7.5-Inch 4-Color E-Ink Display Module (SPI Interface)
The 7.5-inch 4-Color E-Ink Display Module is a large-format electronic paper solution designed for ultra-low power and high-visibility applications where color differentiation is important. Utilizing advanced electrophoretic display technology, this module provides a paper-like viewing experience with four-color rendering, sharp contrast, and excellent readability under both indoor lighting and direct sunlight.
Equipped with a SPI communication interface, the module allows reliable and efficient data transfer for embedded systems and IoT devices.
Product Overview
This 7.5-inch 4-color e-paper display provides a spacious screen area for presenting multi-color content such as text, pricing information, charts, labels, icons, and system data. Unlike traditional LCD or TFT screens, E-Ink technology reflects ambient light rather than emitting light, ensuring glare-free viewing and reduced eye strain.
The display consumes power only during refresh cycles. Once updated, the image remains visible without continuous power supply, making it ideal for battery-powered and energy-efficient systems.
Key Specifications
Display Size: 7.5 inch
Display Type: 4-Color Electrophoretic E-Paper (Black, White, Red, Yellow / model dependent)
Interface: SPI
Resolution: 800 × 480 pixels (typical)
Operating Voltage: 3.3V
Viewing Angle: Nearly 180°
Refresh Mode: Full Refresh & Partial Refresh
Power Consumption: Ultra-low (power required only during refresh)
Image Retention: Maintains content without power
Core Advantages
Multi-Color Display
Supports four distinct colors for clear visual hierarchy, enhanced readability, and attention-grabbing presentation.
Ultra-Low Power Consumption
Consumes energy only during refresh cycles, dramatically extending battery life compared to traditional display technologies.
Sunlight Readable
Reflective display ensures excellent visibility even under direct sunlight without the need for a backlight.
Wide Viewing Angle
Nearly 180° viewing angle allows consistent readability from multiple perspectives.
Eye-Friendly Design
No flicker and no blue light emission reduce eye strain for long-term viewing.
Reliable SPI Communication
Stable SPI interface ensures easy integration with common microcontrollers such as STM32, ESP32, Arduino, and Raspberry Pi.
Typical Applications
Multi-color Electronic Shelf Labels (ESL)
Retail price displays and promotions
Smart office dashboards and nameplates
Meeting room scheduling panels
Warehouse & logistics labeling
Industrial control interfaces
IoT monitoring terminals
Public information boards
The 7.5-inch 4-Color E-Ink Display Module with SPI interface is an ideal solution for applications requiring large display area, four-color visualization, ultra-low power consumption, and reliable outdoor readability.
Production Lead Time
35 days