Patent ID: 6720572
Filing Date: 2004-04-13
Classification: H01L

Abstract:
A semiconductor device comprising:a thin film transistor and a light emitting diode that share a common layer of semiconductor material and a first electrical contact; a second electrical contact disposed with respect to said common layer of semiconductor material such that carriers injected via one of said first and second electrical contacts into said common layer of semiconductor material are received by the other of said first and second electrical contacts without intervening removal thereof by any other electrical contact to said common layer of semiconductor material, wherein said first and second electrical contacts are one of (i) a cathode of said light emitting diode and a source of said thin film transistor, respectively, and (ii) an anode of said light emitting diode and a drain of said thin film transistor, respectively; a layer of light emitting material disposed between said first electrical contact and said common layer of semiconductor material; and a gate electrical contact disposed with respect to said common layer of semiconductor material so as to control said carriers in response to an applied signal.