Light source apparatus and display apparatus
View Patent ↗A light source apparatus and display apparatus are provided. The light source apparatus includes light-emitting devices for emitting lights of at least more than two kinds of colors and one light-emitting device group composed of the light-emitting devices located close to each other, wherein each of the light-emitting device group includes a plurality of light-emitting devices for emitting lights of at least more than one kind of color of more than two kinds of colors, a plurality of light-emitting devices being disposed such that central positions of light-emitting devices for emitting lights of respective colors are substantially matched with each other.
1. A light source apparatus comprising:
a light-emitting device group composed of a plurality of light-emitting diode chips for emitting lights of at least three colors, wherein for each of the at least three colors, the light-emitting diode chips for emitting light of that color form a light-emitting device color set, and wherein the light-emitting diode chips are located close to each other and are disposed symmetrically with respect to a central point such that, for each light-emitting device color set, a central position of the light-emitting diode chips forming the light-emitting device color set is coincident with the central point.
2. A light source apparatus according to claim 1 , wherein said light source apparatus includes a plurality of said light-emitting device groups.
3. A light source apparatus according to claim 1 , wherein said light-emitting device group includes an optical member having a substantially conical reflective surface disposed over said central point to reflect or refract light emitted from the light-emitting diode chips so that a radiated direction of said emitted light is changed.
4. A light source apparatus according to claim 3 , wherein said light-emitting device group does not include a light-emitting diode chip disposed at said central point.
5. A light source apparatus according to claim 3 , wherein said light-emitting device group includes said light-emitting diode chips disposed from said central point at an equal distance.
6. A light source apparatus according to claim 1 , wherein said light-emitting device group includes at least a light-emitting diode chip for emitting red light, a light-emitting diode chip for emitting green light and a light-emitting diode chip for emitting blue light.
7. A light source apparatus according to claim 6 , wherein said light-emitting device group includes a plurality of light-emitting diode chips for emitting green lights.
8. A light source apparatus according to claim 6 , wherein said light-emitting device group includes a plurality of light-emitting diode chips for emitting red lights and a plurality of light-emitting diode chips for emitting green lights.
9. A light source apparatus according to claim 1 , wherein said light-emitting device group includes said light-emitting diode chips for emitting lights of said at least three colors in which a light-emitting diode chip for emitting light of one color has an area larger than those of light-emitting diode chips for emitting lights of other colors.
10. A light source apparatus according to claim 6 , wherein said light-emitting diode chip for emitting green light has an area larger than those of light-emitting diode chips for emitting lights of other colors.
11. A light source apparatus according to claim 6 , wherein said light-emitting diode chip for emitting green light and said light-emitting diode chip for emitting red light each have areas larger than that of said light-emitting diode chip for emitting blue light.
12. A display apparatus comprising:
a display portion; and
a light source apparatus for illuminating said display portion from a back side, wherein said light source apparatus includes a light-emitting device group composed of a plurality of light-emitting diode chips for emitting lights of at least three colors, wherein for each of the at least three colors, the light-emitting diode chips for emitting light of that color form a light-emitting device color set, and wherein the light-emitting diode chips are located close to each other and are disposed symmetrically with respect to a central point such that, for each light-emitting device color set, a central position of the light-emitting diode chips forming the light-emitting device color set is coincident with the central point.
13. A display apparatus according to claim 12 , wherein said display portion is a color liquid-crystal display panel.
14. A light source apparatus according to claim 1 , wherein one of the light-emitting diode chips is disposed at said central point.
15. A light source apparatus according to claim 14 , wherein said light-emitting device group further includes four light-emitting devices-diode chips disposed from said central point at an equal distance.
16. A display apparatus according to claim 12 , wherein one of the light-emitting diode chips is disposed at said central point.
17. A display apparatus according to claim 16 , wherein said light-emitting device group further includes four light-emitting diode chips disposed from said central point at an equal distance.