Flexible display apparatus

Patent metadata

Field	Value
Publication number	US-10878728-B2
Application number	US-201916510326-A
Country	US
Kind code	B2
Filing date	Jul 12, 2019
Priority date	Jul 13, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A flexible display apparatus includes a display panel including a first region, a second region, and a third region between the first region and the second region, a housing movably supporting the display panel, and a frame movably disposed in the housing to stretch or contract based on movement of the display panel, wherein the frame includes a fixing part fixed to the housing to movably support the first region of the display panel, a sliding part coupled to the second region of the display panel and movably disposed in the housing, and an elastic part elastically connected between the fixing part and the sliding part to support the third region of the display panel. Accordingly, a display area may be enlarged and reduced with only an action of a user's hand by using a frame without a separate driving power, and thus, total size and weight may decrease, thereby increasing the convenience of keeping and movement.

First claim

What is claimed is:

1. A flexible display apparatus comprising:
a display panel including a first region, a second region, and a third region, wherein the third region is located between the first region and the second region;
a housing movably supporting the display panel; and
a frame movably disposed in the housing to stretch or contract based on movement of the display panel, the frame including:
a first portion fixed to the housing to movably support the first region of the display panel;
a second, sliding portion coupled to the second region of the display panel and movably disposed in the housing; and
a third, elastic portion elastically connected to the first portion and to the second, sliding portion to support the third region of the display panel.

2. The flexible display apparatus of claim 1 , wherein the housing comprises:
a first housing sidewall supporting a first side edge of the frame;
a second housing sidewall disposed in parallel with the first housing sidewall to support a second side edge of the frame;
a third housing sidewall connected to a first side of the first housing sidewall and to a first side of the second housing sidewall; and
a guide roller rotatably connected to a second side of the first housing sidewall opposite to the first side of the first housing sidewall and to a second side of the second housing sidewall opposite to the first side of the second housing sidewall.

3. The flexible display apparatus of claim 1 , wherein one or more of the first region, the second region, and the third region display different images.

4. The flexible display apparatus of claim 2 , wherein
the guide roller supports the third region of the display panel when the display panel is sliding, and
the frame stretches or contracts along the guide roller.

5. The flexible display apparatus of claim 1 , further comprising a stopper installed in the housing to restrain sliding of the display panel.

6. The flexible display apparatus of claim 5 , wherein, when a portion of the second region of the display panel is outside of the housing, the stopper restrains sliding of the display panel.

7. The flexible display apparatus of claim 5 , wherein, when the display panel is restrained by the stopper, the frame has a first length, the display panel has a second length, and the first length is the same as the second length.

8. The flexible display apparatus of claim 5 , wherein, when restraint of sliding of the display panel by the stopper is released, the frame has a first length, the display panel has a second length, and the first length is smaller than the second length.

9. The flexible display apparatus of claim 5 , wherein the stopper comprises:
a first cylindrical body installed in the housing so as to be raised or lowered in a first axial direction; and
a second cylindrical body disposed in the housing so as to move in a second axial direction based on of movement of the first cylindrical body.

10. The flexible display apparatus of claim 9 , further comprising:
a first elastic member allowing the second cylindrical body to protrude from the housing, based on a first elastic restoring force provided by the first elastic member; and
a second elastic member allowing the first cylindrical body to protrude from the housing, based on a second elastic restoring force provided by the second elastic member,
wherein the first elastic restoring force is greater than the second elastic restoring force.

11. The flexible display apparatus of claim 5 , wherein the housing comprises a stepped portion, wherein a first side of the stepped portion protrudes further to an outer side of the housing than a second side of the stepped portion.

12. The flexible display apparatus of claim 1 , wherein the third, elastic portion of the frame supports a portion of the third region of the display panel.

13. The flexible display apparatus of claim 12 , further comprising a stopper installed in the housing to restrain sliding of the display panel,
wherein the stopper is disposed in parallel with the third region of the display panel supported by the third, elastic portion of the frame, and wherein the stopper restrains sliding of the display panel.

14. An apparatus, comprising:
a housing;
an expandable frame having a first portion directly coupled to the housing, a second portion directly coupled to the first portion, wherein the second portion is elastically expandable, and a third portion directly coupled to the second portion; and
a flexible display panel including a first region, a second region adjacent to the first region, and a third region adjacent to the second region, wherein the third region is directly coupled to the third portion of the frame such that the second portion of the frame expands or contracts as the flexible display moves with respect to the housing.

15. The apparatus of claim 14 wherein the first region of the display at least partially overlays the first portion of the frame.

16. The apparatus of claim 14 wherein the second region of the display at least partially overlays the second portion of the frame.

17. The apparatus of claim 14 wherein the third region of the display at least partially overlays the third portion of the frame.

18. The apparatus of claim 14 wherein the first region of the display at least partially overlays a rear surface of the housing.

19. The apparatus of claim 14 wherein the third region of the display at least partially overlays a front surface of the housing.

Assignees

• Lg Display Co Ltd

Inventors

• Yoon Kyoung Sang

Classifications

• G06F1/1624

  with sliding enclosures, e.g. sliding keyboard or display · CPC title

• G06F1/1601

  Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64) · CPC title

• G09F9/301 Primary

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

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title

• G06F1/1652

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