Patent ID: 8477282

Claim:
A method for fabricating a liquid crystal display (LCD) device, comprising: preparing a first substrate having a plurality of pixels defined thereon; forming a gate electrode of a thin film transistor on each pixel of the first substrate by using a first mask; forming a gate insulating layer on the first substrate; forming active layer and source and drain electrodes of the thin film transistor and first and second layers of a protrusion on the gate insulating layer by using a second mask; forming a protection film covered on the source and drain electrodes of the thin film transistor and the second layer of the protrusion, and forming a contact hole for exposing part of the drain electrode on the protection film by using a third mask; forming a pixel electrode coming in contact with the drain electrode through the contact hole and a third layer of the protrusion by using a fourth mask; preparing a second substrate; forming a plurality of column spacers on the second substrate, wherein part of the plurality of column spacers is overlapped with the protrusion on the first substrate; and bonding the first substrate to the second substrate.