Display device

Patent metadata

Field	Value
Publication number	US-9697941-B2
Application number	US-201514985297-A
Country	US
Kind code	B2
Filing date	Dec 30, 2015
Priority date	Mar 17, 2015
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A display device includes a display panel, an accommodation member configured to accommodate the display panel therein and to fold or unfolded the display panel along one direction, and a magnetic force generating member coupled to the accommodation member, the magnetic force generating member being configured to magnetized when current flows, and to generate a magnetic force in a first state in which the display panel is unfolded.

First claim

What is claimed is:

1. A display device comprising:
a display panel;
an accommodation member configured to accommodate the display panel therein and to fold or unfolded the display panel along one direction; and
a magnetic force generating member coupled to the accommodation member, the magnetic force generating member being configured to be magnetized when current flows, and to generate a magnetic force in a first state in which the display panel is unfolded,
wherein at least one portion of the display panel is supported by the magnetic force.

2. The display device of claim 1 , wherein the magnetic force is a repulsive force that pushes the display panel out.

3. The display device of claim 1 ,
wherein the display panel is divided into a first area overlapping a folding axis and a second area and a third area spaced from each other with the first area therebetween in the first state,
wherein the first area is configured to change in shape in a second state in which the display panel is folded, and
wherein the first area is defined, on the same plane as those of the second and third areas, by the magnetic force in the first state.

4. The display device of claim 3 , wherein the display panel is substantially flat in the first state along a direction crossing a direction in which the folding axis extends.

5. The display device of claim 3 , wherein the magnetic force generating member overlaps at least the first area.

6. The display device of claim 5 , wherein, when the display panel is unfolded, the current is applied to the magnetic force generating member, and when the display panel is folded, the current is cut off.

7. The display device of claim 6 , wherein the magnetic force generating member comprises at least one electromagnet.

8. The display device of claim 3 , wherein the display panel comprises:
a base layer;
a pixel layer on a front surface of the base layer, the pixel layer being configured to generate an image; and
a magnetic layer disposed on a rear surface of the base layer, the magnetic layer exhibiting magnetism,
wherein the magnetic layer overlaps at least the first area of the first to third areas.

9. The display device of claim 8 , wherein the magnetic layer comprises a magnetic rubber.

10. The display device of claim 8 ,
wherein the magnetic force generating member is divided into a first portion adjacent to the display panel and a second portion connecting to the first portion and farther from the display panel relative to the first portion, the first portion having a different polarity from the second portion, and
wherein the magnetic layer has the same polarity as the first portion.

11. The display device of claim 3 , wherein the accommodation member comprises:
a first body part overlapping the second area;
a second body part overlapping the third area; and
a connection part overlapping the first area, and coupled to the first and second body parts.

12. The display device of claim 11 , wherein the magnetic force generating member is coupled to the connection part.

13. The display device of claim 11 ,
wherein the magnetic force generating member comprises a plurality of magnetic force generating members, and
wherein the plurality of magnetic force generating members are on an area overlapping the first area and corresponding to the first body part, and on an area overlapping the first area and corresponding to the second body part.

14. The display device of claim 3 , wherein a minimum distance between the display panel and the magnetic force generating member in the first state is greater than that between the display panel and the magnetic force generating member in the second state.

15. The display device of claim 1 , wherein the magnetic force generating member is apart from the portion of the display panel in the first state.

16. A display device comprising:
a display panel;
an accommodation member configured to accommodate the display panel therein and to fold or unfold the display panel along one direction; and
a magnetic force generating member coupled to the accommodation member, the magnetic force generating member being magnetized when current flows, and
wherein the display panel is unfolded in a first state and is folded in a second state,
wherein the magnetic force generating member generates a magnetic force in the first state, and
wherein the magnetic force generating member is apart from the display panel in the first state.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Ki-Seob

Classifications

• H01F7/20 Primary

  without armatures (cores H01F3/00; coils H01F5/00 {; shaping metal by applying magnetic forces B21D26/14; electromagnets specially adapted for NMR applications G01R33/381}) · CPC title

• G02F1/13

  based on liquid crystals, e.g. single liquid crystal display cells · CPC title

• G02F1/133305

  Flexible substrates, e.g. plastics, organic film · CPC title

• G09F9/301 Primary

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

• G02F1/133308

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