DLP

(language)Distributed Logic Programming.

DLP

(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, readable images on screens in lit rooms. DLP is used in all types of projection devices, from data projectors that weigh only a few pounds to large rear-projection TVs to electronic cinema projectors for movie theaters.

All in the Mirrors
The technology 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.

Tilt and Oscillate
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 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. More costly 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 MicroTiles, Wobulation, microdisplay and rear-projection TV.

DLP Processing

In this one-chip example, each screen frame from the computer is sent to the memory on the DLP chip to provide the data for moving the mirrors. The light source is a mercury vapor lamp beamed through a spinning color wheel or separate red, green and blue LEDs. Drawing less power and producing a higher contrast, the LEDs last 20 years under normal usage, compared to four for the very expensive mercury lamp.

A Single Pixel

Hard to believe, but more than a million of these light switches, only 16 micrometers square, are fabricated onto one CMOS chip. The state of the memory cell (0 or 1) tilts the mirror to reflect or cancel light. Gray scale is achieved by causing the mirrors to oscillate back and forth. (Redrawn from original diagram courtesy of Texas Instruments, Inc.)

DMD vs. LCD

The gap between the mirrors in a DMD pixel (left) is smaller than the gap in an LCD display (right), resulting in a sharper display.

DLP

Acronym	Definition
DLP➣Digital Light Processing
DLP➣Data Loss Prevention (information technology)
DLP➣Disneyland Paris
DLP➣Derrière la Porte (French: Behind the Door; art website)
DLP➣Distribution Leader Price (discount retailer; France)
DLP➣Data Leak Prevention
DLP➣Democratic Labor Party
DLP➣Digital Likelihood Processing
DLP➣Dual Logical Processor
DLP➣Dynamic Logic of Permission
DLP➣Distributed Logic Programming
DLP➣Digital Light Projection
DLP➣Data Level Parallelism
DLP➣Data Loss Prevention
DLP➣Discrete Logarithm Problem (number-theoretic reference problem)
DLP➣Distance Learning Program
DLP➣Disneyland Park (Disney resort)
DLP➣Distributed Library Project
DLP➣Dental Lab Products (publication)
DLP➣Data Link Protocol
DLP➣Dynamic Logic Programming
DLP➣Dose Length Product (measure of total exposure for a study in Computed Tomography)
DLP➣Dominica Labor Party
DLP➣Device Link Profile
DLP➣Distance Learning Partnership (UK)
DLP➣Direction de la Lecture Publique (French: Directorate of Public Reading; also seen as DLLP)
DLP➣Delta Lambda Phi (fraternity)
DLP➣Digital Light Projector
DLP➣Direct Loan Program
DLP➣Disabilities Law Project (Pennsylvania, USA)
DLP➣Data-Level Parallelism
DLP➣Digital License Plate
DLP➣Disability Law and Policy Program (Syracuse University; New York)
DLP➣Delactosed Permeate (effluent)
DLP➣Date of Last Payment
DLP➣Data Link Processor
DLP➣Distinguished Lecturer Program
DLP➣Defect Liability Period
DLP➣Defence Learning Portal
DLP➣Dominican Liberation Party (political group)
DLP➣Distinguished Lecturers Program
DLP➣Depository Library Program
DLP➣Dairy, Livestock and Poultry (USDA)
DLP➣Direct Link Protocol (IEEE 802.11e)
DLP➣Discrete Logarithmic Problem
DLP➣Distributed Logic Programming Language
DLP➣Desktop Link Protocol (PalmPilot HotSync protocol)
DLP➣Data Life Plus
DLP➣Defense Language Program
DLP➣Développement des Loisirs de Plage (French: Beach Recreation Development)
DLP➣Distance Learning Pack (UK)
DLP➣Direct-Labeled Probe
DLP➣Digital Laser Projector
DLP➣Dragons Lair Project (gaming)
DLP➣Dark Lord Potter (discussion forum)
DLP➣Digital Light Pipe
DLP➣Dreamland Park
DLP➣Data Link Pod
DLP➣Decode Level Point
DLP➣Doctrinal Literature Program
DLP➣Director of Laboratory Programs
DLP➣Dimension/Length Profile
DLP➣Display Link Parallel
DLP➣Dell Logistics Provider
DLP➣Digital Llama Productions
DLP➣Digitell Legacy Productions
DLP➣David Laurence Phillips (DLP Associates, architecture firm)
DLP➣Dual Linearly Polarized
DLP➣Depot Level Spares
DLP➣Don Logay Productions (Laguna Niguel, CA)