Active matrix OLED display with normally-on thin-film transistors
Abstract:
A pixel circuit includes a first capacitor and diode stage connected to a gate of a first transistor and ground, which receives a select input. A data line is coupled to a first source/drain of the first transistor, and a second source/drain of the first transistor is coupled to a gate of a second transistor. The second transistor has a drain connected to a supply voltage and a source connected to a resistor. The resistor connects to an organic light emitting diode (OLED), which connects to the ground.
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