Display device

Patent metadata

Field	Value
Publication number	US-11653532-B2
Application number	US-202017009142-A
Country	US
Kind code	B2
Filing date	Sep 1, 2020
Priority date	Sep 17, 2019
Publication date	May 16, 2023
Grant date	May 16, 2023

Abstract

A display device includes a display panel including an active area in which a plurality of pixels is defined and a pad area in which pads for applying signals to the plurality of pixels are placed; a back cover placed to overlap the display panel; and a roller configured to wind or unwind the back cover and the display panel and including a flat portion and a curved portion, wherein the pad area is placed to be inclined toward the flat portion.

First claim

What is claimed is:

1. A display device, comprising:
a display panel including an active area in which a plurality of pixels is defined and a pad area in which pads for applying signals to the plurality of pixels are placed;
a back cover placed to overlap the display panel;
a flexible film attached to the pad area;
a support member having an inclined surface corresponding to the pad area and configured to support the pad area, the support member being disposed between the flexible film and the back cover; and
a roller configured to wind or unwind the back cover and the display panel and including a flat portion and a curved portion,
wherein the pad area is placed to be inclined toward the flat portion.

2. The display device according to claim 1 , wherein an end of the support member corresponds to an end of the flat portion.

3. The display device according to claim 1 , wherein the support member is placed between the display panel and the back cover.

4. The display device according to claim 1 , further comprising:
a base plate placed under the back cover and combined to the back cover,
wherein the support member is placed between the base plate and the back cover, and
the back cover is placed to be inclined along a shape of the support member.

5. The display device according to claim 1 , wherein the support member is made of a plastic-based material.

6. The display device according to claim 1 , wherein the back cover includes a protrusion placed under the pad area, and
the protrusion has an inclined surface corresponding to the pad area.

7. The display device according to claim 1 , further comprising:
a base plate placed to support a part of a surface opposite to one surface of the back cover on which the display panel is disposed;
a top cover combined with the base plate to fix the back cover interposed between the top cover and the base plate; and
a bottom cover placed between the base plate and the top cover.

8. The display device according to claim 7 , wherein the base plate includes a protrusion placed under the pad area and the back cover, and
the protrusion has an inclined surface corresponding to the pad area.

9. The display device according to claim 7 , wherein the base plate has an inclined surface corresponding to an inclination of the pad area.

10. The display device according to claim 7 , wherein the bottom cover has an inclined surface corresponding to the pad area, and
the inclined surface of the bottom cover is placed between the display panel and the back cover.

11. The display device according to claim 10 , further comprising:
at least one flexible film placed in the pad area,
wherein the inclined surface of the bottom cover includes at least one groove placed between the flexible films.

12. The display device according to claim 7 , wherein a part of an inner peripheral surface of the top cover corresponding to the pad area has an inclined surface at the same inclination as the pad area.

13. The display device according to claim 1 , wherein an angle of inclination of the pad area on both sides of the display panel is higher than an angle of inclination of the pad area at a central portion of the display panel.

14. A display device, comprising:
a display panel configured to display images and including an active area and a pad area which is extended from one side of the active area and to which a flexible film is attached;
a back cover configured to be rolled up together with the display panel;
a roller configured to wind or unwind the back cover and the display panel and including a flat portion and a curved portion; and
a support member having an inclined surface corresponding to the pad area, the support member being disposed between the flexible film and the back cover,
wherein the pad area is placed to be inclined toward a part of the display panel except the pad area.

15. The display device according to claim 14 , further comprising:
a base plate placed on the flat portion;
a top cover configured to fix the back cover and the display panel placed on the base plate; and
a bottom cover placed between the base plate and the top cover,
wherein the top cover has an inclined surface corresponding to the pad area.

16. The display device according to claim 15 , wherein the base plate has an inclined surface corresponding to the pad area, and
the back cover and the display panel are supported by the inclined surface.

17. The display device according to claim 15 , wherein the bottom cover has an inclined surface that supports the pad area between the pad area and the back cover, and
an end of the bottom cover corresponds to an end of the flat portion.

Assignees

• Lg Display Co Ltd

Inventors

• Song Jihun
• Lee Moonsun
• Kwon Hoiyong

Classifications

• H10K59/873

  Encapsulations · CPC title

• H10K59/122

  Pixel-defining structures or layers, e.g. banks · CPC title

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• H10K50/844

  Encapsulations · CPC title

• G06F1/1652

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title