Driving circuit, method of testing driving circuit, electro-optical apparatus, and electro-optical device

摘要

To provide a highly-reliable testing method of a level shifter, a driving circuit of an electro-optical panel includes a shift register, a level shifter, and a logic operation device. The shift register sequentially outputs first transfer pulses from a plurality of stages. The level shifter shifts the voltage level of each of sequentially-output first transfer pulses thereby outputting a sequence of second transfer pulses as driving signals. The logic operation device performs a logic operation on sequentially-output second transfer pulses thereby outputting test signals the number of which is smaller than the number of stages of the shift register.