| 摘要 |
PROBLEM TO BE SOLVED: To provide a panel picture quality inspecting device with which a fluctuation in chromaticity brightness measurement is suppressed, a false report incidence rate in the automatic inspection for a coated phosphor by the chromaticity brightness measurement is remarkably reduced thereby reliability of automatic inspection is enhanced. SOLUTION: In a calibration step of obtaining the specified constant matrix A before measurement for obtaining a tristimulus value by the output signal levels, R, G, and B of a color video camera and the specified constant matrix A, the specified range on chromaticity distribution for each color is indicated at a plurality of points to obtain the specified constant matrix A in the chromaticity brightness measurement based on the plurality of points. COPYRIGHT: (C)2004,JPO
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