Patent ID: 6023256
Filing Date: 2000-02-08
Classification: G09G

Abstract:
A Liquid Crystal Display (LCD) driver system for driving an LCD having a dot matrix display portion and an icon display portion, the LCD driver system comprising:an LCD including a dot matrix display portion having a plurality of display rows and an icon display portion having at least one display row;a row driver coupled to the display rows of the LCD for driving the display rows;a voltage supply for selectively supplying either a higher or lower voltage level to the row driver;a row decoder coupled to the row driver for selectively enabling the display rows of the dot matrix display portion and of the icon display portion;a controller for providing a mode signal indicating either a normal mode of operation or an icon mode of operation;whereby the mode signal is coupled to the voltage supply for supplying the lower voltage level when the mode signal indicates the icon mode of operation and the higher voltage level when the mode signal indicates the normal mode of operation;the mode signal also being coupled to the row decoder for enabling the display rows of the dot matrix display portion when the mode signal indicates the normal mode of operation and disabling the display rows of the dot matrix display portion when the mode signal indicates the icon mode of operation;the display row of the icon display portion being enabled when the mode signal indicates the icon mode of operation and being selectively enabled by the row decoder when the mode signal indicates the normal mode of operation.