3. Introduction
DLP-Digital Light Processing
Invented by DR.LARRY HORNBECK in 1987
Made by semiconductor material
It consist of One or Three chips methods
It is used in video projector
4. Basic components of DLP
DMD chip (Digital Micromirror Device)
Light source
They are two methods
One chip system
Three chip system
7. DMD chip
It is a semiconductor material
It is core components,miscroscopic mirror
Matrix of micro mirrors 1024 X 768mm
Size of the mirrors: 16 X 16 um
8. Light source
High power LEDs or LASER source is used
It contain high pressure xenon arc lamp
LED based
Ordinary LEDs doesn’t produce intensity
LASER based
• The first commercially LASER based DLP was
introduced in 2008
9. Working of DLP
3-D printing process
Photopolymer resin.
Compare to stereo lithography DLP have much speed
Withstand the tensions and mechanical movement
High intensity LED’s are used
10. contd..
Depending on the application DLP system accept
either digital or analogue signal.
11. Advantages
Less maintenance than LCD
Low power consumption
All digital display from DLP chip
It is more reliable