Method for the control of an image display screen displaying hal

Details Method for the control of an image display screen displaying hal Method for the control of an image display screen displaying hal

1997-02-20

2000-05-23

Black, Thomas G.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345211, 345212, 345 63, 345 77, 345 89, 345147, G06F 1730

Patent

active

060670606

ABSTRACT:
Disclosed are a method for the control of an image display screen displaying half-tones and a display device implementing this method. The disclosed method is used to control an image display screen of the type having cells arranged in rows and columns and working either in a state known as an "OFF" state or in a state known as an "ON" state in which they are activated and produce light. The method consists in activating the cells of each row during sub-periods of different duration, with orders of distribution of the sub-periods that are different between two successive rows. This results in a reduction of the amplitude of the variations of a load constituted by the cells in the <<lit>> state of these two consecutive rows. Application inter alia to alternating plasma panels.

REFERENCES:
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patent: 5233340 (1993-08-01), Yamaguchi et al.
patent: 5302966 (1994-04-01), Stewart
patent: 5729243 (1998-03-01), Cavallerano et al.
patent: 5751264 (1998-05-01), Cavallerano et al.
patent: 5864328 (1999-01-01), Kajimoto
Baldwin et al., Display Device, PCT International Publication #WO 94/09473, pp. 1-60, Apr. 28, 1994.

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