Package thin film and manufacturing method thereof, light emitting device, display panel and display device

Patent metadata

Field	Value
Publication number	US-2017104168-A1
Application number	US-201515038524-A
Country	US
Kind code	A1
Filing date	Oct 8, 2015
Priority date	May 28, 2015
Publication date	Apr 13, 2017
Grant date	—

Abstract

A package thin film and a manufacturing method thereof, a light emitting device, a display panel and a display device are provided. The package thin film may comprise: a nano material layer or a polycation organic material layer, a moisture absorption layer formed on the nano material layer or the polycation organic material layer, a sealing layer for sealing the nano material layer or the polycation organic material layer and the moisture absorption layer. The package structure provided by embodiments of the present invention is formed by alternate assembly of materials (the nano material layer or the polycation organic material layer and the moisture absorption layer) with different charges.

First claim

1 . A package thin film, comprising:
a nano material layer or a polycation organic material layer, a moisture absorption layer formed on the nano material layer or the polycation organic material layer, a sealing layer for sealing the nano material layer or the polycation organic material layer and the moisture absorption layer.

2 . The package thin film according to claim 1 , wherein the moisture absorption layer is a montmorillonite layer.

3 . The package thin film according to claim 1 , wherein the nano material layer or the polycation organic material layer and the moisture absorption layer are alternately stacked.

4 . The package thin film according to claim 1 , wherein the nano material layer is a nano particle layer or a nano fiber layer.

5 . The package thin film according to claims 1 , wherein the polycation organic material layer is a polyamine material layer.

6 . A method of manufacturing a package thin film, comprising the steps of:
performing pretreatment to a substrate, thereby a surface thereof being provided with positive charges or negative charges; immersing the pretreated substrate in a nano material solution with contrary charges with respect to those in the step S 1 ; taking out and drying the substrate to form a nano material layer or a polycation organic material layer attached on the substrate; immersing the substrate with the nano material layer or the polycation organic material layer in a moisture absorbent solution with charges contrary to the nano material solution; taking out and drying the substrate again to form a moisture absorption layer attached on the nano material layer or the polycation organic material layer; immersing the substrate in a sealant solution; taking out the substrate again so as to cure the sealant adhered to the nano material layer or the polycation organic material layer and the moisture absorption layer to form a sealing layer; and stripping the sealing layer from the substrate.

7 . The method of manufacturing a package thin film according to claim 6 , wherein the moisture absorbent solution is a montmorillonite solution.

8 . The method of manufacturing a package thin film according to claim 6 , wherein the moisture absorption layer is a montmorillonite layer.

9 . The method of manufacturing a package thin film according to claim 6 , wherein the immerging the pre-treated substrate in the nano material solution, taking out and drying, immersing the substrate in a moisture absorbant solution, and taking out and drying again are repeated for several times to form alternately stacked nano material layers or polycation organic material layers and moisture absorption layers.

10 . The method of manufacturing a package thin film according to claim 6 , wherein the nano material layer is a nano particle layer or a nano fiber layer.

11 . The method of manufacturing a package thin film according to claim 6 , wherein the polycation organic material layer is a polyamine material layer.

12 . An organic light emitting device packaged using package thin film manufactured by the method of manufacturing a package thin film as claimed in claim 6 .

13 . A display panel, comprising an the organic light emitting device as claimed in claim 12 .

14 . A display device, comprising the display panel as claimed in claim 13 .

15 . An organic light emitting device packaged using the package thin film as claimed in claim 1 .

16 . A display panel, comprising the organic light emitting device as claimed in claim 15 .

17 . A display device, comprising the display panel as claimed in claim 16 .

Assignees

• Boe Technology Group Co Ltd

Inventors

• Shi Shoulei
• Hung Hsiaowen

Classifications

• H10K71/40

  Thermal treatment, e.g. annealing in the presence of a solvent vapour · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K77/10

  Substrates, e.g. flexible substrates · CPC title

• H10K59/874 Primary

  including getter material or desiccant · CPC title

• H01L51/56

  Electricity · mapped topic