부산대학교 도서관

A passive matrix liquid crystal display device which can display high-quality gradation by reducing cross-talk and improving contrast is attained. A driving apparatus comprises a field memory of picture image data for storing picture images being input from outside; a readout circuit of picture image data for reading out each element in a specific column of a matrix of picture image data; a calculation circuit of gradation correction term for calculating a gradation correction term from the readout picture image data; a memory of scan data for storing scan data in advance; a readout circuit of scan data for reading out specific scan data from the memory of scan data; an operation circuit of each element for operating a matrix of signal data based on picture image data of a specific column being read out from the field memory of picture image data and scan data being read out from the memory of scan data; and a field memory of signal data for storing data after being operated.