1. A method for controlling a cartridge of a welding helmet, the method comprising: sequentially performing a welding step, a cutting step, a grinding step, and an X-mode step automatically according to a preset condition, a shade level of an LCD screen, and an operating time of the cartridge, wherein the cartridge includes the LCD screen, a display unit, a controller, and a memory; calculating, by the controller, a work time during which the LCD screen of the cartridge is darkened and storing the calculated work time in the memory and displaying the stored work time on the display unit when entering a life mode entrance step, and storing data of an operating state in multiple preset languages in the memory and displaying data of the operating state in one language, which the controller has selected from among the multiple preset languages, on the display unit, wherein the cartridge further includes a voice recognition unit for recognizing voice of a user, and wherein the controller determines a language recognized by the voice recognition unit and selects data of an operating state of the recognized language stored in the memory and displays the data of the operating state of the recognized language on the display unit.
5. The method according to claim 1 , wherein the display unit immediately displays a work time when the controller enters the life mode to save power consumption.