Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-02-20
1998-11-03
Brier, Jeffery
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 98, G09G 336
Patent
active
058315888
ABSTRACT:
This invention relates to an improved drive and control means for matrix addressable electro-optic displays, such as passive matrix LCDs and active matrix LCDs. The present invention achieves improved drive and control of displays through the use of real time computation and memory circuits to simulate the electro-optic condition and the accumulated DC bias of individual display elements. This eliminates the burden of frequent and symmetrical reversals of the drive polarity, and allows the implementation of flexible DC drive methodologies.
REFERENCES:
patent: 5280280 (1994-01-01), Hotto
patent: 5444457 (1995-08-01), Hotto
patent: 5485173 (1996-01-01), Scheffer et al.
patent: 5627558 (1997-05-01), Hotto
A Generalized Addressing Technique for RMS Responding Matrix LCDs, T.N. Ruckmongathan, pp. 80-85, 1988 IEEE.
Brier Jeffery
Rogitz John L.
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