A liquid crystal display (LCD) device includes: a first substrate divided into a pixel part and first and second pad parts; a gate electrode and a gate line formed at the pixel part of the first substrate; an active pattern as an island formed over the gate electrode with a first insulation film interposed therebetween, and having a width smaller than the gate electrode; an ohmic-contact layer formed on source and drain regions of the active pattern on the first substrate; source and drain electrodes formed as islands over the gate electrode of the first substrate and electrically connected with the source and drain regions of the active pattern via the ohmic-contact layer; a data line formed on the pixel part of the first substrate and crossing the gate line to define a pixel region; a pixel electrode formed at the pixel region and electrically connected with the drain electrode; a second insulation film formed on the first substrate; and a second substrate attached to the first substrate in a facing manner.