Display device

Patent metadata

Field	Value
Publication number	US-9557589-B2
Application number	US-201414444703-A
Country	US
Kind code	B2
Filing date	Jul 28, 2014
Priority date	Jul 31, 2013
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A display device has a front surface and sides connected to each other using the same material. The display device includes a display panel, a case member wrapping around the side of the display panel, and a polarizing plate, which is attached to a front surface of the display panel and connects the display panel with the case member. The polarizing plate includes a polarizer disposed at the front surface of the display panel and a base film, which connects the front surface of the display panel with the case member.

First claim

What is claimed is:

1. A display device comprising:
a display panel;
a case member disposed to a side of the display panel, the case member including a stepped portion protruding from an inner surface of the case member toward the display panel, the stepped portion supporting a rear surface of the display panel; and
a polarizing plate attached to a front surface of the display panel opposite the rear surface of the display panel, and to an outer surface of the case member opposite the inner surface of the case member, wherein the polarizing plate includes:
a first base film disposed on the front surface of the display panel, the first base film including a first extension portion disposed on the and on the outer surface of the case member,
a second base film disposed on the front surface of the display panel, the second base film including a second extension portion disposed between the outer surface of the case member and the first extension portion of the first base film, and
a first polarizer disposed between the first base film and the second base film at the front surface of the display panel.

2. The display device of claim 1 , wherein the first base film is attached to a front surface of the first polarizer, the first extension portion extending wider than the first polarizer, the first extension portion bending around both ends of the display panel, and the first extension portion being attached to the outer surface of the case member and a back surface of the case member.

3. The display device of claim 2 , wherein the polarizing plate includes a black matrix disposed between the display panel and the first extension portion of the first base film.

4. The display device of claim 1 ,
wherein the first polarizer includes a first plurality of polymer chains oriented in a first stretching direction, the first polarizer stretching in the first stretching direction, and
wherein the first base film is stretched in a second stretching direction perpendicular to the first stretching direction of the first polarizer.

5. The display device of claim 4 , further comprising:
a second polarizing plate attached to a back surface of the display panel, the second polarizing plate comprising a second polarizer including a second plurality of polymer chains oriented in the second stretching direction of the first base film, the second polarizer stretching in the second stretching direction.

6. A display device comprising:
a display panel;
a case member disposed to a side of the display panel, the case member including a stepped portion protruding from an inner surface of the case member toward the display panel, the stepped portion supporting a rear surface of the display panel;
a first polarizing plate attached to a front surface of the display panel opposite the rear surface of the display panel and to an outer surface of the case member opposite the inner surface of the case member; and
a second polarizing plate attached to the rear surface of the display panel,
wherein the first polarizing plate includes:
a first polarizer disposed at the front surface of the display panel, the first polarizer including a first plurality of polymer chains oriented in a first stretching direction, the first polarizer stretching in the first stretching direction, and
a first base film attached to the first polarizer, the first base film disposed on the front surface of the display panel and on the outer surface of the case member, the first base film is stretched in a second stretching direction perpendicular to the first stretching direction of the first polarizer.

7. The display device of claim 6 ,
wherein the second polarizing plate comprises a second polarizer including a second plurality of polymer chains oriented in the second stretching direction, the second polarizer stretching in the second stretching direction.

8. The display device of claim 7 , wherein the second polarizing plate includes a second base film stretched parallel to the first stretching direction of the first polarizer and perpendicular to the second stretching direction of the second polarizer.

9. The display device of claim 3 , wherein the black matrix is disposed between the first base film and a pressure sensitive adhesive connecting the polarizing plate to the display panel.

10. The display device of claim 3 ,
wherein the black matrix is disposed between the first base film and the second base film.

11. The display device of claim 5 , wherein the second polarizing plate includes a third base film stretched parallel to the first polarizer stretching direction of the first polarizer and perpendicular to the stretching direction of the second polarizer.

12. The display device of claim 11 , further comprising a bottom cover having a side surface inside the inner surface of the case member and a back surface parallel to the display panel, wherein the third base film wraps around the side surface and the back surface of the bottom cover.

13. The display device of claim 8 , further comprising a bottom cover having a side surface inside the inner surface of the case member and a back surface parallel to the display panel, wherein the second base film wraps around the side surface and the back surface of the bottom cover.

14. The display device of claim 6 , wherein the first polarizer absorbs light vibrating in the first stretching direction.

15. The display device of claim 7 , wherein the second polarizer absorbs light vibrating in the second stretching direction.

Assignees

• Lg Display Co Ltd

Inventors

• Park Mikyung
• Cho Wonjong
• Lee Sumin

Classifications

• G02F2203/60

  Temperature independent · CPC title

• G02B5/30

  Polarising elements (light-modulating devices with active elements G02F1/00) · CPC title

• G02F1/133528 Primary

  Polarisers · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F1/133308 Primary

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