DLP

DLP Chip

DLP Chip

DLP or Digital Light Processing originally developed by Dr. Larry Hornbeck from Texas Instruments in 1987.which was invented DLP chip

HOW DLP WORKS
In DLP projectors, the image is created by microscopically small mirrors laid out in a matrix on a semiconductor chip, it contains a rectangular array of up to 2 milion hinge-mounted microscopic mirrors, known as a DMD (Digital Micromirror Device)Each mirror represents one or more pixels in the projected image. The number of mirrors corresponds to the resolution of the projected image (often half as many mirrors as the advertised resolution due to wobulation). 800×600, 1024×768, 1280×720, and 1920×1080 (HDTV) matrices are some common DMD sizes. These mirrors can be repositioned rapidly to reflect light either through the lens or on to a heatsink (called a light dump in Barco terminology).
Rapidly toggling the mirror between these two orientations (essentially on and off) produces grayscales, controlled by the ratio of on time to off time.

COLOR IN DLP
There are two primary methods by which DLP projection systems create a color image :
1. Single-chip DLP projectors and those used by
Single-chip system can create at least 16.7 million colors.
2. Three-chip projectors.
3-chip system found in DLP Cinema® projection systems is capable of
producing no fewer than 35 trillion colors.
3. A third method, sequential illumination by three colored light emitting diodes
(being developed, currently used in televisions manufactured by Samsung).

SINGLE-CHIP DLP PROJECTION SYSTEM

Single CHIP

Single CHIP

In 1-chip DLP Projection System, the White light which generated by the lamp passes through a color filter, causing red, green, blue and even additional primary colors such as yellow cyan, magenta and more to be shone in sequence on the surface of the DLP® chip. The switching of the mirrors, and the proportion of time they are ‘on’ or ‘off’ is coordinated according to the color shining on them. Then the sequential colors blend to create a full-color image you see on the screen.

THREE-CHIP DLP PROJECTION SYSTEM

Three CHIP

Three CHIP

In a 3-chip system, the white light generated by the lamp passes through a prism, the prism divides it into red, green and blue. Each DLP® chip is dedicated to one of these three colors; the colored light that the micromirrors reflect is then combined and passed through the projection lens to form an image.

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