Organic light emitting display device

Patent metadata

Field	Value
Publication number	US-2017005293-A1
Application number	US-201615193870-A
Country	US
Kind code	A1
Filing date	Jun 27, 2016
Priority date	Jun 30, 2015
Publication date	Jan 5, 2017
Grant date	—

Abstract

Provided is an organic light emitting display device. The organic light emitting device includes: an organic light emitting element layer in an active area; and an encapsulation layer covering the organic light emitting element layer. The encapsulation layer includes one or more inorganic films and one or more organic films. The one or more inorganic films and the one or more organic films cover an entire active area and a part of an inactive area surrounding the active area. The one or more inorganic films are disposed only to a portion having a predetermined inward distance from an outermost periphery of the inactive area.

First claim

What is claimed is:

1 . An organic light emitting display device comprising:
an organic light emitting element layer in an active area; and an encapsulation layer covering the organic light emitting element layer, wherein the encapsulation layer includes one or more inorganic films and one or more organic films, the one or more inorganic films and the one or more organic films covering an entire active area and a part of an inactive area surrounding the active area, and the one or more inorganic films are disposed only at a portion having a predetermined inward distance from an outermost periphery of the inactive area.

2 . The organic light emitting display device according to claim 1 , wherein the one or more inorganic films are disposed in a first portion of the inactive area adjacent to the active area, and are not disposed in a second portion of the inactive area, and
the second portion is disposed with a predetermined inward width of an outermost periphery of the organic light emitting display device.

3 . The organic light emitting display device according to claim 1 , wherein the second portion has a predetermined width which is enough to minimize damage at an outermost periphery of the organic light emitting display device due to cutting.

4 . The organic light emitting display device according to claim 3 , wherein the second portion has an enough width to minimize damage applied to the organic light emitting display device by laser scribing.

5 . The organic light emitting display device according to claim 3 , wherein the second portion has the width of 150·m or more.

6 . The organic light emitting display device according to claim 4 , wherein the one or more inorganic films have a chamfered shape at one or more corners of the organic light emitting display device.

7 . The organic light emitting display device according to claim 6 , wherein the chamfered shape is at least one of a round shape, a square shape, and a stepped shape.

8 . The organic light emitting display device according to claim 6 , wherein the one or more inorganic films are formed of inorganic materials deposited using a mask including a shielding portion corresponding to a portion having a predetermined inward width from the outermost periphery of the organic light emitting display device and a passing portion corresponding to the active area and the inactive area except the shielding area.

9 . A multi-layer face seal structure including one or more inorganic films and one or more organic films,
wherein the one or more inorganic films are disposed only at a portion having a predetermined inward distance from an outermost periphery of an organic light emitting display device, said inward distance being sufficient to minimize damage potentially caused by cutting the outermost periphery.

10 . The multi-layer face seal structure according to claim 9 , wherein the one or more inorganic films is configured to minimize the occurrence and spreading of cracks caused by the cutting.

11 . The multi-layer face seal structure according to claim 10 , wherein the one or more inorganic films and the one or more organic films include a first inorganic film covering an upper surface of an organic light emitting element layer in an active area, a first organic film on the first inorganic film, and a second inorganic film on the first organic film and entirely covering the first organic film.

12 . The multi-layer face seal structure according to claim 11 , wherein the first inorganic film and the second inorganic film are formed of one or more materials among oxide, nitride, carbide-based metal.

13 . A manufacturing method of an organic light emitting display device, comprising:
depositing a first inorganic layer in an active area and in a first portion of an inactive area adjacent to the active area; coating a first organic layer on the first inorganic layer; curing the first organic layer; and depositing a second inorganic layer in the active area of an upper surface of the cured first organic layer and in the first portion of the inactive area, wherein the depositing of the first inorganic layer and the depositing of the second inorganic layer include depositing configuration materials of the first inorganic layer and the second inorganic layer using a mask including a shielding portion having a shielding area corresponding to a second portion of the inactive area except the first portion and a passing portion having a passing area corresponding to the active area and the first portion.

14 . The manufacturing method of an organic light emitting display device according to claim 13 , further comprising:
scribing along the second portion having a predetermined inward width from an outermost periphery of the organic light emitting display device.

Assignees

• Lg Display Co Ltd

Inventors

• Kim Byoungchul
• Choi Wonyeol
• Park Heesung

Classifications

• H10K59/8731 Primary

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

• H10K50/8445

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

• H01L51/56

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• H01L51/5256 Primary

  Electricity · mapped topic