Patterning method for OLEDs

US8940568B2 · kind B2 · utility

Assignee

• UNIVERSAL DISPLAY CORPORATION · US

Inventors

• Siddharth Mohan · San Diego, US
• Paul E. Burrows · Chattaroy, US
• Julia J. Brown · Yardley, US

Key dates

• Filing date: Aug 31, 2012
• Grant date: Jan 27, 2015
• Expiry date: Jan 10, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/351

Abstract

Methods of fabricating a device having laterally patterned first and second sub-devices, such as subpixels of an OLED, are provided. Exemplary methods may include depositing via organic vapor jet printing (OVJP) a first organic layer of the first sub-device and a first organic layer of the second sub-device. The first organic layer of the first sub-device and the first organic layer of the second sub-device are both the same type of layer, but have different thicknesses. The type of layer is selected from an ETL, an HTL, an HIL, a spacer and a capping layer.