Display device

Patent metadata

Field	Value
Publication number	US-11823596-B2
Application number	US-201917789972-A
Country	US
Kind code	B2
Filing date	Dec 31, 2019
Priority date	Dec 31, 2019
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A display device is disclosed. The display device of the present disclosure comprises: a flexible display panel; a roller extending lengthily and configured such that the display panel is wound thereon or unwound therefrom; a first pipe extending lengthily in the lengthwise direction of the roller and positioned adjacent to the roller; a second pipe extending lengthily in the lengthwise direction of the roller, positioned adjacent to the roller, and facing the first pipe with respect to the roller; a first frame positioned adjacent to an end of the roller and through which at least one of the first pipe and the second pipe passes; and a first side cover facing the first frame and being coupled to an end of at least one passing through the first frame, between the first pipe and the second pipe.

First claim

What is claimed is:

1. A display device comprising:
a flexible display panel;
a roller that is elongated and is configured to wind up and unwind the display panel;
a first pipe extending in a lengthwise direction of the roller and positioned adjacent to the roller;
a second pipe extending in the lengthwise direction of the roller, positioned adjacent to the roller, and being opposite to the first pipe with respect to the roller;
a third pipe extending in the lengthwise direction of the roller and positioned adjacent to the roller between the first pipe and the second pipe;
a guide roller extending and being opposite to the third pipe with respect to the roller,
a first frame positioned adjacent to an end of the roller and through which at least one of the first pipe, the second pipe or the third pipe passes;
a first side cover facing the first frame and being coupled to an end of at least one of the first pipe, the second pipe or the third pipe passing through the first frame,
a second frame positioned adjacent to the other end of the roller and being opposite the first frame with respect to the roller; and
a second side cover facing the second frame and being coupled to the other end of at least one of the first pipe, the second pipe, or the third pipe which pass through the second frame.

2. The display device of claim 1 , further comprising an auxiliary pipe that is positioned between the second frame and the second side cover, contiguous to the guide roller, and is coupled to the second frame and the second side cover.

3. The display device of claim 1 , further comprising a module cover having a plurality of segments that extend in the lengthwise direction of the roller and are sequentially arranged in an upward-downward direction of the display panel on a rear surface of the display panel,
wherein the display panel and the module cover are wound around or unwound form the roller.

4. The display device of claim 1 , wherein the display panel moves down when unwound from the roller and moves up when wound around the roller.

5. A display device comprising:
a flexible display panel;
a roller elongated and configured to wind up and unwind the display panel;
a first pipe extending in a lengthwise direction of the roller and positioned adjacent to the roller;
a second pipe extending in the lengthwise direction of the roller, positioned adjacent to the roller, and being opposite to the first pipe with respect to the roller;
a first frame positioned adjacent to an end of the roller and through which at least one of the first pipe or the second pipe passes; and
a first side cover facing the first frame and being coupled to an end of the at least one of the first pipe or the second pipe passing through the first frame; and
wherein the first side cover includes a coupler coupled to the end of the at least one of the first pipe or the second pipe, and
wherein the coupler includes:
an outer cylinder formed on an inner surface of the first side cover, into which the end of the at least one of the first pipe or the second pipe is inserted; and
an inner insert protruding from the inner surface of the first side cover inside the outer cylinder, which is inserted into the at least one of the first pipe or the second pipe.

6. The display device of claim 5 , wherein the outer cylinder includes:
an outer surface;
a first inner surface extending in parallel to the outer surface from the inner surface of the first side cover; and
a second inner surface extending from the first inner surface to a distal end of the outer cylinder, with a slope with respect to the outer surface,
wherein the second inner surface becomes gradually closer to the outer surface toward the distal end of the outer cylinder.

7. The display device of claim 6 ,
wherein the coupler further includes a protrusion formed between the first inner surface and the second inner surface of the outer cylinder, and
wherein a pipe includes a neck positioned adjacent to the end of at least one of the first pipe or the second pipe and recessed from an outer surface of at least one of the first pipe or the second pipe, into which the protrusion is inserted.

8. The display device of claim 7 ,
wherein the pipe further comprises a press-fitting surface formed between the neck of the pipe and a distal end of the pipe, and
wherein the press-fitting surface is knurled.

9. The display device of claim 6 , wherein the inner insert includes:
a first outer surface spaced apart from the first inner surface and facing the first inner surface; and
a second outer surface facing the first inner surface and the second inner surface and sloping away from the first inner surfaced or the second inner surface.

10. The display device of claim 9 , wherein a distance between the first inner surface of the outer cylinder and the first outer surface of the inner insert is smaller than a distance between the first inner surface of the outer cylinder and the second outer surface of the inner insert.

11. The display device of claim 10 , wherein the distance between the first inner surface of the outer cylinder and the second outer surface of the inner insert is smaller than the distance between the second inner surface of the outer cylinder and the second outer surface of the inner insert.

Assignees

• Lg Electronics Inc

Inventors

• Pyo Jonggil

Classifications

• G09F9/301 Primary

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

• G06F1/1652

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

• G09F9/3023

  Segmented electronic displays · CPC title

• B65H75/34

  specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables (retractors for storing flexible hoses as accessories of dental work stands A61G15/18; vehicle safety belt retractors B60R22/34; hose-storing devices in apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or portable containers B67D7/40; clothes-line supports D06F53/00; spring drums for liftable blinds with horizontal lamellae E06B9/322; spring drums or tape drums for roll-type closures or roller blinds E06B9/56; hauling- or hoisting-chains with arrangements for holding electric cables, hoses or the like F16G13/16; devices for guiding pipes, cables or protective tubing, between relatively movable points, e.g. movable channels, F16L3/01; flexible rulers or tapes with scales G01B3/10; electrical features of stored material, see the relevant subclasses, e.g. H02G) · CPC title

• G06F1/1624

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