The invention relates to a plate display in concave star grid control cathode array emission 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 s concave star grid control cathode array emission structure are arranged on the cathode glass panel. The invention can effectively shorten the distance between grid and cathode, improve the control ability of grid, reduce the working voltage and improve the display brightness of whole device, with lower cost and simple structure. |