1. Assess the size of the exhibition: Large exhibitions usually require larger LED displays to accommodate more visitors and ensure that images and information are clearly visible to all participants.

2. Determine the type of exhibition: For indoor exhibitions, you can choose a high-density LED screen with moderate brightness, large viewing angle, and close color mixing distance, which is suitable for close viewing; while for outdoor exhibitions, you need high brightness, high protection level, waterproof and anti- UV capable LED screen to suit long distance viewing and outdoor environments.

3. Calculate screen size: Calculate the required screen size based on the expected audience distance and the space where the screen will be placed. Using parameters such as cell board size and dot pitch (such as P10 or P16) can help determine the size and resolution of the entire screen.

4. Adapt resolution: Ensure that the resolution of content (such as pictures, videos, etc.) matches the actual resolution of the LED screen to avoid image quality degradation caused by stretching or compression.

5. Consider viewing distance: Longer viewing distances may require lower density LED screens (such as P20 or P30), while shorter viewing distances may require higher density screens (such as P4, P5 or higher). Provides clearer images.

6. Budget considerations: The rental or purchase cost of LED displays is also an important consideration. Large and high-resolution screens usually cost more, so the choice needs to be made within your budget.

7. Interaction requirements: If LED screens need to be used for interactive sessions in the exhibition, the touch function and interactive capabilities of the screen also need to be taken into consideration.

8. On-site conditions: Factors such as on-site lighting conditions, installation location and angle will also affect the selection of LED display.

9. Content display: The type of content displayed (such as text, images, videos, etc.) will also affect the resolution requirements.

10. Technical compatibility: Ensure that the technical parameters of the LED display (such as input interfaces, control systems, etc.) are compatible with other equipment at the exhibition site.

To sum up, when choosing an LED display screen, multiple factors need to be considered, including exhibition size, type, environment, viewing distance, content requirements, and budget constraints, to ensure that the final selected display screen can meet the specific needs of the exhibition and serve the audience Provide the best visual experience.