| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting diode having little color uneveness and that is low-priced. <P>SOLUTION: The light-emitting diode uses one kind or several kinds of light-emitting materials, to convert the emitted wavelength of an LED as a primary light-emitting source and then emit a secondary emission wavelength. A thin film, made mainly of a fluorescent material, is attached a light extraction surface of the LED as the primary light-emitting source, to convert the wavelength and emit the secondary emission wavelength. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
