Production manner of the white luminous die LED lamp and production manner of the back light which uses that and production mannered null luminous wavelength

摘要

PROBLEM TO BE SOLVED: To provide a process for producing a white LED lamp using an LED emitting an ultraviolet light that can afford both high color rendering properties and high brightness by improving the combination of a blue light emitting phosphor, a green light emitting phosphor and a red light emitting phosphor.;SOLUTION: The process for producing an LED lamp 1 emitting a white light is provided with an LED chip 2 having an emission wavelength in a range of not less than 360 nm to not more than 440 nm and a light emitting portion comprising a blue light emitting phosphor, a green light emitting phosphor and a red light emitting phosphor and emitting a white light when excited by a light emitted from the LED chip 2 wherein as the blue light emitting phosphor is used at least one kind selected from the group consisting of an Eu-activated halophosphate phosphor and an Eu-activated aluminate phosphor; as the green light emitting phosphor is used an Au and Al-activated zinc sulfide phosphor and as the red light emitting phosphor is used at least one kind selected from the group consisting of an Eu and Sm-activated acid lanthanum sulfide phosphor and a Cu and Mn-activated zinc sulfide phosphor, which comprises the step of combining the blue light emitting phosphor, the red light emitting phosphor and the green light emitting phosphor.;COPYRIGHT: (C)2007,JPO&INPIT