Patent ID: 8669130
Filing Date: 2014-03-11
Classification: G02F,H01L

Abstract:
1. A method for fabricating a fringe field switching (FFS) liquid crystal display (LCD) device, the method comprising: providing a first substrate divided into a pixel portion and a pad portion; forming a gate electrode and a gate line in the pixel portion of the first substrate and forming a pad line in the pad portion of the first substrate; forming a gate insulating layer on the first substrate with the gate electrode, the gate line, and the pad line formed thereon; forming an active layer in an upper portion of the gate electrode with the gate insulating layer formed thereon; forming a source electrode and a drain electrode in an upper portion of the active layer of the first substrate with the active layer formed thereon, and forming a data line intersecting with the gate line to define a pixel region; forming a first protective film on the first substrate with the source electrode, the drain electrode, and the data line formed thereon; forming a second protective film formed as an organic insulating layer in the pixel portion of the first substrate with the protective film formed thereon; forming a first electrode in the pixel portion of the first substrate with the second protective film formed thereon; forming a third protective film on the first substrate with the first electrode formed thereon such that an upper layer thereof has higher porosity than that of a lower layer thereof by adjusting a gas flow rate; selectively etching the gate insulating layer, the first protective film, and the third protective film to form a pad portion contact hole exposing the pad line; forming a second electrode in the pixel portion of the first substrate with the third protective film formed thereon and forming a pad electrode electrically connected to the pad line through the pad portion contact hole in the pad portion of the first substrate; and attaching the first and second substrates.