IP Library Granted Patent US 7,759,675
Granted Patent B2
US 7,759,675 · App. 11/373,263 · Granted Jul 20, 2010

Organic electroluminescent device

Assignee: LG Display Co., Ltd.
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 7,759,675
App. No.
11/373,263
Granted
Jul 20, 2010
Kind
B2
Abstract

The present invention relates to a light emitting device, particularly to an organic electroluminescent device, that can prevent corrosion of data lines and scan lines and improve the adhesive strength of a sealant. The organic electroluminescent device includes a substrate, a plurality of anode electrode layers disposed in a first direction on the substrate, a plurality of cathode electrode layers disposed in a second direction different from the first direction on the substrate, luminescent areas formed by the anode electrode layers and the cathode electrode layers, a plurality of data lines electrically communicated with the anode electrode layers, and a plurality of scan lines electrically communicated with the cathode electrode layers. At least one of the data lines and the scan lines includes a transparent electrode layer, and the sub-electrode layer completely encloses the transparent electrode layer.

Claims (25)

1. An organic electroluminescent device comprising:

a substrate:

a plurality of anode electrode layers disposed in a first direction on the substrate;

a plurality of cathode electrode layers disposed in a second direction different from the first direction on the substrate;

luminescent areas formed by the anode electrode layers and the cathode electrode layers;

a plurality of data lines electrically communicated with the anode electrode layers;

a plurality of scan lines electrically communicated with the cathode electrode layers; and

a cap attached to the substrate by a sealant to seal the anode electrode layers, the cathode electrode layers and the luminescent areas,

wherein each of the data lines and the scan lines includes a transparent electrode layer and a sub-electrode layers formed on the substrate,

wherein the sub-electrode layer completely encloses the transparent electrode layer, is directly formed on the substrate at an area to which the cap is attached, and

wherein the sealant is spread on a part of the sub-electrode layers corresponding to the area to which the cap is attached.

2. The device of claim 1 , wherein the sub-electrode layer is electrically communicated with the cathode electrode layer.

3. The device of claim 1 , wherein the transparent electrode layer includes ITO or IZO.

4. The device of claim 1 , wherein the sub-electrode layers include at least one selected from a group consisting of silver and copper.

5. A light emitting device having a plurality of pixels formed on crossing areas of anode electrode layers and cathode electrode layers on a substrate comprising:

a plurality of data lines electrically communicated with the anode electrode layers;

a plurality of scan lines electrically communicated with the cathode electrode layers; and

a cap attached to the substrate by a sealant to seal the anode electrode layers and the cathode electrode layers,

wherein each of the plurality of data lines includes a transparent electrode layer formed on the substrate and a sub-electrode layer completely enclosing the transparent electrode layer,

wherein each of the plurality of scan lines includes a transparent electrode layer formed on the substrate and a sub-electrode layer completely enclosing the transparent electrode layer,

wherein the sub-electrode layers of the data and scan lines are directly formed on the substrate at an area to which the is attached, and

wherein the sealant is spread on a part of the sub-electrode layers corresponding to the area to which the cap is attached.

6. The device of claim 5 , wherein the device is and organic electroluminescence device.

7. The device of claim 5 , wherein the transparent electrode layer includes ITO or IZO.

8. The device of claim 5 , wherein the sub-electrode layers include at least one selected from a group consisting of silver and copper.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2008
From: LG ELECTRONICS INC.
To: LG DISPLAY CO., LTD.
Reel/Frame 020845/0783 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 13, 2006
From: LEE, CHUN TAK
To: LG ELECTRONICS INC.
Reel/Frame 017670/0039 →
Priority Claims (2)
KR 10-2005-0052517 · Jun 17, 2005 · national
KR 10-2005-0052519 · Jun 17, 2005 · national
Continuity (1)
Related Publication 20060284193A1 · Dec 21, 2006