Organic electroluminescence device with light and dark blue...

Details Organic electroluminescence device with light and dark blue... Organic electroluminescence device with light and dark blue...

2006-06-20

2006-06-20

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S506000, C313S512000

Reexamination Certificate

active

07064481

ABSTRACT:
An organic electroluminescent device is provided. The device includes a substrate, an anode, an emitting layer and a cathode. The anode is disposed on the substrate, the emitting layer is disposed on the anode, and the cathode is disposed on the emitting layer. The emitting layer is constructed by a dark-blue emitting layer/light-blue emitting layer/reddish orange emitting layer or a light-blue emitting layer/dark-blue emitting layer/reddish orange emitting layer. Since the dark-blue emitting layer has an excellent bright blue light color and high brightness, and the light-blue emitting layer has a long service life, and therefore, organic electroluminescent device of the present invention has an excellent blue light color, high brightness and long service life.

REFERENCES:
patent: 5126214 (1992-06-01), Tokailin et al.
patent: 5909081 (1999-06-01), Eida et al.

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