Matrix display panel driving system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 24, 1987
Grant Date -
N/A
app pub date -
Jun 28, 1984
filing date -
Jul 7, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A driving system for a display panel wherein a large number of data lines and scan lines are arranged in matrix fashion and wherein a display cell is disposed at each crossing point includes a row drive for supplying a first voltage to row side electrodes through the scan lines, a column drive for supplying a second or a third voltage to column side electrodes through the data lines, and a refreshing drive for supplying a reverse polarity voltage between the electrodes of each display cell after scanning of all the scan lines. The column drive performs a modulation drive by applying the voltages from the data lines selectively to the display cells according to an intended luminescence or non-luminescence of the cells. The row drive performs a write drive by sequentially applying the first voltage to the scan lines. The refreshing drive performs a refreshing operation by applying a predetermined refreshing voltage to the display cells after completion of the modulation and write drives. Thus, an image is displayed. This system obviates a pre-charge step and hence increases the scanning speed and reduces the power consumption.
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