Array substrate, method of manufacturing the same, display panel having the same, and liquid crystal display apparatus having the same
View Patent ↗An array substrate includes a switching device, a storage capacitor and a voltage-dividing capacitor. The switching device is formed in a pixel region defined by two gate lines adjacent to each other and two data lines adjacent to each other. The storage capacitor is electrically connected to the switching device. The voltage-dividing capacitor is disposed between the storage capacitor and one of the gate lines. The voltage-dividing capacitor is electrically connected to the storage capacitor. Therefore, an overlapping area with the data lines is reduced to reduce the RC delay and enhance aperture ratio. Furthermore, a possibility of occurrence of an electrical short is reduced.
1. A display panel comprising:
a first substrate including a common electrode;
a second substrate facing the first substrate, the second substrate comprising:
a switching device formed in a pixel region;
a first sub pixel electrode connected to a drain electrode of the switching device and receiving a first voltage;
a second sub pixel electrode receiving a second voltage, the second voltage is different from the first voltage; and
a third sub pixel electrode receiving a third voltage, the third voltage is different from the first voltage; and
a liquid crystal layer disposed between the first and second substrates,
wherein the first sub pixel electrode receives the first voltage from a storage capacitor,
the second sub pixel electrode receives the second voltage from a first voltage-dividing capacitor, the first voltage-dividing capacitor comprises a first floating electrode electrically connected to the second sub pixel electrode and a first voltage-dividing capacitor electrode, and
the third sub pixel electrode receives the third voltage from a second voltage dividing capacitor, the second voltage-dividing capacitor comprises a second floating electrode electrically connected to the third sub pixel electrode and a second voltage-dividing capacitor electrode,
wherein the second and third sub pixel electrodes are separate and distinct from that of the first and second floating electrodes.
2. The display panel of claim 1 , wherein the storage capacitor includes a storage common wiring dividing the pixel region into a first region and a second region, and a storage electrode extended from the drain electrode of the switching device, the storage electrode disposed over the storage common wiring,
the first floating electrode is disposed in the first region, the first voltage-dividing capacitor electrode extended from the storage electrode, the first voltage-dividing capacitor electrode disposed over the first floating electrode, and
the second floating electrode is disposed in the second region, the second voltage-dividing capacitor electrode extended from the storage electrode, the second voltage-dividing capacitor electrode disposed over the second floating electrode.
3. The display panel of claim 2 , wherein the first and second floating electrodes and a plurality of gate lines are formed from the same metal layer.
4. The display of claim 2 , wherein the first and second voltage-dividing capacitor electrodes and a plurality of data lines are formed from the same metal layer.
5. The display panel of claim 2 , wherein the first sub pixel electrode is disposed in both the first region and the second region and occupies a greater area of the pixel region than the second and third sub pixel electrodes.
6. The display panel of claim 2 , wherein the first sub pixel electrode is electrically connected to the storage electrode of the storage capacitor,
the second sub pixel electrode is electrically connected to the first floating electrode of the first voltage-dividing capacitor and disposed in the first region, and
the third sub pixel electrode is electrically connected to the second floating electrode of the second voltage-dividing capacitor and disposed in the second region.
7. The display panel of claim 2 , wherein the first floating electrode is larger than the second floating electrode.
8. The display panel of claim 1 , wherein the first voltage is larger than the second voltage, and
the second voltage is larger than the third voltage.
9. The display panel of claim 8 , wherein a capacitance of the storage capacitor is larger than a capacitance of the first voltage-dividing capacitor, and
the capacitance of the first voltage-dividing capacitor is larger than a capacitance of the second voltage-dividing capacitor.
10. The display panel of claim 1 , wherein the first, second, and third sub pixel electrodes comprise opening patterns.