Patent ID: 7967460

Claim:
A planar light source comprising: a light emission region formed by arrangements of a plurality of light emitting devices, the light emission region including first to n th separate parts each having a center of the light emission region as one of vertexes thereof, where n is a natural number of 3 or higher, wherein the first separate part includes a plurality of light emitting devices having a two-dimensional arrangement structure in first and second directions which are different from each other, and a pitch in the first direction is different from a pitch in the second direction in at least a portion of the two-dimensional arrangement structure, and light emitting devices included in each of the second to i th separate parts have an arrangement structure obtained by a clockwise or counter-clockwise rotation of the arrangement structure of the light emitting devices of the first separate part by an angle of ((i−1)/n) ×360° about the center of the light emission region, wherein i is a natural number which satisfies 2≦i≦n.