METHOD FOR DISCHARGING RESIDUAL VOLTAGE OF CATHODE RAY TUBE WHEN POWER SUPPLY IS OFF

摘要

PURPOSE: A method for discharging residual voltage of a CRT(Cathode Ray Tube) is provided to rapidly down the residual operating voltage in a Braun tube, when power supply is off. CONSTITUTION: A TV set receives an R.G.B signal amplified imaginally by a control of an image processor, and emits an electron according to the R.G.B signal. The TV set provides high voltage over the certain value on an aluminum plate of the fluorescent side, to collide an electron gun for scanning an electron beam with the electron beam on the fluorescent side, and has a CRT(Cathod Ray Tube) for being composed of an anode terminal for discharging high voltage when power supply is off. A method for discharging residual voltage of the CRT comprises the steps of: providing an arbitrary R.G.B signal while residual voltage of operating voltage exists, supplied to the image processor when power supply is off; forming the electron beam according to the R.G.B signal; and scanning to inside of the CRT.