Patent ID: 6424330
Filing Date: 2002-07-23
Classification: G09G

Abstract:
A display device comprising: an electro-optical material between two substrates, at least one of which is transparent, and a first substrate is provided with at least one picture electrode at the location of a pixel, each pixel being coupled to a row electrode and a column electrode, control means comprising first drive means for applying a selection signal to the row electrodes and second drive means for applying a data signal to the column electrodes, a measuring element, wherein the control means comprise means for applying a voltage to the measuring element during a selection period and for measuring the variation of the voltage across the measuring element after the selection period, and for adapting, dependent on the measured voltage variation, at least one of the control voltages of the display device generated by the control means, wherein each pixel is coupled to the row electrode or the column electrode via a switching element, and characterized in that the measuring element comprises a row of pixels.