Display device

Patent metadata

Field	Value
Publication number	US-9743542-B2
Application number	US-201615093206-A
Country	US
Kind code	B2
Filing date	Apr 7, 2016
Priority date	Nov 27, 2015
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A display device includes a housing; at least one roller positioned within the housing; a display portion including a display panel and a module cover; and at least one support connected to a top of the display portion and to raise or lower the display portion. The display panel and the module cover transition from a first state where the display panel and the module cover are wound around the at least one roller to a second state where the display panel and the module cover are unwound from the at least one roller, in contact with each other, and exposed out of the housing. The at least one support includes an upper link, one end portion of which is connected to the top portion of the display portion; a lower link, one end portion of which is positioned inside of the housing; and a hinge to connect the upper link and the lower link, the upper link and the lower link including first and second upper links and first and second lower links, respectively, which operate together with the hinge during the transition from the first state to the second state.

First claim

What is claimed is:

1. A display device comprising:
a housing;
at least one roller positioned within the housing;
a display portion comprising a display panel and a module cover; and
at least one support connected to a top portion of the display portion and to raise or lower the display portion,
wherein the display panel and the module cover transition from a first state where the display panel and the module cover are wound around the at least one roller to a second state where the display panel and the module cover are unwound from the at least one roller, in contact with each other, and exposed out of the housing, and
wherein the at least one support comprises:
an upper link, one end portion of which is connected to the top portion of the display portion;
a lower link, one end portion of which is positioned inside of the housing; and
a hinge to connect the upper link and the lower link,
wherein the upper link comprising first and second upper links and the lower link comprising first and second lower links operate together with the hinge during the transition from the first state to the second state.

2. The display device of claim 1 , further comprising a top bar, wherein the at least one support is connected to one end portion of the top bar where the upper link is connected to the top portion of the display portion through the top bar.

3. The display device of claim 2 , wherein an angle between the upper and lower links connected to one end portion of the top bar is equal to an angle between the upper and lower links connected to an opposite end portion of the top bar when the display portion transitions from the first state to the second state.

4. The display device of claim 1 , further comprising a motor assembly inside the housing,
wherein the lower link is connected to the motor assembly.

5. The display device of claim 1 , wherein the first lower link is positioned closer to a center portion of the display portion than the second lower link, and the first upper link is positioned closer to the center portion of the display portion than the second upper link when the display portion is in the second state.

6. The display device of claim 1 , wherein a hinge contact portion of the first upper link and the first lower link are in a shape of a gear which mesh with each other.

7. The display device of claim 1 , wherein an angle from a horizontal line passing between the first upper link and the first lower link (ground) to the first upper link and the angle from the ground to the first lower link are equal.

8. The display device of claim 1 , further comprising a motor assembly inside the housing,
wherein an angle between the upper link and the lower link changes when the motor assembly operates.

9. The display device of claim 1 , further comprising a motor assembly inside the housing,
wherein the distance between the first upper link and the second upper link changes when the motor assembly operates.

10. The display device of claim 1 , wherein the first upper link and the second upper link overlap at least partially in width, and the first lower link and the second lower link overlap at least partially in width.

11. The display device of claim 10 , further comprising a motor assembly inside the housing,
wherein an extent of the overlap between the first upper link and the second upper link and an extent of the overlap between the first lower link and the second lower link changes when the motor assembly operates.

12. The display device of claim 1 , wherein a vertical height of a portion of the hinge that is connected to the first upper link is different from a vertical height of a portion of the hinge that is connected to the second upper link.

13. The display device of claim 1 , wherein the module cover comprises a plurality of aprons, and at least two of the aprons are connected to one another.

14. The display device of claim 1 , wherein the display panel and the module cover are wound or unwound by two rollers.

15. The display device of claim 1 , wherein the at least one roller comprises:
a panel roller to wind or unwind the display panel; and
an apron roller to wind or unwind the module cover, in conjunction with the winding or unwinding of the display panel.

16. The display device of claim 15 , wherein the panel roller and the apron roller are positioned at a same side of the supports within the housing.

17. The display device of claim 16 , wherein the panel roller and the apron roller are positioned behind the supports within the housing.

18. The display device of claim 15 , wherein the panel roller and the apron roller are positioned at opposite sides of the supports within the housing.

19. The display device of claim 18 , wherein the panel roller is positioned in front of the supports within the housing, and the apron roller is positioned behind the supports within the housing.

20. The display device of claim 15 , wherein the at least one roller comprises a guide roller to space the module cover and the panel roller apart from each other.

Assignees

• Lg Electronics Inc

Inventors

• Heo Jinha
• Kim Dohyeon
• Ryu Inkeun

Classifications

• G06F1/1652 Primary

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

• G02F1/133305

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

• H05K5/0217 Primary

  Mechanical details of casings (covers, lids, hoods or members for covering apertures H05K5/03) · CPC title

• H05K1/028

  Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence) · 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