Array substrate for liquid crystal display device and manufacturing method of the same
View Patent ↗According to an embodiment, an array substrate for an LCD device includes a substrate, gate lines on the substrate along a first direction, data lines formed along a second direction and crossing the gate lines to define first, second and third pixel regions, thin film transistors at crossing points of the gate lines and the data lines, red, green and blue color filter patterns sequentially disposed in the first, second and third pixel regions, respectively, first, second and third common lines corresponding to the first, second and third pixel regions and receiving first, second and third common voltages, respectively, a pixel electrode over each of the red, green and blue color filter patterns and connected to one of the thin film transistors, and a common electrode over each of the red, green and blue color filter patterns and connected to one of the first, second and third common lines.
1. An array substrate for an LCD device, comprising:
a substrate;
gate lines on the substrate along a first direction;
data lines formed along a second direction and crossing the gate lines to define first, second and third pixel regions; thin film transistors at crossing points of the gate lines and the data lines;
red, green and blue color filter patterns sequentially disposed in the first, second and third pixel regions, respectively;
first, second and third common lines corresponding to the first, second and third pixel regions and configured to receive first, second and third common voltages, respectively, wherein the second common voltage is different from the first and third common voltages;
a pixel electrode over each of the red, green and blue color filter patterns and connected to one of the thin film transistors; and
a common electrode over each of the red, green and blue color filter patterns and connected to one of the first, second and third common lines, the common electrode spaced apart from the pixel electrode.
2. The array substrate according to claim 1 , wherein the green color filter pattern is thicker than the red and blue color filter patterns.
3. The array substrate according to claim 1 , wherein the first common voltage is different from the third common voltage.
4. The array substrate according to claim 1 , wherein the first common voltage equals to the third common voltage.
5. The array substrate according to claim 1 , further comprising a storage line parallel to the gate lines and overlapping the pixel electrode.
6. The array substrate according to claim 5 , wherein the pixel electrode includes a first horizontal portion and first vertical portions, the first horizontal portion connected to the thin film transistor and overlapping the storage line, the first vertical portions extending from the first horizontal portion.
7. The array substrate according to claim 6 , wherein the common electrode includes a second horizontal portion and second vertical portions, the second horizontal portion connected to the one of the first, second and third common lines, the second vertical portions extending from the second horizontal portion and alternating the first vertical portions.
8. A manufacturing method an array substrate for an LCD device, comprising:
forming gate lines on a substrate along a first direction; forming data lines formed along a second direction and crossing the gate lines to define first, second and third pixel regions;
forming thin film transistors at crossing points of the gate lines and the data lines;
forming first, second and third common lines corresponding to the first, second and third pixel regions and configured to receive first, second and third common voltages, respectively, wherein the second common voltage is different from the first and third common voltages;
forming red, green and blue color filter patterns sequentially disposed in the first, second and third pixel regions, respectively; forming a pixel electrode over each of the red, green and blue color filter patterns and connected to one of the thin film transistors; and
forming a common electrode over each of the red, green and blue color filter patterns and connected to one of the first, second and third common lines, the common electrode spaced apart from the pixel electrode.
9. The method according to claim 8 , wherein the green color filter pattern is thicker than the red and blue color filter patterns.
10. The method according to claim 8 , wherein the first common voltage is different from the third common voltage.
11. The method according to claim 8 , wherein the first common voltage equals to the third common voltage.
12. The method according to claim 8 , further comprising forming a black matrix in each of the first, second and third pixel regions between forming the thin film transistor and forming the red, green and blue color filter patterns.