Display device

Patent metadata

Field	Value
Publication number	US-9576510-B2
Application number	US-201414646188-A
Country	US
Kind code	B2
Filing date	Oct 31, 2014
Priority date	May 30, 2014
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

The present invention relates to the field of display technology, and particularly relates to a bendable flexible display device. The display device comprises a display screen, a back plate arranged on the back of the display screen, and a support, the back plate being arranged on the support, wherein the back plate is a spliced back plate, and the display screen is a flexible display screen; and the back plate allows the display screen to be converted between a curved display state and a flat display state. The display device can be converted between a curved display state and a flat display state, to implement various viewing modes and meet different demands of all kinds of people.

First claim

The invention claimed is:

1. A display device, comprising a display screen, a back plate arranged on a back of the display screen, and a support, the back plate being arranged on the support, wherein the back plate is a spliced back plate, and the display screen is a flexible display screen; and the back plate allows the display screen to be converted between a curved display state and a flat display state,
the display device is characterized in that the back plate comprises a central-axis sub-plate, intermediate sub-plates and border sub-plates; the central-axis sub-plate is arranged in a vertical central region of the display screen and connected with the support; the plurality of intermediate sub-plates are symmetrically distributed along a horizontal direction of the central-axis sub-plate about a vertical axis of the central-axis sub-plate as a symmetry axis; the border sub-plates are arranged on outer sides of the intermediate sub-plates away from the central-axis sub-plate; and the central-axis sub-plate, the plurality of intermediate sub-plates and the border sub-plates are movably connected.

2. The display device according to claim 1 , wherein horizontal position-limiting units are arranged on borders of adjacent sub-plates, among the central-axis sub-plate, the plurality of intermediate sub-plates and the border sub-plates, the horizontal position-limiting units comprising recesses, the recesses in the adjacent sub-plates being adapted to each other, and a gap being preset between inner walls of borders of every adjacent sub-plates;
and further, vertical position-limiting units are also arranged on adjacent borders, the vertical position-limiting units comprising protrusions that are formed on upper sides and/or lower sides of the adjacent borders respectively and are capable of clamping the adjacent borders.

3. The display device according to claim 2 , wherein outer edges of the borders provided with the recesses are configured with rounded angles.

4. The display device according to claim 3 , further comprising a front frame, a back cover and a seat, wherein the front frame is arranged on borders of the front side of the display screen and is in bonded connection with the display screen; and the back cover is located behind the support, and the back cover and the seat are connected to the central-axis sub-plate.

5. The display device according to claim 2 , further comprising a front frame, a back cover and a seat, wherein the front frame is arranged on borders of the front side of the display screen and is in bonded connection with the display screen; and the back cover is located behind the support, and the back cover and the seat are connected to the central-axis sub-plate.

6. The display device according to claim 1 , wherein the central-axis sub-plate, the intermediate sub-plates and the border sub-plates have the same heights in a vertical direction; the central-axis sub-plate, the intermediate sub-plates and the border sub-plates have the same thicknesses; and the central-axis sub-plate, the intermediate sub-plates and the border sub-plates have the same widths, or the width of the central-axis sub-plate is larger than the width of the intermediate sub-plates and the width of the border sub-plates.

7. The display device according to claim 6 , further comprising a front frame, a back cover and a seat, wherein the front frame is arranged on borders of the front side of the display screen and is in bonded connection with the display screen; and the back cover is located behind the support, and the back cover and the seat are connected to the central-axis sub-plate.

8. The display device according to claim 1 , wherein the central-axis sub-plate, the intermediate sub-plates and the border sub-plates are all formed by a carbon fiber material.

9. The display device according to claim 1 , further comprising a power module and a transmission module, wherein the transmission module is arranged on a back of the border sub-plates; the power module is arranged on the support, and a power output portion of the power module is in contact with the transmission module; and the power module drives the transmission module, and the transmission module drives borders of the back plate to move forward or backward.

10. The display device according to claim 9 , wherein the power module comprises motors, and the transmission module comprises a slide rail arranged on the back of the border sub-plates and sliding blocks sliding along the slide rail; and the motors are arranged in regions of the support corresponding to the border sub-plates, and output shafts of the motors are connected to the sliding blocks.

11. The display device according to claim 10 , wherein the motors are piston-type motors, and the extending direction of the slide rail is perpendicular to the vertical axis of the central-axis sub-plate.

12. The display device according to claim 1 , further comprising a shaping module, which is fixedly connected to the border sub-plates and movably connected to the central-axis sub-plate and the intermediate sub-plates respectively.

13. The display device according to claim 12 , wherein the shaping module comprises a chain or an elastic strip; an extending direction of the chain or the elastic strip is perpendicular to the vertical axis of the central-axis sub-plate; and the chain or the elastic strip is fixedly connected to the border sub-plates, and movably connected to the borders on both sides of the central-axis sub-plate and the intermediate sub-plates respectively.

14. The display device according to claim 1 , wherein the display screen is in bonded connection with the central-axis sub-plate, the intermediate sub-plates and the border sub-plates respectively.

15. The display device according to claim 14 , wherein middle vertical regions of the central-axis sub-plate, the intermediate sub-plates and the border sub-plates are provided with an adhesive respectively, and the display screen is connected to the central-axis sub-plate, the intermediate sub-plates and the border sub-plates through the adhesives respectively.

16. The display device according to claim 1 , further comprising a Tcon board, an SOC board, a power board and speakers, and the Tcon board, the SOC board, the power board and the speakers are arranged on the support.

17. The display device according to claim 1 , wherein the support is formed by a metal material, and the support is provided with reinforcing ribs on the back.

18. The display device according to claim 1 , further comprising a front frame, a back cover and a seat, wherein the front frame is arranged on borders of the front side of the display screen and is in bonded connection with the display screen; and the back cover is located behind the support, and the back cover and the seat are connected to the central-axis sub-plate.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Ren Yan
• Wang Zifeng

Classifications

• H05K5/0217

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

• G06F1/1652

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

• G09F9/301 Primary

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

• H05K5/03

  Covers · CPC title

• G06F1/1601

  Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays (constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64) · CPC title