Method of fabricating an array substrate for a liquid crystal display device using a soft mold
View Patent ↗A liquid crystal display device and a method of fabricating the same is disclosed, to provide a liquid crystal display device to simplify the process and decrease the fabrication cost, the liquid crystal display device includes a first substrate having a color filter and a second substrate having a thin film transistor, wherein the first and second substrates face each other, a first passivation film formed on the thin film transistor, and a first column spacer formed integrally with the first passivation film.
1. A method of fabricating a liquid crystal display device comprising:
preparing a first substrate having a color filter and a black matrix layer;
forming a thin film transistor on a second substrate facing the first substrate;
forming a pattern material layer on the second substrate including the thin film transistor;
aligning a soft mold with the second substrate including the pattern material layer;
forming a contact hole, a passivation film, a first column spacer and a second column spacer by contacting the soft mold with the pattern material layer, wherein the second column spacer has a height lower than the first column spacer;
separating the soft mold from the pattern material layer; and
forming a pixel electrode that connects to the thin film transistor via the contact hole,
wherein an entire area of the second column spacers is formed to overlap with the black matrix layer.
2. The method of claim 1 , wherein the pattern material layer is formed of an organic insulation material including ultra-violet curable liquid pre-polymer, photo-initiator and surfactant.
3. The method of claim 1 , wherein the soft mold is provided with embossing patterns for formation of the contact hole, and depressed patterns for formation of the first and second column spacers.
4. The method of claim 3 , wherein the soft mold is formed of any one of polydimethylsiloxane, polyurethane and polyimide.
5. The method of claim 1 , wherein the first column spacer has a height above the second substrate to contact the first substrate.
6. A method of fabricating an array substrate for a liquid crystal display device comprising:
forming a thin film transistor connected to gate and data lines on a substrate;
forming a pattern material layer on the substrate in including the thin film transistor;
aligning a soft mold with the substrate including the pattern material layer;
forming a contact hole, a passivation film, a first column spacer and a second column spacer by contacting the soft mold to the pattern material layer, wherein the second column spacer has a height lower than the first column spacer;
separating the soft mold from the pattern material layer; and
forming a pixel electrode that connects to the thin film transistor via the contact hole,
wherein an entire area of the second column spacers is formed to overlap with the gate line.