Organic el device and electronic apparatus

Patent metadata

Field	Value
Publication number	US-2016226018-A1
Application number	US-201615008645-A
Country	US
Kind code	A1
Filing date	Jan 28, 2016
Priority date	Feb 4, 2015
Publication date	Aug 4, 2016
Grant date	—

Abstract

An organic EL device includes an element substrate above which an organic EL element is provided; a counter substrate arranged so as to face the element substrate; a sealing layer arranged between the organic EL element and the counter substrate, and having at least a first sealing layer made from an inorganic material, a planarized second sealing layer, and a third sealing layer formed from an inorganic material; and a filler arranged between the sealing layer and the counter substrate, in which the counter substrate is arranged in a region spaced by a predetermined gap from any end portion of the element substrate, the filler is arranged so as to protrude to the gap from between the element substrate and the counter substrate, and the end portion of the second sealing layer is covered by the filler.

First claim

What is claimed is:

1 . An organic EL device, comprising:
a first substrate above which an organic EL element is provided; a second substrate arranged so as to face the first substrate; a sealing layer arranged between the organic EL element and the second substrate, and having at least a first sealing layer made from an inorganic material, a planarized second sealing layer, and a third sealing layer formed from an inorganic material; and a filler arranged between the sealing layer and the second substrate, wherein the second substrate is arranged in a region spaced by a predetermined gap from any end portion of the first substrate, the filler is arranged so as to protrude to the gap from between the first substrate and the second substrate, and the end portion of the second sealing layer is covered by the filler.

2 . The organic EL device according to claim 1 ,
wherein the end portion of the second sealing layer is arranged further to the inside than the end portion of the second substrate in plan view.

3 . The organic EL device according to claim 1 ,
wherein a distance from the end portion of the filler to the end portion of the second sealing layer is longer than the thickness of the filler between the second sealing layer and the second substrate.

4 . The organic EL device according to claim 1 ,
wherein the second substrate is formed with a taper to the outer edge of the side on which the filler is arranged.

5 . The organic EL device according to claim 4 ,
wherein the taper is formed at a position not overlapping the second sealing layer in plan view.

6 . The organic EL device according to claim 1 , further comprising;
a display region at a region that includes the organic EL element in plan view, wherein the distance from an edge of the display region to an end portion of the second sealing layer is longer than the distance from an end portion of the second sealing layer to the end portion of the second substrate.

7 . The organic EL device according to claim 1 ,
wherein a projection is provided on the third sealing layer and further to the outside than the second sealing layer in plan view.

8 . The organic EL device according to claim 7 ,
wherein the projection is formed by any material of a color filter, a barrier layer arranged between the color filters, and an overcoating layer.

9 . An organic EL device, comprising:
a first substrate above which an organic EL element is provided; a second substrate arranged so as to face the first substrate; a sealing layer arranged between the organic EL element and the second substrate, and having at least a first sealing layer made from an inorganic material, a planarized second sealing layer, and a third sealing layer formed from an inorganic material; and a filler arranged between the sealing layer and the second substrate, the filler having an end portion that extends away from the second substrate at least as far as does a region between an end portion of the first substrate and an end portion of the second substrate in a direction parallel to an upper surface of the first substrate, and the end portion of the second sealing layer is covered by the filler.

10 . An electronic apparatus comprising:
the organic EL device according to claim 1 .

11 . An electronic apparatus comprising:
the organic EL device according to claim 2 .

12 . An electronic apparatus comprising:
the organic EL device according to claim 3 .

13 . An electronic apparatus comprising:
the organic EL device according to claim 4 .

14 . An electronic apparatus comprising:
the organic EL device according to claim 5 .

15 . An electronic apparatus comprising:
the organic EL device according to claim 6 .

16 . An electronic apparatus comprising:
the organic EL device according to claim 7 .

17 . An electronic apparatus comprising:
the organic EL device according to claim 8 .

18 . An electronic apparatus comprising:
the organic EL device according to claim 9 .

Assignees

• Seiko Epson Corp

Inventors

• Akagawa Suguru
• Koshihara Takeshi

Classifications

• H10K59/871

  Self-supporting sealing arrangements · CPC title

• H10K50/8426

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K59/873 Primary

  Encapsulations · CPC title

• H01L2251/558

  Electricity · mapped topic

• H01L27/322

  Electricity · mapped topic