What is most critical to the clarity of a projector?

The most critical aspect of projector clarity is resolution. First of all, resolution is one of the important indicators of the quality of the images projected by the left and right projectors. All clarity is based on the correct resolution settings. If the resolution settings are incorrect, you will not get a clear projector image. .

Contrast can enhance the picture. Next, we are going to talk about the concept of contrast. The so-called contrast ratio refers to the brightness ratio between the brightest picture and the darkest picture projected by the projector, that is, the ratio of the brightness of the projector when projecting an all-white screen and projecting a completely black screen. It can show the projector's transition from black screen to dark screen. Gradient levels of white screen.

The higher the contrast of the projector, the stronger the brightness contrast from black to white in the projected image, the richer the grayscale gradient levels, and the richer the color expression. And if the ratio is smaller, the dynamic range of brightness of the display system is narrower, that is, the white is not bright enough, the black is not deep enough, the grayscale of the picture is concentrated in a smaller range, and the detail performance is worse.

The brightness of the projector is also one of the factors that affects the clarity of the projected image. Brightness is one of the most important performance indicators of the projector. It determines whether the image projected by the projector can be viewed in the current environment. Display clearly.

The impact of brightness on the projection screen, especially the impact on clarity, needs to be combined with the user's actual application environment. Only by using products with corresponding brightness in the correct situation can a clear projection screen be obtained. There is no correlation between the use environment and brightness. The combination often causes the brightness to seriously affect the projected image.

Extended information:

Classification according to application environment:

1. Home theater type: Its characteristic is that the brightness is around 2000 lumens (with the development of projection This number is constantly increasing, and the contrast ratio is higher). The aspect ratio of the projected picture is mostly 16:9. It has a variety of video ports, suitable for playing movies and high-definition TV, and is suitable for home users.

2. Portable business projector: The advantages of business portable projector are small size, light weight, and strong mobility. It is a substitute for traditional slide projectors and large and medium-sized projectors, and is a thin and light notebook computer. Paired with a business portable projector, it is the first choice for mobile business users when conducting mobile business presentations.

3. Educational conference projectors: generally positioned for school and enterprise applications, using mainstream resolutions, brightness around 2000-3000 lumens, moderate weight, good heat dissipation and dustproof, suitable It is easy to install and move over short distances, has rich functional interfaces, is easy to maintain, and has a relatively high performance-price ratio, making it suitable for mass purchase and popular use.

4. Mainstream engineering projectors: Compared with mainstream ordinary projectors, engineering projectors have a larger projection area, farther distance, high brightness, and generally support multi-bulb mode. , can better cope with large-scale and changeable installation environments, and is very suitable for fields such as education, media and government.

5. Professional theater projector:

This type of projector pays more attention to stability, emphasizing low failure rate, its heat dissipation performance, network functions, ease of use, etc. Very strong. Due to its large size and heavy weight, it is usually used for special purposes, such as theaters, museums, town halls, and public areas. It can also be used in environments such as traffic monitoring, public security command centers, firefighting and air traffic control centers.

6. Measuring projector:

This type of projector is different from the above types of projectors. In the early days, it was called contour projector. With the popularity of grating rulers, projectors are all installed. High-precision grating rulers are also called measurement projectors.

Reference source:

Baidu Encyclopedia-Photography