Phosphor thin film, preparation method, and EL panel

Details Phosphor thin film, preparation method, and EL panel Phosphor thin film, preparation method, and EL panel

2006-02-28

2006-02-28

Dye, Rena (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C252S30140S, C257S102000, C257S103000, C313S502000, C313S503000

Reexamination Certificate

active

07005198

ABSTRACT:
A phosphor thin film is provided that has a high luminance, a satisfactory color purity sufficient to eliminate a need for filters, and a long luminance life. The phosphor thin film can be adapted to suit each element of red, green and blue in full color EL panels. The phosphor thin film includes a matrix material and a luminescent center. The matrix material is a sulfide containing at least an alkaline earth element, Ga and/or In, sulfur (S) and optionally, Al, or an oxysulfide further containing oxygen (O) in addition to the foregoing elements. Provided that A stands for the alkaline earth element and B stands for Ga, In and Al in the matrix material, the atomic ratio B/A is in the range: B/A=2.1 to 3.5.

REFERENCES:
patent: 5309070 (1994-05-01), Sun et al.
patent: 5505986 (1996-04-01), Velthaus et al.
patent: 5656888 (1997-08-01), Sun et al.
patent: 5747929 (1998-05-01), Kato et al.
patent: 5753934 (1998-05-01), Yano et al.
patent: 5801105 (1998-09-01), Yano et al.
patent: 5810923 (1998-09-01), Yano et al.
patent: 5828080 (1998-10-01), Yano et al.
patent: 5919515 (1999-07-01), Yano et al.
patent: 5955213 (1999-09-01), Yano et al.
patent: 5985404 (1999-11-01), Yano et al.
patent: 6045626 (2000-04-01), Yano et al.
patent: 6096434 (2000-08-01), Yano et al.
patent: 6121647 (2000-09-01), Yano et al.
patent: 6198208 (2001-03-01), Yano et al.
patent: 6258459 (2001-07-01), Noguchi et al.
patent: 6387712 (2002-05-01), Yano et al.
patent: 6597108 (2003-07-01), Yano et al.
patent: 6614173 (2003-09-01), Yano et al.
patent: 6627251 (2003-09-01), Yano et al.
patent: 8-134440 (1996-05-01), None
patent: 10-199675 (1998-07-01), None
patent: 2840185 (1998-10-01), None
patent: WO 02/051960 (2002-07-01), None
I. Tanaka, et al., “Composition and Optical of Blue-Emitting BaAl2S4:Eu2+Electroluminescent Thin Films”, The 22ndSeminar Data Photoelectric Inter-Conversion the 125thCommission EL Department, May 26, 2000, pp. 16-21 (with English Concise Explanation and Partial English Translation).
P. Benalloul, et al., “IIA-III2S4Ternary Compounds: New Host Matrices for Full Color Thin Film Electroluminescence Displays”, Appl. Phys. Lett., 63 (14), Oct. 4, 1993, pp. 1954-1956.
K.T. Le Thi, et al., “Investigation of the MS-Al2S3Systems (M=Ca, Sr, Ba) and Luminescence Properties of Europium-Doped Thioaluminates”, Materials Science and Engineering, B14 (1992), pp. 393-397.
Sey-Shing Sun et al.; “High-Performance Alkaline-Earth Thiogallate Blue-Emitting ACTFEL Devices”; Journal of the SID; 4/4, 1996; pp. 305-309.
M. Kawanishi, et al., “CaAl2S4:Ce Thin Film EL Devices Preparaed by the Two Targets Pulse Electron-Beam Evaporation”, Technical Report of IEIECE, EID98-113, Jan. 1999, pp. 19-24 (with English Abstract and Partial English Translation).
N. Miura, et al., “High-Luminance Blue-Emitting BaAl2S4:Eu Thin-Film Electroluminescent Devices”, Jpn. J. Appl. Phys., vol. 38 (1999), pp. L1291-L1292.
S. Oshio, et al., “Novel Electroluminescent Thin Films: Thiogallate-Type Phosphors”, Display and Imaging, vol. 3, No. 2, pp. 181-187 (with English Abstract and Partial English Translation).
P.C. Donohue, et al., “The Synthesis and Photoluminescence of M11M2111(S,Se)4”, J. Electrochem. Soc., vol. 121, No. 1, pp. 137-141.
I. Tanaka, et al., “Composition and Optical Properties of Blue-Emitting BaAl2S4:Eu2+Electroluminescent Thin Films”, The 22ndSeminar Data Photoelectric Inter-Conversion the 125thCommission EL Department, May 26, 2000, pp. 16-21 (with English Concise Explanation and Partial English Translation).
P. Benalloul, et al., “IIA-III2-S4Temary Compounds: New Host Matrices for Full Color Thin Film Electroluminescence Displays”, Appl. Phys. Lett., 63 (14), Oct. 4, 1993, pp. 1954-1956.
K.T. Le Thi, et al., “Investigation f the MS-Al2S3Systems (M=Ca, Sr, Ba) and Luminescence Properties of Europium-Doped Thioaluminates”, Materials Science and Engineering, B14 (1992), pp. 393-397.
U.S. Appl. No. 09/834,950, filed Apr. 16, 2001, Yano.
U.S. Appl. No. 09/842,802, filed Apr. 27, 2001, Noguchi et al.
U.S. Appl. No. 09/842,805, filed Apr. 27, 2001, Noguchi et al.
U.S. Appl. No. 09/866,691, filed May 30, 2001, Nagano et al.
U.S. Appl. No. 09/866,696, filed May 30, 2001, Yano et al.
U.S. Appl. No. 09/866,693, filed May 30, 2001, Yano et al.
U.S. Appl. No. 09/866,692, filed May 30, 2001, Yano et al.
U.S. Appl. No. 09/866,719, filed May 30, 2001, Yano et al.
U.S. Appl. No. 09/866,699, filed May 30, 2001, Yano et al.
U.S. Appl. No. 09/971,707, filed Oct. 9, 2001, Nagano et al.
U.S. Appl. No. 09/969,768, filed Oct. 4, 2001, Yano et al.
U.S. Appl. No. 09/988,144, filed Nov. 19, 2001, Yano et al.
U.S. Appl. No. 09/988,141, filed Nov. 19, 2001, Nagano et al.
U.S. Appl. No. 10/012,398, filed Apr. 29, 2002, Nagano et al.
U.S. Appl. No. 10/125,477, filed Apr. 19, 2002, Yano et al.
U.S. Appl. No. 10/125,412, filed Apr. 19, 2002, Yano et al.
U.S. Appl. No. 10/307,319, filed Dec. 2, 2002, Miura et al.
U.S. Appl. No. 10/329,357, filed Dec. 27, 2002, Yano et al.
U.S. Appl. No. 10/347,441, filed Jan. 21, 2003, Yano et al.
U.S. Appl. No. 10/358,345, filed Feb. 5, 2003, Yano et al.
U.S. Appl. No. 10/364,377, filed Feb. 12, 2003, Miura et al.

Affiliated with

Also associated with

Rating

Phosphor thin film, preparation method, and EL panel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phosphor thin film, preparation method, and EL panel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phosphor thin film, preparation method, and EL panel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3626334