Description

4.2-inch E-paper Display Module Wide Temperature -25℃~50℃

Name: 4.2" Wide Temperature E-ink displays -25℃~50℃ Electronic Paper 400x300 Resolution Intelligent Paper
Brand: GOOD DISPLAY
SKU: GDEM042T31WT
Price: 15.98 USD
Availability: InStock

With crisp 400×300 resolution and a blazing-fast 3-second refresh, this ultra-efficient e-ink display holds images indefinitely without power. Perfect for wearables, smart tags, and industrial devices, it’s the smart choice for sleek, low-power tech!

Friendly Reminder:The wide-temperature display is designed for extreme environments, but content suitability should be carefully considered. For specific solutions, please contact customer support.

Operates in extreme temperatures

- Working temperature: -4°F to 122°F
- Storage temperature: -13°F to 158°F

Paper-Like, Eye-Friendly Display

- Sunlight Readable,Wide Viewing Angle: Nearly 170° with no glare.
- No Eye Strain: No blue light.

Low Power & Eco-Friendly

- Bistable Display: Nearly zero in static mode.
- Energy Efficient: Over 90% less power than LCDs.

Wide-Temperature E-Paper Display

Designed for Extreme Environments

This product utilizes wide-temperature e-paper technology, ensuring stable operation between -25°C to 50°C. However, due to e-paper characteristics, high-density dynamic graphics (such as scatter plots and line charts) may not appear as clear as on standard e-paper displays.

Recommended Applications

Recommended Applications: Best suited for static text, simple icons, data tables, barcodes, and other high-contrast, low-refresh-rate content.

Why Scatter Plots May Not Perform Well

E-ink displays rely on microcapsule charge flipping to render content. Due to low refresh rates and limited grayscale levels, high-density scatter plots may appear grainy, especially at 30-50°C.

To enhance visibility, consider simplifying the graphics or emphasizing key data points.

Disclaimer: Due to the nature of e-ink technology, complex graphics may have display limitations. Please ensure it meets your specific usage needs before purchasing. For technical support or customized solutions, contact customer service.

Technical Details

Product Specifications

PART NUMBER	GDEM042T31WT	CONNECTOR	24 Pin 0.5mm
TYPE	Dot Matrix	MAX GRAYSCALE	4
SIZE	4.2 inch	COLOR	Black,White
IC	UC8276	FULL REFRESH TIME(s)	3
RESOLUTION	400x300	OPERATING TEMP.	-25℃~50℃
PPI	183.66	STORAGE TEMP.	-25℃~70℃
OUTLINE SIZE(mm)	91x77x1.2	TYPICAL POWER(MW)	18.6
ACTIVE SIZE(mm)	84.8x63.6	DEEP SLEEP POWER(MW)	0.003
PIXEL PITCH(mm)	0.212x0.212	INTERFACE	SPI

Matching Driver Boards

Ⅰ. DESPI-C02 (EPD adapter Board)

Ⅱ. DESPI-L(C02) (STM32 Demo Kit)

Ⅲ. ESP8266-L(C02) (ESP8266 Demo Kit)

Ⅳ. ESP8266-L(C02) (ESP8266 Demo Kit)

Ⅴ. DEArduino UNO R4-L(C02) (Arduino Demo Kit)

Ⅵ. ESP32E6-E01 (24Pin SPI ePaper Display Demo Kit)

Files And Download
	● GDEM042T31WT-Specification	● GDEM042T31WT Arduino Sample Code
	● IC Driver UC8276	● GDEM042T31WT ESP8266 Sample Code
	● GDEM042T31WT STM32 Sample Code	● Why can't I download the files(updated)?
	● GDEM042T31WT ESP32 Sample Code	● The Lastest Catalog

Product Application

Smart Thermostats	Electronic Shelf Labels (ESL)	Electronic Timetables	Smart Business Cards

We Also Recommend

1.54-inch E-paper Display Module Wide Temperature -25℃~50℃ ,Resolution 200x200, GDEM0154D67WT	4.2 inch e-ink display high rate refresh 400x300 SPI, GDEY042T81	4.2 inch tri-color e-ink epd display supporting monochrome partial update, GDEY042Z98	4.2-inch Black, White, Yellow, and Red E Ink Display 400x300, GDEY042F52

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].