Method and device for controlling a matrix screen displaying...

Details Method and device for controlling a matrix screen displaying... Method and device for controlling a matrix screen displaying...

G - Physics

09

G

375/53

G09G 3/36 (2006.01) G09G 3/22 (2006.01)

Patent

CA 1325297

ABSTRACT A process and device for controlling a matrix screen displaying gray levels, wherein during the line time T activation signals are delivered to the columns of the screen for a time depending on the gray level i of the image point in question and equal to (T/N).Nil, where O?i?m?N, the Nils forming a strictly increasing sequence of i of first term zero and of last term lower than or equal to N, the Nils being so selected as to obtain a predetermined distribution for the light intensities of the different gray levels. Appliation to the control of microdot or liquid crystal matrix screens.

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