IP Library Granted Patent US 7,355,342
Granted Patent B2
US 7,355,342 · App. 11/354,150 · Granted Apr 8, 2008

Organic EL device and electronic apparatus capable of preventing a short circuit

Assignee: Seiko Epson Corporation
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Quick Facts
Patent No.
US 7,355,342
App. No.
11/354,150
Granted
Apr 8, 2008
Kind
B2
Abstract

An organic EL device includes first electrodes, wiring lines that drive the first electrode, second electrodes that each has a high resistance portion having a resistance higher than other portions, at least a part of the high resistance portion being arranged to overlap the wiring line in plan view, and a light-emitting layer that is interposed between the first and second electrodes.

Claims (19)

1. An organic EL device comprising:

first electrodes;

wiring lines that drive the first electrodes;

second electrodes that each has a high resistance portion having a resistance higher than other portions of the second electrodes, at least a part of the high resistance portion being arranged to overlap the wiring lines in plan view; and

a light-emitting layer that is interposed between the first and second electrodes,

the high resistance portion being formed between pixel regions so as to extend, in plan view, for a first extension length and a second extension length, the first extension length being less than a length of the pixel region and the second extension length being less than the first extension length.

2. The organic EL device according to claim 1 , wherein the wiring lines are arranged in a lattice shape.

3. The organic EL device according to claim 1 ,

wherein a plurality of the light-emitting layers are arranged, and each of the second electrodes includes a plurality of the high resistance portions; and

the high resistance portions are provided at the same pitches as those of the plurality of light-emitting layers and are arranged around the light-emitting layers.

4. The organic EL device according to claim 3 , wherein the high resistance portions are arranged to overlap intersection portions of the wiring lines arranged in a lattice shape in plan view.

5. The organic EL device according to claim 3 , wherein the high resistance portion is formed by opening the second electrode.

6. The organic EL device according to claim 1 ,

wherein a plurality of the light-emitting layers are arranged and each of the second electrodes includes a plurality of the high resistance portions; and

the high resistance portions are arranged at pitches different from those of the plurality of light-emitting layers.

7. The organic EL device according to claim 6 , wherein the plurality of high resistance portions are provided extending in a direction that intersects a direction in which the plurality of light-emitting layers extend.

8. The organic EL device according to claim 6 , the high resistance portion having a thickness smaller than the thickness of other portions of the second electrode.

9. The organic EL device according to claim 1 , wherein at least a portion other than the high resistance portion in the second electrode includes a material having a positive temperature coefficient.

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

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2006
From: HAYASHI, KANJI
To: SEIKO EPSON CORPORATION
Reel/Frame 017585/0103 →
Priority Claims (1)
JP 2005-068693 · Mar 11, 2005 · national
Continuity (1)
Related Publication 20060202611A1 · Sep 14, 2006