Plasma display system

Details Plasma display system Plasma display system

1997-12-29

2000-03-14

Hjerpe, Richard A.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 60, 345147, G09G 328, G09G 510

Patent

active

060379170

ABSTRACT:
A plasma display adopting a sub-field scheme drive, which seeks to reduce light intensity level variation when the input video signal field frequency is varied. A sub-field setter 2 sets a plurality of sub-fields from the 1-st one (SF1) to an n-th one (SFn) with light intensity level ratios of 2.sup.n-1 :2.sup.n-2, . . . , 2:1. A sustained discharge pulse number controller 3 generates sustained discharge pulses for sustained light emission. The sustained discharge pulses are generated in numbers, which correspond to the relative light intensity levels of the individual sub-fields, and are controlled according to the rate of change in the input video signal field frequency from a reference field frequency.

REFERENCES:
patent: 5757343 (1998-05-01), Nagakubo
patent: 5818419 (1998-10-01), Tajima et al.

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