Three-dimensional display device and driving method thereof

A driving method of a three-dimensional display device, wherein the three-dimensional display device comprises a liquid crystal display panel and an electroluminescent display panel arranged under the liquid crystal display panel, the electroluminescent display panel comprises a plurality of first sub-pixels arranged in array, and the liquid crystal display panel comprises a plurality of second sub-pixels arranged in array, the driving method comprises:

• in one frame of display time, controlling the plurality of first sub-pixels in the electroluminescent display panel to form light emitting areas and black areas arranged alternately at least in a row direction, and wherein, at least every two second sub-pixels in the liquid crystal display panel correspond to one light emitting area, in a three-dimensional display mode, the second sub-pixels corresponding to a same light emitting area are used for displaying a left eye view and a right eye view respectively;
• in a next frame of display time adjacent to said one frame of display time, interchanging positions of the light emitting areas and the black areas in the electroluminescent display panel, and, controlling the second sub-pixel in the liquid crystal display panel for displaying the left eye view in said one frame of display time to display the right eye view in said next frame of display time and controlling the second sub-pixel in the liquid crystal display panel for displaying the right eye view in said one frame of display time to display the left eye view in said next frame of display time,
• wherein, in the three-dimensional display mode, the second sub-pixel for displaying the left eye view and the second sub-pixel for displaying the right eye view that correspond to the same light emitting area display different gray scale information, and
• wherein a sum of said one frame of display time and said next frame of display time is not greater than a predetermined maximum time,
• wherein, in a two-dimensional display mode, the second sub-pixel for displaying the left eye view and the second sub-pixel for displaying the right eye view that correspond to the same light emitting area are controlled to display the same gray scale information.