Combination film, in particular for thin film electroluminescent

Details Combination film, in particular for thin film electroluminescent Combination film, in particular for thin film electroluminescent

1983-04-25

1984-12-04

Ives, Patricia C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428469, 427 87, 427 90, B32B 1504

Patent

active

044864876

ABSTRACT:
Described herein is a combination film based on aluminium oxide (Al.sub.2 O.sub.3) and titanium oxide (TiO.sub.2), to be used in particular in the thin film electroluminescent structures. Aluminum oxide is an amorphous insulator having a low refraction index, whereas titanium oxide is a chrystalline conductor having a high refraction index. The combination film according to the invention comprises a plurality of alternating aluminium oxide and titanium oxide layers having a thickness of 3 to 1000 .ANG.. preferably 5 to 250 .ANG.. Such a combination film has favorable dielectric strength and refraction index properties and is particularly adapted for use in electroluminescence structures.

REFERENCES:
patent: 4058430 (1977-11-01), Suntola et al.
patent: 4175611 (1979-11-01), Fletcher
patent: 4307147 (1981-12-01), Ohishi et al.
patent: 4364995 (1982-12-01), Crawford et al.

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