Display device

Patent metadata

Field	Value
Publication number	US-9722203-B2
Application number	US-201514809713-A
Country	US
Kind code	B2
Filing date	Jul 27, 2015
Priority date	Jul 28, 2014
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A display device includes a first substrate, a light emitting element located on the first substrate and including a pair of electrodes and one organic layer or a plurality of organic layers located between the pair of electrodes, a second substrate located to face the first substrate, a third substrate located on a surface of the second substrate opposite to a surface thereof facing the light emitting element, and a tacky layer located between the second substrate and the third substrate, a tack strength between the tacky layer and the second substrate or the third substrate being weaker than an adhesive strength between one of the pair of electrodes and the one organic layer or an adhesive strength between the plurality of organic layers.

First claim

What is claimed is:

1. A display device, comprising:
a first substrate;
a light emitting element located on the first substrate and including a pair of electrodes and one organic layer or a plurality of organic layers located between the pair of electrodes;
a second substrate located to face the first substrate;
a third substrate located on a surface of the second substrate opposite to a surface thereof facing the light emitting element;
a tacky layer located between the second substrate and the third substrate, a tack strength between the tacky layer and the second substrate or the third substrate being weaker than an adhesive strength between one of the pair of electrodes and the one organic layer or an adhesive strength between the plurality of organic layers, and
an adhesive layer between the second substrate and the third substrate so as to enclose the tacky layer.

2. The display device according to claim 1 , wherein the tacky layer is kept tacky after being peeled off.

3. The display device according to claim 1 , further comprising a touch sensor located on the third substrate.

4. A display device, comprising:
a first substrate;
a light emitting element located on the first substrate and including a pair of electrodes and one organic layer or a plurality of organic layers located between the pair of electrodes;
a second substrate located to face the first substrate;
a third substrate located on a surface of the first substrate opposite to a surface thereof having the light emitting element located thereon;
a first tacky layer located between the first substrate and the third substrate, a tack strength between the first tacky layer and the first substrate or the third substrate being weaker than an adhesive strength between one of the pair of electrodes and the one organic layer or an adhesive strength between the plurality of organic layers, and
a first adhesive layer between the first substrate and the third substrate so as to enclose the first tacky layer.

5. The display device according to claim 4 , wherein the first tacky layer is kept tacky after being peeled off.

6. The display device according to claim 4 , further comprising:
a fourth substrate located on a surface of the second substrate opposite to a surface thereof facing the light emitting element; and
a third tacky layer located between the second substrate and the fourth substrate.

7. The display device according to claim 6 , wherein the third tacky layer is kept tacky after being peeled off.

8. The display device according to claim 7 , wherein a tack strength between the third tacky layer and the second substrate or the fourth substrate is weaker than an adhesive strength between one of the pair of electrodes and the one organic layer or an adhesive strength between the plurality of organic layers.

9. The display device according to claim 8 , further comprising a third adhesive layer located between the second substrate and the fourth substrate so as to enclose the third tacky layer.

10. The display device according to claim 6 , further comprising a touch sensor located on the fourth substrate.

11. A display device, comprising:
a first substrate having a light emitting element located on a surface thereon, the light emitting element including a pair of electrodes and one organic layer or a plurality of organic layers located between the pair of electrodes;
a second substrate located to face the surface of the first substrate having the light emitting element located thereon;
a first tacky layer located between the first substrate and the second substrate and having a thickness of 10 μm or less, a tack strength between of the first tacky layer and the first substrate or the second substrate being weaker than an adhesive strength between one of the pair of electrodes and the one organic layer or an adhesive strength between the plurality of organic layers, and
a first adhesive layer between the first substrate and the second substrate so as to enclose the first tacky layer.

12. The display device according to claim 11 , wherein the first tacky layer is kept tacky after being peeled off.

13. The display device according to claim 11 , further comprising:
a third substrate located on a surface of the first substrate opposite to the surface thereof having the light emitting element located thereon; and
a second tacky layer located between the first substrate and the third substrate.

14. The display device according to claim 13 , wherein the second tacky layer is kept tacky after being peeled off.

15. The display device according to claim 14 , wherein a tack strength between the second tacky layer and the first substrate or the third substrate is weaker than an adhesive strength between one of the pair of electrodes and the one organic layer or an adhesive strength between the plurality of organic layers.

16. The display device according to claim 15 , further comprising a second adhesive layer located between the first substrate and the third substrate so as to enclose the second tacky layer.

Assignees

• Japan Display Inc

Inventors

• Nagata Tetsuya

Classifications

• H01L51/524 Primary

  Electricity · mapped topic

• H10K50/841

  Self-supporting sealing arrangements · CPC title

• H10K59/871 Primary

  Self-supporting sealing arrangements · CPC title