| 摘要 |
PROBLEM TO BE SOLVED: To provide a phosphor inspection instrument and inspection method of a plasma display panel. SOLUTION: The phosphor inspection instrument of the plasma display panel comprises a ultra violet lamp 140 for irradiating ultra violet light to the plasma display panel that is coated with at least one phosphor 128 to make the phosphor 128 emit light, a camera 130 that transforms the light emitted from the phosphor 128 by the ultra violet lamp 140 into an image signal, and a micro computer 150 that judges the presence or absence of the failure of the phosphor 128 by reading the image signals transformed by the camera 130. A filter 135 is placed between the phosphor 128 and the camera 130, which transmits light emitted from each phosphors 128 progressively depending on the wave length of each lights so as to increase the intensity difference of the lights. Thus, failures such as color mixers or dark points of the phosphor is quickly and accurately inspected, and the production cost and maintenance cost of the phosphor are reduced. COPYRIGHT: (C)2004,JPO
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