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Abstract

In an active matrix liquid crystal display, pixels are arranged in rows and columns of a matrix and are controllable via row electrodes and column electrodes. To improve and to expand the possibilities of image rendering without increasing the number of rows and columns to be controlled, the pixels are divided into sub-pixels with corresponding sub-pixel electrodes, each of which is connected to the column electrode assigned to the pixel via controllable switches. On the control side, the controllable switches are connected to the row electrode assigned to the pixel via pixel control unit which is common to them. From a control signal supplied to it via the row electrode the pixel control unit generates locally and chronologically different turn-on signals for the various switches so that they switch chronologically successive different gray-scale levels of a gray-scale signal present at the column electrode through to the sub-pixel electrodes.

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First Claim