Appeal No. 96-1855
Application 07/953,807
halftone data into separate frames as shown in Figures 13(a)
and 13(b), as opposed to concentrating the ON data displays
for halftone data in the same frame as shown in prior art
Figure 65 (even frames).
Figure 14 illustrates another display example where
halftones appear on the left and right half of a frame line.
Applying Appellants' invention, halftone display OFF data (and
display ON data) are uniformly distributed in the right and
left halves of each frame in both the odd and even frames
(Figures 15(a) and 15(b)), and flicker is less prone to arise.
When adjacent lines are simultaneously in halftone
data display states, the repetition of display ON and display
OFF for these lines, at the same timings, gives rise to
flicker. Therefore Appellants invert the timings to reduce
flicker.
"As set forth above, according to the [first]
embodiment of the present invention, the halftone patterns of
the successive patterns, in which the timings for affording
the display-ON and the display-OFF are changed [i.e. inverted]
at the adjacent dots or lines, are determined on the basis of
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