Patent ID: 8599126

Claim:
A method of local dimming of a light source including a plurality of light-emitting blocks, the method comprising: determining a dimming level of each light-emitting block of the plurality of light-emitting blocks; calculating a compensation dimming level of a predetermined light-emitting block based on a dimming level of peripheral light-emitting blocks disposed around a periphery of the predetermined light-emitting block; and driving the predetermined light-emitting block based on the compensation dimming level, wherein an average dimming level is calculated based on an L×L block window (wherein L is a natural number), wherein a central block of the L×L block window corresponds to the predetermined light-emitting block, and the compensation dimming level Ds(c) of the predetermined light-emitting block is calculated by: Ds ⁡ ( c ) = D ⁡ ( c ) + k ⁡ ( D _ - D ⁡ ( c ) ) ; 0 ≤ k ≤ 1 , ⁢ D _ = ∑ i = 1 , i ≠ c L × L ⁢ D ⁡ ( i ) ( L × L ) - 1 where D(c) represents a compensation dimming level of the predetermined light-emitting block, and D represents an average dimming level of peripheral blocks of the central block.