Appeal No. 1998-1319
Application No. 08/466,188
The method involves producing multi-tone voltage selecting
data based on analog image data and outputting a multi-tone
voltage having a constant voltage level during each horizontal
scanning period. Claims 18 and 34 are illustrative of the
claimed invention, and they read as follows:
18. An information processing system comprising:
an information device for outputting an analog display
data; and
an image display device, said image display device
including:
a matrix display panel having plural X direction signal
lines and plural Y direction signal lines, said plural X
direction signal lines and said plural Y direction signal
lines intersecting at intersecting points, the intersecting
points of said matrix being pixels of a display image,
an A-D converter circuit for receiving said analog
display data and converting said analog display data into
digital display data,
a Y direction driving circuit for driving said plural Y
direction signal lines by sequentially providing a select
signal to said plural Y direction signal lines,
a voltage generator for simultaneously generating a
plurality of discrete output signals at respectively different
voltage levels, each of said voltage levels being a constant
voltage level, and
an X direction driving circuit for receiving digital
display data and for providing image signals to said plural X
direction signal lines, wherein
2
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