An ultraviolet type white color light emitting device (Q) including a 340
nm-400 nm ultraviolet InGaN-LED, a first fluorescence plate of ZnS doped
with more than 1.times.10.sup.17 cm.sup.-3 Al, In, Ga, Cl, Br or I for
absorbing ultraviolet rays and producing blue light (fluorescence), a
second fluorescence plate of ZnSSe or ZnSe doped with more than
1.times.10.sup.17 cm.sup.-3 Al, In, Ga, Cl, Br or I for absorbing the blue
light, producing yellow light (fluorescence) and synthesizing white color
light by mixing the yellow light with the blue light.
A blue light type white color light emitting device (R) including a 410
nm-470 nm blue light InGaN-LED, a fluorescence plate of ZnS.sub.x
Se.sub.1-x (untreated 0.2.ltoreq.x.ltoreq.0.6; heat-treated
0.3.ltoreq.x.ltoreq.0.67) doped with more than 1.times.10.sup.17 cm.sup.-3
Al, In, Ga, Cl, Br or I for absorbing the blue light, producing 568 nm-580
nm yellow light (fluorescence) and synthesizing white color light by
mixing the yellow light with the blue LED light.
