottom side of the display panel and faces a bottom side of the circuit unit by folding the flexible circuit board along an edge of the display panel; and
a fastening means configured to fix the cover to the body and suppress a positional deviation of the cover caused by an elastic restoring force of the flexible circuit board,
wherein the fastening means includes a male screw and a female screw,
wherein the female screw is provided at a fastening hole of the circuit unit.

16. The electronic device according to claim 15 ,
wherein the male screw is realized to be introduced from the outside to pass through the fastening hole of the cover corresponding to the fastening hole of the circuit unit and to be accommodated by the female screw, and
wherein, an outer peripheral surface of an inlet of the female screw is brought into contact with an inner peripheral surface of the fastening hole of the cover without having a space of deviation to suppress a positional deviation of the cover.

17. The electronic device according to claim 16 , wherein the inner peripheral surface of the fastening hole of the cover is realized to have a burring structure.

18. The electronic device according to claim 16 , further comprising:
a pad structure composed of a foam pad layer and a rigid layer to improve interference between components fastened by the fastening means and positioned within the body and improve light leakage from a backlight.

Assignees

• Lg Display Co Ltd

Inventors

• Kang Changgong
• Her Hyunggu
• Kim Taemin

Classifications

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• G02F1/133308 Primary

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

• G02F2001/133314

  Physics · mapped topic

• G02F2201/46

  Fixing elements · CPC title

• G02F1/133314

  Back frames · CPC title