OLED lighting device with short tolerant structure

Patent metadata

Field	Value
Publication number	US-10164000-B2
Application number	US-201715604748-A
Country	US
Kind code	B2
Filing date	May 25, 2017
Priority date	Jan 12, 2011
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A first device that may include a short tolerant structure, and methods for fabricating embodiments of the first device, are provided. A first device may include a substrate and a plurality of OLED circuit elements disposed on the substrate. Each OLED circuit element may include a fuse that is adapted to open an electrical connection in response to an electrical short in the pixel. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements.

First claim

The invention claimed is:

1. A method for producing a device comprising:
providing a substrate having a first conductive layer disposed thereon;
defining a plurality of physically segmented first electrodes on the first conductive layer,
defining a plurality of fuses on the first conductive layer;
fabricating a bus line on the substrate;
electrically connecting each of the plurality of physically segmented first electrodes to the bus line through the fuses;
after fabricating the bus line, depositing an organic EL material over the first electrodes; and
depositing a second electrode over the organic EL material.

2. The method of claim 1 , wherein the first electrodes are anodes.

3. The method of claim 1 , wherein the plurality of first electrodes and the plurality of fuses comprise the same material.

4. The method of claim 1 , wherein the plurality of first electrodes and the plurality of fuses are defined simultaneously.

5. The method of claim 1 , wherein the first conductive layer comprises a transparent conductive oxide.

Assignees

• Universal Display Corp

Inventors

• Ma Ruiqing
• Pang Huiqing
• Levermore Peter
• Mandlik Prashant
• Silvernail Jeffrey
• Rajan Kamala
• Paynter Jason

Classifications

• H01L27/3225

  Electricity · mapped topic

• H01L27/3288

  Electricity · mapped topic

• H01L27/329 Primary

  Electricity · mapped topic

• H01L27/3281

  Electricity · mapped topic

• H01L27/3209

  Electricity · mapped topic