Sealant curing device and packaging method

Patent metadata

Field	Value
Publication number	US-9897829-B2
Application number	US-201615135102-A
Country	US
Kind code	B2
Filing date	Apr 21, 2016
Priority date	Jun 17, 2015
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

The present disclosure provides a sealant curing device and a packaging method. The sealant curing device includes a bearing platform on which a display panel is placed, and a light conversion layer arranged on the bearing platform and configured to convert a light beam at a first wavelength into a light beam at a second wavelength. The light beam at the first wavelength is one of a UV light beam and an IR light beam, and the light beam at the second wavelength is the other one of the UV light beam and the IR light beam.

First claim

What is claimed is:

1. A sealant curing device, comprising:
a bearing platform for supporting a display panel comprising a color filter substrate, an array substrate and a sealant layer between the color filter substrate and the array substrate;
a light source configured to emit a light beam at a first wavelength;
a light conversion layer supported above the bearing platform and configured to convert the light beam at the first wavelength into a light beam at a second wavelength to cure sealant in the sealant layer with the light beams at both the first wavelength and the second wavelength, and
a light reflection layer arranged between the light conversion layer and the bearing platform, wherein the display panel is placeable on the light conversion layer,
wherein the light beam at the first wavelength is an UV light beam, the light beam at the second wavelength is an IR light beam, and the light conversion layer is made of CdS, CdSe, CdTe or ZnSe.

2. The sealant curing device according to claim 1 , wherein the first wavelength is 200 nm to 300 nm.

3. The sealant curing device according to claim 1 , wherein when the display panel is supported on the bearing platform, the light conversion layer completely covers a projection of a sealant layer in the display panel onto the bearing platform.

4. The sealant curing device according to claim 1 , wherein the light conversion layer covers at least a part of a surface of the bearing platform.

5. The sealant curing device according to claim 1 , wherein a size and a shape of the light conversion layer are set in accordance with a size and a shape of a sealant layer in the display panel.

6. The sealant curing device according to claim 5 , wherein the light conversion layer is of an annular structure corresponding to the sealant layer.

7. A packaging method, comprising steps of:
placing, by a user, the display panel onto the bearing platform of the sealant curing device according to claim 1 in such a manner that the sealant layer of the display panel is exactly aligned with the light conversion layer; and
irradiating, by the light source, the sealant layer of the display panel with the light beam at the first wavelength at a side of the display panel away from the bearing platform,
converting, by the light conversion layer, the light beam at the first wavelength passing through the sealant layer into the light beam at the second wavelength, and
reflecting, by the light reflection layer, the light beam at the second wavelength toward the sealant layer.

8. The packaging method according to claim 7 , wherein the sealant layer in the display panel has a thickness of 3 μm to 6 μm.

9. The packaging method according to claim 7 , wherein when the display panel is supported on the bearing platform, the light conversion layer completely covers a projection of the sealant layer in the display panel onto the bearing platform.

10. The packaging method according to claim 7 , wherein the light conversion layer covers at least a part of a surface of the bearing platform.

11. The packaging method according to claim 7 , wherein a size and a shape of the light conversion layer are set in accordance with a size and a shape of the sealant layer in the display panel.

12. The packaging method according to claim 11 , wherein the light conversion layer is of an annular structure corresponding to the sealant layer.

13. A sealant curing device, comprising:
a bearing platform for supporting a display panel comprising a color filter substrate, an array substrate and a sealant layer between the color filter substrate and the array substrate;
a light source configured to emit a light beam at a first wavelength;
a light conversion layer supported above the bearing platform and configured to convert the light beam at the first wavelength into a light beam at a second wavelength to cure sealant in the sealant layer with the light beams at both the first wavelength and the second wavelength, and
a light reflection layer arranged between the light conversion layer and the bearing platform, wherein the display panel is placeable on the light conversion layer,
wherein the light beam at the first wavelength is the IR light beam, the light beam at the second wavelength is the UV light beam, and the light convention layer is made of an up-conversion light-emitting material, and the up-conversion light-emitting material is one selected from the group consisting of NaYF 4 :Yb, Tm; NaYF 4 :Er, Yb; YF 3 :Yb 3+ , Tm 3+ ; and CaF 2 (Er 3+ ).

14. The sealant curing device according to claim 13 , wherein the first wavelength is 600 nm to 1000 nm.

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Jiang Liangliang
• Zhang Bo
• Tan Cong
• Zhan Chengyong

Classifications

• G02F1/1303 Primary

  Apparatus specially adapted to the manufacture of LCDs · CPC title

• G02F1/1339

  Gaskets; Spacers; Sealing of cells · CPC title