An embodiment of the invention provides a color filter substrate which includes: a substrate having a surface; a light-shielding layer disposed on the surface; a first color filter layer; and a second color filter layer disposed on the surface, the light-shielding layer has a first sidewall in direct contact with the first color filter layer, the first sidewall and the surface form a first angle, the light-shielding layer has a second sidewall in direct contact with the second color filter layer, the second sidewall and the surface form a second angle, and the second angle is less than the first angle.