Liquid crystal display with protruding sub-pixel electrode
View Patent ↗A pixel unit of a liquid crystal display includes a first sub-pixel electrode coupled by a direct current path to a corresponding switching element and a second sub-pixel electrode capacitively connected to the first sub-pixel electrode. The second sub-pixel electrode has a protrusion extending upwardly toward a spaced apart common electrode. The common electrode has a cut-out directly above the protrusion.
1. A liquid crystal display comprising:
a first insulating substrate;
a gate line and a data line on the first insulating substrate, the gate line intersecting the data line;
a first sub-pixel electrode coupled to the gate line and the data line;
a second sub-pixel electrode capacitively coupled to the first sub-pixel electrode;
a second insulating substrate spaced apart from and facing the first insulating substrate;
a common electrode formed on the second insulating substrate, wherein the common electrode includes at least one cut-out pattern facing a protrusion on the first insulating substrate.
2. The liquid crystal display of claim 1 , further comprising
a source electrode connected to the data line, and a drain electrode having one end facing toward the source electrode and another end connected to the first sub-pixel electrode, wherein the drain electrode is capacitively coupled to the second subpixel electrode, and
further comprising a floating electrode overlapping the second sub-pixel electrode and the drain electrode.
3. The liquid crystal display of claim 2 , wherein the drain electrode is disposed between the second sub-pixel electrode and the floating electrode.
4. The liquid crystal display of claim 3 , further comprising a coupling electrode insulated from the drain electrode and overlapping the second sub-pixel electrode and the drain electrode.
5. The liquid crystal display of claim 1 , further comprising a floating electrode connected to the second sub-pixel electrode and capacitively coupled to the first sub-pixel electrode.
6. The liquid crystal display of claim 5 , wherein the floating electrode is formed concurrently with the gate line.
7. The liquid crystal display of claim 5 , wherein the second sub-pixel electrode is connected to the floating electrode via a contact hole.
8. A liquid crystal display comprising:
a first insulating substrate;
a gate line and a data line on the first insulating substrate, the gate line intersecting the data line;
a first sub-pixel electrode coupled to the gate line and the data line;
a second sub-pixel electrode capacitively coupled to the first sub-pixel electrode; and
a protrusion formed on the second sub-pixel electrode in a hole shape.
9. The liquid crystal display of claim 8 , further comprising:
a second insulating substrate spaced apart from and facing the first insulating substrate;
a common electrode formed the second insulating substrate, wherein the common electrode includes at least one cut-out pattern; and
a cut-out pattern formed on the common electrode,
wherein the cut-out pattern is formed to overlap the protrusion.
10. The liquid crystal display of claim 9 ,
wherein the at least one cut-out pattern comprises a first cut-out pattern overlapping the first sub-pixel electrode and a second cut-out pattern overlapping the second sub-pixel electrode,
wherein a width of the second cut-out pattern is greater than a width of the first cut-out pattern.
11. The liquid crystal display of claim 8 , further comprising a source electrode connected to the data line, and a drain electrode having one end facing to the source electrode and the other end connected to the first sub-pixel electrode, the drain electrode capacitively coupled to the second sub-pixel electrode.
12. The liquid crystal display of claim 8 , further comprising a floating electrode connected to the second sub-pixel electrode and capacitively coupled to the first sub-pixel electrode.