Magnachip Semiconductor, Inc.

Beom-Jin Kim

Ki-Seok Cho

Hee-Jung Kim

Dae-Ho Lim

An apparatus for driving a display panel includes: a time variant signal (TVS) generator configured to generate a time variant signal group; a common pulse signal generator configured to generate a plurality of pulse signals; a selector configured to receive the time variant signal, the plurality of the pulse signals, and video data and select a grayscale voltage corresponding to the video data; and a buffer configured to buffer and transfer an output of the selector. Herein, the selector and the buffer are provided to each of a plurality of channels, and the time variant signal and the plurality of the pulse signals are inputted in common to the selector of each channel.

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Cheongju-si, South Korea

Beom-Jin Kim