| 摘要 |
PROBLEM TO BE SOLVED: To reduce flickers in an electrooptical device of passive and active matrix type FRC(Frame Rate Control) systems. SOLUTION: According to input gradation data, the input gradation data are displayed by controlling them on-off at a three-frame cycle based on the control pattern shown in Fig. 5. In this invention, different on-off control patterns can be given to the groups A, B, C, respectively. Thus, when any of the groups is changed a little in a temporary gradation, delicate gradations can be displayed on the whole. Thus, even when a large number of gradations are required, an on-off cycle of each dot can be shorten, and flickers can be prevented.
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