Active device array substrate and liquid crystal panel

A liquid crystal panel, comprising:

• an active device array substrate, comprising:
• a substrate, including a display area and a peripheral circuit area adjacent with each other;
• a pixel array disposed in the display area;
• a plurality of switching elements used for detection, disposed in the peripheral circuit area, each of the plurality of switching elements used for detection comprises:
• a semiconductor layer;
• a plurality of first electrode branches, connected to each other and disposed on the semiconductor layer, and respectively extends along a first direction and a second direction;
• a plurality of second electrode branches, connected to each other and disposed on the semiconductor layer, and respectively extends along the first direction and the second direction;
• wherein, in the first direction, the first electrode branches and the second electrode branches form a plurality of first conductive channels via the semiconductor layer, a portion of the lengths of the first conductive channels are the same;
• and
• in the second direction, the first electrode branches and the second electrode branches form a plurality of second conductive channels via the semiconductor layer, a portion of the lengths of the second conductive channels are the same;
• a color filter substrate, disposed opposite to the active device array substrate;
• and
• a liquid crystal layer, disposed between the active device array substrate and the color filter substrate,
• wherein, a pattern formed by the first electrode branches complements a pattern formed by the second electrode branches.