A LCD (Liquid Crystal Display) Projector is the modern version of the slide projector and overhead projector. Unlike CRT (Cathode Ray Tube) projectors, the LCD projector does not function according to the traditional projection-tube system.

The LCD Projector usually contains three separate LCD glass panels - one each for the red, green, and blue components of the video signal. The LCD chip is transparent, and when a powerful light source is passed through it, each individual pixel transforms the light and projects the image or data through a lens onto the screen.

The LCD Projector technological revolution started around the mid-1990s, when manufacturers began to use microdisplays and merge illumination and imaging in one device. Following this development, Compaq introduced one of the first ultra-lightweight data projectors in 2000 - the MP1400