In a high-resolution liquid crystal display with improved side visibility having a color filter on array, a unit pixel includes first and second sub-pixels in which liquid crystals are continuously aligned and electrically isolated. A first pixel electrode for implementing the first sub-pixel is formed on a color filter layer and a second protective layer, and a second pixel electrode for implementing the second sub-pixel is formed between the color filter layer and the second protective layer. The second protective layer the second protective layer formed on the second pixel electrode lowers the electric field of the second sub-pixel, so that a liquid crystal application voltage applied to the second sub-pixel is lower than the voltage applied to the first sub-pixel. Accordingly, the transmittances of the first and second sub-pixels in the unit pixel are different from each other, to improve side visibility.