The invention discloses a plane
display device provided with a testing mechanism and used for avoiding that a short-circuit wiring is arranged in an outer-pin
landing zone to limit a
bus-array wiring area. The plane
display device mainly comprises a substrate provided with a plurality of driving-
chip arrangement zone, a plurality of
signal cables and transmitting cables which are arranged on the substrate, and a plurality of short-circuit wires arranged in the driving-
chip arrangement zones. Each short-circuit wire is respectively coupled with a corresponding
signal cable and a corresponding transmitting cable. Moreover, a plurality of transistors can be arranged in each driving-
chip arrangement zone to control the
signal connection between the short-circuit wires and signal cables and also control the signal connection between the short-circuit wires and transmitting cables so as to avoid a
laser cutting program of the manufacturing process of the plane
display device to reduce the manufacturing cost.