Patent ID: 7910939

Claim:
A light-emitting display device comprising: a light source comprising a semiconductor light-emitting device constituted by mounting a semiconductor light-emitting element on a base substance and sealing the semiconductor light-emitting element and fluorescent substances by a sealing resin; a light guiding plate for guiding light from the light source; and red, green and blue color filters for transmitting light from the light guiding plate and dividing the light; the light-emitting display device, wherein the semiconductor light-emitting element emits light having an emission wavelength only in a range of 390 to 420 nm, the light having visibility lower than light in a visible range more than 420 nm; only a first fluorescent substance, a second fluorescent substance and a third fluorescent substance are included in the fluorescent substances; the first fluorescent substance has red outgoing light having emission wavelengths with its main emission peak in a wavelength range of 600 to 670 nm; the second fluorescent substance has green outgoing light having emission wavelengths with its main emission peak in a wavelength range of 500 to 540 nm; the third fluorescent substance has blue outgoing light having emission wavelengths with its main emission peak in a wavelength range of 410 to 480 nm; the sum of colors of light emitted from the first, second and third fluorescent substances is a white color; outgoing light from the semiconductor light-emitting device has a wavelength distribution that matches spectral characteristics of the color filters; the following is adjusted so that the wavelength distribution of the outgoing light from the semiconductor light-emitting device matches spectral characteristics of the color filters: the emission wavelength of the semiconductor light-emitting element; the emission wavelength of the first fluorescent substance; the emission wavelength of the second fluorescent substance; the emission wavelength of the third fluorescent substance; the mixture proportions of the first, second and third fluorescent substances; and the proportion of the total weight of the first, second and third fluorescent substances to the weight of the sealing resin.