| abstract |
A white LED lamp in which the amount of UV light in emitted white light and the amount of heat emitted are reduced, and a backlight and an illumination device using the white LED lamp are provided. A white LED lamp according to the present invention includes a conductive portion, a light emitting diode chip mounted on the conductive portion and emitting primary light having a peak wavelength of not less than 360 nm and not more than 420 nm, and the light emitting diode chip. 20 and the bonding wire 25 are sealed, the primary light is received in the transparent resin layer 30 made of the first transparent resin cured product and the second transparent resin cured product, and has a longer wavelength than the primary light. A phosphor layer 40 in which a phosphor powder 42 that emits secondary light is dispersed, and the conductive portion 12 is provided with a light reflecting layer 16 on the surface, and the first transparent tree cured product and The second transparent resin cured product is made of a silicone resin, and the energy of the primary light contained in the emitted light is 0.4 mW / lm or less, and at the same time, the luminous efficiency of the white LED lamp is 20 lm / W or more. The features. [Selection] Figure 1 |