4.2-Inch Black & White E-Paper Display Module

The 4.2-Inch Black & White E-Paper Display Module is a high-performance electronic paper display designed for low-power embedded systems, IoT devices, and industrial applications. Featuring a 400 × 300 pixel resolution, it delivers sharp text and clear graphics with a paper-like viewing experience.

Using advanced Electronic Paper Display (EPD) technology, the module consumes power only during screen refresh. Once the image is updated, it remains visible even when power is removed, making it an ideal choice for battery-powered devices requiring long operating life.

The display features a standard SPI interface for easy integration with Arduino, ESP32 , STM32, Raspberry Pi, and other SPI-compatible microcontrollers. It supports both full and partial refresh, allowing efficient updates while maintaining ultra-low power consumption.

With no backlight, the display provides excellent readability under ambient light and direct sunlight. Its wide viewing angle, high contrast, and stable performance make it suitable for both indoor and outdoor applications.

Features

• 4.2-inch black & white e-paper display
• 400 × 300 pixel high resolution
• Ultra-low power consumption
• Paper-like viewing experience
• No backlight required
• High contrast and wide viewing angle
• Image retention without continuous power
• Standard SPI communication interface
• Supports full and partial refresh
• Compact design with stable and reliable performance
• Long service life
• Easy integration with embedded systems

Applications

• Electronic Shelf Labels (ESL)
• Smart name badges and ID cards
• Industrial control equipment
• Medical instruments
• Smart home devices
• IoT terminals
• Warehouse and logistics labels
• Asset management systems
• E-book readers
• Portable information display devices
• Environmental monitoring equipment
• Smart metering and utility displays

Specifications

• Display Size: 4.2 inches
• Resolution: 400 × 300 pixels
• Display Color: Black & White
• Display Technology: Electronic Paper Display (EPD)
• Interface: SPI
• Viewing Angle: Nearly 180°
• Operating Voltage: 3.3V
• Refresh Mode: Full Refresh / Partial Refresh
• Display Type: Reflective, No Backlight
• Power Consumption: Power required only during screen refresh

The 4.2-Inch Black & White E-Paper Display Module combines high resolution, ultra-low power consumption, and excellent readability in a compact design. With its 400 × 300 pixel display, SPI interface, and paper-like viewing experience, it is an ideal display solution for electronic shelf labels, industrial equipment, smart home products, medical devices, and a wide range of embedded and IoT applications.