Plasma display and drive method for use on a plasma display

Details Plasma display and drive method for use on a plasma display Plasma display and drive method for use on a plasma display

2005-09-20

2008-11-18

Shankar, Vijay (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S060000, C345S066000, C345S067000, C345S068000

Reexamination Certificate

active

07453423

ABSTRACT:
A plasma display improved in variation of display brightness between unit cells. A control circuit sets, for every pulse, a charge-recovering time period for recovering a charge on a capacitance component of the plasma display panel and a clamp timing period for applying a predetermined sustain voltage to the sustain electrodes or the scan electrodes after the charge-recovering time period through clamp start timing, and sets a sustain-discharge emission intensity ratio, as a ratio of a maximal discharge intensity in the clamp timing period with reference to a discharge intensity in the clamp start timing to a maximum discharge intensity in the charge-recovering time period, at a value that a discharge in the clamp timing period is to spread up to an end of the unit cell. For example, the control circuit sets a sustain-discharge emission intensity ratio substantially at 0.5 or greater or 0.1 or smaller, thus eliminating the occurrence of image retention.

REFERENCES:
patent: 2005/0253517 (2005-11-01), Kwon et al.
patent: 2005/0264491 (2005-12-01), Choi
patent: 2006/0158113 (2006-07-01), Hur et al.
patent: 2006/0170630 (2006-08-01), Hur et al.
patent: 2002/006805 (2002-01-01), None
patent: 2002/006806 (2002-01-01), None

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