There is herein disclosed a sequential staggered type thin film transistor in a liquid crystal display comprising a glass substrate, and a gate line, a drain line, a pixel electrode and the sequential staggered type thin film transistor formed on the glass substrate, wherein the sequential staggered type thin film transistor has a structure in which an amorphous silicon layer, a gate insulating film and a gate electrode are laminated in turn on a source electrode and a drain electrode, and the width of an outgoing line connecting the source electrode of the thin film transistor to the pixel electrode is smaller than that of the source electrode.