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FN0399D001A
FANNAL
3.99
39.18*94.03
-20~70
-30~80
400x960
ALL
SPI/RGB
350
Customizable
| Quantity: | |
|---|---|
The 3.99-inch TFT LCD display module is designed for compact embedded systems requiring a high-resolution narrow-format display. With a 400×960 resolution and RGB stripe arrangement, the module delivers sharp image quality and smooth visual performance for industrial and smart device applications.
Featuring an IPS full viewing angle panel and Normally Black transmissive display mode, this TFT module provides stable color performance and improved contrast from multiple viewing directions. The SPI/RGB 18-bit interface offers flexible integration with embedded control platforms and industrial motherboards.
Its slim structure and lightweight design make it suitable for handheld equipment, smart control panels, portable terminals, and space-constrained HMI devices. The display also supports operation in wide temperature environments from -20°C to +70°C.
The 3.99-inch elongated design is ideal for embedded systems with limited installation space.
400×960 resolution provides clear text rendering and detailed graphical interfaces.
ALL viewing direction ensures consistent image quality from different angles.
Supports SPI and RGB 18-bit communication for easier integration with embedded hardware platforms.
Normally Black mode improves visual depth and contrast performance.
Operates reliably from -20°C to +70°C for industrial and outdoor equipment applications.
Touch panel integration, cover glass, optical bonding, and brightness customization are available.
General Specifications：
LCD size(inch): | 3.99 (Diagonal) |
Resolution: | 400(H)×960(V) |
Pixel Pitch: | 0.09795(H)x0.09795(V) |
Active Area(mm): | 39.18(H)×94.032(V) |
Module Size(mm): | 42.9(W)x102.08(H)×2.15(D) |
Display Mode(mm): | Normally Black, Transmissive |
Interface: | SPI/RGB 18bit |
Pixel arrangement: | RGB-Stripe |
View Direction: | ALL |
Power Supply(V): | 2.8 |
Power Consumption(W): | 0.7(Typ.) |
Weight(g): | 20(Typ.) |
Luminance(cd/m2): | 350(Typ.) |
Operating Temperature(°C): | -20~+70 |
Storage Temperature(°C): | -30~+80 |
Interface:
Pin No. | Symbol | I/O | Description |
1 | LEDA | P | Power supply for LED anode input. |
2 | LEDK1 | P | Powe supply for LED cathode input. |
3 | LEDK2 | P | Powe supply for LED cathode input. |
4 | GND | P | Ground. |
5 | VDD | P | Supply analog voltage. |
6 | RESET | I | Reset signal input. |
7-8 | NC | - | NO connection. |
9 | SDA | I | Serial data input signal |
10 | SCL | I | Pixel clock input signal. |
11 | CS | I | Chip selection signal |
12 | DCLK | I | RGB dot clock signal. |
13 | DE | I | Data enable signal input. |
14 | VSYNC | I | Vertical synchronizing signal input. |
15 | HSYNC | I | Horizontal synchronizing signal input. |
16-33 | D80-DB17 | I | RGB data signal: DB0:Blue LSB--DB5:Blue MSB; DB6:Green LSB--DB11:Green MSB; DB12:Red LSB--DB17:Red MSB. |
34 | GND | P | Ground. |
35 | TP_INT | I | Touch Interrupt, No Connection. |
36 | TP_SDA | I | Touch IIC Data signal, No Connection. |
37 | TP_SCL | I | Touch IIC Clock signal, No Connection. |
38 | TP_RESET | I | Touch Reset Signal, No Connection. |
39 | TP_VCL | P | Touch Power supply, No Connection. |
40 | GND | P | Power Ground. |
Electrical Characteristics:
Parameter | Symbol: | Min. | Typ. | Max. | Unit |
Forward Current Voltage | VF | 22.4 | 24.8 | 27.2 | V |
Forward Current | If | - | 20 | - | mA |
Backlight Power Consumption | Wbl | - | 0.496 | - | W |
LED Lifetime | - | 30000 | - | - | Hrs |
Industrial handheld terminals
Smart home control panels
Portable medical devices
Access control systems
Embedded HMI interfaces
Smart retail equipment
IoT control devices
Energy management systems
Portable testing instruments
Transportation control terminals
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To meet diverse integration needs, we offer extensive customisation for you, including:
• Size range: 1.77" to 15.6"
• Trusted panel partners: BOE, INNOLUX, JDI, Hannstar, CTC, TCL, and TIANMA.
• Panel types: IPS / TN / LTPS
• Operation Temperature: Industrial (-20 ~ 70°C), Automotive (-30 ~ 85°C)
• Tailored shape, length, and PIN definitions for full compatibility.
• EMI shielding and circuit optimisation.
• Supports multiple conversions: SPI, MCU, RGB, MIPI, LVDS, EDP
• Module material options: metal/plastic/metal–plastic integration
• High brightness up to 30,000 cd/m², ideal for outdoor or industrial use.
• Long lifetime up to 50,000 hours.
• Options: RGB / VGA / HDMI / LVDS / DVI / Type-C
• Fully compatible with custom TFT and LCD modules.
• Optimised design for stable image transmission and performance.
• Available Sizes: Up to 65"
• Structure Options: G+G, G+F+F, designed for industrial and automotive applications
• Touch Functions: Supports multi-touch, waterproof, glove touch, passive pen, gesture & palm rejection
• Operating Temperature:
Industrial Grade: –20°C ~ +70°C
Automotive Grade: –30°C ~ +85°
• Touch tuning and firmware optimization provided by FANNAL (in-house FW design)
• Trusted IC partners: EETI, ILITEK, GOODiX, FocalTech, Cypress, Microchip(FANNAL's Design Partner)
• High Reliability: Excellent anti-interference and long-term stability
• EMC Design: Full electromagnetic compatibility engineering to meet EMI/RFI and industrial standards
• Material Options:
Glass: 0.55mm–10.0mm
PMMA: 0.5mm–3.0mm
PC: 0.1mm–1.0mm
• Custom Design: CNC, Hot bending, 3D & 2.5D cover glass, ceramic printing, and PMMA integration
• Surface Treatments:
3A: AG / AR / AF
Anti-Microbial / Anti-Explosion
Optical Bonding | Size Range | Notes |
OCA | Up to 15.6” | Two fully automated production lines for high-volume manufacturing |
LOCA / OCR | Up to 32” | Excellent for high contrast and durability |
Silicone | Up to 32” | Ideal for rugged, large-size industrial applications |
