Importance

Loading Importance Indicators...

Abstract

A touch display apparatus according to an embodiment of the present invention includes a display part, a common voltage generating part, a plurality of driving parts and a plurality of charge sensing parts. Thea display part includes a first substrate, a second substrate disposed opposite to the first substrate, a liquid crystal layer disposed between the first and second substrates, a common electrode formed between the first and second substrates, and a plurality of pixel electrodes formed respectively in pixels between the first and second substrates. The common voltage generating part is electrically connected to the common electrode to provide the common electrode with a common voltage. The plurality of driving parts is electrically connected to the pixel electrodes, respectively to provide the pixel electrode with a pixel voltage. The plurality of charge sensing parts is electrically connected to the pixel electrodes to sense electric charge of the pixel electrodes. Since the charge sensing parts electrically connected to the pixel electrodes, respectively sense changes of electric charges of each of the pixel electrodes to detect touch input, no additional capacitive type touch input part is required to reduce manufacturing cost.

Loading the Abstract Image...

First Claim