Controller driver, mobile terminal using the same, and display panel driving method

摘要

A controller driver includes a color palette circuit configured to hold color palette data indicating a relation of a color reference numbers corresponding to a color and RGB data corresponding to the color, a first memory section configured to hold first layer data containing first RGB data specifying a color of each of pixels of a first layer image; a second memory section configured to hold second layer data containing a color reference number specifying a color of each of pixels of a second layer image; a calculating circuit configured to generate synthetic image data of the first layer data and the second layer data; and a driving circuit configured to drive a display panel based on the synthetic image data. The calculating circuit converts each of the color reference numbers of the second layer data into second RGB data by using the color palette data, and generates synthetic RGB data from the first RGB data and the second RGB data, the synthetic RGB data specifying a color of each of pixels of the synthetic image data.