Passivated organic device having alternating layers of polymer a

Details Passivated organic device having alternating layers of polymer a Passivated organic device having alternating layers of polymer a

1997-06-30

1998-05-26

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313504, H01J 162

Patent

active

057571260

ABSTRACT:
A method of passivating organic devices positioned on a supporting transparent plastic substrate including the steps of overcoating the plastic substrate with a multi-layer overcoating, composed of alternating layers of a transparent polymer film and a transparent dielectric material, forming an organic device on the overcoated transparent plastic substrate and sealing the organic device formed on the overcoated plastic substrate. The polymer film layer used in overcoating the plastic substrate acts as a means of improving the barrier properties of the multi-layer overcoating and the dielectric material acts as a physical barrier to atmospheric elements which can corrode the organic device and are a detriment to the reliability of organic LEDs.

REFERENCES:
patent: 5012156 (1991-04-01), Kadokura et al.
patent: 5478658 (1995-12-01), Dodabalapur et al.

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