The invention relates to a method for disinfecting display screen surfaces of electronic devices. Mobile communication devices, especially those which a reused in the medical sector, have plastic surfaces, often in the form of display screen surfaces. These surfaces cannot be disinfected with conventional alcoholic disinfectants. The disinfectant used in this invention contains a mixture of ethanol, 1-propanol and 2-propanol, an antimicrobial, amphoteric surfactant and water. This disinfectant enables effective eradication of microorganisms such as fungi, bacteria and yeasts, and has the further advantage of being compatible with the materials of the surfaces.