Abstract: A method performed by a mura compensation data generation device, the method includes: generating optical information for a plurality of pixels of a display panel operating based on test data; generating, based on the optical information, raw mura compensation data to compensate input video data provided to the display panel; extracting a high spatial frequency component and a low spatial frequency component from the raw mura compensation data; generating a compressed high spatial frequency component, by compressing, based on a first compression algorithm, the high spatial frequency component; generating a compressed low spatial frequency component, by compressing, based on a second compression algorithm, the low spatial frequency component; and storing the compressed high spatial frequency component and the compressed low spatial frequency component in an external storage circuit.

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: A method performed by a mura compensation data generation device, the method includes: generating optical information for a plurality of pixels of a display panel operating based on test data; generating, based on the optical information, raw mura compensation data to compensate input video data provided to the display panel; extracting a high spatial frequency component and a low spatial frequency component from the raw mura compensation data; generating a compressed high spatial frequency component, by compressing, based on a first compression algorithm, the high spatial frequency component; generating a compressed low spatial frequency component, by compressing, based on a second compression algorithm, the low spatial frequency component; and storing the compressed high spatial frequency component and the compressed low spatial frequency component in an external storage circuit.

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.