An OLED includes an anode, a light-emitting layer disposed over the anode, and a first electron-injecting layer disposed over the light-emitting layer, wherein the first electron-injecting layer includes at least one organic host material having a reduction potential less than -1.0 V vs. a Saturated Calomel Electrode and at least one dopant material capable of reducing the organic host material. The OLED also includes a second electron-injecting layer disposed in contact with the first electron-injecting layer, wherein the second electron-injecting layer includes at least one organic material having a reduction potential greater than -1.0 V vs. a Saturated Calomel Electrode, and a cathode disposed over the second electron-injecting layer.

 
Web www.patentalert.com

< Organic electroluminescent display device and method of preparing the same

> Organic light-emitting display device

> Gamma reference voltage generating circuit and flat panel display having the same

~ 00566