Display device

Patent metadata

Field	Value
Publication number	US-11246227-B2
Application number	US-202016775673-A
Country	US
Kind code	B2
Filing date	Jan 29, 2020
Priority date	Jul 7, 2015
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

A display device that includes a housing with at least one Printed Circuit Board (PCB) and a plurality of rollers disposed in the housing. The display device also includes a display unit which, in turn, includes a display panel and a module cover. The display device further includes a driving unit that is connected to the display panel and the module cover. The driving unit moves the display panel and the module cover between a first state and a second state. In the first state, the panel and module cover are wound around at least one of the plurality of rollers, and in the second state they are unwound from the at least one of the plurality of rollers and exposed by being drawn out from the housing.

First claim

What is claimed is:

1. A display device comprising:
a display panel;
a housing for protecting the display panel;
a module positioned at a rear surface of the display panel;
a supporter coupled to the module so as to support the module;
a first gear positioned on the module; and
a motor generating rotational motions to transfer a force to the first gear,
wherein the display panel extends from an inside of the housing, and
wherein the module includes a groove for inserting the supporter, further comprising:
a guide for guiding the supporter to be inserted into the groove of the module,
wherein the guide comprises:
a jig composing a body of the guide;
a pin member projected from a body of the jig toward a center of the groove; and
a fixing member spaced apart from the pin member to push a center of the supporter from the groove.

2. The display device of claim 1 , wherein the display device comprising a plurality of modules positioned at a rear surface of the display panel,
wherein the plurality of modules are connected to form a cover to cover the rear surface of the display panel.

3. The display device of claim 2 , further comprising:
a second gear connecting the motor,
wherein the first gear and the second gear are engaged with each other.

4. The display device of claim 3 , wherein the second gear have a circumference in a toothed shape.

5. The display device of claim 4 , wherein the first gear is a concave-convex pattern on the module,
wherein the concave-convex pattern of the first gear is engaged with teeth of the second gear.

6. The display device of claim 3 , wherein the first gear transforms rotational motions transferred by the second gear into horizontal motions.

7. The display device of claim 3 , further comprising:
an assist roller pressing the cover so as to cause the first gear and the second gear to be engaged with each other.

8. The display device of claim 7 , wherein the assist roller is disposed opposite to the second gear by reference to the cover.

9. The display device of claim 3 , wherein the second gear is connected to the motor through a chain.

10. The display device of claim 2 , wherein the first gear is arranged along with a center of the cover.

11. The display device of claim 1 , wherein the first gear is a concave-convex pattern on the module.

12. The display device of claim 1 , wherein the first gear is disposed adjacent to the supporter.

13. The display device of claim 1 , further comprising:
an assist clip disposed on a bottom surface of the groove.

14. The display device of claim 1 , wherein when the supporter penetrates the guide, a center of the supporter is pushed out from the groove and both ends of the supporter is pressed against a bottom surface of the groove.

15. The display device of claim 1 , wherein the supporter is bent in the thickness direction of the cover.

16. The display device of claim 1 , wherein the jig is symmetric by reference to the groove in a major axis direction of the cover.

Assignees

• Lg Electronics Inc

Inventors

• Han Jihoon
• Kang Kitae
• Heo Jinha
• Kim Dohyeon
• Ryu Hyunjong
• Kim Jaeho
• Ryu Inkeun
• Choi Namhyeon

Classifications

• G09F9/301 Primary

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

• H05K5/0217

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

• H05K7/1427

  Housings · CPC title

• H05K1/028

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

• H05K2201/051

  Rolled · CPC title