The unique shape of the cylindrical LED display can attract more attention and improve the display effect ‌. When choosing a cylindrical LED display, you can consider it from the following aspects:

1. Application Scenarios and installation environment

Indoor or outdoor use:
Indoor scene: If it is an indoor environment such as shopping malls, hotel lobbies, conference rooms, etc., the brightness requirements for the display will be relatively low. General indoor full color screen brightness above 1000cd/m² can meet the needs. At the same time, we should consider the indoor light conditions, space size and other factors. For example, in a meeting room with low light and small space, a cylindrical LED display with low brightness and small pitch can provide a clear and comfortable visual effect; If it is in a complex indoor space such as the atrium of a large shopping mall, it is necessary to choose a display with a high contrast and color restoration degree, so that it can present a good display effect under different light conditions.

Outdoor scenario: If it is used outdoors, the display must have high brightness and protection performance. Usually, the brightness of the outdoor full-color screen should be above 4500cd/m² to ensure that it is still clearly visible in direct sunlight. And to have good waterproof, dustproof, moisture-proof, lightning protection and other protection capabilities to adapt to a variety of harsh outdoor environment.

Installation position and space: Determine the diameter, height and surrounding space layout of the cylinder. Select the appropriate display size and shape according to the cylinder size of the installation position to ensure that the display can be tightly fitted to the cylinder surface to achieve a good installation effect. If the cylinder diameter is small, the display screen with smaller point spacing and smaller module size should be selected for better bending and installation; If the cylinder is high, the resolution and viewing Angle of the display should be considered to ensure that a clear image can be obtained at different viewing positions at different heights.

2. Screen parameters
Point spacing: Point spacing directly affects the clarity and visual effect of the display. The smaller the dot spacing, the higher the pixel density, and the clearer and finer the image. The common cylindrical LED display point spacing is P2, P2.5, P3, P4, etc. (The number after P indicates the distance between two pixel points, in millimeters). If the viewing distance is close, such as the cylindrical display in the mall store, it is recommended to choose P2 or P2.5 with small point spacing; If the viewing distance is longer, such as on the outer columns of large venues, the point spacing of P3 or P4 may be sufficient to meet the needs.
Brightness: Brightness should be selected according to the light conditions of the environment and the viewing distance. If you use a strong ambient light, such as outdoor or well-lit indoor places, you need to choose a high-brightness display to ensure that the image is clearly visible; If the ambient light is dark, such as bars, KTV and other places, too high brightness may make people feel dazzling, at this time choose a medium brightness display can be.

Viewing Angle: Viewing Angle refers to the range of angles that can maintain a clear image when viewing the display from different directions. The larger viewing Angle allows more viewers to see good display effects in different positions. In general, the horizontal Angle of view of the cylindrical LED display should be no less than 140°, and the vertical Angle of view should be no less than 130°, so as to meet the viewing needs of most scenes.

Refresh rate and gray level: The higher the refresh rate, the better the stability and fluency of the image, which can reduce the flicker and residual shadow of the picture. The higher the gray level, the smoother the color transition of the image and the more delicate the display effect. For scenes that need to play dynamic video, animation and other content, a display with a higher refresh rate and gray level should be selected.

3. Display the effect
Color reproduction degree: Color reproduction degree refers to the proximity of the color displayed on the display screen to the actual color. The display with high color reproduction can present more realistic and vivid colors. When purchasing, you can judge whether the color restoration is good by observing the color pictures, videos and other content played by the display screen.

Flatness: The flatness of the display directly affects the display quality of the image. Good flatness display, the picture will not appear distortion, deformation and other phenomena. When purchasing, you can use the naked eye to observe or touch the surface of the display screen to check whether its flatness meets the requirements.

There are no mosaics, dead spots and color blocks: mosaics refer to the small image missing or abnormal on the display screen; Dead spot refers to a pixel on the display that is always not bright or always on; Color block refers to the obvious color difference between adjacent modules. These problems will affect the display effect of the display, in the purchase to carefully check to ensure that the display does not have these quality problems.

4. Hardware quality
Chip and lamp beads: The chip and lamp beads are the core components of the cylindrical LED display, which directly affects the performance and quality of the display. The high-quality chips and beads have the characteristics of high stability, high brightness and low power consumption. When purchasing, it is necessary to understand the brand, model, parameters and other information of the chip and lamp beads used in the display screen, and choose well-known brands and reliable quality products.

Power supply and control system: the stability and reliability of the power supply is directly related to the normal operation of the display screen, and the power supply with good quality and power adaptation should be selected. The control system is the "brain" of the display screen, which is responsible for controlling the display and transmission of the image, and it is necessary to choose a powerful, easy to operate and good stability control system. At the same time, ensure that the compatibility between the control system and the display screen is good.

Box and structural parts: The quality of box and structural parts determines the installation stability and protection performance of the display screen. The box should have good sealing, heat dissipation and corrosion resistance, and the structural parts should be durable and easy to install. For the outdoor display, the protection level of the box should reach more than IP65 to ensure that it can work normally in the harsh outdoor environment.

5. Brand and after-sales
Brand reputation: Choose well-known brands of cylindrical LED display, quality and after-sales service is more guaranteed. Well-known brands usually have richer research and development experience, more advanced production technology and more perfect quality control system, and can provide high-quality products and services.

After-sales service: Good after-sales service is an important guarantee to ensure the long-term stable operation of the display. In the purchase, to understand the brand's after-sales service policy, service network, response speed and other information. Ensure that the brand can provide timely technical support, repair service and spare parts supply.

In addition, the price of cylindrical LED display varies depending on the brand, materials, production methods and other factors. In general, the price of cylindrical LED display includes soft module price, screen structure price, auxiliary cost, integrated wiring cost, transportation cost and installation and debugging cost ‌.