4.2-inch E-Paper Display – High Contrast E Ink Module
The 4.2″ E-Paper display from JicTech features high-contrast E Ink technology with ultra-low power consumption and excellent readability in bright sunlight. With flexible interfaces and compact design, it’s ideal for signage, retail shelf tags, and IoT display applications.

JicTech 4.2-inch 3-Color E-Paper Display Module (Model: JS0420MN11-TNG-A0)
Overview
The JS0420MN11-TNG-A0 is a 4.2-inch active matrix electrophoretic display (AMEPD) module that supports Black, White, and Red colors in a bi-stable, reflective format. With ultra-low power consumption, an integrated interface controller, and robust environmental performance, it is an ideal choice for electronic shelf labels, digital signage, and battery-powered information displays.
Key Features
4.2-inch 3-Color E-Paper: Black, White, and Red display with high reflectance (35% typical)
Ultra Low Power: Only consumes power during updates; deep sleep current ≤ 3µA
Bi-stable Display: Image remains without power
Multiple SPI Interfaces: Selectable 3-wire or 4-wire SPI via BS1 pin
Integrated Controller: On-chip RAM, DC-DC, temperature sensor, and OTP for waveforms
Wide Viewing Angle: Near 180° readability
Hard Coat Anti-Glare Surface: Enhanced outdoor visibility
Compact & Lightweight: 91.0mm × 77.0mm × 1.12mm, 15.5g
RoHS Compliant
Technical Specifications
Display Area: 84.8mm × 63.6mm
Resolution: 400 × 300 pixels (120 DPI)
Pixel Pitch: 0.212mm × 0.212mm
Colors: Black, White, Red (1-bit per color)
Contrast Ratio: 15:1 (minimum)
Reflectance (White): 35% typical
Supply Voltage (VCI): 2.3V to 3.7V (3.0V typical)
Interface: SPI (3-wire or 4-wire)
Operating Temperature: 0°C to 40°C
Storage Temperature: 0°C to 40°C
Update Time: Dependent on waveform & temperature
Lifetime: 5 years under specified conditions
Applications
Electronic Shelf Labels (ESL) and retail pricing systems
Industrial and warehouse labeling
Portable medical devices and patient wristbands
Smart office signage and meeting room displays
IoT sensors and battery-operated indicators
Sustainable packaging and smart labels
Customization & Support
JicTech offers tailored solutions for small to medium batches, including:
Custom waveform development for optimized update speed & contrast
Interface adaptation (SPI mode selection, pin mapping)
Temperature sensor integration (internal/external)
Mechanical modifications (FPC length, connector type, mounting holes)
OTP programming for module identification & calibration
Environmental hardening for extended temperature or humidity ranges
Reliability & Testing
The module undergoes rigorous environmental and reliability tests, including:
High/low temperature operation & storage
Temperature cycling (-25°C to 60°C)
High humidity testing (90% RH)
ESD protection (HBM ±4kV air, ±2kV contact)
Vibration and drop impact (packaged)
Why Choose JicTech?
With expertise in reflective display technology, JicTech delivers reliable, energy-efficient E-Paper modules backed by responsive engineering support. We collaborate closely with customers to provide customized display solutions that meet specific power, interface, and environmental requirements.
Download this product’s technical documentation and specifications.
Click here to download:PULL-SPEC-JS0420MN11-A0_V0.1
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