Liquid crystal display device

A display device comprising:

• a substrate;
• pixel electrodes arranged in a matrix in a display region;
• gate lines arranged on the substrate along a first direction in which the pixel electrodes are arranged;
• source lines arranged on the substrate along a second direction that crosses the first direction;
• pixel switches configured to switch connection between the pixel electrodes and the source lines in accordance with drive signals supplied from the gate lines;
• a peripheral region located around a periphery of the display region of the substrate;
• switches arranged in the peripheral region of the substrate along the first direction;
• an external signal source disposed in the peripheral region of the substrate,
• first control lines electrically connected to gate electrodes of the switches and extending along the first direction;
• second control lines electrically connected to the first control lines and extending along the second direction, and
• third control lines electrically connected to the external signal source and extending along the first direction,
• wherein
• the external signal source supplies a source control signal to the third control lines,
• both ends of each of the gate lines are connected to gate drivers which output the drive signals,
• the source lines are electrically connected to drain electrodes of the switches,
• each of the first control lines and a corresponding one of the third control lines are electrically connected to each other by a corresponding one of the second control lines in a center of the first control line in the first direction,
• the second control lines and the third control lines are not directly connected to the switches, and
• the first control lines and the second control lines are directly connected to each other, and the second control lines and the third control lines are directly connected to each other.