According to one embodiment, three columns of a first and second columns of first and second color pixels, and a third column of third and fourth color pixels arranged alternately, are repeatedly provided along a first direction. The first set of a first, a second and a third color pixels along the first direction, and the second set of a first, a second and a fourth color pixels along the first direction are each defined as a composite color unit pixel. Pixel signals are supplied to the pixels of the third columns in a pattern that polarities of the pixel signals of the pixels of the third columns along the first direction are . . . , +, +, −, −, +, +, −, −, +, +, −, −, . . . .