Au Optronics Corporation

Hsiao-Wen Wang

Chung-Chun Chen

Sheng-Chao Liu

Yu-Hsuan Li

Jui-Chi Lo

Chun-Hung Kuo

A multiplex driving circuit receives m master signals and n slave signals, and includes m driving modules for generating m&#xd7;n gate driving signals. Each driving module includes a voltage boost stage and n driving stages. The voltage boost stage is used for receiving a first master signal of the m master signals and converting the first master signal into a first high voltage signal, wherein a high logic level of the first master signal is increased to a highest voltage by the voltage boost stage. The n driving stages receives the n slave signals, respectively, and receives the first high voltage signal. In response to the highest voltage of the first high voltage signal, the n driving stages sequentially generates n gate driving signals according to the n slave signals.

Multiplex driving circuit

A multiplex gate driving circuit includes plural driving modules. In comparison with the prior art, each driving stage of the driving module has less number of transistors. From the first to the seventh example, each driving stage is implemented by only four transistors. In the eighth example and the ninth example, each driving stage is implemented by only two transistors. In other words, the driving stage of the multiplex gate driving circuit has less number of transistors, thereby reducing the layout area of the invisible zone of the LCD panel.

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Hsin-Chu, Taiwan

Hsiao-Wen Wang