Abstract: A mura inspection device may include; an optical meter configured to measure luminance of a display region and generate a first luminance matrix, a luminance preprocessor configured to detect a distortion region of the display region in relation to the first luminance matrix, and generate a second luminance matrix by adjusting luminance of the distortion region, a mura generator configured to generate a mura matrix in relation to a difference between the second luminance matrix and a reference value, and an encoder configured to generate encoding data by applying dimensionality reduction to the mura matrix.

Abstract: An operation method of a display driving circuit configured to drive a display panel includes receiving input data from an external device, determining a gray level period corresponding to the input data from among a plurality of gray level periods, based on a plurality of thresholds, calculating a final compensation value based on the determined gray level period and a reference look-up table generated based on a reference gray level, performing MURA compensation on the input data based on the final compensation value to generate final data, and controlling the display panel based on the final data.

Abstract: An operation method of a display driving circuit configured to drive a display panel includes receiving input data from an external device, determining a gray level period corresponding to the input data from among a plurality of gray level periods, based on a plurality of thresholds, calculating a final compensation value based on the determined gray level period and a reference look-up table generated based on a reference gray level, performing MURA compensation on the input data based on the final compensation value to generate final data, and controlling the display panel based on the final data.