| 摘要 |
In the case where a first bit number of a picture signal entered to a driver unit for driving an image display device is larger than a second bit number of display data outputted from the driver unit, a display method for displaying an image in such a gradation of the first bit number on the image display device is realized by that a first region and a second region are provided within an entire gradation region of the driver unit. In the first region, the FRC is carried out by defining the first frame number as one set so as to add pseudogradation. In the second region, the FRC is not carried out. The second region is assumed as such a gradation region that when the field angle of the image display device is deflected, a gradient of a gradation-to-luminance characteristic becomes steep.
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