IP Library Granted Patent US 7,053,548
Granted Patent B2
US 7,053,548 · App. 10/445,190 · Granted May 30, 2006

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

Assignee: Seiko Epson Corporation
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,053,548
App. No.
10/445,190
Granted
May 30, 2006
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 103 G, connected to pixel electrodes are provided between the cathode wiring lines and the effective area.

Claims (29)

1. A light-emitting device, comprising:

a substrate;

a plurality of pixels, which are provided in an effective area on the substrate, including light-emitting elements having light-emitting layers interposed between first electrodes and a second electrode; and

electrode wiring lines connected to the second electrode outside the effective area, the electrode wiring lines extending along at least one side among a plurality of sides forming an outer periphery of the substrate and a plurality of sides forming an outer periphery of the effective area, the electrode wiring lines 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 a sealing member covering the second electrode,

the sealing member being connected to a connection portion on the substrate, and

at least some of the electrode wiring lines overlapping the connection portion.

3. The light-emitting device according to claim 1 , the substrate being rectangular, and

the electrode wiring lines being arranged between three sides among four sides forming the outer periphery of the substrate and the effective area.

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

scanning lines to supply scanning signals to the plurality of pixels and data lines to supply data signal to the plurality of pixels provided in the effective area, and

the electrode wiring lines being formed of the same material as at least one of the material of the scanning lines and the material of the data lines.

5. The light-emitting device according to claim 1 , the electrode wiring lines being formed of a plurality of wiring layers blocked by an interlayer insulating film and a conductive material electrically connecting the plurality of wiring layers to each other.

6. The light-emitting device according to claim 1 , the first electrode being a pixel electrode, and

the second electrode being a common electrode provided above the pixel electrode.

7. The light-emitting device according to claim 1 , the first electrode being an anode, and the second electrode being a cathode.

8. The light-emitting device according to claim 1 , the areas occupied by the second electrode and the connection portion in the electrode wiring lines being at least 50% of the area of the electrode wiring lines.

9. An electronic apparatus, comprising:

the light-emitting device according to claim 1 .

10. A light-emitting device, comprising:

a substrate;

a plurality of pixels, which are provided in an effective area on the substrate, including light-emitting elements having light-emitting layers interposed between first electrodes and a second electrode;

electrode wiring lines connected to the second electrode outside the effective area;

effective area power source lines; and

power source lines connected to the first electrodes outside the effective area through the effective area power source lines provided in the effective area, the power source lines being provided closer to the effective area than the electrode wiring lines, and an edge of the second electrode projecting farther outboard than an edge of the electrode wiring lines.

11. A light-emitting device according to claim 10 , further comprising the power source lines being formed of a plurality of wiring layers blocked by an interlayer insulating film and a conductive material electrically connecting the plurality of wiring layers to each other.

12. The light-emitting device according to claim 10 , further comprising a sealing member covering the second electrode,

the sealing member overlapping a connection portion on the substrate, and

at least some of the power source lines overlapping the connection portion.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2013
From: SEIKO EPSON CORPORATION
To: INTELLECTUAL KEYSTONE TECHNOLOGY LLC
Reel/Frame 030319/0722 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 22, 2003
From: NAKANISHI, HAYATO
To: SEIKO EPSON CORPORATION
Reel/Frame 013993/0880 →
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 2002-145431 · May 22, 2003 · national
Continuity (1)
Related Publication 20060061268A1 · Mar 23, 2006