Display device and controller driver for improved FRC technique

摘要

A display device is provided with a display panel and a controller driver. The controller driver includes: a preceding image processing stage performing color-reduction processing on input image data to generate color-reduced image data; a memory; a latter image processing stage adapted to perform modification processing on the color-reduced image data received from the memory to generate output image data; and a driver circuit driving the display panel in response to the output image data. The latter image processing stage is provided with a counter generating a counter value; a binary LUT outputting an LUT output value in response to the counter value and coordinates of a target pixel selected from the plurality of pixels; and a selector section generating the output image data from the color-reduced image data in response to the LUT output value. The bit width of the output image data is identical to that of the color-reduced image data. The value of the output image data is identical to the corresponding value of the color-reduced image data when the LUT output value is a first value, while the value of the output image data is modified from the corresponding value of the color-reduced image data when the LUT output value is a second value different from the first value.