Thin film electroluminescent display device

Details Thin film electroluminescent display device Thin film electroluminescent display device

G - Physics

09

F

345/5

G09F 9/00 (2006.01) H05B 33/22 (2006.01)

Patent

CA 1243762

- 10 - ABSTRACT OF THE DISCLOSURE A thin film electroluminescent display device comprising a transparent electrode layer, a segmented electrode layer, an electroluminescent phosphor layer between the electrode layers, and an improved dark field material disposed as a layer between the phosphor and segmented electrode layers. The improved dark field layer is of a composition of a dielectric material, such as the preferred magnesium oxide, and a noble metal, which in the preferred version is gold. These materials comprising the dark field composition may be co-evaporated by an electron beam evaporation or other suitable deposition technique. The composition of dark field material provides for contrast enhancement, is non-toxic, and is readily analyzable.

464835

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