Liquid crystal display apparatus having storage electrodes overlapping only some sub-pixels
View Patent ↗A liquid crystal display apparatus includes a plurality of pixel electrodes arrayed in a matrix, each pixel electrode of the plurality of pixel electrodes having first and second sub-pixel electrodes. The apparatus further includes a plurality of first switching devices connected to the first sub-pixel electrodes, a plurality of gate lines connected to the switching devices, a plurality of data lines connected to the first devices and passing between the pixel electrodes to transmit data voltages, and first and second storage electrodes disposed between the pixel electrodes and the data lines disposed at both sides of the pixel electrodes and overlapping the first sub-pixel electrodes.
1. A liquid crystal display apparatus comprising:
a plurality of pixel electrodes arrayed in a matrix, each pixel electrode of the plurality of pixel electrodes having first and second sub-pixel electrodes;
a plurality of first switching devices connected to the first sub-pixel electrodes;
a plurality of gate lines connected to the first switching devices;
a plurality of data lines connected to the first switching devices and passing between the pixel electrodes to transmit data voltages; and
first and second storage electrodes disposed between the pixel electrodes and the data lines; the first and second storage electrodes being disposed at both sides of the data lines and are separated from the data lines without overlapping them; and the first and second storage electrodes overlapping the first sub-pixel electrodes and neither the first nor second storage electrodes overlapping any portion of the second sub-pixel electrodes.
2. The liquid crystal display apparatus of claim 1 , wherein the first sub-pixel electrodes have first and second boundary lines disposed on the first and second storage electrodes.
3. The liquid crystal display apparatus of claim 1 , wherein the second sub-pixel electrodes are surrounded by the first sub-pixel electrodes.
4. The liquid crystal display apparatus of claim 1 , further comprising third storage electrodes overlapping the second sub-pixel electrodes and not overlapping the first sub-pixel electrodes.
5. The liquid crystal display apparatus of claim 4 , further comprising conductive members that are connected to the second sub-pixel electrodes and overlapping the third storage electrodes.
6. The liquid crystal display apparatus of claim 5 , wherein the conductive members have a pair of boundary lines that are disposed on the third storage electrodes and facing each other.
7. The liquid crystal display apparatus of claim 1 , further comprising second switching devices connected to the second sub-pixel electrodes, the gate lines and the data lines,
wherein a magnitude of the data voltages applied to the first and second sub-pixel electrodes of each of the pixels are different from each other and are obtained from the same image information.
8. The liquid crystal display apparatus of claim 7 , wherein the magnitude of the data voltages applied to the second sub-pixel electrodes is larger than a magnitude of the data voltages applied to the first sub-pixel electrodes with respect to a predetermined gray.
9. The liquid crystal display apparatus of claim 8 , wherein the data voltages are applied to the second sub-pixel electrodes after the data voltages to the first sub-pixel electrodes have been applied and terminated.
10. The liquid crystal display apparatus of claim 8 , wherein an area of each of the first sub-pixel electrodes is larger than an area of each of the second sub-pixel electrodes.
11. The liquid crystal display apparatus of claim 8 , further comprising third storage electrodes overlapping the second sub-pixel electrodes and not overlapping the first sub-pixel electrodes.
12. The liquid crystal display apparatus of claim 11 ,
wherein the second switching devices have gate electrodes connected to the gate lines, source electrodes connected to the data lines and drain electrodes connected to the second sub-pixel electrodes,
wherein the drain electrodes have enlarged portions overlapping the third storage electrodes, and
a distance between the enlarged portions and the third storage electrodes is smaller than a distance between the enlarged portions and the second sub-pixel electrodes.
13. The liquid crystal display apparatus of claim 12 , wherein the enlarged portions of the drain electrodes have a pair of boundary lines disposed on the third storage electrodes and facing each other.
14. The liquid crystal display apparatus of claim 1 , wherein the first and second sub-pixel electrodes are capacitively coupled to each other.
15. The liquid crystal display apparatus of claim 14 ,
wherein the first switching devices have the gate electrodes connected to the gate lines, source electrodes connected to the data lines and drain electrodes connected to the first sub-pixel electrodes, and
wherein the drain electrodes have coupling electrodes overlapping the second sub-pixel electrodes.
16. The liquid crystal display apparatus of claim 14 , wherein induced voltages at the second sub-pixel electrodes due to the capacitive coupling are lower than the voltages of the first sub-pixel electrodes with respect to a predetermined voltage.
17. The liquid crystal display apparatus of claim 16 , wherein an area of each of the second sub-pixel electrodes is larger than an area of each of the first sub-pixel electrodes.
18. The liquid crystal display apparatus of claim 1 , wherein neither the first nor second sub-pixel electrodes overlap the gate line connected thereto.