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Ultra-Low Power 42-Inch E Ink Display for Airports & Exhibitions Ideal Billboard Solution

DMPH420EC1
The DMPH420EC1 is a 42-inch high-resolution 2160 x 2880 monochrome E Ink display designed for indoor and outdoor digital signage applications. This product boasts eco-friendliness, ultra-low power consumption, and a paper-like visual experience.
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  • Description
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42" Monochrome E Ink Sign

Our 42-inch E Ink display brings you a stunning paper-like look, indoors or in bright sun. It’s ultra-low power—so you can place it anywhere, no outlet needed!

Just update your content over WiFi or USB, and enjoy a crystal-clear, eye-friendly screen that looks nothing like traditional LCD. Perfect for malls, airports, and modern workspaces. Go green, go glam, go glare-free!



Core Advantages

Radical Power Efficiency

  • Ultra-Low Power Draw: Consumes only 6.1W during operation and <0.01W on standby
  • Business Benefit: Ideal for solar-powered, off-grid deployments and supports ESG goals

Bistable Display Technology

  • Always-On Visibility: Retains the last image perfectly even without power
  • Business Benefit: Guarantees 100% uptime for your communications without energy waste

Deployment Flexibility

  • Wireless Freedom: Built-in battery and supports Wi-Fi, USB, and 4G/LTE
  • Business Benefit: Install anywhere and update content remotely


 

Technical Specifications

Display Parameters

Part Number DMPH420EC1
Screen Size 42 inch
Screen Type Black and white E Ink screen
Screen Resolution 2880x2160
Grayscale 16 levels of grayscale

Port Specification

USB2.0 One HOST, one OTG
HDMI-OUT 1 (for internal debugging)
RJ45 1 (10M/100M adaptive)
TF Reserved (maximum expansion of 128GB) 
Keys POWER, UP, DOWN, RESET

Power Specification

Power Supply: 5V Type-C interface
Refresh Power ≤6.1W
Standby Power ≤0.01W
Built-in Battery Lithium battery

Software Specification

Image Update Time 2s
Image Update Method USB or WiFi
Language Synchronizes with mobile phone language
Weight Approximately 11.5kg
Dimensions 896.2x682x35.5mm

Mainboard Specification

Operating Temperature 0~50°C
Storage Temperature   -25~60°C
Relative humidity 30%~90% 
Altitude 0 ~ 3000 m

Temp & Humidity Specification

Power Supply Built-in lithium battery,Capacity: 50.4W/H, 16.8V/3500MAH
Mains power Type-c interface (supports PD protocol)
Mains power Type-c interface (supports PD protocol)

Structure Diagram Details





















 
  • 1 USB 2.0 Port (Type-A): For inserting a USB flash drive to upload/update display content. FAT32 format recommended.
  • 2 USB 2.0 OTG Port: Used for mainboard debugging and firmware upgrades. OTG function can be toggled via long-press of [DOWN] key.
  • 3 Ethernet Port (RJ45): 10/100 Mbps LAN port for wired network connectivity.
  • 4 microSD (TF) Card Slot: Supports inserting a microSD card for additional storage (up to 128 GB).
  • 5 SIM Card Slot: For an optional 4G/LTE module. Insert an IoT (cellular) SIM card here if cellular data is required.
  • 6 HDMI Output: Connect an external monitor to output the Android mainboard's display content.
  • 7 Wi-Fi/4G Antenna Connector: SMA-style connector for the included antenna (used for Wi-Fi and 4G signals).
  • 8 USB-C (PD) Power Input: Used to connect the external 12–20 V DC power supply (USB-C PD adapter, optional).

Android WiFi Control App

WiFi Control App

Wireless Management Made Simple

Our intuitive Android app allows you to configure and control your E-Ink displays seamlessly via WiFi connection. Update content, manage multiple devices, and monitor status from anywhere.
 

Download Control App

Note: WiFi functionality requires USB cable power supply. For optimal performance, ensure your device is connected to a stable power source during updates.

Sustainable Technology

Paperless Future

Each display saves ≈3,000 sheets annually. Join 15,000+ businesses reducing paper waste with ePaper solutions.

Sustainable Packaging

95% recycled materials with FSC-certified packaging. 100% plastic-free protective materials.

Energy Leadership

90% less energy than LCDs. Annual CO₂ reduction equivalent to 50 mature trees.

Why GooDisplay E-Paper Refreshes Faster

 

Optimized Fast-Refresh FPL

We rigorously select fast-refresh FPL films at the raw material level, laying a solid hardware foundation for high-speed performance.

 

Smart Temp-Controlled Drive

 Our engineers optimize waveform files for different temperature ranges, ensuring excellent display quality even during rapid refresh cycles.

 
 
 

Chip-Level Integrated Solution

Optimized waveforms are built into the display driver chip—activate fast refresh mode with a simple code call!

Display Type Refresh Capability Available Sizes
Black & White (B/W) Displays Supports fast refresh, partial refresh, and 4-level grayscale 0.97" to 10.3"
Black, White & Red (BWR) Displays Supports fast refresh and partial B/W refresh 2.13" to 11.6"
Black, White, Red & Yellow (BWRY) Displays Supports fast refresh with multi-color layered updating 0.97" to 11.6"



 

About Us


Thank you for your interest in our product. We could provide front light, touch screen, and other accessories for you. For more information, please refer to the relevant manual available in our Library or visit our official website at www.good-display.com.
If you need any further assistance or have any other questions, please feel free to contact us. We sincerely invite you to send your inquiries to our email at buyepaper@good-display.com.

Certifications

ISO 14001 Environmental Management
RoHS Compliant | Energy Star Certified

Contact Our Engineers

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