A display apparatus includes a display panel configured to selectively display a two-dimensional image and a three-dimensional image, a light-source unit providing the display panel with light, and a liquid crystal (“LC”) barrier panel disposed between the display panel and the light-source unit and including a unit barrier part. The unit barrier part includes a plurality of barrier electrodes driven to form a barrier blocking the light and an opening transmitting the light. An LC lens panel is disposed between the LC barrier panel and the display panel and includes a unit lens part, the unit lens part including a plurality of lens electrodes which is driven as a unit lens.