Display device

Patent metadata

Field	Value
Publication number	US-10111344-B2
Application number	US-201514939189-A
Country	US
Kind code	B2
Filing date	Nov 12, 2015
Priority date	Jul 7, 2015
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

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 housing;
a roller in the housing, the roller including a settling part formed inwardly from a peripheral surface of the roller;
a display unit including a display panel windable around the roller and a module cover covering a rear side of the display panel;
a driving unit winding or unwinding the display unit to the roller; and
a PCB in the roller.

2. The display device of claim 1 , further comprising:
an elastic piece disposed on the module cover in a minor axis direction of the display unit and supporting a part of the display unit,
wherein the part is an unwound portion from the roller.

3. The display device of claim 2 , wherein there are a plurality of elastic pieces, and the plurality of elastic pieces are spaced apart from each other.

4. The display device of claim 2 , wherein the elastic piece is bendable in a thickness direction of the display unit.

5. The display device of claim 2 , further comprising:
an elastic piece roller configured to wind and unwind the elastic piece within the housing; and
an insertion guide disposed where the elastic piece starts to be unwound from the elastic piece roller and configured to press both sides of the elastic piece so as to cause the elastic piece to be bent in a thickness direction of the display unit.

6. The display device of claim 5 , wherein the insertion guide comprises:
a jig composing a body of the insertion guide;
a pin member projected from a body of the jig toward a groove of the module cover, into which the elastic piece is inserted, so as to press the both ends of the elastic piece; and
a fixing member being spaced apart from the jig and disposed at a center of the groove so as to push a center of the elastic piece outward from the groove.

7. The display device of claim 3 , wherein the plurality of elastic pieces comprise a first elastic piece and a second elastic piece which are at an equal distance from a center of the module cover in a major axis direction.

8. The display device of claim 7 , wherein the plurality of elastic pieces further comprise a third elastic piece disposed between the first and second elastic pieces and in the center of the module cover.

9. The display device of claim 1 , wherein the module cover comprises a plurality of aprons, wherein at least a portion of a first apron is connected to a second apron.

10. The display device of claim 1 , further comprising:
a stand guide disposed proximate to the module cover, the display panel, and the housing.

11. The display device of claim 1 , wherein the driving unit comprises:
a motor assembly;
a pinion gear connected to the motor assembly through a chain and having a circumference in a toothed shape; and
a rack gear having a concave-convex pattern on the module cover.

12. The display device of claim 11 , wherein the driving unit comprises a plurality of rack gears, and the plurality of rack gears are at an equal distance from a center of the module cover in a major axis direction.

13. The display device of claim 11 , wherein the concave-convex pattern of the rack gear is engaged with teeth of the pinion gear.

14. The display device of claim 1 , wherein the PCB is a timing controller board.

15. The display device of claim 14 , further comprising:
a main board, and a power supply in the housing.

16. The display device of claim 1 , wherein at least part of the settling part is in contact with a source PCB disposed in a lower part of the display panel.

17. The display device of claim 14 , wherein the roller comprises:
a top part; and
a bottom part with the timing controller board mounted there between.

18. The display device of claim 1 , further comprising:
at least two more PCB's in addition to the at least one PCB, which collectively include a timing controller board, a main board, and a power supply,
wherein the timing controller board is connected to the main board and the power supply, both of which are disposed so that the display panel is between the main board and the power supply and the timing controller board in the first state, through a first wiring electrode and a second wiring electrode respectively, and
wherein the first wiring electrode and the second wiring electrode are wound multiple times.

19. The display device of claim 1 , further comprising:
at least two more PCB's in addition to the at least one PCB, which collectively include a timing controller board, a main board, and a power supply,
wherein the timing controller board comprises a timing controller and a board cover which covers the timing controller to prevent noise.

20. The display device of claim 1 , wherein the display panel comprises:
a first part wound around the roller and positioned in the housing; and
a second part unwound from the roller and positioned outside the housing.

Assignees

• Lg Electronics Inc

Inventors

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

Classifications

• H05K7/1427

  Housings · CPC title

• H05K5/0217

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

• G09F15/0062

  collapsible · CPC title

• H05K5/03

  Covers · CPC title

• H05K2201/051

  Rolled · CPC title