DLP display technology in home projector

Looking at the projector again, the working principle of the chip is nothing more than CRT, LCD, DLP and LCOS.

Why does DLP display technology occupy nearly half of the domestic projector market?

Among them, DLP camp has experienced a rapid development stage since 2004. In February 2004, Texas Instruments announced the delivery of 5 million original DLP products, and in June 2005, the supply of DLP products exceeded 6 million. The development speed of DLP is amazing. According to relevant media reports, ZDC survey data shows that in the second quarter of 20 10, the proportion of projectors using DLP display technology exceeded 40%, reaching 43.3%. In addition, DLP technology also shows great potential in mini-projector and 3D projectors.

The patent of DLP technology belongs to Texas Instruments (TI), and now the core components such as DMD chip and DMD controller are exclusively provided by TI. With the rapid development of DLP technology and the increasing demand for components, not only Texas Instruments has gained fame and fortune, but all manufacturers in DLP camp have also made great progress. From now on, DLP projectors have occupied nearly 50% of the whole projector market. DLP projection has the advantages of high contrast and low production cost, which is very attractive to users who pay attention to cost performance. Nowadays, DLP projection is very strong in the projector market.

As a new projector product, DLP projector has three main characteristics from a technical point of view: high native contrast, miniaturization of the machine and closed optical path. It is not surprising that the DMD chip adopts mechanical working mode, the movement of the lens is more controllable and the native contrast is higher. DLP projector adopts reflective principle, which makes it easier to achieve high aperture ratio. The DLP optical path system of the product with the same configuration is smaller, and the machine can of course be smaller. In addition, DMD chip adopts semiconductor structure, so it is not easy to change the lens at high temperature, so DLP projector adopts closed optical path, which reduces the probability of dust entering. Compared with LCD projection technology, the biggest advantage of DLP projection lies in its high resolution and brightness, clearer images, purer black and white, richer gray levels, smaller size and lighter weight.

From the perspective of application market, its application has gradually developed to high-end models such as large projectors and digital cinemas, and ultra-miniature models below 2kg, and has developed towards polarization. Judging from the future development trend of projectors, the demand for high-performance products and lightweight products in the market is eager to continue to expand, and these two areas are precisely the advantages of DLP projection technology. Suitable for portable projector and digital cinema projector market, DLP technology has a lot of room to play, especially in the projection of large venues. Now DLP projectors are still outstanding, so DLP has become an important direction of projector development in the future, and its application fields and market prospects are quite promising.

After several years of development, the application field of DLP technology is gradually expanding, involving digital movies, large screen splicing display, front projection projectors and rear projection televisions. Nowadays, DLP technology is developing towards low cost and high image quality. In terms of cost reduction, on the one hand, we improve our own production and processing technology to improve the yield of DMD, on the other hand, we improve the DMD product series to meet the application needs of different levels of products. The technology of improving the image quality of DLP projector further improves the color and brightness.