Plasma display having variable scan line pulses to reduce flicke

Details Plasma display having variable scan line pulses to reduce flicke Plasma display having variable scan line pulses to reduce flicke

1996-06-28

2000-08-22

Brier, Jeffery

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 67, 3151694, G09G 328, G09G 310, H01J 1749

Patent

active

061079782

ABSTRACT:
A PDP driving method for more reliably lighting cells that should be lit has been disclosed. The pulse duration of a scanning pulse can be varied depending on a scan line. The pulse duration of a scanning pulse to be applied to a scan line, to which numerous cells each having a high probability of becoming a flickering missing point because a priming effect is unavailable or small are connected, is made longer than that of a scanning pulse to be applied to the other scan lines. When a cell connected to the same address line and to an immediately preceding scan line or a scan line preceding the immediately preceding scan line is unlit, the pulse duration of a scanning pulse to be applied to a cell concerned is made longer. When a whole panel is noted, a scanning pulse having a long pulse duration is applied at least to the first scan bus line. If possible, the scanning pulse having a long pulse duration is applied to the second and third scan lines. As for the other scan lines, since they are influenced by display data, it is judged on the basis of display data to be displayed during the next cycle prior to the next cycle if each cell has a high probability of an addressing discharge failure.

REFERENCES:
patent: 4692665 (1987-09-01), Sakuma
patent: 5231382 (1993-07-01), Tanaka
patent: 5739799 (1998-04-01), Takahashi et al.

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