A video processing device comprising: a determination unit configured to receive an original video and determine a motion between adjacent frames of the original video; a control signal generation unit configured to generate a control signal based on a determination result by the determination unit, the control signal including a first signal and a second signal; a display image generation unit configured to receive the original video and generate, based on the determination result by the determination unit, a display image from the original video; and an addition unit configured to generate a display video signal by adding the control signal to the display image, the addition unit configured to substitute the first pixel of the first line of the display image with the control signal, wherein when the motion is larger than a predetermined threshold, the determination unit determines not to perform the pixel shift display, the display image generation unit generates the display image of one frame from one frame image of the original video, and the control signal generation unit generates the control signal so that the first signal indicates OFF of the pixel shift display and the second signal is a constant value, and when the motion is smaller than the predetermined threshold, the determination unit determines to perform the pixel shift display, the display image generation unit generates the display image of two sub-frames from one frame image of the original video, and the control signal generation unit generates the control signal so that the first signal indicates ON of the pixel shift display and a first pixel display position value and a second pixel display position value are alternatively repeated at a given period in the second signal, wherein the first and the second pixel display position values are shifted for respectively projecting the two sub-frames shifted on a screen by half a pixel. a determination unit configured to receive an original video and determine a motion between adjacent frames of the original video; a control signal generation unit configured to generate a control signal based on a determination result by the determination unit, the control signal including a first signal and a second signal; a display image generation unit configured to receive the original video and generate, based on the determination result by the determination unit, a display image from the original video; and an addition unit configured to generate a display video signal by adding the control signal to the display image, the addition unit configured to substitute the first pixel of the first line of the display image with the control signal, wherein when the motion is larger than a predetermined threshold, the determination unit determines not to perform the pixel shift display, the display image generation unit generates the display image of one frame from one frame image of the original video, and the control signal generation unit generates the control signal so that the first signal indicates OFF of the pixel shift display and the second signal is a constant value, and when the motion is smaller than the predetermined threshold, the determination unit determines to perform the pixel shift display, the display image generation unit generates the display image of two sub-frames from one frame image of the original video, and the control signal generation unit generates the control signal so that the first signal indicates ON of the pixel shift display and a first pixel display position value and a second pixel display position value are alternatively repeated at a given period in the second signal, wherein the first and the second pixel display position values are shifted for respectively projecting the two sub-frames shifted on a screen by half a pixel. the determination unit determines not to perform the pixel shift display, the display image generation unit generates the display image of one frame from one frame image of the original video, and the control signal generation unit generates the control signal so that the first signal indicates OFF of the pixel shift display and the second signal is a constant value, and when the motion is smaller than the predetermined threshold, the determination unit determines to perform the pixel shift display, the display image generation unit generates the display image of two sub-frames from one frame image of the original video, and the control signal generation unit generates the control signal so that the first signal indicates ON of the pixel shift display and a first pixel display position value and a second pixel display position value are alternatively repeated at a given period in the second signal, wherein the first and the second pixel display position values are shifted for respectively projecting the two sub-frames shifted on a screen by half a pixel.