| Specific questions about projectors |
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What is the difference between DLP and LCD technology?
| Most projectors use LCD technology. This splits light into the primary colours red, green and blue. Each colour is then directed through an LCD display acting as a ‘light valve’ and the light is then reassembled. There is an LCD display for each individual pixel and each primary colour. DLP technology involves the use of huge numbers of tiny quadratic mirrors arrayed on a Texas Instruments DMD chip. Only when a mirror is tilted will it reflect the light shining onto it back towards the screen. This very high-frequency switching on and off of points of light is not perceived by the human eye and allows different shades of colour to be portrayed. The colours are generated by a colour ribbon featuring the primary colours red, green and blue.
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