Universal Display Corporation

Lech Michalski

Vadim Adamovich

Chuanjun Xia

Jui-Yi Tsai

Bin Ma

Walter H Yeager

Bert Alleyne

Michael Stewart Weaver

Edward Barron

Mingjuan Su

Michael Stuart Weaver

Huiqing Pang

Peter Levermore

Michael O'Connor

Mike Weaver

A compound having a formula (L)Ir(L)having a structure selected from is disclosed. In the structures of formula (L)Ir(L), m is 1 or 2, R, R, R, R, and Rare each independently selected from hydrogen, deuterium, C1 to C6 alkyl, C1 to C6 cycloalkyl, and partially or fully deuterated variants thereof, and partially or fully fluorinated variants thereof, and, Ris selected from C1 to C6 alkyl, C1 to C6 cycloalkyl, and partially or fully deuterated variants thereof, and partially or fully fluorinated variants thereof.

Organic electroluminescent materials and devices

Techniques, devices, and systems are provided that allow for driving a device such as an OLED in various pulsed modes in which a momentary luminance greater than an apparent luminance at which the OLED is to be driven is used. The use of one or more pulsed modes allows for the lifetime of the OLED to be extended and reduces image sticking. Pulsed modes are also provided that allow for color tuning of the device by activating different portions of one or more emissive areas of the device.

OLED color tuning by driving mode variation

The present invention relates to organometallic complexes for use as emitters where a molecule of the compound has an orientation factor greater than 0.67, and devices, such as organic light emitting diodes, including the same.

A method for accelerated life testing of organic devices is provided. The lifetime of each of one or more individual organic emissive devices is measured at a non-heating current density. Based upon the measured lifetimes of the one or more devices, the device lifetime is determined for a selected luminance. An organic emissive panel is also obtained having a second organic stack that consists essentially of the one or more organic layers of the first organic stack. The junction temperature of the organic emissive panel is then determined at a heating current density. Based upon the junction temperature and the device lifetime of the one or more individual organic emissive devices, the expected lifetime of the organic emissive panel is then determined at the heating current density.

Method for accelerated lifetesting of large area OLED lighting panels

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Pennington, NJ, United States of America

Lech Michalski