LED screen Leyard specifications

Understanding GOB Technology for Gas Station Environments

GOB stands for Glue on Board, a manufacturing process that applies a transparent, high-viscosity adhesive over the surface of an SMD LED display. For gas station applications, this technology is transformative. The encapsulation layer protects the LEDs from moisture, dust, and vibration, all of which are common at fuel dispensing sites. Unlike standard outdoor LED screens, a GOB display achieves an IP65 or even IP66 rating on the front and back without needing a heavy additional enclosure. This is critical because gas stations require equipment that can withstand chemical fumes from fuel, temperature fluctuations from -20°C to +50°C, and high-pressure water cleaning. The GOB layer also enhances impact resistance, reducing the risk of LED damage from debris or accidental contact. When selecting a GOB display for a gas station, you should prioritize pixel pitches between P4 and P8. A P4 panel offers a resolution of 62,500 pixels per square meter, ideal for viewing distances of 4 to 10 meters, while a P8 panel provides 15,625 pixels per square meter for farther viewing. Brightness levels must exceed 7,000 nits to remain legible under direct sunlight, and a refresh rate of 3,840 Hz ensures flicker-free video playback for advertising content.

Site Assessment and Structural Considerations

Before installation, a thorough site survey is mandatory. You must evaluate the mounting surface, which is often a concrete canopy or a steel pole structure. The weight of a GOB display cabinet, typically 25 to 35 kg per square meter for a P6 panel, requires a load-bearing capacity of at least 50 kg per square meter to account for wind loads. Wind load calculations are especially important for gas station canopies, as the display acts as a sail. For a 2-meter by 3-meter screen, the wind load can exceed 1,200 Newtons in a 120 km/h gust. Use galvanized steel brackets with a minimum thickness of 5 mm and stainless steel bolts rated for outdoor use. The viewing distance determines the ideal pixel pitch: for a screen visible from the pump island (5 to 15 meters away), P5 or P6 is optimal. For a display facing a nearby road (20 to 30 meters), P8 or P10 suffices. You must also verify the power supply capacity. A typical P6 GOB display draws approximately 800 to 1,200 watts per square meter at maximum brightness. For a 6-square-meter screen, you need a dedicated 220V AC circuit rated at 10 amps, with a surge protector to handle voltage spikes from nearby fuel pumps. Ensure the installation height provides an unobstructed view for drivers and pedestrians, with the bottom of the display at least 3 meters above ground level to prevent glare from headlights.

Electrical and Data Wiring Specifications

Proper wiring is essential for safety and performance in a gas station environment. All power cables must be shielded and rated for outdoor use, with a minimum cross-section of 2.5 mm² for runs under 20 meters. The display system should operate on a stable 220V AC to 110V AC power supply, depending on regional standards, with a built-in voltage regulator to handle fluctuations of ±10%. Data transmission requires a CAT6 or fiber optic cable for distances over 100 meters, as gas station layouts often separate the control room from the display by 50 to 200 meters. Use a dedicated Ethernet switch with surge protection on both ends to prevent lightning-induced damage. The GOB display’s control system should support Wi-Fi or 4G remote management for updating pricing and promotions without running new cables. For power draw, calculate the total wattage: a 2-meter by 4-meter P6 display (8 square meters) at 1,000 watts per square meter consumes 8,000 watts at peak brightness. Use a 10 kW rated power distribution box with a residual-current circuit breaker (RCCB) set to 30 mA for personnel protection. Ground the display chassis to a dedicated earth rod with a resistance below 4 ohms, as required by electrical codes for fuel-handling areas. All connections must be housed in weatherproof junction boxes with IP65 rating, and cable entry points should be sealed with silicone to prevent fuel vapor ingress.

Mounting and Physical Installation Process

Begin installation by attaching the mounting frame to the structure using chemical anchors or expansion bolts. For a concrete canopy, drill holes to a depth of 60 mm and insert M12 bolts with a torque of 40 Nm. Level the frame using a laser level, ensuring a tolerance of ±2 mm over the entire width. The GOB display cabinets are typically modular, measuring 500 mm by 500 mm or 600 mm by 600 mm. Lift each cabinet using a hoist or crane with a minimum capacity of 200 kg for safety. Align the cabinets on the frame and secure them with locking brackets. The GOB coating requires careful handling to avoid scratches; use suction cups with rubber pads for positioning. Connect the power and data cables between cabinets using waterproof connectors rated for IP67. After all cabinets are mounted, perform a calibration of the brightness and color temperature. Set the white balance to 6,500K for natural color reproduction under daylight. The viewing angle of a GOB display is typically 160 degrees horizontally and 140 degrees vertically, so angle the screen slightly downward by 5 to 10 degrees to optimize visibility from the pump area. Finally, install a protective drip shield above the display to divert rainwater away from the cabinet vents. Test the screen at 100% brightness for 24 hours to confirm thermal stability, as the GOB layer can trap heat; ensure the internal fans maintain a cabinet temperature below 60°C.

Configuration and Content Management for Fuel Pricing

Once the hardware is installed, configure the display for gas station-specific content. The control software should support real-time updates for fuel prices, which often change multiple times daily. Use a pixel pitch of P6 or P5 for text legibility; at a viewing distance of 10 meters, a P6 display shows characters 10 cm tall clearly. Set the refresh rate to 3,840 Hz to eliminate flicker in video ads, which is critical for maintaining a professional appearance. For content resolution, a 2-meter by 3-meter P6 display has a native resolution of 320 by 480 pixels. Design templates with high-contrast colors, such as white text on a black background, to improve readability in bright sunlight. The brightness should be adjustable via an ambient light sensor, ranging from 500 nits at night to 7,500 nits during midday. Program the display to show fuel prices in a large font (at least 40% of screen height) with a secondary area for promotional videos or safety messages. Use a remote management system with encrypted communication to prevent unauthorized changes. The power draw for content playback at 50% brightness drops to 400 watts per square meter, reducing operating costs. Schedule automatic dimming during low-traffic hours, such as midnight to 5 AM, to save energy. Ensure the display’s control unit is housed in an IP65-rated enclosure near the pump station, with a backup battery for settings retention during power outages.

Maintenance, Safety Compliance, and Longevity

Regular maintenance extends the lifespan of a GOB LED display, which typically exceeds 100,000 hours of operation. Clean the surface monthly using a soft cloth and isopropyl alcohol to remove fuel residue and dust. The GOB coating is non-porous, so it resists staining from gasoline and diesel, but avoid abrasive tools. Inspect the seals and gaskets every quarter; replace them if cracks appear to maintain the IP65 rating. For safety compliance, the display must meet local fire codes for gas stations, including a UL or CE certification for electrical equipment in hazardous zones. The installation area is classified as a Class I, Division 2 location per the National Electrical Code, meaning flammable vapors may be present under abnormal conditions. Therefore, all electrical components must be explosion-proof or located at least 5 meters from the fuel dispensers. The display’s power draw should be monitored via the control software to detect anomalies; a sudden increase of 20% may indicate a failing power supply. Replace LED modules individually if dead pixels appear; the GOB layer allows for module-level repair without replacing the entire cabinet. Store spare modules in a climate-controlled room to prevent moisture absorption. With proper care, a GOB display maintains 90% of its original brightness after 50,000 hours, ensuring a return on investment over 7 to 10 years. Document all maintenance activities in a log for insurance and warranty purposes, and train gas station staff on basic troubleshooting, such as rebooting the control system via a remote interface.