Image distortion calibration device, display device and distortion calibration method

A display device comprising:

• a display panel which outputs light for display of an image;
• at least one multi-channel lens disposed on a light emitting path of the light from the display panel to provide a multi-channel, wherein each of the at least one multi-channel lens includes a plurality of sub-lenses which provides a plurality of channels, and image display light emitted from different areas of a front surface of the display panel pass through respectively channels of the multi-channel lens through different paths;
• a memory which stores one or more instructions;
• and
• a processor which executes the one or more instructions stored in the memory,
• wherein the processor executes the one or more instructions to generate an output image by applying calibration mapping data to an original image and provides the output image to the display panel, and
• the calibration mapping data is generated based on calibration data for compensating an error for each channel provided by the multi-channel lens.

A distortion calibration method of a multi-channel lens including a plurality of sub-lenses which provides a plurality of channels, the distortion calibration method comprising:

• acquiring a plurality of test images generated by capturing an image, which is displayed on a display panel by passing through the multi-channel lens, for each channel of the multi-channel lens by a camera and a plurality of reference images generated for each channel with respect to the multi-channel lens and the display panel, wherein image display light emitted from different areas of a front surface of the display panel pass through respectively channels of the multi-channel lens through different paths;
• acquiring an error per channel between the plurality of test images and the plurality of reference images with respect to each channel and generating calibration data for compensating the error per channel;
• and
• generating calibration mapping data based on reference mapping data and the calibration data.