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 ...

Researchers, led by an Indian-origin scientist, have developed a new polarizing filter that allows in more light, paving the way for efficient LCD display and cameras that can shoot in dim light.

LCD technology utilizes the light-modulating properties of liquid crystals combined with polarizers. These crystals do not emit light directly but use a backlight or reflector to produce images in ...

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.