Gradation generation e.g. in matrix display device, involves giving ON and OFF data to divided and undivided selection periods to generate voltage level that is decimated and used between minimum and maximum levels

摘要

The selection period of any frame among several display frames, is divided. The ON data and OFF data are given to both the divided selection period and the undivided selection period, to generate a voltage level which is decimated and used between minimum and maximum levels. An independent claim is also included for drive unit of liquid crystal display device.