Method for displaying a three-dimensional image and display apparatus for performing the method

A method for displaying a three-dimensional image, the method comprising:

• sequentially displaying a left frame image corresponding to a left eye and a right frame image corresponding to a right eye on a display panel;
• providing a first light to a plurality of display blocks of the display panel when the plurality of display blocks each display only one of the left frame image and the right frame image;
• providing a second light to a display block of the display panel when the display block displays a mixed image which includes a left eye image of the left frame image corresponding to the left eye and a right eye image of the right frame image corresponding to the right eye;
• and
• providing the light to the display block of the display panel when the display block displays only one of the left eye image and the right eye image,
• wherein the first light corresponds to an on-state of a light source and the second light corresponds to an off-state of the light source.