Liquid crystal display
View Patent ↗The present invention relates to a liquid crystal display that includes: gate lines and data lines arranged on a first substrate; pixel electrodes connected to the gate lines and the data lines, and including a first sub-pixel electrode and a second sub-pixel electrode separated from each other by a gap; a common electrode arranged on a second substrate, and facing the pixel electrodes; and a liquid crystal layer disposed between the pixel electrodes and the common electrode and including a plurality of liquid crystal molecules, wherein each of the first sub-pixel electrode and the second sub-pixel electrode includes a plurality of fine branch portions, the second sub-pixel electrodes include a connection portion surrounding the fine branch portions of the first sub-pixel electrodes, and a plurality of notches are formed in the connection portion of the second sub-pixel electrode.
1. A liquid crystal display, comprising:
gate lines and data lines arranged on a first substrate;
pixel electrodes connected to the gate lines and the data lines, each pixel electrode comprising a first sub-pixel electrode and a second sub-pixel electrode separated from each other by a gap;
a common electrode arranged on a second substrate, and facing the pixel electrodes; and
a liquid crystal layer disposed between the pixel electrodes and the common electrode, and comprising a plurality of liquid crystal molecules,
wherein each of the first sub-pixel electrode and the second sub-pixel electrode comprises a plurality of fine branch portions,
the second sub-pixel electrode comprises a connection portion surrounding the fine branch portions of the first sub-pixel electrode, and a plurality of notches are formed in the connection portion of the second sub-pixel electrode.
2. The liquid crystal display of claim 1 , wherein
each of the first sub-pixel electrode and the second sub-pixel electrode further comprises a plurality of sub-regions in which lengthwise directions of the fine branch portions are different from each other.
3. The liquid crystal display of claim 2 , wherein
the plurality of liquid crystal molecules are aligned with pretilt in the lengthwise direction of the fine branch portions.
4. The liquid crystal display of claim 2 , further comprising:
an alignment film arranged on the pixel electrodes or the common electrode,
wherein the alignment film is light-aligned in the lengthwise direction of the fine branch portions.
5. The liquid crystal display of claim 2 , wherein:
each of the first sub-pixel electrode and the second sub-pixel electrode further comprises a horizontal stem portion and a vertical stem portion that form boundaries of the plurality of sub-regions; and
the fine branch portions of the first sub-pixel electrode and the second sub-pixel electrode, respectively, extend toward the edges of the first sub-pixel electrode and the second sub-pixel electrode from the horizontal stem portion or the vertical stem portion.
6. The liquid crystal display of claim 1 , wherein
a part of boundaries of the fine branch portions of the first sub-pixel electrode is disposed on a first virtual straight line, and the gate lines are disposed on a second virtual straight line spaced apart from and parallel to the first virtual straight line.
7. The liquid crystal display of claim 6 , wherein
the first virtual straight line and the second virtual straight line are spaced apart from each other by 2 μm to 7 μm.
8. The liquid crystal display of claim 7 , wherein
the plurality of notches are disposed at equal intervals.
9. The liquid crystal display of claim 8 , wherein
the second sub-pixel electrode comprises three to five notches.
10. The liquid crystal display of claim 7 , wherein
the notches comprise the shape of a triangle, a quadrangle, a trapezoid, or a semicircle.
11. The liquid crystal display of claim 7 , wherein
a voltage of the first sub-pixel electrode is higher than a voltage of the second sub-pixel electrode.
12. The liquid crystal display of claim 1 , wherein
the plurality of notches are disposed at equal intervals.
13. The liquid crystal display of claim 12 , wherein
the second sub-pixel electrode comprises three to five notches.
14. The liquid crystal display of claim 1 , wherein
the notches comprise the shape of a triangle, a quadrangle, a trapezoid, or a semicircle.
15. The liquid crystal display of claim 1 , wherein
a voltage of the first sub-pixel electrode is higher than a voltage of the second sub-pixel electrode.