| 摘要 |
A loading phenomenon in a plasma display panel is reduced and the image display quality is improved. For this purpose, image signal processing circuit (41) includes a number-of-lit-cells calculating section (60) for calculating the number of lit cells, load value calculating section (61) for calculating the load value in each discharge cell based on the calculation result by number-of-lit-cells calculating section (60), correction gain calculating section (62) for calculating the correction gain of each discharge cell based on the calculation result by load value calculating section (61), pattern detecting section (63) for determining the presence or the absence of occurrence of a loading phenomenon in a display image, selecting circuit (64) as a correction gain changing section for changing the correction gain based on the determination result by pattern detecting section (63), and correcting section (69) for correcting an image signal based on the correction gain after the change.
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