The invention relates to a plate display in short-circuit prevent cathode protection structure and relative production, wherein it comprises an anode glass panel, a cathode glass panel, and a sealing vacuum chamber surrounded by four glass frames; the anode glass panel is arranged with anode conductive layer and a fluorescent powder layer is above the conductive layer; a support wall structure and a gattering additional element are between the anode glass panel and the cathode glass panel; a control grid, a carbon nanometer tube cathode and short-circuit prevent cathode protection structure are arranged on the cathode glass panel. The invention can effectively avoid short circuit between control grid can cathode, to improve the production success and reduce the working voltage, with lower cost and simple structure. |