Display panel, manufacturing method thereof, and display device

• US 9,614,185 B2
• Filed: 01/20/2015
• Issued: 04/04/2017
• Est. Priority Date: 09/01/2014
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Sun, Tao, Wang, Tao, Zhang, Song
• Primary Examiner(s): DIALLO, MAMADOU L
• Application Number:
  US14/768,251
• Publication Number:
  US 20160254489A1
• Time in Patent Office: 805 Days
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 59/8731 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass

Abstract

The present invention provides a display panel, a manufacturing method thereof and a display device. The display panel comprises a first substrate, a display component provided on the first substrate, and a packaging structure for packaging the display component on the first substrate, wherein the packaging structure includes at least two first water blocking layers and at least one planarization layer that are stacked alternately above the display component, each first water blocking layer includes a plurality of first areas and a plurality of second areas, and joint lines between the first areas and the second areas in any two first water blocking layers are staggered with each other.

Claims

1. A display panel, comprising a first substrate, a display component provided on the first substrate, and a packaging structure for packaging the display component on the first substrate, wherein the packaging structure includes at least two first water blocking layers and at least one planarization layer that are stacked alternately above the display component, each first water blocking layer includes a plurality of first areas and a plurality of second areas, and joint lines between the first areas and the second areas in any two first water blocking layers are staggered with each other;

and wherein,

in each first water blocking layer, the plurality of first areas and the plurality of second areas are arranged alternately in both row and column directions.

2. The display panel according to claim 1, wherein, for any two adjacent first water blocking layers, area of the first water blocking layer away from the display component is larger than that of the first water blocking layer close to the display component.

3. The display panel according to claim 1, wherein, for any planarization layer and first water blocking layer that are adjacent to each other, area of the planarization layer away from the display component is larger than that of the first water blocking layer close to the display component;

area of the planarization layer close to the display component is smaller than that of the first water blocking layer away from the display component.

4. The display panel according to claim 1, wherein, thickness of the planarization layer is larger than that of the first water blocking layer adjacent thereto.

5. The display panel according to claim 1, wherein, the first water blocking layer is made of an inorganic material, and the planarization layer is made of an organic material.

6. The display panel according to claim 5, wherein, the packaging structure further includes at least one second water blocking layer, which is stacked over the display component and is made of an inorganic material.

7. The display panel according to claim 6, wherein, each second water blocking layer is an integral film layer and covers all of the joint lines in the first water blocking layer adjacent thereto.

8. The display panel according to claim 7, wherein, at least one second water blocking layer is provided as the outermost layer of the packaging structure.

9. A display device, comprising a display panel, which comprises a first substrate, a display component provided on the first substrate, and a packaging structure for packaging the display component on the first substrate, wherein the packaging structure includes at least two first water blocking layers and at least one planarization layer that are stacked alternately above the display component, each first water blocking layer includes a plurality of first areas and a plurality of second areas, and joint lines between the first areas and the second areas in any two first water blocking layers are staggered with each other;

and wherein,

in each first water blocking layer, the plurality of first areas and the plurality of second areas are arranged alternately in both row and column directions.

10. The display device according to claim 9, wherein, for any two adjacent first water blocking layers, area of the first water blocking layer away from the display component is larger than that of the first water blocking layer close to the display component.

11. The display device according to claim 9, wherein, for any planarization layer and first water blocking layer that are adjacent to each other, area of the planarization layer away from the display component is larger than that of the first water blocking layer close to the display component;

area of the planarization layer close to the display component is smaller than that of the first water blocking layer away from the display component.

12. The display device according to claim 9, wherein, thickness of the planarization layer is larger than that of the first water blocking layer adjacent thereto.

13. The display device according to claim 9, wherein, the first water blocking layer is made of an inorganic material, and the planarization layer is made of an organic material.

14. The display device according to claim 13, wherein, the packaging structure further includes at least one second water blocking layer, which is stacked over the display component and is made of an inorganic material.

15. The display device according to claim 14, wherein, each second water blocking layer is an integral film layer and covers all of the joint lines in the first water blocking layer adjacent thereto.

16. The display device according to claim 15, wherein, at least one second water blocking layer is provided as the outermost layer of the packaging structure.

17. A manufacturing method of a display panel, comprising steps of:

forming a display component on a first substrate; and

forming a packaging structure above the display component,

wherein the step of forming the packaging structure above the display component includes;

forming at least two first water blocking layers and at least one planarization layer that are alternately formed above the display component, each first water blocking layer includes a plurality of first areas and a plurality of second areas, and joint lines between the first areas and the second areas in any two first water blocking layers are staggered with each other; and

in each first water blocking layer, the plurality of first areas and the plurality of second areas are arranged alternately in both row and column directions.

18. The manufacturing method of a display panel according to claim 17, wherein, forming the first water blocking layers specifically includes:

step S1;

arranging a first mask plate provided with first area patterns, with the first area patterns corresponding to areas where the plurality of first areas are to be formed;

step S2;

forming the plurality of first areas of the first water blocking layer by way of deposition;

step S3;

arranging a second mask plate provided with second area patterns, with the second area patterns corresponding to areas where the plurality of second areas are to be formed; and

step S4;

forming the plurality of second areas of the first water blocking layer by way of deposition.

19. The manufacturing method of a display panel according to claim 18, wherein, the first areas and the second areas are formed by way of physical sputter deposition or chemical vapor deposition.

20. The manufacturing method of a display panel according to claim 18, wherein, forming the planarization layer specifically includes:

step S5;

arranging a third mask plate provided with a planarization layer pattern, with the planarization layer pattern corresponding to an area where the planarization layer is to be formed;

step S6;

forming the planarization layer by way of coating, printing or chemical vapor deposition; and

step S7;

curing the planarization layer by heating or irradiating with LED blue light.