Driving method of the dot matrix display panel, dot matrix display panel driving circuit, dot-matrix display device, and information processing system with a dot matrix display device

摘要

PURPOSE: To obtain a method for extending display data in which it is not necessary to use plural frequency clocks without deteriorating a processing speed by installing a circuit for generating the intermediate value of display data in a circuit for driving a dot matrix display device. ;CONSTITUTION: A dot matrix display panel is provided with plural signal electrodes (y)₀ to (y)₅, and plural scanning electrodes crossing those signal electrodes (y)₀ to (y)₅, and display dots are formed at the crossing positions of the signal electrodes (y)₀ to (y)₅ and the scanning electrodes. In a driving circuit, display data for one display line are successively shifted in a shift register 30, and impressed to the signal electrodes (y)₀ to (y)₅. Then, at the time of driving at least one part of display lines, an intermediate value between the display data previously impressed to the signal electrodes (y)₀ to (y)₅ and display data newly arranging in the shift register 30 is generated, and the generated intermediate value is impressed to the signal electrodes (y)₀ to (y)₅ so that the display data are extended.;COPYRIGHT: (C)1995,JPO