Liquid crystal display
View Patent ↗A liquid crystal display (“LCD”) includes a data interconnection line including a data line, a source electrode as a branch of the data line, and a drain electrode formed spaced apart from the source electrode, a semiconductor layer formed under the data interconnection line and connected to the source electrode and the drain electrode below the source electrode and the drain electrode and forming a channel region, and a gate interconnection line formed under the semiconductor layer and including a gate line intersecting the data line, the gate line extending in a first direction and the data line extending in a second direction, and a gate electrode branched from the gate line, wherein the gate line includes a first recess having a first width and a first length.
1. A liquid crystal display (LCD) comprising:
a first panel comprising:
an insulating substrate;
a gate interconnection line formed on the insulating substrate and including a gate line and the gate electrode branched from the gate line, the gate line extending in a first direction;
a data interconnection line including a data line, a source electrode as a branch of the data line, and a drain electrode formed spaced apart from the source electrode, the data line electrode extending in a second direction to intersect the gate line;
a semiconductor layer formed on the gate electrode and having a channel region between the source electrode and the drain electrode; and
a pixel electrode formed for a pixel region defined by the gate interconnection line and the data interconnection line;
a second panel facing the first panel, and
a liquid crystal layer interposed between the first and second panels,
wherein the gate line includes a first recess having a first length in the first direction and a first width extending in the second direction.
2. The LCD of claim 1 , further comprising the dielectric layer interposed between the pixel electrode and the source and the drain electrode.
3. The LCD of claim 2 , wherein the dielectric layer is made of an organic layer.
4. The LCD of claim 2 , wherein the dielectric layer is made of color resin.
5. The LCD of claim 1 , wherein the first recess of the gate line faces the pixel region.
6. The LCD of claim 1 , wherein the length of the first recess is greater than the width of the first recess.
7. The LCD of claim 1 , wherein the length of the first recess is approximately 30-70% of a width of the pixel region.
8. The LCD of claim 1 , wherein the gate electrode has a second recess having a second width under the drain electrode.
9. The LCD of claim 8 , wherein a bar-type end portion of the drain electrode overlaps the second recess of the gate electrode.
10. The LCD of claim 8 , wherein the second recess of the gate electrode faces away from the data line.
11. The LCD of claim 8 , wherein an end portion of the second recess is aligned with an end portion of the channel region.
12. The LCD of claim 11 , wherein a central portion of the second recess and a central portion of the channel region are aligned with a longitudinal axis of an end portion of the drain electrode.
13. The LCD of claim 12 , wherein the longitudinal axis of the end portion of the drain electrode is substantially parallel to the first direction.
14. The LCD of claim 8 , wherein the second width is in a range of 3-5 μm.
15. The LCD of claim 1 , further comprising a light blocking layer covering the first recess.
16. The LCD of claim 15 , wherein the light blocking layer has a width of approximately 30-70% of that of a pixel region.
17. The LCD of claim 15 , wherein the light blocking layer is in a floating state in which no voltage is applied.
18. The LCD panel of claim 15 , wherein the light blocking layer is made of a same material as the source electrode and the drain electrode.
19. The LCD of claim 15 , wherein the light blocking layer is made in a same layer as the data interconnection line.
20. The LCD of claim 1 , wherein the first width is in a range of 9-11 μm.
21. The LCD of claim 1 , wherein a dielectric constant of the liquid crystal layer is in a range of 3-5 in a normally white mode.
22. The LCD of claim 1 , wherein a dielectric constant of the liquid crystal layer is in a range of 13-15 in a normally black mode.