Display device with power-off delay circuitry

摘要

A driving and switching off circuit is provided for a liquid crystal display device having a memory effect and a plurality of pixels, with each pixel capable of exhibiting two states in accordance with an electric field applied thereto. The circuit comprises a driving circuit for applying a drive signal to the display device to cause all of the pixels to uniformly exhibit one of the two states, a delay circuit for providing an end signal subsequent to the application of the drive signal and a switching circuit, responsive to the delay circuit, for switching off the display device subsequent to causing all the pixels to uniformly exhibit the one state.