Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-09-26
2010-12-07
Patel, Nitin (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S099000
Reexamination Certificate
active
07847770
ABSTRACT:
In order to realize a display with a multilevel halftone that is excellent in uniformity by using a liquid crystal display element employing an inexpensive and general purpose driver having a low voltage endurance, a pulse application employing a cumulative response (overwriting) of liquid crystals is performed a plurality of times, the driving voltage and the pulse width are set to be variable for each step, and the liquid crystals are controlled to be in a prescribed halftone state by using a region having a large margin from a reflection state as the initial state. Since an increase in drive voltage is prevented, an inexpensive binary output general purpose driver having a low voltage endurance can be used. Furthermore, a display with a multilevel halftone that is excellent in uniformity is realized because of a gray level conversion that uses a region having a large margin.
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Fujitsu Limited
Patel Nitin
Westerman Hattori Daniels & Adrian LLP
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