Method of improving stability in OLED devices

Details Method of improving stability in OLED devices Method of improving stability in OLED devices

2006-10-17

2006-10-17

Williams, Joseph (Department: 2879)

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

Reexamination Certificate

active

07121912

ABSTRACT:
A method of treating a cathode of an OLED device having a substrate and which has a spaced anode and organic layers between the anode and cathode includes evacuating a chamber so that it has a pressure no greater than 10−6Torr; heating the OLED substrate in the chamber to a temperature less than 100° C.; and delivering gas, including ozone, to the evacuated chamber which includes the heated OLED substrate at a sufficient rate so that the pressure is less than 1 atmosphere, so that the life of the OLED substrate is increased and the operating voltage is decreased.

REFERENCES:
patent: 4769292 (1988-09-01), Tang et al.
patent: 4885211 (1989-12-01), Tang et al.
patent: 6104137 (2000-08-01), Abiko et al.

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