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

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

• providing light at a maximum luminance to a display block during a first period in which a left-eye or a right-eye image is displayed on the display block;
• providing the light at a luminance gradually decreasing from the maximum luminance to a preset luminance to the display block during a second period in which a transition image between the left-eye or the right-eye image and a black image is displayed on the display block;
• and
• blocking the light from the display block during a third period including a period in which the black image is displayed on the display block and prior to a period in which a left-eye or a right-eye image of a following frame is displayed on the display block.

A display apparatus comprising:

• a display panel which displays an image;
• a light-source part including a plurality of light-emitting blocks arranged in a direction scanning the image, wherein each of the light-emitting blocks provides light to a display block of the display panel corresponding thereto;
• and
• a light-source driving part which drives the light-source part such that the light-source part provides light at a maximum luminance to a display block during a first period in which a left-eye or a right-eye image is displayed on the display block, the light-source part provides the light at a luminance gradually decreasing from the maximum luminance to a preset luminance to the display block during a second period in which a transition image between the left-eye or the right-eye image and a black image is displayed on the display block, and the light-source part blocks the light from the display block during a third period including a period in which the black image is displayed on the display block and prior to a period in which a left-eye or a right-eye image of a following frame is displayed on the display block.