White phosphor, light emission device including the same,...

Details White phosphor, light emission device including the same,... White phosphor, light emission device including the same,...

2011-05-31

2011-05-31

Patel, Nimeshkumar D (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C252S30160S, C252S30140S, C252S30140R

Reexamination Certificate

active

07952266

ABSTRACT:
A white phosphor, and a light emission device including the white phosphor, and a display device including the white phosphor, the white phosphor including 40 to 45 parts by weight of a blue phosphor selected from the group consisting of ZnS:(Ag,Cl), ZnS:(Ag,Al), ZnS:(Ag,Al,Cl), and combinations thereof; 30 to 40 parts by weight of a green phosphor selected from the group consisting of ZnS:(Cu,Al), ZnS:(Cu,Au,Al), and combinations thereof; and 20 to 25 parts by weight of a red phosphor selected from the group consisting of Y2O3:Eu, Y2O3:(Eu,Tb), Y2O2S:Eu, Y2O2S:(Eu,Tb), and combinations thereof. The white phosphor shows a color temperature of from 12,000K and 14,000K.

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Office Action issued in corresponding European Patent Application No. 08161961.1 dated Nov. 11, 2008.
SIPO Office Action dated Feb. 23, 2011 of the corresponding Chinese Patent Application No. 200810129750.3 and English translation thereof (record only).

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