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Soleil-PJ1Training
Slide 63
DLP Projectors (1)
The DLP chip is the central part of this type of projector.
A DLP chip consists of many small pixel-sized mirrors laid out on a semi-
conductor chip. Light shone on the DLP chip is reflected by all these tiny
mirrors. (For a chip with 1024 x 768 resolution, there are 786,432 small
mirrors.)
Light is shone onto the chip through a fast-spinning wheel that has a red
sector, a green sector, and a blue sector. This light is reflected off the
chip and out through a lens onto a screen.
Projector Lens
DLP Chip
Lamp
Lens
Lens
Color Wheel
DLP (Digital Light Processing) was developed by Texas Instruments in
1987.
The DLP chip is also known as a Digital Micromirror Device (DMD).
DLP technology uses light reflection, which leads to a brighter image than a
light-transmission type of device such as an LCD projector.
