Phosphorescent article

Details Phosphorescent article Phosphorescent article

1996-01-31

1998-09-22

Yamnitzky, Marie R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428204, 428213, 428215, 428328, 428332, 428352, 428690, 428913, 428 418, 428 421, 428 76, 40542, 2504844, B32B 310, F21K 200

Patent

active

058111743

ABSTRACT:
A phosphorescent article having a first transparent resin layer, a phosphorescent layer, and a second transparent resin layer sequentially superposed in the order mentioned on a supporting layer possessed of a reflective surface. The phosphorescent layer is coated in a tightly sealed state with the first and second transparent resin layers. Preferably the second transparent resin layer has a projecting part so formed as to protrude from the surface of the part thereof which covers the phosphorescent layer, namely in the part which corresponds to the underlying phosphorescent layer, and a surface layer (printed layer) is printed or applied on the part of the surface other than the projecting part, namely on the surface of the part in which the phosphorescent layer does not exist. SrAl.sub.2 O.sub.4 is used as a phosphorescent pigment to be contained in the phosphorescent layer and a transparent resin containing no ultraviolet absorbent is used for the first and second transparent resin layers.

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The Effect of an Ultrafine Pigment Color Filters on CRT Brightness, Contrast and Color Purity, Sony Sony Corporation, Display Device Gp. K. Ohno, T. Kusunoki and K. Ozawa, pp. 7-13 (date not given).
Database WPI Section Ch, Week 9606, Derwent Publications Ltd., London, GB; Class C07, AN 96-053673, XP002001150 & JP-A-07 313 036 (Nemoto Tokushu Kagaku KK), Dec. 5, 1995.

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