IP Library Granted Patent US 7,427,832
Granted Patent B2
US 7,427,832 · App. 11/032,198 · Granted Sep 23, 2008

Organic electroluminescence device and manufacturing method therefor

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Quick Facts
Patent No.
US 7,427,832
App. No.
11/032,198
Granted
Sep 23, 2008
Kind
B2
Abstract

An organic EL device in accordance with the invention has a structure in which a first electrode, a light-emitting layer, and a second electrode are formed on a substrate in this order, and light from the light-emitting layer is emitted to an exterior of the device via the second electrode.

Claims (25)

1. An organic EL device comprising:

a substrate;

a plurality of pixels,

a plurality of first electrodes corresponding to the plurality of pixels being formed on the substrate,

a light-emitting layer formed over the first electrodes;

a pixel partition including an insulating material being formed between the pixels,

an auxiliary electrode including a conductive material and having a pattern equivalent to that of the partition being formed at a position corresponding to a top surface of the partition that includes the insulating material; and

a second electrode continuous over the light-emitting layer and the auxiliary electrode.

2. The organic EL device according to claim 1 , the pixel partition including a first layer and second layer.

3. The organic EL device according to claim 2 , the first layer protruding from the second layer and delineating the light-emitting layer.

4. An organic EL device comprising:

a substrate;

a plurality of pixels,

a plurality of first electrodes corresponding to the plurality of pixels being formed on the substrate,

a pixel partition including an insulating material being formed between the pixels,

a light-emitting layer formed over the first electrodes;

a second electrode continuous over the light-emitting layer and the pixel partition;

a auxiliary electrode including a conductive material being formed over the second electrode at a position corresponding to the pixel partition.

5. The organic EL device according to claim 4 , the substrate being a semiconductor substrate having an integrated circuit formed thereon.

6. The organ EL device according to claim 5 , the integrated circuit including at least one of a controller, a power supply circuit, an X driver and a Y driver.

7. The organic EL device according to claim 4 , wherein, after at least one of the second electrode and the auxiliary electrode are formed, a protective substrate having a light-absorbing layer formed at a position corresponding to a position between the pixels is disposed so that the pixel and an area of the protective substrate corresponding to the pixel are aligned with each other, and the protective substrate is subsequently bonded thereto with a sealing resin provided therebetween.

8. The organic EL device according to claim 4 , the pixel partition including a first layer and a second layer.

9. The organic EL device according to claim 8 , the first layer protruding from the second layer and delineating the light-emitting layer.

10. The organic EL device according to claim 4 , the auxiliary electrode including a light-absorbing conductive material.

11. The organic EL device according to claim 10 , the auxiliary electrode including carbon or chromium.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 17, 2022
From: EL TECHNOLOGY FUSION GODO KAISHA
To: ELEMENT CAPITAL COMMERCIAL COMPANY PTE. LTD.
Reel/Frame 059912/0458 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 31, 2018
From: SEIKO EPSON CORPORATION
To: EL TECHNOLOGY FUSION GODO KAISHA
Reel/Frame 047998/0879 →