As the global electric vehicle (EV) market expands at an unprecedented rate, EV charging equipment (EVSE, Electric Vehicle Supply Equipment) has become a critical component of national infrastructures. This rapid growth has led to higher user expectations for the Human-Machine Interface (HMI) on charging equipment. Have you ever struggled to read the screen on a charging station under bright, direct sunlight? For these displays, crystal-clear visibility in all conditions, industrial-grade reliability, and cost-effectiveness are no longer optional—they are essential.

At FIRST Components, we support our customers with high-performance display technologies from trusted partners such as WINSTAR. Their monochrome PMOLED (Passive Matrix OLED) industrial display modules are the perfect solution to meet these demanding requirements.

Why is PMOLED the Ideal Choice for EV Charger/EVSE Displays?

1. Superior Outdoor Visibility: High Contrast Outperforms Traditional LCDs
Many assume that high brightness is the only factor for outdoor display performance. However, true readability comes from the perfect combination of brightness and contrast. WINSTAR PMOLED panels utilize self-emissive pixel technology, which allows for true black levels and achieves an ultra-high contrast ratio of 10,000:1. This sharp distinction between black and white ensures that information remains crisp and clear even under direct sunlight, preventing the “washed-out” effect common with traditional LCDs. This makes it the ideal outdoor display.

2. Ultra-Wide Viewing Angle for Effortless Readability
Unlike conventional LCD panels with their limited viewing angles, WINSTAR PMOLED modules feature a wide viewing angle of over 160°. This allows users to clearly read charging information from any perspective without needing to adjust their position, significantly enhancing the user experience.

3. Slim Profile for Simplified Mechanical Integration
Leveraging advanced Chip-On-Glass (COG) technology, WINSTAR PMOLED modules are incredibly thin, measuring only about 1.6 mm. The backlight-free design not only saves space but also allows for seamless integration into various charging guns and wall-mounted chargers, meeting the high standards of modern EV charger design for sleek, compact, and aesthetically pleasing products.

4. Industrial-Grade Wide Temperature Range for Reliable Performance in Extreme Environments
WINSTAR PMOLED display modules operate across a wide temperature range of -40°C to +80°C. From the freezing cold of the Arctic to the scorching heat of the desert, they ensure rapid startup and stable performance. This industrial-grade reliability guarantees uninterrupted, all-weather charging services.

PMOLED: A Universal Display Solution for All EVSE, from Indoors to Outdoors

Beyond indoor wallbox chargers and residential AC charging stations, the high contrast and wide temperature range of WINSTAR PMOLED make it perfectly suited for outdoor DC fast chargers. Its low power consumption, high reliability, and clear, easy-to-read display have made it the ideal HMI choice for all types of EVSE.

Featured Modules: How to Choose?

At FIRST Components, we offer a diverse portfolio of PMOLED modules supplied by WINSTAR to meet various EVSE design needs. Below are two models particularly suited to accelerate your product development cycle:

For Rich Graphics and Text: WINSTAR WEO25664*#A family (2.08-inch, 256x64)
Ideal for charging station interfaces that require richer graphics, animations, or multi-language support.

      •   High Resolution: 256×64 pixels.
      •   Versatile Interfaces: Supports I²C, SPI, 6800, and 8080.
      •   Industrial-Grade Wide Temperature: Operates from -40°C to +80°C.
      •   Ultra-Thin Design: Only 1.61 mm thick.
      •   Driver IC: Features the SSD1362, supporting 16-level grayscale and high brightness adjustment to simplify hardware circuit design.

For a Classic, All-Purpose Solution: WINSTAR WEO12864*#G family (2.42-inch, 128x64)
A popular and proven classic model, perfect for general-purpose charging equipment that needs to display critical status information clearly. Already adopted by key clients in the industry.

      •   Size & Resolution: 2.42-inch, 128×64, offering excellent readability in a compact space.
      •   Versatile Interfaces: Supports I²C, SPI, 6800, and 8080.
      •   Industrial-Grade Wide Temperature: Operates from -40°C to +80°C.
      •   Driver IC: Features the SSD1309.
      •   Flexible FPC Options: This series is available in two versions — WEO12864*#G (ZIF FPC) and WEO12864*#H (Hot Bar FPC) — for greater mechanical
           design flexibility.
      •   Optional Touch Functionality: An optional CTP touch panel can be added to create a highly interactive HMI for your charging device.

Why Choose WINSTAR for Your Display Technology?

WINSTAR is a world-leading supplier of industrial displays and a trusted partner of FIRST Components. With over 27 years of experience in display R&D and manufacturing, and with their own OLED panel plant ensuring stable OLED product supply and quality, WINSTAR PMOLED solutions have been recognized and adopted by numerous international power and energy solution brands.

Through our partnership, FIRST Components provides customers with reliable access to these high-performance products, along with dedicated support throughout the design cycle.

WINSTAR OLED Advantages:

      •   Stable Supply Chain & Longevity Commitment: WINSTAR guarantees long-term, stable supply throughout your product’s lifecycle—a critical factor for
          the industrial and automotive sectors.
      •   Expert Technical Support: FIRST Components provides local support, backed by WINSTAR’s comprehensive embedded system integration expertise,
          ensuring a seamless and rapid market launch.
      •   Customization Services: Together with WINSTAR, we can deliver tailored solutions based on your specific requirements.