(1) (Data Loss Prevention) Systems that monitor data to prevent their dissemination into unauthorized hands. DLP may be implemented in stand-alone computers in the network that analyze the traffic, while software in user's machines and servers evaluate the use of data being read on the local drives.
(2) (Digital Light Processing) A data projection technology from TI that produces clear images on screens in lit rooms. DLP is used in projection devices that weigh only a few pounds to movie theater projectors. It was also used in earlier rear-projection TVs.
DLP uses a spatial light modulator called a "Digital Micromirror Device" (DMD). The DMD is a memory chip covered with hinged, microscopic electromechanical mirrors, one for each pixel on the screen. For example, a 1280x1024 resolution uses more than a million "micromirrors," which tilt 10 degrees forward or backward, acting as light switches. Each mirror is 16 micrometers square, and all of them fit on a CMOS chip the size of a postage stamp.
The state of each memory bit (0 or 1) in the video frame causes the mirror to tilt in one direction to direct light through a lens to the screen, or tilt in the other direction to deflect it. Gray scale is created by causing the mirrors to oscillate some number of times within each 16 millisecond video frame.
On one-chip projectors, color is achieved by beaming red, green and blue light onto the chip sequentially. The light source can be a mercury vapor lamp shining through a spinning color wheel or light from three LEDs. The oscillating mirrors create the shades of color. Offering longer life and greater contrast, LED-based DLPs began to ship in 2006. Three-chip units use three sets of mirrors, one each for red, green and blue, and the resulting three images are combined for projection. See DLP projector, MicroTiles, Wobulation, microdisplay, 3LCD and rear-projection TV.