A display quality testing expert with a background in physics and mathematics, likely working in the field of display technology research and development, possibly with experience in image quality evaluation and testing methodologies.
Given the observed non-uniformity in colorimetric characteristics across the panel's active area, especially at the periphery under prolonged operation, it's strongly recommended to perform an additional and comprehensive analysis of the panel's manufacturing process to identify and mitigate any further occurrences of this problematic issue, which could, if not addressed, lead to significant customer dissatisfaction.