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

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.
Enhanced Security & Access Control
Dormitory/lecture hall access.
Library book checkouts.
Cashless payments at canteens/stores.
Integrate NFC/RFID for:
Sustainability & Cost Savings
Eliminates plastic waste from yearly ID reprints.
Ultra-low power consumption: Months of use per charge (no daily charging).
Improved Convenience
Multi-purpose use: Combines ID, schedule tracker, and digital wallet in one device.
Sunlight-readable screen—no glare outdoors.
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 temperature | 0 - 40℃ |
| Storage temperature | -25 - 70℃ |