Abstract: The present invention relates to a method of compensating for the disturbances due to the demultiplexing of an analogue signal with regard to a circuit comprising N data lines, wherein the demultiplexing is carried out by sample-and-hold circuits whose input receives the analogue signal and whose output is connected to one of the N data lines, the N sample-and-hold circuits being operated in succession by a sampling signal (ECHi). During the application of the sampling signal (ECHi, V1) to one of the sample-and-hold circuits, an opposite compensation level (V3) which is lower than the level of the sampling signal is applied to the N?1 sample-and-hold circuits. Application in particular to LCD screens.

Abstract: A process for compensating a circuit including at least one first conductor with a specified potential, at least one second conductor generating disturbances on the first conductor by capacitive coupling, and a first bus with a reference voltage, coupled capacitively to the first conductor. The process includes the following steps: measuring of the current flowing on the first bus upon the application of a voltage to the second conductor; integrating a measured current to obtain a compensation voltage to be applied to the first conductor; and applying the compensation voltage to at least one of the rows via the compensation conductor bus, the compensation bus coupled capacitively to the rows.

Abstract: The present invention relates to a process for compensating a circuit comprising at least one first conductor (lj) with a specified potential, at least one second conductor (ci) generating disturbances on the first conductor by capacitive coupling, and a first bus (CE) with a reference voltage, coupled capacitively to the first conductor.