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Title
Stacked OLED microdisplay with low-voltage silicon backplane
Date Issued
2022-05-01
Author(s)
Hamer, John
Spindler, Jeffrey
Kondakova, Marina
Patent No
TW202217785 A
Abstract
A microdisplay comprising a light emitting OLED stack on top of a silicon-based backplane with individually addressable pixels and control circuitry wherein the light emitting OLED stack has three or more OLED units between a top electrode and a bottom electrode; and the control circuitry of the silicon-based backplane comprises at least two transistors with their channels connected in series between an external power source V DD, and the bottom electrode of the OLED stack. The light-emitting OLED stack preferably has a Vth of at least 7.5 V or more. The control circuit can include a protection circuit comprised of a p-n diode, preferably a bipolar junction transistor.
Language
en