IP Library › Granted Patent US 8,044,582
Granted Patent B2
US 8,044,582 · App. 12/307,947 · Granted Oct 25, 2011

Organic display apparatus comprising moisture propagation preventing means

Assignee: Canon Kabushiki Kaisha
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Quick Facts
Patent No.
US 8,044,582
App. No.
12/307,947
Granted
Oct 25, 2011
Kind
B2
Abstract

Provided is a display apparatus including: a substrate; plural thin film transistors formed on the substrate; a planarizing layer covering the plural thin film transistors; plural organic light emitting devices formed on the planarizing layer to form a display area; and plural nondisplay devices formed on the planarizing layer outside the display area. The organic light emitting devices each have a first electrode, an organic compound layer, and a second electrode on the substrate in the stated order. In the display apparatus, in each of the plural nondisplay devices, the discontinuous part of the planarizing layer is formed.

Claims (32)

1. A display apparatus comprising:

a substrate;

plural thin film transistors formed on the substrate;

a planarizing layer covering the plural thin film transistors;

plural organic light emitting devices formed on the planarizing layer, the organic light emitting devices each having a first electrode, an organic compound layer, and a second electrode on the substrate in a stated order, and the plural organic light emitting devices forming a display area; and

plural non-light emitting devices formed on the planarizing layer outside the display area, the plural non-light emitting devices each having a discontinuous part of the planarizing layer formed in the device,

wherein the discontinuous part is formed in a continuous manner to straddle the plural non-light emitting devices.

2. The display apparatus according to claim 1 , wherein the discontinuous part comprises a portion where the planarizing layer is not formed.

3. The display apparatus according to claim 1 , wherein the discontinuous part surrounds an outer periphery of the display area.

4. The display apparatus according to claim 1 , wherein:

the plural non-light emitting devices each have a third electrode formed on the substrate and the second electrode extending from the display area; and

a film formation edge of the organic compound layer is closer to the display area than each of the non-light emitting devices, and, in each of the non-light emitting devices, the third electrode and the second electrode are in contact with each other.

5. The display apparatus according to claim 1 , wherein:

the plural non-light emitting devices each have a third electrode formed on the substrate, and the organic compound layer and the second electrode extending from the display area; and

the discontinuous part of the planarizing layer has a step height of 1 μm or more.

6. The display apparatus according to claim 1 , wherein the thin film transistors are formed over a range from lower portions of the organic light emitting devices to lower portions of the non-light emitting devices.

7. A display apparatus comprising:

a substrate;

plural thin film transistors formed on the substrate;

a planarizing layer covering the plural thin film transistors;

plural organic light emitting devices formed on the planarizing layer, the organic light emitting devices each having a first electrode, an organic compound layer, and a second electrode on the substrate in a stated order, and the plural organic light emitting devices forming a display area; and

plural non-light emitting devices formed on the planarizing layer outside the display area, the plural non-light emitting devices each having a discontinuous part of the planarizing layer formed in the device,

wherein the discontinuous part comprises a portion at which a thickness of the planarizing layer is smaller than the thickness of the planarizing layer at any other portion.

8. The display apparatus according to claim 7 , wherein the discontinuous part comprises a portion where the planarizing layer is not formed.

9. The display apparatus according to claim 7 , wherein the discontinuous part surrounds an outer periphery of the display area.

10. The display apparatus according to claim 7 , wherein:

the plural non-light emitting devices each have a third electrode formed on the substrate and the second electrode extending from the display area; and

a film formation edge of the organic compound layer is closer to the display area than each of the non-light emitting devices, and, in each of the non-light emitting devices, the third electrode and the second electrode are in contact with each other.

11. The display apparatus according to claim 7 , wherein:

the plural non-light emitting devices each have a third electrode formed on the substrate, and the organic compound layer and the second electrode extending from the display area; and

the discontinuous part of the planarizing layer has a step height of 1 μm or more.

12. The display apparatus according to claim 7 , wherein the transistors are formed over a range from lower portions of the organic light emitting devices to lower portions of the non-light emitting devices.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 27, 2009
From: TAKATA, KENJI; MIMURA, TOSHIHIKO
To: CANON KABUSHIKI KAISHA
Reel/Frame 022157/0785 →
Priority Claims (2)
JP 2006-196430 · Jul 19, 2006 · national
JP 2007-165844 · Jun 25, 2007 · national
Continuity (1)
Related Publication 20090309489A1 · Dec 17, 2009