IP Library Granted Patent US 9,843,019
Granted Patent B2
US 9,843,019 · App. 15/113,422 · Granted Dec 12, 2017

Light emitting apparatus

Inventors: Shinji Nakajima (Yonezawa, JP); Koji Fujita (Yonezawa, JP); Shinsuke Tanaka (Yonezawa, JP); Yuji Saito (Yonezawa, JP)
Assignee: PIONEER OLED LIGHTING DEVICES CORPORATION
H01L51/5253H01L27/3276H01L51/5203H01L51/5206H01L51/5221H01L2251/5361
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 9,843,019
App. No.
15/113,422
Granted
Dec 12, 2017
Kind
B2
Abstract

An organic EL element ( 102 ) is formed on a substrate ( 100 ), and an insulating layer ( 120 ) surrounds the organic EL element ( 102 ). A conductive layer ( 300 ) is located between the substrate ( 100 ) and the insulating layer ( 120 ) in a thickness direction, and is across an edge ( 126 ) of the insulating layer ( 120 ) opposite the organic EL element ( 102 ). The conductive layer ( 300 ) includes a first layer ( 310 ) and a second layer ( 320 ). The second layer ( 320 ) is formed on the first layer ( 310 ). The conductive layer ( 300 ) does not include a portion of the second layer ( 320 ) in a portion overlapped with the edge ( 126 ) of the insulating layer ( 120 ).

Claims (16)

1. A light emitting apparatus comprising:

a substrate;

an organic EL element formed on the substrate;

an insulating layer that surrounds the organic EL element; and

a conductive layer located between the substrate and the insulating layer and being across an edge of the insulating layer,

wherein the conductive layer includes a first layer and a second layer formed over the first layer,

wherein the second layer includes

a metal layer, and

a protective layer formed over the metal layer and composed of a harder material than that of the metal layer, and

the conductive layer does not include a portion of the second layer in a portion overlapped with the edge of the insulating layer.

2. The light emitting apparatus according to claim 1 , wherein a layer structure of a portion of the conductive layer which is covered with the insulating layer is the same as a layer structure of a portion of the conductive layer which is not covered with the insulating layer.

3. The light emitting apparatus according to claim 2 , further comprising a terminal formed on the substrate and located further outside than the insulating layer,

wherein the conductive layer is an interconnect for connecting the organic EL element to the terminal.

4. The light emitting apparatus according to claim 3 , wherein the first layer has a light-transmissive property, and

the second layer is formed of a material having a lower resistance value than that of the first layer.

5. The light emitting apparatus according to claim 1 , wherein a layer structure of a portion of the interconnect overlapped with the edge of the insulating layer is different from a layer structure of a portion of the interconnect which is covered with the insulating layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2016
From: NAKAJIMA, SHINJI; FUJITA, KOJI; TANAKA, SHINSUKE; SAITO, YUJI
To: PIONEER OLED LIGHTING DEVICES CORPORATION
Reel/Frame 039220/0420 →
Continuity (1)
Related Publication 20170012240A1 · Jan 12, 2017