A display device is disclosed, which includes: a pixel group including a first pixel having a red sub-pixel and a blue sub-pixel; a second pixel having a green sub-pixel and a blue sub-pixel; a third pixel having a green sub-pixel and a blue sub-pixel; and a fourth pixel having a red sub-pixel and a blue sub-pixel. The first pixel is adjacent to the second pixel in a row direction. The first pixel is adjacent to the second pixel in a column direction. The fourth pixel is diagonal to the first pixel, and the fourth pixel is adjacent to the second pixel and the third pixel. In the pixel group, the blue sub-pixels are quantitatively more than the red sub-pixels, and the blue sub-pixels are quantitatively more than the green sub-pixels.