Patent ID: 9282612
Filing Date: 2016-03-08
CPC Classification: H01L,H05B,Y02B

Claim Text:
1. A dual mode organic light emitting device, comprising: a cathode and an anode; an emission layer interposed between the cathode and the anode; and an electron transport layer (ETL) interposed between the cathode and the emission layer; wherein the cathode comprises a first metal selected from silver (Ag), aluminum (Al), copper (Cu), and gold (Au) and a second metal having a work function of about 4.0 eV or less, and the first metal and the second metal are present at a weight ratio of about 1:10 to about 1:100, a driving transistor configured to apply a current to the cathode; and a capacitor configured to apply a voltage corresponding to a data voltage to a gate of the driving transistor, wherein a first terminal of the driving transistor is electrically connected to the cathode, a first power source is applied to a second terminal of the driving transistor, and a second power source is applied to the anode, wherein when the dual mode organic light emitting device operates in a normal mode the first power source has a lower voltage level than the second power source, and when the dual mode organic light emitting device operates in a reflective mode, the first power source has a higher voltage level than the second power source.