Validating a physical touch event in optical touch screens

A hybrid optical-physical touch screen configured to distinguish between ambiance vibrations and a deliberate touch event, comprising:

• an electronic panel display;
• one or more optical sensors coupled to the electronic panel display and configured to determine, a spatial location of a physical object on an X-Y plane near the electronic panel display;
• one or more physical touch sensors coupled to the electronic panel display and configured to determine a physical touch event between the physical object and the electronic panel display;
• and
• a processor configured to compare the determined spatial location of the physical object with the determined physical touch event between the physical object and the display at a same time, and determine, based on predefined parameters, whether an intentional physical touch event between the physical object and the electronic panel display has occurred,
• wherein the physical touch sensors are configured to measure a mechanical frequency level of the entire electronic panel display, wherein above a predefined level of detected mechanical frequency of the electronic panel display, the processor determines ambiance vibrations, and below the predefined level, the processor determines a deliberate physical touch event.