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30.2: Development of Printable Phosphor Inks for High Definition Displays
Author(s) -
Silver J.,
Withnall R.,
Staple A.,
Lipman A.,
Ireland T.,
Fern G. R.,
Harris P. G.,
English R. J.,
Heaton J. R.
Publication year - 2006
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2433218
Subject(s) - phosphor , inkwell , materials science , cathodoluminescence , repeatability , particle (ecology) , screen printing , particle size , nanotechnology , optics , chemical engineering , optoelectronics , composite material , luminescence , chemistry , chromatography , engineering , oceanography , physics , geology
Phosphors having sub‐micrometer primary particle sizes and narrow size distributions were synthesized. They were then incorporated into screen printable, aqueous ink formulations. Aggregation and settlement problems in the inks were addressed and the rheological properties of the inks were adjusted in order to facilitate the printing of phosphors in high resolution features. The relative cathodoluminescence of adjacent pixels, all containing the same red emitting cubic‐Y 2 O 3 : Eu 3+ phosphor powder have been compared to assess the repeatability of the screen‐printing of the inks.