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4.2 E Ink Display SPI ESL Smart Card

Custom E Ink Display
January 05, 2026
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Brief: In this dynamic demo, discover how the 4.2-inch E Ink display transforms smart retail and industrial applications. Watch as we showcase its high-contrast readability, demonstrate the low-power SPI interface integration, and explore its performance in electronic shelf labels and smart card systems.
Related Product Features:
  • High-contrast black and white E Ink display with 400×300 resolution for clear visibility.
  • Low power consumption technology ensures extended battery life in smart applications.
  • SPI interface enables straightforward integration with various control systems.
  • 24-pin FPC connection provides reliable and secure electrical connectivity.
  • Multiple refresh modes including full and fast for optimal display performance.
  • Wide operating temperature range from 0°C to 50°C for diverse environments.
  • Lightweight design at approximately 15.5g for easy installation in compact spaces.
  • Versatile applications across smart retail, healthcare, industrial, and home systems.
FAQs:
  • What are the primary applications for this 4.2-inch E Ink display?
    This display is ideal for electronic shelf labels (ESL), smart card systems, smart retail solutions, healthcare applications, industrial displays, and smart home systems due to its high visibility and low power consumption.
  • What interface does this E Ink display use for connectivity?
    The display features an SPI interface with 24-pin FPC connection, providing easy integration and reliable communication with host controllers in various electronic systems.
  • How does the power consumption affect battery life in practical applications?
    The E Ink technology consumes power only during screen updates, making it extremely energy-efficient. This allows for extended battery life, often lasting years in typical ESL and smart card applications between charges or battery replacements.
  • What is the display's resolution and viewing area specification?
    The display offers 400×300 resolution with 119 DPI clarity and a viewable area of 84.8mm × 63.6mm, providing sharp text and image representation for information display applications.
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