Patent ID: 9615076
Date: 2017-04-04
CPC Classifications: G09G,H04N

Claim:
1. A display device comprising: a frame rate determining unit configured to receive an input image signal and configured to select, based on the input image signal, one of a first frame rate and a second frame rate to be a selected frame rate, the second frame rate being equal to a natural number times the first frame rate, the natural number being greater than or equal to 2; and a display panel configured to display a first image according to at least a control signal generated based on the selected frame rate, wherein the frame rate determining unit is configured to calculate a vertical resolution quantity value by adding absolute values of gray differences of adjacent rows for the respective columns of the display panel based on the input image signal, wherein the frame rate determining unit is configured to select the first frame rate to be the selected frame rate if the vertical resolution quantity value is larger than a vertical resolution reference value, and wherein the frame rate determining unit is configured to select the second frame rate to be the selected frame rate if the vertical resolution quantity value is less than or equal to the vertical resolution reference value.