Method for forming protrusion and opening in pixel region
View Patent ↗A liquid crystal display includes a first substrate having a plurality of pixel areas. At least one pair of first and second protrusions is formed at each pixel area. A pixel electrode is formed at each pixel area. The pixel electrode has an opening pattern exposing the first protrusion while covering the second protrusion. A second substrate faces the first substrate. A common electrode is formed at the second substrate. Alternatively, the opening pattern and the protrusions may be formed in parallel.
1. A method of fabricating a liquid crystal displays comprising steps of:
forming a gate line assembly on a first substrate, the gate line assembly comprising a gate line and a gate electrode;
depositing a gate insulating layer;
forming a semiconductor pattern;
forming a data line assembly, the data line assembly comprising a source electrode and a drain electrode and a data line, the gate line and the data line defining a pixel region;
depositing a protective layer;
patterning the protective layer and the gate insulating layer to expose a portion of the drain electrode and to form a protrusion comprising the gate insulating layer and the protective layer;
depositing a first transparent conductive layer; and
patterning the first transparent conductive layer to form a pixel electrode connected to the drain electrode and covering the protrusion and to form an opening in the pixel electrode, the protrusion and the opening dividing the pixel region into a plurality of domains.
2. The method of claim 1 , further comprising the steps of:
forming a color filter on a second substrate;
forming a common electrode on the color filters; and
conjoining the first and second substrates to form a liquid crystal cell therebetween.
3. The method of claim 2 , further comprising:
forming a first vertical alignment film on the pixel electrode;
forming a second vertical alignment film on the common electrode; and
injecting liquid crystal into the liquid crystal cell.
4. The method of claim 3 , wherein the liquid crystal has a negative dielectric anisotropy.
5. The method of claim 2 , wherein the second transparent conductive layer is formed of indium tin oxide (ITO) or indium zinc oxide (IZO).
6. The method of claim 5 , wherein the first transparent conductive layer is formed of ITO or IZO.
7. A method for fabricating a liquid crystal display, comprising steps of:
forming a gate wire pattern on a substrate, the gate wire pattern comprising a gate line and a gate electrode;
forming a gate insulating layer;
forming a data wire pattern, the data wire pattern comprising a data line, a source electrode and a drain electrode, the gate line and the data line defining a pixel region;
forming a protective layer;
patterning the protective layer and the gate insulating layer to expose the drain electrode and to form a protrusion comprising the gate insulating layer and the protective layer, the protrusion dividing the pixel region into a plurality of domains.
8. The method of claim 7 , further comprising a step of forming a pixel electrode connected to the drain electrode and covering the protrusion.
9. The method of claim 8 , wherein the step of forming the pixel electrode comprises steps of:
forming a transparent conductive layer; and
patterning the transparent conductive layer to form the pixel electrode.
10. The method of claim 9 , wherein the step of patterning the transparent conductive layer comprises a step of forming an opening in the pixel electrode, the opening dividing the pixel region into a plurality of domains.
11. The method of claim 10 , wherein the protrusion has a portion substantially parallel to a portion of the opening.