4.2" Ultra-Low Power e-Paper Display Module 400x300 e-Ink Screen 0.3s Fast Partial Refresh
USD $17.60

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USD $17.60
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EPD EPD with adapter board EPD with STM32 Demo Kit EPD with ESP32 Demo Kit
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156 available
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Description

4.2" Monochrome E-Ink Display

Tired of sluggish e-paper? GooDisplay's 4.2 snaps to life with 0.3s partial refreshes – fastest than basic e-ink. Perfect for dynamic labels, menus, or sensors that can’t wait.

 

Core Advantages

Lightning-Fast Refresh

 
Full Refresh
3.0s
Fast Refresh
1.5s
Partial Refresh
0.3s
faster than conventional e-paper
Real-time content updates for dynamic applications
Supports rapid content switching

Superior Visual Clarity

 
120 DPI
Resolution
170°
Viewing Angle


Readability
Anti-glare hard coating surface
Paper-like reading experience
Zero backlight - eye comfort
Clear visibility from any angle

Zero-Power Operation

 
Active: 12.6W
 
Static: 0.003W
 

99% less power than LCD
Bistable display technology
5-10 year life
Zero power when displaying static content



 

Technical Specifications

Part Number GDEM042T31
Type Dot Matrix
Connector 24 Pin 0.5mm
Size 4.2"
IC UC8276
Max Grayscale 4
Resolution 400x300
Color Black, White
Operating Temp. 0℃~50℃
DPI 120
Interface SPI
Storage Temp. -25℃~70℃
Outline Size 91x77x1.2mm
Full Refresh Time 3s
Typical Power(mW) 12.6
Active Size 84.8x63.6mm
Fast Refresh Time 1.5
Deep Sleep Power(mW) 0.003
Pixel Pitch 0.212x0.212mm
Partial Refresh Time 0.3

 
 

Drawing Details

Matching Driver Boards










 

DESPI-C02

Pure interface adapter (no MCU) for connecting external boards to 24-pin SPI EPDs.
 

View Details

DESPI-L(C02)

Top-tier industrial processing power (Cortex-M), featuring USB data transmission.
 

View Details

ESP32-L(C02)

Supports common WiFi/BT/USB data transmission.

 

View Details

ESP32E6-E01

Dedicated 50-pin port for E6 displays + standard 24-pin port.Top-tier ESP32-S3 performance with WiFi/BT/USB.
 

View Details

Typical Applications

Office

Digital Notepads

Meets daily office needs like meeting notes and document editing. Fast refresh makes writing and erasing as smooth as on paper, while also loading and displaying documents quickly.

Smart Home

Calendar Clocks

Displays calendar, time, weather, etc., with fast refresh for real-time data updates (e.g., hourly time sync or instant weather changes).

Education

Teaching Aids

Teachers can use devices with this e-ink display to present teaching materials, write blackboard notes, etc. Fast refresh ensures smooth writing/erasing and quick display of images or charts.

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.

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

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