A pixel structure comprises a plurality of first pixels, inverted first pixels, second pixels, inverted second pixels, third pixels and inverted third pixels, wherein in a first line of pixels, the first pixel, second pixel and third pixel are arranged horizontally in a circular manner, and in a second line of pixels, the inverted first pixel, inverted second pixel and inverted third pixel are arranged horizontally in a circular manner, wherein the first pixel comprises a first subpixel and an inverted second subpixel, the second pixel comprises a third subpixel and an inverted first subpixel, the third pixel comprises a second subpixel and an inverted third subpixel, the first subpixel, second subpixel, and third subpixel are different from each other, and are selected from red, green, and blue subpixels, respectively, wherein the red, green and blue subpixels are in the shape of a congruent isosceles triangle.