Phosphor paste compositions and phosphor coatings obtained therefrom
First Claim
1. A phosphor coating formed by printing a pattern with a phosphor paste composition containing an organic resin binder, an organic solvent and a phosphor wholly surface-coated with a layer of an activator, said phosphor having a volume average particle size in a range of 1-7 μ
- m with particles having a particle size of 1-9 μ
m accounting for at least 60 wt.%, and then firing the phosphor paste composition, to obtain a phosphor coating with no residue.
0 Assignments
0 Petitions
Accused Products
Abstract
A phosphor paste composition is disclosed, which uses as an organic binder an acrylic polymer obtained by copolymerizing an alkyl methacrylate as a principal component with a specific amount of at least one monomer selected from unsaturated carboxylic acids and hydroxyalkyl (meth)acrylates. Also disclosed is a phosphor paste composition making use of a phosphor having a volume average particle size in a range of 1-7 μm, with particles having a particle size of 1-9 μm accounting for at least 60 wt.%. These phosphor paste compositions have excellent firing characteristics and provide phosphor coatings excellent in both light-emitting characteristics and resolution.
-
Citations
3 Claims
-
1. A phosphor coating formed by printing a pattern with a phosphor paste composition containing an organic resin binder, an organic solvent and a phosphor wholly surface-coated with a layer of an activator, said phosphor having a volume average particle size in a range of 1-7 μ
- m with particles having a particle size of 1-9 μ
m accounting for at least 60 wt.%, and then firing the phosphor paste composition, to obtain a phosphor coating with no residue. - View Dependent Claims (2, 3)
- m with particles having a particle size of 1-9 μ
Specification
-
- Resources
-
Current AssigneeMitsubishi Rayon Company Limited (Mitsubishi Chemical Holdings Corporation)
-
Original AssigneeMitsubishi Rayon Company Limited (Mitsubishi Chemical Holdings Corporation)
-
InventorsOsaka, Norihisa, Ikegami, Yukihiro
-
Primary Examiner(s)Medley, Margaret
-
Assistant Examiner(s)Diamond, Alan D.
-
Application NumberUS07/873,156Time in Patent Office627 DaysField of Search252/301.36, 252/310.35, 427/64, 427/68, 313/467, 428/690US Class Current252/301.36CPC Class CodesC09K 11/02 Use of particular materials...
