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The Altering Ratio of the luminance of a Inorganic Powder EL Lamp That was made by Screen Printing Technique  

Kang, Young-Reep (Dept. of Printing Media, Joongbu University)
Moon, Kil-Hwan (Dept. of Printing Media, Joongbu University)
Publication Information
Journal of the Korean Graphic Arts Communication Society / v.29, no.2, 2011 , pp. 33-44 More about this Journal
Abstract
The inorganic powder EL lamp was made by screen printing technique with a phosphor ink and a dielectric ink. The thickness of a phosphor ink layer and a dielectric ink layer is $35{\mu}m$ and $54{\mu}m$ respectively. A increasing ratio of the luminance of inorganic powder EL lamp to be a 1P1PD-phosphor ink layer in which increased voltage at constant frequency is higher 12% than when increased frequency at constant voltage. It is higher 57% than when increased frequency at constant voltage that the rate of increase of the luminance of inorganic powder EL lamp to be a 2PD-phosphor ink layer in which increased voltage at constant frequency. Finally, when increased voltage at constant frequency, a increasing ratio of the luminance of inorganic powder EL lamp to be a 2PD-phosphor ink layer is higher about 40% than that to be a 1P1PD-phosphor ink layer.
Keywords
screen printing technique; inorganic powder EL lamp; luminance; phosphors ink layer; dielectrics ink layer;
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