Display apparatus with a multi-level display comprising a display panel having a plurality of display devices that correspond with a plurality of microlens devices

A display apparatus, comprising:

• a display panel, comprising a plurality of display devices;
• a micro lens group located above a light-emitting side of the display panel, wherein the micro lens group comprises a plurality of micro lens devices, and the micro lens devices are disposed to correspond to the plurality of display devices, respectively, wherein a distance between a center of the micro lens device closer to a center of the display panel and a center of the corresponding display device is less than a distance between a center of the micro lens device farther from the center of the display panel and a center of the corresponding display device;
• and
• a liquid lens disposed on a side of the micro lens group away from the display panel, wherein the liquid lens is configured for performing multi-layer display for a suspension image by changing a phase of incident light.