1. Check the screen's flatness: To ensure the displayed image is not distorted, the surface flatness of the fast-retractable LED folding screen must be within ±1mm. If this requirement is not met, and there are uneven areas, it will cause blind spots in the viewing angle when playing videos. Therefore, flatness is a major factor in judging the quality of a fast-retractable LED folding screen.
2. Check the screen's brightness: Under normal circumstances, the brightness of a fast-retractable LED folding screen should reach at least 1500 cd/m² to ensure normal display operation. Otherwise, insufficient brightness may make it difficult to see the displayed image content. Therefore, if you want to buy a fast-retractable LED folding screen with good display quality, you must check the quality of its LED chips and their brightness parameters.
3. Check the screen's white balance: A screen will only display pure white when the ratio of the three primary colors (red, green, and blue) is 1:4.6:0.16. Therefore, if a manufacturer's fast-folding LED screen deviates even slightly in the ratio of the three primary colors, it will cause a white balance deviation, thus affecting the display quality. Therefore, checking the white balance of a fast-folding LED screen is a crucial aspect when choosing one.
In summary, we can see that the quality judgment criteria for fast-folding LED screens mainly focus on three aspects: screen flatness, brightness, and white balance. If all these aspects meet the quality standards, then the fast-folding LED screen you choose is undoubtedly a qualified product.
