Goa circuit

A GOA circuit adapted in a liquid crystal display panel comprising m stages GOA units, wherein a n-th stage GOA unit comprises:

• an output control module, a forward-backward scan control module, a node signal control module, a signal output module, a first pull-down circuit, a second pull-down circuit, and a pull-up circuit, wherein m≥n≥1;
• wherein said forward-backward scan control module controls said GOA circuit to execute forward scan or backward scan according to whether a forward scan control signal or a backward scan control signal is;
• wherein said output control module is connected with said forward-backward scan control module to control a gate driving signal outputted by n-th stage when said GOA circuit is executing forward scan or backward scan;
• wherein said first pull-down circuit comprises a 7th thin-film-transistor which a first end of said 7th thin-film-transistor is connected with said output control module and a second end of said 7th thin-film-transistor is connected with low voltage signal;
• wherein said signal output module comprises a 5th thin-film-transistor which a first end of said 5th thin-film-transistor is connected with high voltage signal and a second end of said 5th thin-film-transistor is connected with a third end of said 7th thin-film-transistor;
• wherein said node signal control module is connected with a third end of said 5th thin-film-transistor so as to output a clock signal to said 5th thin-film-transistor in order to control said 5th thin-film-transistor as conducting or non-conducting;
• wherein said second pull-down circuit is connected with the third end of said 5th thin-film-transistor and adapted to pull down the voltage level of the third end of said 5th thin-film-transistor when said liquid crystal display panel is out of power so as to control said 5th thin-film-transistor as non-conducting;
• wherein said pull-up circuit comprises an 8th thin-film-transistor which a first end of said 8th thin-film-transistor is connected with the third end of said 7th thin-film-transistor, a second end of said 8th thin-film-transistor is connected with low voltage signal, a third end of said 8th thin-film-transistor is connected with a first global control signal;
• wherein said second pull-down circuit further comprises a 14th thin-film-transistor which a second end of said 14th thin-film-transistor is connected with low voltage signal, a first end of said 14th thin-film-transistor is connected with the third end of said 5th thin-film-transistor, and a third end of said 14th thin-film-transistor is connected with said first global control signal;
• and
• wherein said first end is one of source or drain, said second end is the other, and said third end is gate.