Display device and driving device for display device

Patent metadata

Field	Value
Publication number	US-12031665-B2
Application number	US-202117537094-A
Country	US
Kind code	B2
Filing date	Nov 29, 2021
Priority date	Dec 9, 2020
Publication date	Jul 9, 2024
Grant date	Jul 9, 2024

Abstract

A display device includes a display panel, a module housing accommodating the display panel and including a rear cover, a first moving plate connected to the display panel and positioned at a first side of the display panel, a second moving plate connected to the rear cover of the module housing and positioned at a second side of the display panel, a first driving member for pulling up and down the first moving plate, and a second driving member for pulling up and down the second moving plate.

First claim

What is claimed is:

1. A display device comprising:
a display panel;
a first driving belt;
a second driving belt;
a module housing accommodating the display panel and including a rear cover;
a first moving plate accommodated in the module housing and including belt coupling portions on opposite sides of the module housing, the belt coupling portions being coupled to the first driving belt;
a second moving plate accommodated in the module housing and including a front surface coupled to moving members and a rear surface coupled to the rear cover of the module housing, the moving members being coupled to the second driving belt;
a first driving member configured to pull up and pull down the first moving plate and the display panel by winding or releasing the first driving belt;
a second driving member configured to pull up and pull down the second moving plate and the rear cover by winding or releasing the second driving belt;
a cover plate coupled to the module housing; and
a pair of support rollers supporting a front surface and a rear surface of the display panel, respectively, the pair of support rollers being coupled to the cover plate.

2. The display device according to claim 1 , further comprising a control printed circuit board fixed to the first moving plate,
wherein the display panel includes a source printed circuit board, and
wherein the control printed circuit board is connected to the source printed circuit board of the display panel via a flexible circuit film.

3. The display device according to claim 2 , further comprising:
a first fixed plate coupled to the module housing and the first driving member, and provided between a front cover of the module housing and the first moving plate.

4. The display device according to claim 3 , wherein the display device further comprises:
at least one elastic belt; and
at least one belt roller fixed to the first fixed plate,
wherein the at least one elastic belt includes a first end fixed to the first moving plate and a second end, opposite to the first end, fixed to the first fixed plate, and
wherein the at least one elastic belt is wound on the at least one belt roller and is rotatably supported by the at least one belt roller.

5. The display device according to claim 3 , further comprising:
a main board fixed to the first fixed plate;
a power board fixed to the first fixed plate and configured to supply power to the display panel; and
an image processor electrically mounted on the main board and connected to the control printed circuit board, the image processor being configured to supply a data signal and a control signal.

6. The display device according to claim 5 , further comprising:
a position sensor coupled to the first fixed plate, the position sensor being configured to sense a position of the display panel and transmit the position of the display panel to the main board,
wherein the main board is configured to control the display panel to an always-on-display mode in response to the display panel being moved to a preset position.

7. The display device according to claim 5 , wherein the display device further comprises:
a data cable connecting the main board and the control printed circuit board;
a power cable connecting the power board and the control printed circuit board; and
a cable penetrating member including a first end coupled to the first fixed plate and a second end coupled to the first moving plate, and
wherein the data cable and the power cable are mounted inside the cable penetrating member.

8. The display device according to claim 3 , wherein the first driving member comprises:
a first driving motor coupled to the first fixed plate;
a first driving gear driven by the first driving motor;
a first driven gear engaged with the first driving gear and rotated by the first driving gear;
a first driving pulley coupled coaxially to the first driven gear and configured to wind or release the first driving belt; and
first driven pulleys connected to the first driving pulley by the first driving belt and coupled to the first fixed plate.

9. The display device according to claim 8 , wherein the first driving member further comprises:
a pair of first guide bars fixed to the module housing, the pair of first guide bars being spaced apart from one another; and
a pair of first moving guides coupled the first moving plate and configured to be pulled up and pulled down along the pair of first guide bars, respectively.

10. The display device according to claim 9 , wherein the pair of first moving guides is coupled to the belt coupling portions, and
wherein winding or releasing of the first driving belt by the first driving member pulls up or pulls down the pair of first moving guides and the first moving plate, to pull up or pull down the display panel.

11. The display device according to claim 1 , further comprising: a second fixed plate coupled to the module housing and positioned opposite to the first fixed plate with respect to the display panel,
wherein the second driving member is provided between the rear cover of the module housing and the display panel.

12. The display device according to claim 11 , wherein the second fixed plate includes guide holes, each guide hole extending along a vertical axis of the display device,
wherein the second moving plate includes guide protrusions inserted into the guide holes, respectively, and
wherein the guide holes guide the second moving plate along the vertical axis of the display device.

13. The display device according to claim 12 , wherein the moving members are disposed on a front surface of the second fixed plate, and
wherein the guide protrusions of the second moving plate are coupled to the moving members, respectively, and are pulled up and pulled down with the moving members.

14. The display device according to claim 13 , wherein the second driving member comprises:
a second driving motor coupled to the second fixed plate;
a second driving gear driven by the second driving motor;
a second driven gear engaged with the second driving gear and rotated by the second driving gear;
a second driving pulley coupled coaxially to the second driven gear and configured to wind or release the second driving belt; and
second driven pulleys connected to the second driving pulley by the second driving belt and coupled to the second fixed plate.

15. The display device according to claim 14 , wherein the second driving member pair of second further comprises: a guide bars fixed to the module housing, the pair of second guide bars being spaced apart from one another, and
wherein the moving members are coupled to the second moving plate and are pulled up and pulled down along the second guide bars, respectively.

16. The display device according to claim 11 , wherein the rear cover includes magnet plates disposed along a vertical direction of the display device, and
wherein an upper portion of the second fixed plate includes magnets positioned at locations correspondingly to the magnet plates, respectively.

17. The display device according to claim 16 , wherein the upper portion of the second fixed plate further includes cover support rollers configured to roll against a front surface of the rear cover when the rear cover is pulled up and pulled down to support the rear cover.

18. The display device according to claim 1 , wherein the module housing is fixed inside of a main housing, and
wherein the display panel and the rear cover are pulled up to the upper portion of the main housing or p

Assignees

• Lg Display Co Ltd

Inventors

• Seol Seungwon
• Park Jongyoung
• Jung Hyojin

Classifications

• F16M11/30

  with co-moving side-struts · CPC title

• A47C21/003

  Lighting, radio, telephone or the like connected to the bedstead · CPC title

• H02K7/1004

  with pulleys · CPC title

• H02K7/116

  with gears · CPC title

• F16M11/2092

  comprising means allowing depth adjustment, i.e. forward-backward translation of the head relatively to the undercarriage · CPC title