Title:
PHOSPHOR THIN FILM, ITS PRODUCTION METHOD, AND EL PANEL
Document Type and Number:
WIPO Patent Application WO/2002/086017
Kind Code:
A1
Abstract:
A phosphor thin film enabling high luminance, dispensing with a filter because of good color purity, achieving a long luminance life, and especially suitable for the RGB elements of a full-color EL panel. The phosphor thin film contains a host material and luminescence centers. The host material is an oxy sulfide that at least contains a alkaline earth element, Ga and/or In, and sulfur (S) and may further contain Al. Or an oxy sulfide that contains the above elements and further oxygen (O). The atomic ratio B/A of the host material is B/A = 2.1 to 3.5 Where A is an alkaline earth and B is Ga, In, and Al.
Inventors:
Yano, Yoshihiko c/o TDK Corporation 13-1 (Nihonbashi 1-chome Chuo-ku, Tokyo, 103-8272, JP)
Oike, Tomoyuki c/o TDK Corporation 13-1 (Nihonbashi 1-chome Chuo-ku, Tokyo, 103-8272, JP)
Oike, Tomoyuki c/o TDK Corporation 13-1 (Nihonbashi 1-chome Chuo-ku, Tokyo, 103-8272, JP)
Application Number:
PCT/JP2002/003927
Publication Date:
October 31, 2002
Filing Date:
April 19, 2002
Export Citation:
Assignee:
TDK CORPORATION (13-1, Nihonbashi 1-chome Chuo-ku, Tokyo, 103-8272, JP)
International Classes:
C09K11/77; H01J1/63; H05B33/14; C09K11/77; H01J1/00; H05B33/14; (IPC1-7): C09K11/62; H05B33/10; H05B33/14
Attorney, Agent or Firm:
Ishii, Yoichi (Tenjin Iyasaka Kosan Bldg. 3F 23-1, Yushima 3-chome Bunkyo-ku, Tokyo, 113-0034, JP)
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