Patent ID: 8344969

Claim:
A display device, comprising: first and second substrates arranged opposite to each other; a semiconductor device on the first substrate; an organic light emitting element on the first substrate, the organic light emitting element includes a first pixel electrode, an organic light emitting layer, and a second pixel electrode in a stacked configuration, the first pixel electrode, the organic light emitting layer, and the second pixel electrode being configured to be electrically connected to the semiconductor device on the first substrate; and an optical unit between the organic light emitting element and the second substrate, the optical unit including a liquid crystal layer and at least one sub-electrode on the second substrate, the second pixel electrode of the organic light emitting element and the at least one sub-electrode of the optical unit being configured to drive the liquid crystal layer, wherein the at least one sub-electrode is in a region of the display device opposite a region of the first substrate not having the organic light emitting element, and wherein a voltage applied to the second pixel electrode interacts separately with the first pixel electrode and the at least one sub-electrode.