Lamination device and lamination method

Patent metadata

Field	Value
Publication number	US-10486404-B2
Application number	US-201615511119-A
Country	US
Kind code	B2
Filing date	Apr 21, 2016
Priority date	May 6, 2015
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A lamination device and a lamination method for attaching a film layer onto a substrate are provided. The lamination device includes a platform configured to carry and deliver a substrate, a layer application member configured to apply the film layer onto a surface of the substrate, a first roller configured to roll on the substrate having the film layer to perform a smoothing and bubble-removing operation, a deformable layer arranged on the first roller and capable of being deformed to change a rolling dot pattern at an outer circumferential surface of the first roller, thereby to enable the rolling dot pattern to match the surface of the substrate, and an alignment mechanism configured to align the substrate with the first roller.

First claim

What is claimed is:

1. A lamination device for attaching a film layer onto a substrate, the lamination device comprising:
a platform configured to carry and deliver the substrate;
a layer application member configured to apply the film layer onto a surface of the substrate;
a first roller configured to roll on the substrate, after the film layer has been completely applied to the substrate, to perform a smoothing and bubble-removing operation, the first roller being a component different from the layer application member;
a deformable layer arranged on the first roller and capable of being deformed to change a rolling dot pattern at an outer circumferential surface of the first roller and thereby to enable the rolling dot pattern to match the surface of the substrate; and
an alignment mechanism configured to align the substrate with the first roller.

2. The lamination device according to claim 1 , further comprising an acquisition unit configured to acquire flatness information about the surface of the substrate and control the deformable layer to be deformed based on the flatness information.

3. The lamination device according to claim 2 , wherein the acquisition unit comprises:
a second roller configured to roll on the surface of the substrate prior to applying the film layer onto the substrate;
a pressure detection film arranged on an outer circumferential surface of the second roller, and configured to, when the second roller rolls on the surface of the substrate, detect a pressure between the second roller and the surface of the substrate, and generate a corresponding detection signal; and
a first control module configured to generate the flatness information based on the detection signal.

4. The lamination device according to claim 3 , wherein the pressure detection film comprises:
a first electrode arranged at the outer circumferential surface of the second roller;
a second electrode arranged opposite to the first electrode and overlapping the first electrode at a plurality of predetermined regions; and
a plurality of capacitive sensors arranged at the predetermined regions between the first electrode and the second electrode and configured to, when the second roller rolls on the surface of the substrate, convert the pressure between the second roller and the surface of the substrate at the corresponding predetermined region into a capacitance change value, and generate the corresponding detection signal,
wherein the first control module is further configured to generate the flatness information based on the detection signal and position information about the predetermined region where the capacitive sensor is located.

5. The lamination device according to claim 4 , wherein
the first electrode comprises a plurality of first electrode strips arranged circumferentially at intervals around the second roller, the second electrode comprises a plurality of second electrode strips perpendicularly intersecting the plurality of first electrode strips, and
a plurality of regions where the plurality of first electrode strips intersect the plurality of second electrode strips form the plurality of predetermined regions.

6. The lamination device according to claim 2 , wherein
the deformable layer comprises a piezoelectric deformable layer that is deformed under the effect of an applied voltage, and an electrode structure configured to apply a voltage signal to the piezoelectric deformable layer, and
the acquisition unit comprises a second control module configured to transmit a first voltage signal to the electrode structure based on the flatness information to enable the piezoelectric deformable layer to be deformed and thereby to enable the rolling dot pattern at the outer circumferential surface of the first roller to match the surface of the substrate.

7. The lamination device according to claim 6 , wherein the piezoelectric deformable layer comprises a piezoelectric deformable ceramic layer.

8. The lamination device according to claim 6 , wherein the acquisition unit comprises a third control module configured to transmit a second voltage signal to the electrode structure based on the flatness information about the surface of the substrate to enable the piezoelectric deformable layer to be deformed and thereby to restore the rolling dot pattern at the outer circumferential surface of the first roller to an initial state.

9. The lamination device according to claim 2 , further comprising a cleaning member configured to receive the flatness information about the surface of the substrate acquired by the acquisition unit, and clean the surface of the substrate in the event the flatness information is predetermined information.

10. The lamination device according to claim 1 , further comprising a glue application mechanism configured to, prior to applying the film layer onto the surface of the substrate, apply an adhesive layer onto the surface of the substrate.

11. A lamination method for attaching a film layer onto a substrate using a lamination device, wherein
the lamination device comprises:
a platform configured to carry and deliver the substrate;
a layer application member configured to apply the film layer onto a surface of the substrate;
a first roller configured to roll on the substrate, after the film layer has been completely applied to the substrate, to perform a smoothing and bubble-removing operation, the first roller being a component different from the layer application member;
a deformable layer arranged on the first roller and capable of being deformed to change a rolling dot pattern at an outer circumferential surface of the first roller and thereby to enable the rolling dot pattern to match the surface of the substrate; and
an alignment mechanism configured to align the substrate with the first roller, and

the lamination method comprises:
controlling the deformable layer to be deformed to change the rolling dot pattern at the outer circumferential surface of the first roller and thereby to enable the rolling dot pattern to match the surface of the substrate;
applying the film layer onto the surface of the substrate;
aligning the substrate with the first roller; and
controlling the first roller to roll on the surface of the substrate having the film layer to perform the smoothing and bubble-removing operation.

12. The lamination method according to claim 11 , wherein the controlling the deformable layer to be deformed to change the rolling dot pattern at the outer circumferential surface of the first roller and thereby to enable the rolling dot pattern to match the surface of the substrate comprises:
controlling an acquisition unit to acquire flatness information about the surface of the substrate and controlling the deformable layer to be deformed based on the flatness information.

13. The lamination method according to claim 12 , wherein the controlling an acquisition unit to acquire flatness information about the surface of the substrate comprises:
controlling a second roller to roll on the surface of the substrate, prior to applying the film layer onto the substrate;
detecting a pressure between the second roller and the surface of the substrate through a pressure detection film and generating a detection signal, when the second roller rolls on the surface of the substrate; and
generating, based on the detection signal, the flatness information through a first control module.

14. The lamination method according to claim 12 , wherein the controlling the deformable layer to be deformed based on the flatness information comprises:
controlling a second control module to transmit, bas

Assignees

• Boe Technology Group Co Ltd
• Hefei Boe Optoelectronics Tech

Inventors

• Jing Yangkun

Classifications

• H10P72/0616

  Monitoring of warpages, curvatures, damages, defects or the like · CPC title

• H10P72/53

  using optical controlling means · CPC title

• B32B37/0053 Primary

  Constructional details of laminating machines comprising rollers; Constructional features of the rollers · CPC title

• B32B2457/206

  Organic displays, e.g. OLED · CPC title

• B32B37/10

  characterised by the pressing technique, e.g. using action of vacuum or fluid pressure · CPC title