Display apparatus and method incorporating sub-pixel aware shifting and overlap compensation

A method of displaying, via a display apparatus comprising an image renderer and a liquid-crystal device, the image renderer having a plurality of pixels, a given pixel comprising at least three sub-pixels, the liquid-crystal device comprising a liquid-crystal structure and a control circuit, wherein the liquid-crystal structure is arranged in front of an image-rendering surface of the image renderer, the method comprising:

• electrically controlling the liquid-crystal structure, via the control circuit, to shift light emanating from a given sub-pixel of the image renderer to a plurality of target positions on an image plane according to a shifting sequence in a repeated manner;
• processing an input sequence of input image frames to generate an output sequence of output image frames, wherein the step of processing a given input image frame to generate a given output image frame comprises:
• determining a given target position on the image plane to which the light emanating from the given sub-pixel of the image renderer is to be shifted during display of the given output image frame, based on the shifting sequence;
• and
• adjusting an input colour value of the given sub-pixel provided in the given input image frame to generate an output colour value of the given sub-pixel for the given output image frame, based on an output colour value of at least one other sub-pixel of the image renderer whose light overlaps with the given target position on the image plane during display of at least one previous output image frame, and a retention coefficient between a colour of the at least one other sub-pixel and a colour of the given sub-pixel;
• and
• displaying the output image frames in the output sequence.