DRIVING DEVICE FOR ELECTRO-OPTICAL DEVICE, DISPLAY DEVICE USING THE SAME, DRIVING METHOD FOR THE SAME, AND METHOD FOR SETTING WEIGHT OF THE SAME

摘要

PROBLEM TO BE SOLVED: To extend a range of a matrix type display device wherein each level of display gradation can be set to a desired value when realizing time-division gradation display on the matrix type display device.;SOLUTION: When time-division gradation display is performed by setting the display state of an electro-optic element capable of display of R gradations, A times in one frame period, weights of respective bit data representative of a display state are set as, for example, 2⁰:2¹:2²:2³-1:... by breaking regularity in at least one bit of the third and following bits so as to make BR^A true where B is the number of display gradations, though having been conventionally set as 2⁰:2¹:2²:2³:..., namely, 1:2:4:8:... Thus an actually recognized picture is not made different so much, and time-division gradation display with a desired bit weight ratio is realized with the arbitrary number of scanning lines.;COPYRIGHT: (C)2004,JPO