IP Library Granted Patent US 7,932,672
Granted Patent B2
US 7,932,672 · App. 11/979,207 · Granted Apr 26, 2011

Light-emitting device with improved brightness control and narrow frame and electronic apparatus with the light-emitting device

Assignee: Seiko Epson Corporation
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Quick Facts
Patent No.
US 7,932,672
App. No.
11/979,207
Granted
Apr 26, 2011
Kind
B2
Abstract

The invention provides a light-emitting device and an electronic apparatus, which are capable of preventing reduction of the amount of current flowing through light-emitting elements and which have an excellent display characteristic. Cathode wiring lines connected to a cathode are provided to surround an effective area outside the effective area where a plurality of pixels having light-emitting elements are provided. First to third power source lines connected to pixel electrodes are provided between the cathode wiring lines and the effective area.

Claims (23)

1. A light-emitting device comprising:

a circuit substrate including an electrode wiring line;

first electrodes which are formed in an effective area on the circuit substrate;

a second electrode commonly formed to oppose the first electrodes and connected to the electrode wiring line at a portion outside the effective area;

light-emitting layers, each of the light-emitting layers being interposed between the opposing one of the first electrodes and the second electrode; and

a sealing member having a first portion connected to the circuit substrate at a portion outside the effective area;

at least a portion of the electrode wiring line overlapping the first portion of the sealing member and being closer to the effective area than an outer edge of the second electrode.

2. The light-emitting device according to claim 1 , further comprising:

power source lines electrically coupled to at least one of the first electrodes at a portion outside of the effective area, via effective area power source lines arranged in the effective area; and

at least a part of the power source lines overlapping the first portion of the sealing member.

3. A light-emitting device comprising:

a circuit substrate including an electrode wiring line;

first electrodes which are formed in an effective area on the circuit substrate;

a second electrode commonly formed to oppose the first electrodes and having a first portion connected to the electrode wiring line at a portion outside the effective area;

light-emitting layers, each of the light-emitting layers being interposed between the opposing one of the first electrodes and the second electrode;

a sealing resin having a second portion connected to the circuit substrate at a portion outside the effective area; and

a sealing substrate being connected to the circuit substrate through the sealing resin;

at least a part of the first portion of the second electrode overlapping the second portion of the sealing resin.

4. The light-emitting device according to claim 3 , further comprising:

power source lines electrically coupled to at least one of the first electrodes at a portion outside of the effective area, via effective power source lines arranged in the effective area; and

at least a part of the power source lines overlapping the second portion of the sealing member.

5. The light-emitting device according to claim 3 , further comprising:

the second electrode having the first portion in direct contact with the electrode wiring line at the portion outside the effective area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2013
From: SEIKO EPSON CORPORATION
To: INTELLECTUAL KEYSTONE TECHNOLOGY LLC
Reel/Frame 030319/0722 →
Priority Claims (5)
JP 2002-154609 · May 28, 2002 · national
JP 2002-154610 · May 28, 2002 · national
JP 2002-154611 · May 28, 2002 · national
JP 2002-154612 · May 28, 2002 · national
JP 2003-145431 · May 22, 2003 · national
Continuity (3)
Continuation 11403933 · Apr 14, 2006
Continuation 10445190 · May 27, 2003
Related Publication 20080079361A1 · Apr 3, 2008