| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a phosphor excited with light of a prescribed wavelength and emitting light and to provide a light-emitting diode having a surrounding part containing the phosphor and surrounding an LED (light-emitting diode) chip and to provide a method for producing the phosphor. <P>SOLUTION: There are provided the LED chip 2 and an LED chip sealing part 5 made of an epoxy resin and containing the phosphor prepared by mixing Y<SB>2</SB>S<SB>3</SB>with Ga<SB>2</SB>S<SB>3</SB>and Ce<SB>2</SB>S<SB>3</SB>so as to afford 3(1-x):b:3x molar ratio of Y, Ga and Ce (wherein, 0.001≤x≤0.1; and 4.9≤b≤5.1) and baking the resultant mixture, surrounding the LED chip 2. <P>COPYRIGHT: (C)2004,JPO |
