Common voltage compensation in a display apparatus

摘要

A method and a circuit component for suppressing crosstalk associated with the common voltage in a liquid crystal display are disclosed. In particular, in a liquid crystal display where the crosstalk is mainly caused by various control signals generated by a timing control circuit, one or more timing control signals are extracted from the timing control circuit and processed to become a compensation signal. The compensation signal is provided to display area of the liquid crystal display. The timing control signals generated by the timing control circuit include a start signal and a plurality of clock signals. The steps for processing these signals may include summing, inverting, high-pass filtering and amplitude adjustment, to be carried out in different orders and/or combinations. When the timing control signals are current signals, the steps for processing these signals may include current-to-voltage conversion, summing and inverting.

主权项

1. A method of compensating a common voltage in a display apparatus, the display apparatus comprising a display area and one or more peripheral components spaced from the display area, the display area comprising a plurality of display components configured to receive a plurality of display signals and control signals from the peripheral components, the display area configured to display an image representative of the display signals in relationship to the common voltage in response to the control signals, said method comprising:
obtaining one or more of the control signals from the peripheral components; processing said one or more of the control signals for generating a processed signal; and providing the processed signal to the display area for compensating the common voltage.