The digital light processing projector is a kind of projection technology which uses the digital micromirror device DMD chip as an imaging device by Texas Instruments, and adjusts the reflected light to realize a projected image. It is very different from the liquid crystal projector. Its imaging is achieved by reflecting light through thousands of tiny lenses. The core technology of the DLP chip has been controlled by Texas Instruments in the United States. DLP technology seems to be chasing the path of Intel Inside, because it requires that all projector products using DLP technology must be marked with DLP. Regardless of whether it will achieve Intel's achievements in the PC field, it at least shows its determination to lead the underlying technology of the projector. The manufacturers of DLP are mainly European and American manufacturers, such as ASK, Hewlett-Packard, and Vivitek.
DLP projectors are divided into: single-chip DMD machine (mainly used in portable projection products), two DMD machine (for large-scale mosaic display wall), three DMD machine (for ultra-high brightness projectors).