1, DLP: digital light processing, that is to say, this technology processes the image signal digitally first, and then projects light.
2.LCD: It is the product of the combination of liquid crystal display technology and projection technology.
Second, the principle is different.
1, DLP: Digital micro-mirror chip (DMD) is used as the main key processing element to realize digital optical processing.
2.LCD: Red, green and blue liquid crystal panels are used as the control layers of red, green and blue light respectively. The white light emitted by the light source is converged to the dichroic mirror group after passing through the lens group, and the red light is first separated and projected on the red liquid crystal panel, and the image information expressed transparently under the "recording" of the liquid crystal panel is projected to generate the red light information in the image.
Third, the characteristics are different.
1, DLP: It is an original solution to make digital multi-light display by using optical semiconductors. It is a highly reliable all-digital display technology, which can provide the best image effect in various products, such as large-screen digital TV, corporate/family/professional conference projectors and digital cameras (DLP cinemas).
2.LCD: Using the electro-optical effect of liquid crystal, the transmittance and reflectivity of liquid crystal box are controlled by circuit, thus producing beautiful images with different gray levels and up to16.7 million colors.
Baidu encyclopedia-LCD
Baidu encyclopedia -DLP