Analysis of the impact of small-pitch LED display on the theater

As we all know, most of the playback devices currently used in the cinema field are projection technology, including film projectors for large and medium-sized cinemas, and engineering-grade and even commercial-grade projectors for small cinemas. Our discussion will also begin with a comparison of small pitch LEDs and projection technology.

Since the projection system adopts the principle of reflection imaging, the distance between the projected light reaching the center of the screen and the surrounding area is definitely different, and the positions of the three primary color light sources in the projection tube are different. This kind of characteristic causes the projection picture to be prone to a small amount of pixel defocus. And color trim. In addition, the movie screen uses a white screen, which reduces the contrast of the picture.

The LED display adopts the principle of self-illumination, and each pixel is independently illuminated, and the position-based imaging difference can be neglected. And the LED display can use the all-black background color, which also makes the image black better and the image contrast better.

Traditional film projectors can only be viewed in a dark environment, and it is necessary to create exclusive shadow rooms with better shading conditions, which also imposes application limitations for film screening. High brightness is one of the most prominent features of LED displays. Coupled with its self-illuminating properties, LED displays can be imaged in brighter indoor lighting environments. In this way, the theater using the LED screen can be used in a dark or bright environment, which reduces the hard demand for the cinema environment, and thus expands the construction scope of the cinema.

Finally, let's explore the possibilities of the cinema management level. Projection equipment requires light source support, and the light source has a life limit. In order to ensure the viewing effect, it is usually necessary to periodically replace the light source, such as a light bulb. Despite the introduction of efficient laser sources in recent years, its 20,000-hour life span is still far behind the life of the LED display of 50,000-100,000 hours. Although the LED display has a higher investment in the previous period, it can save a lot of light source replacement costs.

In addition, in order to meet the use of projection equipment, large and medium-sized theaters have built-in independent screening rooms, which not only take up valuable space, but also add a certain expenditure. The LED display is self-illuminating, eliminating the need for a separate screening room, which effectively saves operating space and screening room construction costs.

However, the LED display is not perfect. First of all, compared with the projection of the same size as the projection theater, the cost of the LED screen is still high, and the initial investment is large. Secondly, although the pixel pitch of the LED display has made considerable progress, the fineness of the image quality still falls short of the "film" level. Moreover, as a new thing, it is not an overnight success for LED screens to get recognition of the entire film production and broadcast market.

At present, under the premise that the cost, technology, market recognition and other factors have not been solved, the small-pitch LED screen is still far away to replace the projection system. However, with the characteristics of brightness, flexibility, etc., the application of LED screens in small projection halls, entertainment centers, clubs and other commercial projection fields is worthy of further discussion.