Abstract
The displayed level of a plasma display panel (PDP) is often different from the
intended level because the luminance of a PDP is affected by the load (i.e., the number
of turned-on cells). Previous methods have attempted to reduce the difference by
predicting the luminance variation and compensating for the difference. The luminance
prediction and error compensation are difficult with a PDP that displays a limited
number of gray levels. This paper proposes a novel luminance prediction and error
compensation algorithm for a PDP with limited display levels. It overcomes the
shortcomings of the previous method by avoiding the gray errors caused by the luminance
reverse that occurs when the luminance of a lower sub-field becomes larger than that of
a higher sub-field. Furthermore, the prediction accuracy is improved by two additional
schemes, load stabilization and prediction. The mean absolute error and maximum error of
the proposed algorithm are reduced by 23.2% and 31.9%, respectively, compared with the
previous method.
© 2010 IEEE
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