Patent ID: 8197090

Claim:
A backlight unit comprising: a plurality of light emitting groups, each of which includes a plurality of light emitting diode packages, wherein at least one of the plurality of light emitting groups include at least two light emitting diode packages emitting different colors of light, and wherein each of the plurality of the light emitting diode packages comprises: a housing with a seating recess formed therein; at least one light emitting diode seated in the seating recess; and a lens having a horizontal section and a convexed upper surface above the horizontal section, the lens covering an upper part of the at least one light emitting diode, the lens having a beam angle with a Full Width at Half Maximum (FWHM) in the range of at least 120 degrees, wherein the lens has a height that ranges 1/10 to 4/15 of a diameter of the horizontal section, the height being a perpendicular distance from the horizontal section to an apex of the convexed upper surface.