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3.7inch E-ink ID Badge
Size1.54-inch, 2.13-inch, 2.9-inch, 3.7-inch, 4.2-inch, 7.5-inch or customized
Dimensions111.6mm*63.3mm*8.6mm
Window size81.54mm*47.04mm
TypeE-ink screen, black / white / red
Working frequency13.56MHz

3.7inch E-ink ID Badge – Factory Direct Since 2011

Professional identification on a large, sunlight-readable display. Our 3.7inch E-ink ID Badge features a spacious electronic paper screen (480 x 280 pixel resolution) – displaying employee photos, names, job titles, department logos, and QR codes with exceptional clarity. The e-ink screen retains content indefinitely without power consumption.

Perfect for corporate offices, hospitals, educational institutions, conferences, and events. Available with or without NFC/BLE connectivity for digital integration.

As a professional factory established in 2011, we offer OEM / ODM services including custom badge layouts, logo placement, and smart chip integration.

A patented advanced lamination process to package different types of PCBA with components such as module or fingerprint sensor, or battery under perfectly contolled temperature or pressure into banking card size or any shape or design.


Core Technologies:
• Find My Tags 
• Ultra-Thin NFC Cards 
• Solar-Powered E-Ink Labels 
• Fingerprint-Embedded PCBA

Key Advantages in Educational Settings:

  1. Real-Time Information Updates

    • Display class schedules, exam timetables, or room changes instantly via wireless updates (Wi-Fi).

    • Emergency alerts (e.g., campus closures) pushed directly to the badge.

  2. Enhanced Security & Access Control

    • Dormitory/lecture hall access.

    • Library book checkouts.

    • Cashless payments at canteens/stores.

    • Integrate NFC/RFID for:

  3. Sustainability & Cost Savings

    • Eliminates plastic waste from yearly ID reprints.

    • Ultra-low power consumption: Months of use per charge (no daily charging).

  4. Improved Convenience

    • Multi-purpose use: Combines ID, schedule tracker, and digital wallet in one device.

    • Sunlight-readable screen—no glare outdoors.

  5. Customization & Branding

    • Schools can display logos, event promotions, or achievement badges (e.g., "Honor Roll").

    • Support for QR codes (attendance scanning, lab equipment sign-outs).

Size

 

1.54-inch, 2.13-inch, 2.9-inch, 3.7-inch, 4.2-inch, 7.5-inch or customized

Dimensions

111.6mm*63.3mm*8.6mm

Window size

81.54mm*47.04mm

Weight

79g

Type

E-ink screen, black / white / red

Size

3.7 inches

Resolution

416(V) x 240(H)  Dpi:130

Refresh time

5s (excluding data transmission time, single screen refresh)

Number of refreshes

More than 1 million times

Working frequency

13.56MHz

Supporting agreement

ISO14443 type A

Operating temperature0 - 40℃
Storage temperature

-25 - 70℃


FAQ
What is a 3.7inch E-ink ID Badge?
The 3.7-inch E-ink ID Badge is a smart digital employee badge that uses electronic ink (E-ink) display technology to show dynamic identity information such as employee name, ID, department, QR code, or status.
How does a 3.7inch E-ink ID Badge work?
The badge connects to a backend management system via NFC or Bluetooth Low Energy (BLE). Information can be updated wirelessly and displayed instantly on the E-ink screen, ensuring real-time accuracy without printing new cards.
What is a 3.7inch E-ink ID Badge used for?
The E-ink ID Badge is commonly used for:

Employee identification
Smart office access control
Visitor management
Logistics and warehouse staff identification
Healthcare staff ID management
Event staff accreditation
Security and compliance tracking
What are the advantages of an E-ink ID Badge?
Key benefits include:

Real-time information updates
No need for reprinting badges
Ultra-low power consumption
High visibility display
Secure digital identity management
Integration with enterprise systems
What technologies are supported?
The badge can integrate with:

NFC (Near Field Communication)
BLE (Bluetooth Low Energy)
Cloud-based ID management systems
Access control systems
Workforce management platforms
Can the badge replace traditional employee ID cards?
Yes. The E-ink ID Badge is designed to replace traditional printed employee ID cards by enabling dynamic updates of employee information without reissuing physical badges.
What industries use E-ink ID Badges?
It is widely used in:

Corporate offices
Warehouses and logistics centers
Manufacturing factories
Hospitals and healthcare facilities
Government institutions
Smart campuses
What is the production lead time?
Production lead time typically ranges from 15–30 days depending on hardware configuration, firmware customization, and order volume.
Why choose Union Smart as your smart badge manufacturer?
With over 15 years of manufacturing experience, Union Smart provides RFID, NFC, and IoT smart identification solutions, including smart cards, wristbands, and E-ink display badges. Our factory is certified to ISO 9001 and ISO 14001 standards and supports FSC-certified materials for sustainable production. We offer OEM/ODM customization, hardware integration, and global delivery support.
Email:sale@usocard.com
Address:Room 1801, Block A, Delux Silicon Valley, No.8 Juhe Road, Zhukeng Community, Longtian Street, Pingshan, Shenzhen, Guangdong, China