The first sub-pixels 201, the second sub-pixels 202, and the third pixels 203 may be arranged alternately along a fifth direction J to form fifth pixel groups 20E. The fifth pixel groups 20E may be arranged sequentially along a sixth direction K.

A shift direction M of the light from the plurality of sub-pixels 20 by the pixel shift unit 30 may be same as the third direction G.

For each fifth pixel group 20E, along the shift direction M, a second display pixel 4021 corresponding to a first sub-pixel 201 may have an orthographic projection on the display panel 10 overlapping an orthographic projection of a first display pixel 4012 corresponding to an adjacent second sub-pixel 202 on the display panel 10; an orthographic projection of a second display pixel 4022 corresponding to a second sub-pixel 202 may overlap an orthographic projection of a first display pixel 4013 with respect to an adjacent third sub-pixel 203 on the display panel 10; and an orthographic projection of a second display pixel 4023 with respect to a third sub-pixel 203 on the display panel 10 may overlap an orthographic projection of a first display pixel 4011 with respect to an adjacent first sub-pixel 201 on the display panel 10.