Display panel driving method and display apparatus

摘要

In a display apparatus for performing multiple-level gradation display, the number of connection terminals of the drive circuit thereof is reduced so as to reduce the number of analog switches in the drive circuit. First and second reference voltages which rise stepwise with time are supplied to analog switches that are selectively turned on and off in accordance with gradation display data elements. Among potentials included in the changing first and second reference voltages, a potential corresponding to gradation display data is supplied to the pixel electrodes via source lines to perform gradation display in accordance with the gradation display data.