DISPLAY DRIVING DEVICE, DISPLAY DEVICE, AND DISPLAY DATA CORRECTION METHOD

摘要

PROBLEM TO BE SOLVED: To improve luminance unevenness on a display screen.SOLUTION: For a display part having pixels formed at intersections of data lines and scanning lines, a display driving device drives data lines. A data line driving signal driving each data line is a constant-current signal corresponding to set luminance. In this case, a correction value for display data is found. The correction value is generated using a difference between the set luminance and reference luminance and a lighting rate in a display data unit corresponding to one scanning line when the set luminance is lower than the reference luminance, and using the difference between the set luminance and reference luminance and a non-lighting rate in the display data unit when the set luminance is higher than the reference luminance. Then the displayed data is corrected with the correction value and based upon the display data after correction processing, a driving control signal specifying a driving period of the data line driving signal is generated.SELECTED DRAWING: Figure 13