Array substrate and liquid crystal display panel
View Patent ↗Disclosed are an array substrate and a liquid crystal display panel. The array substrate includes a plurality of gate lines and a plurality of data lines. The plurality of gate lines and the plurality of data lines are interleaved to form a plurality of pixel areas, and a pixel electrode is formed in each of the pixel areas. The pixel electrode is connected to a corresponding gate line and a corresponding data line via a thin film transistor. The array substrate further includes a common electrode, which is connected to a first pixel electrode and a second electrode via a thin film transistor. A signal in the first pixel electrode and a signal in the second pixel electrode have opposite polarities. The array substrate realizes automatic adjustment of a common electrode voltage, and corresponding regulators or machines are no longer needed. It is favorable to improvement of productivity and competitiveness of the array substrate and the liquid crystal display panel.
1. An array substrate, comprising a plurality of gate lines and a plurality of data lines, wherein the plurality of gate lines and the plurality of data lines are interleaved to form a plurality of pixel areas, a pixel electrode is formed in each of the pixel areas, and the pixel electrode is connected to a corresponding gate line and a corresponding data line via a thin film transistor,
wherein the array substrate further comprises a common electrode, which is connected to a first pixel electrode and a second pixel electrode via a thin film transistor, wherein a signal in the first pixel electrode and a signal in the second pixel electrode have opposite polarities, and
wherein a voltage of the common electrode is provided by the pixel electrode.
2. The array substrate according to claim 1 , wherein the first pixel electrode and the second pixel electrode are two pixel electrodes in adjacent pixel electrode rows or adjacent pixel electrode columns.
3. The array substrate according to claim 2 , wherein the common electrode is connected to the first pixel electrode via a first thin film transistor and connected to the second pixel electrode via a second thin film transistor,
wherein a gate and a source of the first thin film transistor are connected to a first gate line and the first pixel electrode, respectively;
wherein a gate and a source of the second thin film transistor are connected to the first gate line and the second pixel electrode, respectively; and
wherein a drain of the first thin film transistor and a drain of the second thin film transistor both are connected to the common electrode.
4. The array substrate according to claim 1 , wherein the common electrode is connected to the first pixel electrode via a first thin film transistor and connected to the second pixel electrode via a second thin film transistor,
wherein a gate and a source of the first thin film transistor are connected to a first gate line and the first pixel electrode, respectively;
wherein a gate and a source of the second thin film transistor are connected to the first gate line and the second pixel electrode, respectively; and
wherein a drain of the first thin film transistor and a drain of the second thin film transistor both are connected to the common electrode.
5. The array substrate according to claim 4 , wherein the first pixel electrode and the second pixel electrode are respectively connected to a second gate line and a third gate line via corresponding thin film transistors.
6. The array substrate according to claim 1 , wherein:
the common electrode is connected to a plurality of pixel electrodes in a pixel electrode row where the first pixel electrode is located, and the common electrode is further connected to a plurality of pixel electrodes in a pixel electrode row where the second pixel electrode is located; or
the common electrode is connected to a plurality of pixel electrodes in a pixel electrode column where the first pixel electrode is located, and the common electrode is further connected to a plurality of pixel electrodes in a pixel electrode column where the second pixel electrode is located.
7. The array substrate according to claim 1 , wherein the common electrode comprises a plurality of common electrode lines,
wherein the plurality of common electrode lines are arranged side by side along a direction of the data lines, or the plurality of common electrode lines are arranged side by side along a direction of the gate lines.
8. The array substrate according to claim 1 , wherein the common electrode comprises a plurality of common electrode lines, which comprise a plurality of row common electrode lines and a plurality of column common electrode lines, wherein the plurality of row common electrode lines are arranged side by side along the direction of the gate lines, and the plurality of column common electrode lines are arranged side by side along the direction of the data lines.
9. The array substrate according to claim 1 , further comprising a signal output terminal which is connected to the common electrode and configured to output signals of the common electrode to a common electrode of an opposite substrate.
10. A liquid crystal display panel, comprising an array substrate, wherein the array substrate comprises a plurality of gate lines and a plurality of data lines, the plurality of gate lines and the plurality of data lines are interleaved to form a plurality of pixel areas, a pixel electrode is formed in each of the pixel areas, and the pixel electrode is connected to a corresponding gate line and a corresponding data line via a thin film transistor,
wherein the array substrate further comprises a common electrode, which is connected to a first pixel electrode and a second pixel electrode via a thin film transistor, wherein a signal in the first pixel electrode and a signal in the second pixel electrode have opposite polarities, and
wherein a voltage of the common electrode is provided by the pixel electrode.
11. The liquid crystal display panel according to claim 10 , wherein the first pixel electrode and the second pixel electrode are two pixel electrodes in adjacent pixel electrode rows or adjacent pixel electrode columns.
12. The liquid crystal display panel according to claim 11 , wherein the common electrode is connected to the first pixel electrode via a first thin film transistor and connected to the second pixel electrode via a second thin film transistor,
wherein a gate and a source of the first thin film transistor are connected to a first gate line and the first pixel electrode, respectively;
wherein a gate and a source of the second thin film transistor are connected to the first gate line and the second pixel electrode, respectively; and
wherein a drain of the first thin film transistor and a drain of the second thin film transistor both are connected to the common electrode.
13. The liquid crystal display panel according to claim 10 , wherein the common electrode is connected to the first pixel electrode via a first thin film transistor and connected to the second pixel electrode via a second thin film transistor,
wherein a gate and a source of the first thin film transistor are connected to a first gate line and the first pixel electrode, respectively;
wherein a gate and a source of the second thin film transistor are connected to the first gate line and the second pixel electrode, respectively; and
wherein a drain of the first thin film transistor and a drain of the second thin film transistor both are connected to the common electrode.
14. The liquid crystal display panel according to claim 13 , wherein the first pixel electrode and the second pixel electrode are respectively connected to a second gate line and a third gate line via corresponding thin film transistors.
15. The liquid crystal display panel according to claim 10 , wherein:
the common electrode is connected to a plurality of pixel electrodes in a pixel electrode row where the first pixel electrode is located, and the common electrode is further connected to a plurality of pixel electrodes in a pixel electrode row where the second pixel electrode is located; or
the common electrode is connected to a plurality of pixel electrodes in a pixel electrode column where the first pixel electrode is located, and the common electrode is further connected to a plurality of pixel electrodes in a pixel electrode column where the second pixel electrode is located.
16. The liquid crystal display panel according to claim 10 , wherein the common electrode comprises a plurality of common electrode lines,
wherein the plurality of common electrode lines are arranged side by side along a direction of the data lines, or the plurality of common electrode lines are arranged side by side along a direction of the gate lines.
17. The liquid crystal display panel according to claim 10 , wherein the common electrode comprises a plurality of common electrode lines, which comprise a plurality of row common electrode lines and a plurality of column common electrode lines, wherein the plurality of row common electrode lines are arranged side by side along the direction of the gate lines, and the plurality of column common electrode lines are arranged side by side along the direction of the data lines.
18. The liquid crystal display panel according to claim 10 , wherein the array substrate further comprises a signal output terminal which is connected to the common electrode and configured to output signals of the common electrode to a common electrode of an opposite substrate.
19. The liquid crystal display panel according to claim 10 , further comprising a color filter, wherein the color filter comprises a common electrode, and the common electrode in the color filter is connected to the common electrode in the array substrate.