Lumineq Oy

Jani Holopainen

Kari Härkönen

Kari HÄRKÖNEN

An inorganic thin film electroluminescent display element having a layer structure comprising: a first dielectric layer, a luminescent layer, comprising a luminescent material, on the first dielectric layer, and a second dielectric layer on the luminescent layer. Each of the first and the second dielectric layers comprises nanolaminate with alternating aluminum oxide AlOand hafnium oxide HfOsub-layers, the nanolaminate having at least two sub-layers of both types and a thickness of less than or equal to 300 nm.

Inorganic TFEL display element and manufacturing method

This disclosure relates to use of group 4 element codoping in a phosphor layer of activator-doped zinc sulfide of a display element, a display element, and a method for manufacturing a display element. The display element () comprises a first insulator layer (), a second insulator layer (), and a first phosphor layer () of activator-group 4 element codoped zinc sulfide between the first insulator layer () and the second insulator layer (). The first phosphor layer () has an average atomic percentage of group 4 elements of at least 0.01 atomic percent.

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Espoo, Finland

Jani Holopainen