Lightweight electronic screen panel designed for lowpower microcontroller projects Key benefits Extremely low power consumption: the display draws power only during screen refresh, minimizing energy use between updates. Retains content during power loss: the last screen image remains visible for an extended period without power, removing the need for continuous power to preserve information. No backlighting required: readable in normal ambient light, eliminating backlight power draw and simplifying installation. Easy to integrate: compatible with 3.30V and 5V microcontroller interfaces for straightforward connection to common controllers. Lightweight and compact: low mass and thin profile help when weight and size are constraints in portable or mounted devices. Functions and performance Static and semistatic display applications where information must remain visible without continuous power. Fast, energyefficient refresh cycles that limit power use to moments when content changes. Consistent visibility without electricity means reliable display of critical information even during outages. Compatibility Works with 3.30V and 5V microcontroller interfaces, making it suitable for a wide range of development boards and embedded controllers. Practical applications Retail electronic shelf labels and tags that need long battery life and retain pricing information during battery swaps or power interruptions. Batterypowered IoT sensors and remote meters that display readings intermittently while conserving energy between updates. Portable signage, handheld devices, and status panels where lightweight design and persistent display are required. What makes it stand out Power only when needed: by consuming energy only during refresh, the panel extends battery life and reduces energy requirements. Persistent display without power: the ability to maintain the last image during power failure improves reliability and user experience in offgrid and intermittentpower environments. Broad microcontroller compatibility: direct support for 3.30V and 5V interfaces simplifies prototyping and integration into existing systems. Specifications summary Interface compatibility: 3.30V and 5V microcontroller interfaces Power behavior: consumes power only during refresh; retains display content without power Illumination: no backlight required Form factor: lightweight electronic screen panel This display is suitable for applications that prioritize energy efficiency, persistent visibility, and easy integration with standard microcontroller voltages.