Structure of illumination apparatus
View Patent ↗A structure of an illumination apparatus is described. The structure has a light guide rod arranged at one lateral side of a light guide plate, and plural light sources located below the light guide rod. The light guide rod has at least one tilt plane formed thereon in order to guide the light emitted from the light sources to the light guide plate such that uniform planar light could be generated therefrom. A plurality of notches is formed in the tilt plane, and a plurality of depressed or protruding dispersion dots is formed on an out-going plane of the light guide rod. The structure further includes an anti-reflection layer positioned between the light guide rod and the light guide plate.
1. A structure of an illumination apparatus, said structure comprising:
a light guide rod arranged at one lateral side of a light guide plate, said light guide rod comprising at least one tilt plane, a plurality of horizontal notches being formed in said tilt plane; and
a plurality of light sources located below said light guide rod, wherein said tilt plane directly guides light emitted from said light sources to said light guide plate and uniform planar light emitted from said light guide plate is therefore generated.
2. The structure according to claim 1 , wherein a cross-section of said light guide rod is in a shape of a pentagon by truncating a corner of a rectangle.
3. The structure according to claim 1 , wherein a cross-section of said light guide rod is in a shape of a pentagon by truncating two adjacent corners of a rectangle.
4. The structure according to claim 1 , wherein a cross-section of said light guide rod is in a shape of a hexagon by truncating two adjacent corners of a rectangle.
5. The structure according to claim 4 , wherein a plurality of vertical notches is formed in a vertical plane disposed between two tilt planes of said hexagon.
6. The structure according to claim 1 , wherein a cross-section of said light guide rod is in a shape of a right triangle.
7. The structure according to claim 1 , wherein a plurality of dispersion dots are formed on an out-going plane of said light guide rod for dispersing light emitted from said light guide rod to said light guide plate.
8. The structure according to claim 7 , wherein said dispersion dots are selected from a group consisting of depressed dispersion dots and protruding dispersion dots.
9. The structure according to claim 1 , wherein said structure further comprises an anti-reflection layer positioned between said light guide rod and said light guide plate.
10. A structure of a light guiding system adapted for a liquid crystal display panel, said structure comprising:
a light guide plate;
at least two light guide rods arranged at two opposite lateral sides of said light guide plate, a plurality of dispersion dots being disposed on an out-going plane of said light guide rod, each light guide rod comprising at least one tilt plane, and a plurality of horizontal notches being disposed in said tilt plane; and
a plurality of light sources located below said light guide rod, wherein said tilt plane directly guides light emitted from said light sources to said light guide plate and uniform planar light emitted from said light guide plate is therefore generated.
11. The structure according to claim 10 , wherein a cross-section of said light guide rod is in a shape of a pentagon by truncating a corner of a rectangle.
12. The structure according to claim 10 , wherein a cross-section of said light guide rod is in a shape of a pentagon by truncating two adjacent corners of a rectangle.
13. The structure according to claim 10 , wherein a cross-section of said light guide rod is in a shape of a hexagon by truncating two adjacent corners of a rectangle.
14. The structure according to claim 13 , wherein a plurality of vertical notches is formed in a vertical plane disposed between two tilt planes of said hexagon.
15. The structure according to claim 10 , wherein a cross-section of said light guide rod is in a shape of a right triangle.
16. The structure according to claim 10 , wherein said dispersion dots are adapted for dispersing light emitted from said light guide rod to said light guide plate.
17. The structure according to claim 10 , wherein said dispersion dots are selected from a group consisting of depressed dispersion dots and protruding dispersion dots.
18. The structure according to claim 10 , wherein said structure further comprises an anti-reflection layer positioned between said light guide rod and said light guide plate.
19. The structure according to claim 18 , wherein a refraction index of said anti-reflection layer ranges from about 1.4 to 1.7.
20. The structure according to claim 19 , wherein said light sources are spot light sources and separated by an equal distance.