A display apparatus includes a display panel having a first display region, a second display region and an opening region. When the display apparatus is in a black state, the first display region has a first luminance value I1, the second display region and the opening region have a first luminance difference value DI1, the first display region and the second display region have a second luminance difference value DI2, and each of a ratio of DI1 to I1 and a ratio of DI2 to I1 ranges from 0.001 to 0.1.