Gate driver on array substrate and liquid crystal display adopting the same

A gate driver on array (GOA) substrate, comprising:

• a plurality of pixel units arranged in an array;
• a plurality of transistors, each electrically connected to one of the pixel units;
• and
• N shift register units, connected in cascade, with each M shift register units controlled by M clock signals;
• the first stage shift register unit outputs a scan signal pulse from the output terminal based on a first clock signal and a start signal;
• the last stage shift register unit outputs a scan signal pulse from an output terminal based on a Mth clock signal and the start signal, where N and M are positive integers, and N is larger than M;
• wherein the start signal has a pulse width starting from a falling edge of the Mth clock signal of the last stage shift register unit when scanning a first frame, and ending at a rising edge of the first clock signal of the first stage shift register unit when scanning a second frame;
• the second frame is the frame following the first frame.

A liquid crystal display, comprising:

• a source driver, for outputting data signal to a plurality of pixel units to show images;
• and
• a gate driver on array (GOA) substrate, for outputting scan signals to turn on a plurality of transistors, the GOA substrate comprising:
• N shift register units, connected in cascade, with each M shift register units controlled by M clock signals;
• the first stage shift register unit outputs a scan signal pulse from the output terminal based on a first clock signal and a start signal;
• the last stage shift register unit outputs a scan signal pulse from an output terminal based on a Mth clock signal and the start signal, where N and M are positive integers, and N is larger than M;
• wherein the start signal has a pulse width starting from a falling edge of the Mth clock signal of the last stage shift register unit when scanning a first frame, and ending at a rising edge of the first clock signal of the first stage shift register unit when scanning a second frame;
• the second frame is the frame following the first frame.