IMAGE STICKING CONTROLLER AND METHOD FOR OPERATING THE SAME

摘要

An image sticking controller includes a gamma conversion unit configured to gamma-convert gray scale values respectively corresponding to a plurality of pixels, and to output the gamma-converted gray scale values as gamma conversion values, a data accumulation unit configured to accumulate the gamma conversion values into an accumulation data, the accumulation data including a minimum accumulation value, a maximum difference value indicating a difference between the minimum accumulation value and a maximum accumulation value, and difference values indicating respective differences between the minimum accumulation value and an accumulation value of each of the pixels, an image sticking analysis unit configured to output an image sticking decrease control signal when the maximum difference value is greater than a reference value, and a data conversion unit configured to convert the gray scale values in response to the image sticking decrease control signal, such that image sticking is reduced.

主权项

1. An image sticking controller, comprising:
a gamma conversion unit configured to gamma-convert gray scale values respectively corresponding to a plurality of pixels, and to output the gamma-converted gray scale values as gamma conversion values; a data accumulation unit configured to accumulate the gamma conversion values into an accumulation data, the accumulation data including:
a minimum accumulation value,a maximum difference value indicating a difference between the minimum accumulation value and a maximum accumulation value, anddifference values indicating respective differences between the minimum accumulation value and an accumulation value of each of the pixels; an image sticking analysis unit configured to output an image sticking decrease control signal when the maximum difference value is greater than a reference value; and a data conversion unit configured to convert the gray scale values in response to the image sticking decrease control signal, such that image sticking is reduced.