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US 2003/0146691 A1Published application
Phosphor thin film, preparation method, and EL panel
AssigneeTDK Corporation
InventorsYoshihiko Yano, Tomoyuki Oike, Masaki Takahashi, Katsuto Nagano
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Abstract
In a phosphor thin film comprising a matrix material and a luminescence center, the matrix material has the compositional formula: MIIvAxByOzSw wherein MII is Zn, Cd or Hg, A is Mg, Ca, Sr, Ba or rare earth element, B is Al, Ga or In, and atomic ratios v, x, y, z and w are 0.005≦v≦5, 1≦x≦5, 1≦y≦15, 0<z≦30, and 0<w≦30. The phosphor thin film of quality is formed at low cost by a low-temperature process, enabling manufacture of full-color EL panels.
Claims15
A phosphor thin film comprising a matrix material and a luminescence center, said matrix material having the compositional formula:
- MIIvAxByOzSw wherein
- MII is at least one element selected from the group consisting of Zn, Cd and Hg,
- A is at least one element selected from the group consisting of Mg, Ca, Sr, Ba and rare earth elements,
- B is at least one element selected from the group consisting of Al, Ga and In, and
- v, x, y, z and w are representative of atomic ratios, v is from 0.005 to 5, x is from 1 to 5, y is from 1 to 15, z is from more than 0 to 30, and w is from more than 0 to 30.
2 more elements
Dependencies are inferred from the claim text.