Patent ID: 7977677

Claim:
A thin-film transistor (TFT) substrate comprising: a substrate; a gate electrode formed on the substrate and extended from a gate line; a gate insulating layer formed on the substrate to cover the gate line and the gate electrode; a semiconductor layer formed on the gate insulating layer corresponding to the gate electrode; a source electrode formed on the semiconductor layer and extended from a data line formed on the gate insulating layer in a direction crossing a longitudinal direction of the gate line; a drain electrode formed on the semiconductor layer opposite to the source electrode to define a channel area of the semiconductor layer between the source and drain electrodes; an organic layer including a color filter and being formed on the gate insulating layer to cover the source electrode, the drain electrode and the data line, the organic layer having a first opening exposing the channel area; an inorganic insulating layer formed on the color filter and an inner surface of the first opening, the inorganic insulating layer having a substantially uniform thickness; and a pixel electrode disposed on the inorganic insulating layer, the pixel electrode directly contacting with the drain electrode through a contact hole formed in the organic layer and the inorganic layer to be electrically connected to the drain electrode, and the pixel electrode being disposed in regions except for a region in which the first opening is formed.