Curved screen attaching device and attaching method using the same

Patent metadata

Field	Value
Publication number	US-10418570-B2
Application number	US-201715566744-A
Country	US
Kind code	B2
Filing date	May 3, 2017
Priority date	Mar 30, 2017
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A curved screen attaching device is provided for achieving an attachment between a flexible display layer and a curved cover, and includes: a base platform formed with a curved surface on an upper surface thereof; a magnet layer provided on a bottom of the curved surface and having a plurality of strip-type magnetic field generators disposed independent of each other; an attaching roller magnetically attracted to and moved on the curved surface to process a roll forming on the flexible display layer; and a controller configured to control the strip-type magnetic field generators to be switched on or off to form a moving magnetic field to guide and move the attaching roller.

First claim

What is claimed is:

1. A curved screen attaching device configured to achieve an attachment between a flexible display layer and a curved cover, comprising:
a base platform formed with a curved surface on an upper surface thereof, wherein a curvature of the curved surface is matched with that of the curved cover, so as to fit the curved cover;
a magnet layer attached on all regions of a bottom of the curved surface, and configured to cause the curved surface to produce a magnetic field attraction, wherein the magnet layer includes a plurality of strip-type magnetic field generators which are disposed independent of each other;
each of the strip-type magnetic field generators is parallel to each other;
and the strip-type magnetic field generators are closely arranged along a bending direction of the curved surface;
an attaching roller magnetically attracted to and moved on the curved surface, and configured to process a roll forming on the flexible display layer; and
a controller configured to control each of the strip-type magnetic field generators to be switched on or off in order along the bending direction of the curved surface, wherein when a next strip-type magnetic field generator of the strip-type magnetic field generators is switched on, a previous strip-type magnetic field generator thereof is switched off, so as to form a moving magnetic field to guide and move the attaching roller;
wherein an input electric current of one of the strip-type magnetic field generators located at a greater curvature portion of the curved surface is set greater than that of one of the strip-type magnetic field generators located at a smaller curvature portion of the curved surface.

2. The curved screen attaching device according to claim 1 , wherein a length of the attaching roller is greater than or equal to a minimum width of the base platform.

3. The curved screen attaching device according to claim 2 , wherein limiting stoppers are disposed at two ends of the attaching roller, and an edge of the limiting stopper are extended out of the attaching roller.

4. The curved screen attaching device according to claim 3 , wherein the limiting stopper is a circular sheet; the circle center of the limiting stopper matches with that of an end surface of the attaching roller; and a diameter of the limiting stopper is greater than that of the end surface of the attaching roller.

5. The curved screen attaching device according to claim 1 , wherein a width of the strip-type magnetic field generator located at the greater curvature portion of the curved surface is set smaller than that of the strip-type magnetic field generator located at the smaller curvature portion of the curved surface.

6. The curved screen attaching device according to claim 1 , wherein the attaching roller is a metal roller, and a surface of the attaching roller is adhered with a silica gel layer.

7. The curved screen attaching device according to claim 1 , wherein an end surface of the attaching roller is polygonal.

8. A curved screen attaching device configured to achieve an attachment between a flexible display layer and a curved cover, comprising:
a base platform formed with a curved surface on an upper surface thereof, wherein a curvature of the curved surface is matched with that of the curved cover, so as to fit the curved cover;
a magnet layer attaching on all regions of a bottom of the curved surface, and configured to cause the curved surface to produce a magnetic field attraction, wherein the magnet layer includes a plurality of strip-type magnetic field generators, which are disposed independent of each other;
each of the strip-type magnetic field generators is parallel to each other;
and the strip-type magnetic field generators are closely arranged along a bending direction of the curved surface;
an attaching roller magnetically attracted to and moved on the curved surface, and configured to process a roll forming on the flexible display layer; and
a controller configured to control each of the strip-type magnetic field generators to be switched on or off in order along the bending direction of the curved surface, wherein when a next strip-type magnetic field generator of the strip-type magnetic field generators is switched on, a previous strip-type magnetic field generator thereof is switched off, so as to form a moving magnetic field to guide and move the attaching roller.

9. The curved screen attaching device according to claim 8 , wherein a length of the attaching roller is greater than or equal to a minimum width of the base platform.

10. The curved screen attaching device according to claim 9 , wherein limiting stoppers are disposed at two ends of the attaching roller, and an edge of the limiting stopper are extended out of the attaching roller.

11. The curved screen attaching device according to claim 10 , wherein the limiting stopper is a circular sheet; the circle center of the limiting stopper matches with that of an end surface of the attaching roller; and a diameter of the limiting stopper is greater than that of the end surface of the attaching roller.

12. The curved screen attaching device according to claim 8 , wherein a width of one of the strip-type magnetic field generators located at a greater curvature portion of the curved surface is set smaller than that of one of the strip-type magnetic field generators located at a smaller curvature portion of the curved surface.

13. The curved screen attaching device according to claim 8 , wherein the attaching roller is a metal roller, and a surface of the attaching roller is adhered with a silica gel layer.

14. The curved screen attaching device according to claim 8 , wherein an end surface of the attaching roller is polygonal.

15. An attaching method of a curved screen, using the curved screen attaching device according to claim 9 , and comprising steps of:
putting the curved cover on the curved surface of the base platform, wherein the curved cover is attached to the curved surface;
putting the flexible display layer on a surface of the curved cover;
putting the attaching roller on the surface of the flexible display layer close to a middle position of the flexible display layer;
using the controller to switch on a first one of the strip-type magnetic field generators under the attaching roller, and then switching on a second one of the strip-type magnetic field generators adjacent to the first one while switching the previous first one strip-type magnetic field generator off; and
moving the attaching roller through all regions of the flexible display layer to finish the attachment.

16. The attaching method according to claim 15 , wherein the step of moving the attaching roller through all regions of the flexible display layer includes steps of: using the controller to control and roll the attaching roller firstly from the middle position to one end of the flexible display layer, and then rolling the attaching roller from the one end of the flexible display layer to an opposite end of the flexible display layer.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Wang Jianbo

Classifications

• G06F1/1652

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

• G03B21/58

  collapsible, e.g. foldable; of variable area · 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

• H01F1/117

  Flexible bodies · CPC title

• G06F1/1616

  with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position · CPC title