Patent ID: 7934855

Claim:
A flat light-emitting apparatus comprising: a plurality of light-emitting diodes for generating mixed light including a first-wavelength light with a wavelength substantially not less than 600 nm and a second-wavelength light with a wavelength substantially not greater than 480 nm, wherein said mixed light is devoid of a third-wavelength light, and the third wavelength light is green light; a wavelength conversion material for generating said third-wavelength light when irradiated by said second-wavelength light included in said mixed light; a first color filter for the passing of said first-wavelength light included in said mixed light; a second color filter for the passing of said second-wavelength light included in said mixed light; and a third color filter for the passing of said third-wavelength light and in combination with the wavelength conversion material, wherein the first color filter, the second color filter, and the third color filter are integral and separate the first-wavelength light and the second-wavelength light from the mixed light; wherein the amount of the second-wavelength light included in said mixed light is decreased after the third-wavelength light is produced.