What is the principle of led projector?

June 16, 2022

What is the principle of led projector? As we all know, the bulb of traditional projector is a very expensive item. The emergence of LED projection technology has opened up a new situation in the development of projectors. Compared with traditional projectors, the biggest advantage of LED projectors using LED light sources is that they do not need to replace the bulbs frequently, and their bulbs have a lifespan of 10,000-20,000 hours or even longer. So, what are the advantages and disadvantages of led projectors?
The digitization, networking, and multimedia interconnection of projection display technology have been realized. The core components of projection products include light source lighting systems, color separation and color processing systems, projection lenses, image signal processing circuits, and microdisplay devices. In terms of display effect, the current projection products can fully meet the needs of users.

Of course, users' expectations for products are never-ending. Users want to obtain more compact and portable projector products that can be easily carried around for application; and they hope that the products are more cost-effective, not only in terms of product price, bulbs, etc. The service life of components is also a very important part. After all, the current projection bulbs are expensive; in addition, as the "most core" display effect of projection products, of course, it needs to be guaranteed in the application. The above three main performance improvement requirements, although the new products have been greatly improved, but the "bottleneck" is becoming more and more obvious, because this is closely related to the design of the projection optical path system, to obtain better products, There must be newer and more practical technologies and product applications. The LED light source technology, which has been well developed and applied, can be said to be one of the most noteworthy new development directions of projection.

The application of LED light source, in terms of projector, the most important significance is to open up a new road for the miniaturization of the body. Because the LED light source is small in size and has many advantages in display technology, it is more suitable for the development of compact projectors or even originals, so that users' projections are more "portable" and "free."

Used for projection lighting, not only the lifespan is increased, but also the projector structure is changed. Since the heat dissipation requirement is reduced and the optical path system is shortened, the heat dissipation and noise have better performance.

At present, LED light sources are mainly used in two kinds of projection products: integrated small-scale projection elements and pocket-sized minicomputers. The integrated mini-projection elements are not made into independent models, but are mainly integrated with miniature display devices such as mobile phones, digital cameras, and notebook computers. Together, it is battery powered and can project images about the size of A4 or standard letter paper for easy sharing with others. Pocket-sized handheld projectors are complete independent models, small and light in size, can be easily picked up with one hand, easy to carry, and can be placed in a file bag. The future development direction is business applications. It can be used for both AC and DC, the projection screen can be larger than 17 inches, and the screen brightness is 15 to 200 lumens. With the development of technology, the display effect is still improving.

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Author:

Ms. TinaTang

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