Patent ID: 6714177
Filing Date: 2004-03-30
Classification: G09G

Abstract:
A light-emitting display device in which light-emitting elements are connected to intersections of positive electrode lines and negative electrode lines arranged in a matrix, either one of the positive electrode lines or the negative electrode lines are employed as scan lines with the other employed as drive lines; a scan period during which, while scanning the scan lines, drive sources are connected to desired drive lines in synchronization with the scanning of the scan lines, thus the light-emitting elements connected to the intersections of the scan lines and drive lines are lit, and a reset period for providing a reset voltage to light-emitting elements are alternately repeated for display by light emission, said light-emitting display device comprising:scan switch means for enabling either of grounding means for providing a ground potential or a reverse bias voltage source for providing a predetermined reverse bias voltage to connect to each of said scan lines; drive switch means for enabling either of said drive source to said each drive lines or reset voltage sources for providing said reset voltage to connect to each of said drive lines; and control means for controlling the switching of said scan switch means and said drive switch means to apply a reset voltage to all of said light-emitting elements in a forward direction during said reset period, wherein said reverse bias voltage source has substantially the same voltage as the voltage determined by subtracting said reset voltage from the light emission specifying voltage of light-emitting elements.