Description
JicTech 4.0 Inch E Paper Display Module — JS0400NW08-TNG-A0
The JS0400NW08-TNG-A0 from Shenzhen JicTech is a high-resolution, low-power
4.0 inch active-matrix e paper (EPD) module engineered for demanding battery-powered applications.
With a 480 × 800 pixel panel (~235 DPI), tri-color support and bi-stable electrophoretic
technology, this module delivers paper-like readability in ambient light while consuming power only
during updates.
Key Features
- 480 × 800 pixel resolution (3.97″ / ~235 DPI) for crisp text and detailed graphics
- Bi-stable reflective EPD — retains image without power between updates
- High reflectance and contrast for excellent readability in ambient light
- Tri-color capability (Black/White/Red) for richer information presentation
- On-chip gate/source drivers, oscillator, DC-DC booster, SRAM and LUT for simplified integration
- Selectable 3-wire / 4-wire SPI and I²C temperature sensor interface (BS1 selectable)
- Built-in temperature sensor and OTP waveform storage for robust field operation
- Ultra-low deep-sleep current for multi-year battery operation in low-update scenarios
- Compact outline (56.24 × 96.62 × 0.81 mm) and thin profile for space-constrained designs
Optimal Application Scenarios
Premium Retail Systems
High-end electronic shelf labels with detailed product information and promotional content
Industrial Control Interfaces
Equipment dashboards, process control displays, and diagnostic panels
Medical Imaging Devices
Portable diagnostic equipment requiring high-resolution display of medical data
Transportation Information
Passenger information systems, timetable displays, and navigation panels
Smart Home Controllers
Centralized home automation interfaces with status visualization
Mechanical Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Model | JS0400NW08-TNG-A0 | — |
| Screen Size (diagonal) | 3.97 / 4.0 | inch |
| Resolution | 480 × 800 | pixels |
| Active Area | 51.84 × 86.40 | mm |
| Pixel Pitch | 0.108 × 0.108 | mm |
| Outline Dimensions (H × V × D) | 56.24 × 96.62 × 0.81 | mm |
| Pixel Configuration | Rectangle | — |
| Typical Weight | TBD | g |
Electrical & Interface Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Logic Supply Voltage | VCI / VDDIO | 2.2 | 3.0 | 3.7 | V |
| Core Logic Voltage | VDD | 1.7 | 1.8 | 1.9 | V |
| High-level input threshold | VIH | 0.8 × VCI | — | — | V |
| Low-level input threshold | VIL | — | — | 0.2 × VCI | V |
| Typical operating current (update) | Iopr_VCI | — | TBD | — | mA |
| Deep sleep / standby current | Islp_VCI / Idslp_VCI | — | TBD | — | µA |
| Supported Interfaces | — | 4-wire SPI / 3-wire SPI (9-bit), I²C (temperature) | — | ||
Optical Characteristics
| Parameter | Typical / Notes | Unit |
|---|---|---|
| White Reflectance | ≈30–35 | % |
| Contrast Ratio (CR) | ≈8:1 (indoor) | — |
| Viewing Angle | Ultra-wide (near 180°) | degrees |
| Image Update Time | TBD (controller & waveform dependent) | sec |
Pinout & Functional Notes
Standard 24-pin FPC interface including: CS#, D/C#, RES#, BUSY, SCL, SDA (SPI), BS1 (bus select),
VCI / VDDIO, VDD, VCOM and multiple capacitor pins for internal DC-DC. BS1 = L selects 4-wire SPI (8-bit); BS1 = H selects 3-wire SPI (9-bit).
BUSY must be monitored during waveform execution; avoid issuing commands while BUSY is active.
Rigorous Reliability Validation
Certified for industrial deployment through comprehensive environmental testing:
| Test | Condition | Duration | Compliance |
|---|---|---|---|
| Temperature Cycling | -25°C ↔ +70°C | 50 cycles | IEC 60068-2-14 |
| High-Temperature Storage | 70°C, 40% RH | 240 hrs | Industrial Standard |
| High-Humidity Operation | 40°C, 80% RH | 240 hrs | IEC 60068-2-30 |
| UV Resistance | 765W/m² @ 40°C | 168 hrs | MIL-STD-810G |
| ESD Protection | Air: ±15kV, Contact: ±8kV | Multiple | IEC 61000-4-2 |
| Long-Term Storage | -25°C to +70°C | 240 hrs | JEDEC Standard |
Note: After environmental stress tests, modules should be allowed to stabilize at room conditions before functional verification.
Typical Operating Sequence (Summary)
- Power on VCI / VDDIO (wait ~10 ms).
- Hardware reset + software reset (0x12), wait BUSY low.
- Load waveform LUT (from OTP or MCU), set panel border and RAM size.
- Write image data to RAM, trigger display update (0x22 / 0x20), wait BUSY low.
- Deep sleep (0x10) before power off to minimize stand-by consumption.
Handling & Mounting Recommendations
- Keep the module flat — avoid bending and mechanical stress on the active area and FPC.
- Protect the front surface with a transparent hard-coat cover to prevent scratches.
- Do not expose to corrosive gases or strong solvents; clean gently with a soft, dry cloth.
- Observe ESD precautions (ESD workstation, gloves) during assembly and test.
- When storing multi-color EPDs, keep the display face up and white; refresh periodically (recommended every 3 months).
Quality Assurance
- Rigorous pixel-level inspection with automated optical testing
- 100% electrical validation before shipment
- ESD-protected manufacturing environment (IEC 61000-4-2)
- Conformal coating option available for harsh environments
- RoHS 3 compliant components with moisture-controlled packaging
- 12-month warranty with technical support
Downloads & Resources
- SPI Interface Guide: Download Documentation
- Initialization Sequence: Reference Code
Ordering, Customization & Support
For pricing, lead times, custom FPCs, temperature range variants or volume orders, contact JicTech Sales:
- Email: [email protected]
- Company: Shenzhen JicTech LCD Co., Ltd.
Warranty and delivery terms are provided per purchase order; typical warranty coverage is confirmed at time of order.
Specifications are subject to change for product improvement — please consult the latest datasheet before final design-in.
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