Patent ID: 8587619

Claim:
A display apparatus, comprising: a first display plate; a first electrode disposed on the first display plate, the first electrode to receive a first drive voltage; a second electrode disposed on the first display plate, the second electrode to receive a second drive voltage; a second display plate; a third electrode disposed on the second display plate, the third electrode to receive a common voltage; and a liquid crystal layer disposed between the first display plate and the second display plate, the liquid crystal layer comprising liquid crystal molecules configured to move according to a difference between the first drive voltage and the second drive voltage; wherein when a display state is to change from a first grayscale in a first grayscale region to a second grayscale in a second grayscale region, a return voltage, which is larger than the sum of the common voltage and a threshold voltage of the liquid crystal molecules, is applied to the first electrode and the second electrode to eliminate a voltage difference between the first electrode and the second electrode, the return voltage being applied before the first drive voltage and the second drive voltage, which correspond to the second grayscale, are applied to the first electrode and the second electrode, and wherein the first grayscale region is a region in which a light transmission ratio of the liquid crystal layer is greater than or equal to a first threshold value and the second grayscale region is a region in which the light transmission ratio of the liquid crystal layer is less than or equal to a second threshold value that is smaller than the first threshold value.