Computer monitors have become larger and larger over the decades, making it easier for passersby to read sensitive information or activities over one's shoulders. An additional layer of security (and ...

Removing a filter from an LCD monitor shows a blank screen to anyone not wearing polarized glasses. Removing a filter from an LCD monitor shows a blank screen to anyone not wearing polarized glasses.

Engineers have developed a polarizing filter that allows in more light, leading the way for mobile device displays that last much longer on a single battery charge and cameras that can shoot in dim ...