購入する前にチェックするものと使用後の維持方法
“My newly installed outdoor LED screen went black after just one rain shower. It’s been repaired multiple times but keeps malfunctioning.” “As soon as the rainy season hits, our indoor meeting screen flickers constantly. The technician said it’s moisture damage.”
Many users have encountered frustrating issues like these. In humid climates, inadequate waterproofing and moisture protection for both outdoor advertising screens and indoor displays can compromise quality, shorten lifespan, and even pose safety hazards.
This guide will help you tackle LED display waterproofing and moisture resistance from two key angles: “What to look for before buying” そして “How to maintain after use.”
P3.9 outdoor rental display modules ready for shipment in the workshop
I. Before You Buy: Check “Hard Waterproofing Metrics”
Don’t wait for the rain to regret your purchase. Verify these waterproofing and moisture-proofing features to avoid problems at the source.
Replace the defective modules.LED display manufacturers typically provide customers with spare modules for quick replacement when minor issues arise.
1. 屋外LED画面: Focus on “Protection Rating + Sealing Details”
Exposed to the elements year-round, outdoor screens depend on their IP protection rating そして critical sealing. If these are lacking, a low price isn’t worth the risk.
- Minimum IP65 Rating: The first number, “6,” indicates complete dustproofing, while the second, “5,” means resistance to powerful water jets, such as heavy rain. For coastal areas or cities with frequent downpours, opt for IP66 (which withstands heavy wave impact) to guard against corrosion from salt spray and rain.
- Weather-Resistant Cabinet Material: Prioritize aluminum alloy or powder-coated steel cabinets. Aluminum alloy is lightweight and rust-resistant, while powder-coated steel has a corrosion-resistant coating that can withstand sun and rain. Avoid plain steel cabinets, which may rust and leak within six months.
- Sealed Interfaces: Power connectors should have dedicated IP66 waterproof enclosures. Cable entry points require a dual seal with waterproof glands + sealing putty to prevent rainwater infiltration.
2. Indoor LED Displays: Don’t Overlook “Moisture Protection Details”
While indoor screens aren’t exposed to rain, high humidity can still cause moisture buildup and short circuits. Pay attention to these two points when purchasing:
- “Triple-Proof” PCB: Ask the vendor if the PCB (printed circuit board) has been coated with triple-proof paint (moisture-proof, salt spray-proof, and mold-proof). This protective layer reduces moisture damage to the circuits, making it especially suitable for humid regions.
- Adequate Ventilation: Check if the back of the screen has ventilation holes or if you can leave a 5-10 cm installation gap. This allows for crucial airflow to reduce moisture buildup. Avoid mounting the screen flush against the wall, as this traps moisture.
II. After You Use: Implement “Waterproofing and Moisture Protection”
Making the right purchase is just the first step; daily maintenance is crucial. Different environments require distinct protection techniques to extend the screen’s lifespan.
1. 屋外LED画面: Focus on “Leak Prevention + Drainage”
- Regularly Inspect Seals: Check silicone sealant strips at the frame and module joints monthly. Immediately replace any that are aged, cracked, or detached. After heavy rain, check for water accumulation at the bottom of the cabinet. If present, it indicates clogged drainage holes—clear them promptly.
- Clear Drainage and Eaves: Regularly clean debris from the drainage holes (typically 5-8 mm in diameter) at the bottom of the screen. Also, ensure the top rain eaves have a tilt angle of at least 15° to divert rainwater away.
- “Dehumidify” After Rain: If moisture is detected inside the screen (e.g., foggy marks), operate the screen for 2-3 hours to disperse moisture using the heat from the LEDs.
2. 屋内LED画面: Implement “Humidity Control + Moisture Prevention”
- Use Equipment Dehumidification: During humid periods, run your air conditioner’s dehumidification function for 2-3 hours daily to maintain indoor humidity between 40%-60%. If an air conditioner isn’t available, place silica gel desiccant packets around the screen.
- Regularly Dust: Gently brush dust from the screen surface with a soft-bristled brush weekly. Never use a damp cloth, as water may seep in. Accumulated dust traps moisture, which can cause short circuits over time.
- “Power-On Dehumidification” is Crucial: Even if a screen is infrequently used, operate it for at least 2 hours daily. The heat from the LEDs helps dry internal moisture. If the screen has been unused for over 5 days, start at 30% brightness and increase by 10% every 10 minutes to gradually warm it up.
III. Emergency Response: If Water/Moisture Exposure Occurs
Stay calm and follow these steps to minimize damage.
- Outdoor Screen Water Damage: Power off, then drain. Immediately disconnect the power to prevent short circuits. Open the rear panel, drain any accumulated water, wipe it dry with a clean cloth, and place several desiccant bags inside. Let it sit for 24 hours before testing. If the screen shows bright lines or is black, do not power it on again; contact a technician immediately.
- Indoor Screen Moisture Exposure: Dehumidify, then power on. If flickering or bright lines appear, run an air conditioner to dehumidify for 4-6 時間. Then, power it on using the low-brightness warm-up method. If the issue persists, contact the vendor for repair. Do not disassemble the screen yourself.
結論
Waterproofing and moisture protection for LED displays aren’t difficult. The key lies in selecting the right configuration before purchase そして performing regular maintenance afterward. For outdoor displays, never compromise on protection ratings to save costs. For indoor displays, don’t assume “no rain exposure means no issues”; humid weather poses hidden risks that demand equal attention. Master these points, and your LED display will operate reliably through any season.
