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Differences Between DLP and LCD

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Update time : 2018-08-21 14:52:04
The difference between DLP and LCD projection.

1, LCD work principle:


The principle of this technology is to use the photoelectric effect of liquid crystal molecule to change the arrangement of liquid crystal molecule by electric field, so that the optical characteristics of liquid crystal will be changed by the change of transmittance and reflectivity, and finally produce different gray level or color image.

2, LCD advantages:


The main advantage of the LCD projector is that its three primary colors are composed of three separate LCD panels. The brightness and contrast of each color are controlled separately, so the resolution is high and the picture level is good. And because the projection mode of LCD has been very mature, and the synchronization level of the three primary colors has achieved satisfactory results, the LCD projector is more suitable for the projection output of the dynamic picture. But the most important thing is that the price is cheap.

3, DLP work principle:


DLP is the abbreviation of Digital Light Processor, the Chinese name is digital optical processing technology. This technology is a new idea in the field of projection and display information. As a fully digital reflective projection technology, DLP projector uses DMD (Digital Micromirror Device) digital micromirror as the imaging element to complete the final display of digital link.

4, DLP advantages:


Due to the high integration of the chip, DLP projection has an inherent advantage in power consumption and is not easy to affect image quality due to environmental factors such as high temperature, humidity and vibration. Full digital image processing provides more flexible applications, whether viewing television, home theaters, Internet access, playing video games or browsing digital camera images, through the use of DLP projectors to complete. And all digital reflective projection technology, using digital technology can greatly improve the gray level of the image, make the image noise disappear and stabilize the quality of the picture, in the image positioning is much more accurate than before, so the obtained image contrast is higher, appears more full. Moreover, the total optical efficiency of the imaging device is greatly improved by using the reflective DMD device. At present, most of the DLP projectors on the market are monolithic projectors, the color uniformity is more prominent, in the projection of text, CAD, slides more outstanding effect, plus DLP projectors have a very high contrast, even in the case of low brightness can still maintain a clear and sharp image.