Device for and method of compensating image distortion of plasma

Details Device for and method of compensating image distortion of plasma Device for and method of compensating image distortion of plasma

1997-05-27

2000-07-11

Chow, Dennis-Doon

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 63, 345 67, 3151694, G09G 328

Patent

active

060880090

ABSTRACT:
A device for compensating for image distortion of a plasma display panel using a subfield driving method includes: a control unit for generating the number of first and second sustain pulses that is proportional to the relative ratio of luminance of each subfield, and control signals, and an image distortion compensation unit for adding one or more first and second pseudo pulses in each interval of the first and second sustain pulses corresponding to at least any one of subfields, according to the control signals, and generating first and second compensation pulses to compensate for the image distortion. This enhances the quality of images even when adjacent gray scale signals are supplied in succession. By adding pseudo pulses in each interval of the sustain pulses corresponding to at least any one of the subfields, this adds a compensation value according to the pseudo pulses to the luminances of the subfields, thus reducing the luminance difference between the successive gray scale signals.

REFERENCES:
patent: 5420602 (1995-05-01), Kanazawa
patent: 5436634 (1995-07-01), Kanazawa
patent: 5446344 (1995-08-01), Kanazawa
patent: 5471228 (1995-11-01), Ilcisin et al.
patent: 5583527 (1996-12-01), Fujisaki et al.
patent: 5874932 (1999-02-01), Nagaoka et al.
patent: 5889501 (1999-03-01), Sasaki et al.

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