Display device and packaging method thereof, display apparatus

• US 10,658,618 B2
• Filed: 06/05/2018
• Issued: 05/19/2020
• Est. Priority Date: 09/30/2017
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Chongqing BOE Optoelectronics Technology Co., Ltd. (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Li, Zhiyong, Hu, Wei, Lin, Hui Che, Xie, Zhenmei, Liu, Jia, Liu, Dianxin
• Primary Examiner(s): Osorio, Ricardo
• Application Number:
  US15/997,929
• Publication Number:
  US 20190103586A1
• Time in Patent Office: 714 Days
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 59/874 including getter material or desiccant

Abstract

Embodiments of the present disclosure provide a display device, a packaging method thereof and a display apparatus. The display device includes a base substrate; and a light-emitting unit and a packaging unit sequentially disposed on the base substrate, the packaging unit includes a first packaging film layer, a second packaging film layer and a water-absorbing functional layer located between the first packaging film layer and the second packaging film layer; the water-absorbing functional layer is mainly formed of a self-healing material with water absorbability.

Claims

1. A display device, comprising a base substrate;

and a light-emitting unit and a packaging unit sequentially disposed on the base substrate;

the packaging unit comprising a first packaging film layer, a second packaging film layer as well as a plurality of water-absorbing functional layers and an organic film layer located between the first packaging film layer and the second packaging film layer, the water-absorbing functional layers at least comprising a first water-absorbing functional layer and a second water-absorbing functional layer;

the water-absorbing functional layer being mainly formed of a self-healing material with water absorbability, wherein

both of the first packaging film layer and the second packaging film layer are inorganic film layers;

the water-absorbing functional layer is arranged between every adjacent film layers in the packaging unit, the first water-absorbing functional layer is in direct contact with both of the first packaging film layer and the organic film layer, and the second water-absorbing functional layer is in direct contact with both of the second packaging film layer and the organic film layer, and wherein

the self-healing material with water absorbability of the water-absorbing functional layer comprises a composite material of konjac glucomannan, polyacrylamide and nano-clay.

2. The display device according to claim 1, wherein the organic film layer comprises a first organic film layer and a second organic film layer,

the water-absorbing functional layers further comprise a third water-absorbing functional layer, the third water-absorbing functional layer is located between the first organic film layer and the second organic film layer, and is in contact with both of the first organic film layer and the second organic film layer.

3. The display device according to claim 1, wherein the first packaging film layer is close to the light-emitting unit with respect to the second packaging film layer.

4. A display apparatus, comprising a display device,

the display device comprising:

a base substrate; and

a light-emitting unit and a packaging unit sequentially disposed on the base substrate;

the packaging unit comprising a first packaging film layer, a second packaging film layer as well as a plurality of water-absorbing functional layers and an organic film layer located between the first packaging film layer and the second packaging film layer, the water-absorbing functional layers at least comprising a first water-absorbing functional layer and a second water-absorbing functional layer;

the water-absorbing functional layer being mainly formed of a self-healing material with water absorbability, wherein

both of the first packaging film layer and the second packaging film layer are inorganic film layers;

the water-absorbing functional layer is arranged between every adjacent film layers in the packaging unit, the first water-absorbing functional layer is in direct contact with both of the first packaging film layer and the organic film layer, and the second water-absorbing functional layer is in direct contact with both of the second packaging film layer and the organic film layer, and wherein

the self-healing material with water absorbability of the water-absorbing functional layer comprises a composite material of konjac glucomannan, polyacrylamide and nano-clay.

5. The display apparatus according to claim 4, wherein the organic film layer comprises a first organic film layer and a second organic film layer,

the water-absorbing functional layers further comprise a third water-absorbing functional layer, the third water-absorbing functional layer is located between the first organic film layer and the second organic film layer, and is in contact with both of the first organic film layer and the second organic film layer.

6. The display apparatus according to claim 4, wherein the first packaging film layer is close to the light-emitting unit with respect to the second packaging film layer.

7. A packaging method of a display device, comprising:

forming a light-emitting unit on a base substrate;

forming a first packaging film layer on the base substrate having been formed with the light-emitting unit;

forming a plurality of water-absorbing functional layers mainly formed of a self-healing material with water absorbability and forming an organic film layer, on the base substrate having been formed with the first packaging film layer, the water-absorbing functional layers at least comprising a first water-absorbing functional layer and a second water-absorbing functional layer; and

forming a second packaging film layer on the base substrate having been formed with the water-absorbing functional layer, wherein

both of the first packaging film layer and the second packaging film layer are inorganic film layers;

the water-absorbing functional layer is arranged between every adjacent film layers in the packaging unit, the first water-absorbing functional layer is in direct contact with both of the first packaging film layer and the organic film layer, and the second water-absorbing functional layer is in direct contact with both of the second packaging film layer and the organic film layer, and wherein

the self-healing material with water absorbability of the water-absorbing functional layer comprises a composite material of konjac glucomannan, polyacrylamide and nano-clay.

8. The packaging method according to claim 7, wherein

forming the plurality of water-absorbing functional layers further comprises forming a third water-absorbing functional layer,

forming the organic film layer further comprises forming a first organic film layer and a second organic film layer, and wherein

the third water-absorbing functional layer is located between the first organic film layer and the second organic film layer, and is in contact with both of the first organic film layer and the second organic film layer.