Stereoscopic display device and stereoscopic display control method

A stereoscopic display control method for performing a display control to a stereoscopic display device comprising a display unit and a layering-control unit on a light exiting side of the display unit, wherein the layering-control unit comprising a microlens drive electrode array and a microlens array being controllable, and wherein microlenses in the microlens array being controllable are driven by drive electrodes of the microlens drive electrode array and exhibit respective focal lengths corresponding to voltages of the drive electrodes of the microlens drive electrode array;

• the microlens array comprises a plurality of microlens sets, each microlens set being used to independently image different display regions of the display unit respectively,
• the stereoscopic display control method comprises steps as follows:
• acquiring a multi-plane stereoscopic display signal of the current frame, the multi-plane stereoscopic display signal comprises a display signal of N layers of sub-images for realizing multi-plane stereoscopic display which are obtained by an image split of the current frame, where N is an integer greater than or equal to 2, and the sub-image comprises effective display pixels and non-effective display pixels;
• determining, according to the multi-plane stereoscopic display signal, a microlens set Li, i∈[1, N] which is in correspondence with the effective display pixel positions contained in each layer of sub-image Mi;
• dividing a display time of the current frame into N time segments;
• performing following time-sharing driving operations in each time segment Ti:
• controlling the display unit to display the sub-image Mi corresponding to the current time segment Ti;
• controlling the focal length of the microlens in the microlens set Li such that the display unit is imaged on a image plane Pi through the microlens set Li;
• the image plane Pi is a display plane corresponding to the sub-image Mi when a multi-planar stereoscopic display is realized.