Какие требования предъявляются к светодиодным экранам для стадионов?
LED displays in sports stadiums are key in showcasing live matches, game time, scores, and sponsor advertisements, which are typically situated both inside and outside the venue. They provide spectators with a stunning and unique visual experience, greatly enhancing their enjoyment of the event.
Given the numerous domestic and international sports events such as the NBA, the Olympic Games, and the UEFA European Championship, LED displays have become as synonymous with sports venues as the sports themselves.
Modern LED screen display systems have replaced traditional lighting and CRT displays, becoming an essential facility within contemporary sports venues. Let’s delve into the specific requirements for sports stadium LED displays.
1. High Safety and Stability for Stadium LED Screens: In public venues, safety is paramount. Sports events and large gatherings attract massive crowds, where any malfunction or error can have significant consequences. Therefore, stable engineering quality is an imperative requirement for users. For instance, using fiber optic transmission avoids signal attenuation, preventing any delay in live or broadcasted visuals. Protective measures, such as safety padding, can prevent accidents, and dual power supplies ensure the continuous operation of LED screens during a power outage.
2. Diverse Input Interfaces Required for Stadium LED Screens: Stadium displays must support various input types, including real-time broadcasting through cameras, television, and satellite programs. They should also be compatible with playing VCDs, DVDs, LDs, and various self-made video signals, supporting different video standards such as PAL and NTSC. The content can include a wide array of graphics, text, and video information from computers. Additionally, the displays should connect to referee systems and timing/scoring systems, displaying real-time game times and scores.
3. Good Flame Retardancy, Protection Level, and Heat Dissipation: For LED electronic displays, especially in outdoor sports events, consideration must be given to varying climatic conditions, such as humidity resistance in southern China, cold resistance in plateau areas, and heat dissipation needs in desert regions.
4. Wider Viewing Angle and Higher Refresh Rate for Stadium LED Screens: To ensure clarity in video displays, wider viewing angles and higher refresh rates are necessary. This is particularly important for presenting player information, scores, slow-motion replays, and close-up shots to ensure all spectators have a clear and accessible view.
5. Appropriate Pixel Pitch According to Viewing Distance: Choosing the right pixel pitch for LED screens is crucial, based on the viewing distance. For large outdoor stadiums, screens with a larger pixel pitch, such as P6 or P8, are common. In contrast, indoor venues, where spectators are typically closer to the display, require a smaller pixel pitch, with P4 or P5 being more suitable options.
How to select the correct pixel pitch based on viewing distance:
- Calculate the Viewing Distance: Determine the closest point from which the screen will be viewed by the spectators. This is the minimum viewing distance.
- Consider Content Complexity: If the content being displayed involves intricate details, such as live-action sports or close-up replays, tighter (smaller) pixel pitches are usually better as they offer higher resolution for finer details.
- Apply the 10x Rule for Outdoor Stadiums: A common rule of thumb for outdoor LED screens suggests that the pixel pitch in millimeters, when multiplied by 10, provides the distance in meters where the screen becomes ‘standard definition’ (SD). For example, a P10 screen would have an optimal SD viewing distance beginning at 100 meters.
- Choose Tighter Pixel Pitches for Indoor Stadiums: For indoor settings, the audience is usually closer to the screen, necessitating a tighter pixel pitch. Pixel pitches like P4 or P5 are common in these environments and offer a balance between image quality and cost.
- Opt for High-Resolution Screens for Close-Up Viewing: If the viewers are very close to the screen, such as in small indoor arenas, you may need to use a pixel pitch even tighter than P4 to ensure the image clarity is maintained for all viewers.
In summary, the selection of pixel pitch should be made with the close consultation of the screen’s manufacturer or provider, who can advise on the best option considering the specific layout and viewing needs of the sports stadium.