**YUEQING, CHINA** - Yueqing Bolong LCD Technology Co., Ltd. (Bolong LCD), a leading developer and manufacturer of professional industrial display modules and embedded LCD solutions, announced a significant milestone in its clean energy and smart infrastructure division: the successful supply and deployment of custom **Chip-on-Board (COB) LCD Modules** for **more than 6,000 electric vehicle (EV) charging posts and commercial energy storage inverters worldwide**.
Meeting the Demands of Outdoor Energy Infrastructure
EV charging stations and outdoor solar energy storage inverters present extreme environmental challenges for human-machine interface (HMI) displays. Installed in direct outdoor sunlight, roadside open terminals, and harsh industrial yards, these displays must withstand intense solar UV radiation, winter freezing conditions, heavy rain and humidity, and high-voltage electrical switching noise without failing or suffering contrast degradation.
"Power infrastructure equipment cannot afford screen lockups, illegible graphics, or temperature-induced display sluggishness," stated the Lead Systems Engineer at Bolong LCD. "Our high-durability COB modules were purpose-engineered from the substrate level up to ensure clear readability and rock-solid communication in high-voltage, high-current environments."
Core Engineering Advantages of Bolong's Energy Display Solution
The custom COB modules deployed in these global energy projects feature critical hardware innovations designed for 24/7 continuous operation:
**1. Ultra-Wide Operating Temperature Range (-20°C to +70°C)**:
Utilizing specialized wide-temperature liquid crystal fluid and temperature-compensated driving circuitry, the display maintains rapid liquid crystal response times and sharp optical contrast from sub-zero winter mornings to high-heat midsummer afternoons.
**2. High-Luminance Sunlight-Readable Backlighting**:
Engineered with high-efficiency edge-lit and bottom-lit LED backlight arrays paired with transflective or high-contrast STN/FSTN polarizer films. Delivers excellent visual legibility in direct outdoor sunlight while consuming minimal operating power.
**3. Robust Electrical Isolation & Surge Immunity**:
Custom PCB layouts incorporate dedicated transient voltage suppression (TVS) diodes, filtered I/O lines, and enhanced ground shielding to protect internal controller ICs from high-frequency inverter switching transients and electrostatic discharge (ESD).
Performance Benchmark Verification in Energy Deployments
Field telemetry and factory testing data confirm the durability advantage of Bolong's industrial COB architecture over conventional consumer displays:
|
Operational Parameter |
Standard Consumer LCD Module |
Bolong Industrial Energy COB Module |
|
Operating Temp. Envelope |
0°C to 50°C (Slows below 5°C) |
-20°C to +70°C (Stable response verified) |
|
Backlight Half-Life (MTBF) |
20,000 to 30,000 Hours |
≥ 50,000 Hours continuous 24/7 operation |
|
Electrical Noise (EMC) Immunity |
Prone to reset on power surge |
Multi-stage TVS & ground-plane shielded (Pass) |
End-to-End Embedded Customization for Global OEMs
Bolong LCD's embedded engineering division provides comprehensive customization: from designing custom PCB outline dimensions to fit existing terminal enclosures, to programming multi-language character fonts (English, European, Cyrillic, Asian), implementing custom communication protocols (8-bit Parallel, I2C, SPI), and supplying integrated capacitive/resistive touch panels. Backed by ISO9001-certified cleanrooms and automated SMT assembly, Bolong ensures zero-defect batch delivery.
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