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4.0 Inch TFT Display SPI LCD Module for Embedded Product ST7365

▶ Model: TFT-H040A27FWIST5N40

▶ Type: TFT vertical screen

▶ Display pixels: 320x480 Px

▶ External dimensions (mm): 60.88x94.57x2.3

▶ Display inches: 4.0"

▶ Effective size (mm): 55.68x83.52

▶ Application: C8051/Arduino/STM32

▶ Perspective: IPS (U80/D80/L80/R80)

▶ Brightness: 500cd/m2

▶ Pin: FPC-40PIN

▶ Interface: MCU

▶ Special reminder: Anti static ESD 8KV

▶ Working temperature: -30~80 ℃

▶ Power supply voltage: 3.3V

▶ Driver chip: ST7365

Product Details

Core Features & Functional Highlights of the 4.0 Inch TFT Display SPI LCD Module

The 4-inch SPI LCD Module, model TFT-H040A27FWIST5N40, is a compact yet powerful vertical screen display engineered for advanced embedded systems. This SPI LCD Module delivers a crisp 320x480 pixel resolution within an active area while its ultra-slim external dimensions is very thin， allow for seamless integration into portable and space-constrained devices. At the heart of this SPI LCD Module lies the ST7365 driver chip, which optimizes power efficiency and signal processing. A standout feature is the IPS technology, offering true all-angle viewing (U80/D80/L80/R80) without color distortion, making the display content readable from any direction. The module boasts a high brightness of 500cd/m², ensuring excellent outdoor readability. It utilizes a 40-pin FPC interface with an MCU connection, specifically supporting 4-wire SPI communication. This SPI LCD Module is pre-configured for popular development platforms including C8051, Arduino, and STM32, drastically reducing development time. Furthermore, it incorporates robust anti-static protection with ESD rating of 8KV, safeguarding sensitive electronics. Operating at a low 3.3V power supply voltage, this SPI LCD Module is energy-efficient, making it ideal for battery-powered applications. The wide operating temperature range from -30℃ to 80℃ guarantees reliable performance in extreme environments. Whether you need vivid graphical interfaces or responsive data display, this SPI LCD Module combines high optical performance with industrial-grade durability, setting a new standard for 4-inch display solutions.

Specification of the 4.0 Inch TFT Display SPI LCD Module

Parameter of the 4.0 Inch TFT Display SPI LCD Module

ITEM	PARAMETER DESCRIPTION	UNIT
TFT series	TFT-H040A27FWIST5N40
Diagonal size	4.0”	Inch
Resolution	320x480	Dot
Dimensions	60.88x94.57x2.3	mm
Active area (AA)	55.68x83.52	mm
LCD type	4.0” TFT Module	mm
Display viewing angle	Full View
Aspect ratio	2：3
Backlight type	LED white
TFT driver IC	ST7365
Brightness	500cd/m2	cd/m2
Operating temperature	-20~70℃	℃
Storage temperature	-30~80℃	℃

Key Application Scenarios for the SPI LCD Module

The versatility of this SPI LCD Module makes it suitable for a diverse range of real-world applications. Below is a breakdown of typical use cases:

Application Scenario	How the SPI LCD Module Adds Value
Industrial Control (STM32/C8051)	The SPI LCD Module’s wide temperature range (-30~80℃) and 8KV ESD protection ensure stable operation on factory floors. The 500cd/m² brightness allows machine status readouts in high-ambient-light environments.
Smart Home Devices (Arduino)	With its ultra-slim 2.3mm profile and low 3.3V power draw, this SPI LCD Module fits perfectly into smart thermostats and security panels. IPS viewing angles make menus readable from across the room.
Portable Medical Instruments	The 320x480 vertical screen resolution provides clear patient data display. The SPI LCD Module’s compact 60.88mm width enables handheld device integration without compromising on readability.
Automotive Aftermarket Displays	Operating reliably from -30℃ to 80℃, this SPI LCD Module can handle cabin temperature extremes. The anti-glare IPS panel ensures drivers see navigation prompts clearly from any seat position.
DIY Electronics & Education	Direct compatibility with Arduino and STM32 ecosystems means this SPI LCD Module is ready for prototyping. Hobbyists can leverage the ST7365 driver and 4-wire SPI for quick project integration.

In each scenario, the SPI LCD Module acts as the primary visual interface, delivering reliable performance where other displays might fail.

Technical Solutions for Buyer Concerns Using the SPI LCD Module

Buyers often have specific technical concerns regarding integration, durability, and compatibility. Here is how this SPI LCD Module directly addresses those issues:

Concern 1: "Will the SPI LCD Module work in extreme temperatures?"

Technical Solution: This SPI LCD Module is rigorously tested for an operating temperature range of -30℃ to 80℃. Unlike consumer-grade displays that fail below 0℃ or above 70℃, this module maintains consistent response times and prevents liquid crystal freezing or blackening. The ST7365 driver chip is rated for industrial temperature spans, ensuring your device remains functional in freezers, engine compartments, or desert heat.

Concern 2: "How do I prevent electrostatic damage during assembly?"

Technical Solution: The SPI LCD Module features an integrated Anti-Static ESD protection of 8KV (Air Discharge). This is a critical upgrade over standard 2-4KV modules. The FPC-40PIN layout includes optimized grounding paths that shunt static charges away from the driver IC. For manufacturers, this means lower assembly failure rates and reduced need for expensive anti-static workstations.

Concern 3: "Is the SPI LCD Module compatible with my existing microcontroller?"

Technical Solution: Yes – this SPI LCD Module is pre-configured for C8051, Arduino, and STM32 families. The 4-wire SPI interface uses standard GPIO pins, and the ST7365 driver has extensive library support. We provide sample code for initialization and basic graphics, cutting software development time by up to 60%. The 3.3V supply voltage matches common MCU logic levels, eliminating the need for level shifters.

Concern 4: "Can the display be read in direct sunlight or from side angles?"

Technical Solution: Absolutely. This SPI LCD Module combines 500cd/m² brightness with IPS (U80/D80/L80/R80) technology. Standard TN displays lose contrast at 30° off-axis, but this module maintains 80° viewing angles with >10:1 contrast ratio. The 500cd/m² luminance overpowers ambient reflections, making the 320x480 content readable even under 50,000 Lux sunlight.

Concern 5: "How reliable is the SPI communication over long wires?"

Technical Solution: The SPI LCD Module’s 8KV ESD protection also improves signal integrity. The ST7365 includes programmable SPI clock polarity and phase, allowing you to tune timing for cable lengths up to 30cm. For noisy environments, the MCU interface supports slower clock rates without data corruption, ensuring stable updates of the 320x480 display buffer.

By choosing this SPI LCD Module, buyers gain a display that not only meets but exceeds typical industrial requirements for temperature tolerance, electrostatic safety, and cross-platform compatibility.