The WAA0420BB5#A2N1AA-FC is a 4.2 inch E-paper display module designed for low-power applications such as Electronic Shelf Label (ESL) systems. Featuring a built-in front-light panel, this 4.2" E-paper display offers excellent readability under various lighting conditions while maintaining ultra-low power consumption.

This 4.2 inch E-paper Module supports 1-bit black and white image rendering with a resolution of 400x300 pixels across its active display area. Built on a TFT-array driven electrophoretic technology, the module integrates key components such as a gate driver, source driver, timing controller, oscillator, and more—streamlining system integration and reducing external circuitry requirements.

Key Features:

• 400x300 pixel resolution
• High contrast and high reflectance for crisp visibility
• Ultra-wide viewing angle
• Pure reflective, bi-stable display with ultra-low power consumption
• Supports both landscape and portrait orientations
• Commercial temperature range compatibility
• Hard-coat, anti-glare display surface
• Deep sleep mode with ultra-low current draw
• On-chip display RAM and built-in waveform storage (OTP or MCU controlled)
• SPI interface and on-chip oscillator for simplified communication
• Integrated booster, regulator, and VCOM generation circuits
• I²C master interface for external temperature sensor reading
• Supports partial update mode
• Built-in temperature sensor for enhanced performance across environments

With its integrated features and flexible interface, this 4.2 inch E paper display module is ideal for modern, battery-powered applications where readability, energy efficiency, and space-saving integration are essential.