SCANNING SIGNAL LINE DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING SAME

摘要

Provided is a gate driver including an easily testable shift register for the purpose of improving panel yield. The monolithic gate driver includes a shift register (410) that operates based on four-phase clock signals. Each stage of the shift register (410) includes: an inter-stage connection wire for receiving, from a stage different from itself, a clock signal other than a clock signal received from clock signal main wiring; and a contact for connecting a wire formed in the each stage and the inter-stage connection wire. The shift register (410) is grouped every consecutive four stages, and markings (421 to 424) formed by a different number of plane view circular structural objects are formed on respective four stage bistable circuits included in each group so that the same type of the marking appears every four stages.