Liquid crystal display having protrusions with different thicknesses
View Patent ↗A liquid crystal display includes the first and second substrates. The first substrate has a first insulating substrate. A pixel electrode is formed on the first insulating substrate. The second substrate has a second insulating substrate. A common electrode is formed on the second insulating substrate. The first and second protrusions having different thicknesses are formed on the common electrode. A liquid crystal material is injected between the first and the second substrates.
1. A liquid crystal display (LCD), comprising:
a first substrate;
a black matrix formed on the first substrate;
a color filter formed on the first substrate;
a common electrode formed on the color filter;
a first protrusion formed on the common electrode and having a first thickness; and
a second protrusion formed on the common electrode and having a second thickness, the second thickness being greater than the first thickness.
2. The LCD of claim 1 , wherein the first and the second protrusions are formed of at least one of a photosensitive organic insulating layer, a photoresist film and a silicon-based insulating layer.
3. The LCD of claim 1 , wherein the common electrode is formed of indium tin oxide or indium zinc oxide.
4. The LCD of claim 1 , further comprising a second substrate facing the first substrate.
5. The LCD of claim 4 , wherein the second substrate comprises:
a thin film transistor (TFT); and
a pixel electrode electrically connected to the TFT.
6. The LCD of claim 5 , wherein the first protrusion has a first end arranged on the common electrode and a second end arranged on the TFT.
7. The LCD of claim 1 , further comprising a third protrusion and a forth protrusion formed on the common electrode.
8. A liquid crystal display, comprising:
a first insulating substrate;
a black matrix formed on the first insulating substrate;
a color filter formed on the first insulating substrate;
a common electrode formed on the color filter;
a first protrusion and a second protrusion formed on the common electrode, wherein the first protrusion has a first height and the second protrusion has a second height different than the first height;
a second insulating substrate;
a thin film transistor (TFT) formed on the second insulating substrate, wherein the first protrusion comprises a first end formed on the common electrode and a second end formed on the TFT;
a pixel electrode formed on a portion of the TFT; and
liquid crystal material formed between the first insulating substrate and the second insulating substrate.
9. The liquid crystal display of claim 8 , wherein the second end of the first protrusion is formed on a portion of the pixel electrode.
10. The liquid crystal display of claim 8 , further comprising a third protrusion having a first end and a second end, wherein the first end is arranged on the common electrode.
11. The liquid crystal display of claim 10 , further comprising a fourth protrusion having a first end and a second end, wherein the first end is arranged on the common electrode.
12. The liquid crystal display of claim 11 , wherein the second end of the third protrusion is arranged on a second thin film resistor (TFT) formed on the second insulating substrate.
13. The liquid crystal display of claim 12 , wherein the second end of the third protrusion is arranged on portion of a pixel electrode arranged on the second TFT.
14. The liquid crystal display of claim 11 , wherein the second end of the fourth protrusion is in contact with the liquid crystal material.
15. The liquid crystal display of claim 11 , wherein the pixel electrode is selected from a group of material consisting of includes indium tin oxide (ITO) and indium zinc oxide (IZO).