Data outputting method, data outputting device, liquid crystal panel driving device, and liquid crystal display device

Abstract

A data outputting method is provided which is capable of reducing a memory capacity of a LUT (Look-Up Table). Compressed data obtained by dropping low-order bits making up gray-level data is stored in a manner in which the compressed data can be accessed by high-order bits to be input to the LUT. High-order bits making up an address output from an address supplying unit are supplied to the LUT and low-order bits are supplied to a computing unit. The LUT outputs compressed gray-level data corresponding to the high-order bits and compressed gray-level data corresponding to data of (high-order bit+1). The computing unit outputs each of expanded gray-level data obtained by dividing data obtained by interpolation among one expanded gray-level data, another expanded gray-level data and, third expanded data for every high-order bit based on one compressed data, other compressed data, and lower-bits.