Title:
PHOSPHOR FOR DISPLAY DEVICE, MANUFACTURING METHOD THEREOF AND DISPLAY DEVICE USING THE PHOSPHOR
Document Type and Number:
WIPO Patent Application WO/2006/051600
Kind Code:
A1
Abstract:
In a phosphor for display device, an area of a shorter wavelength than a wavelength 60nm shorter than a peak wavelength in emission spectrum is permitted to be 1.6% of the entire area of the spectrum or less. The phosphor can be obtained by removing adsorbed water and oxygen from a phosphor material and heating and burning the material by maintaining such status. In the phosphor to be used in color display devices such as CRT and FED, especially a green light emitting zinc sulfide phosphor, unnecessary emission due to a defect under a high current density is suppressed, and current characteristics and color purity of the color display devices are improved.
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Inventors:
KUBOTA SHUNITI (JP)
SHIMADA MASAHIKO (JP)
YAMAGUCHI KENICHI (JP)
ITO TAKEO (JP)
MATSUURA SUSUMU (JP)
SHIMADA MASAHIKO (JP)
YAMAGUCHI KENICHI (JP)
ITO TAKEO (JP)
MATSUURA SUSUMU (JP)
Application Number:
PCT/JP2004/016859
Publication Date:
May 18, 2006
Filing Date:
November 12, 2004
Export Citation:
Assignee:
TOSHIBA KK (JP)
KUBOTA SHUNITI (JP)
SHIMADA MASAHIKO (JP)
YAMAGUCHI KENICHI (JP)
ITO TAKEO (JP)
MATSUURA SUSUMU (JP)
KUBOTA SHUNITI (JP)
SHIMADA MASAHIKO (JP)
YAMAGUCHI KENICHI (JP)
ITO TAKEO (JP)
MATSUURA SUSUMU (JP)
International Classes:
C09K11/08; C09K11/54; H01J29/20; H01J31/12; (IPC1-7): C09K11/08; C09K11/54; H01J29/20; H01J31/12
Foreign References:
| JPH03143986A | 1991-06-19 | |||
| JPH05230445A | 1993-09-07 |
Attorney, Agent or Firm:
Suyama, Saichi (1 Kandata-cho 2-chome, Chiyoda-ku Tokyo 46, JP)
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