4.0″ High Brightness TFT LCD Module – 480×480 Square RGB+SPI – Sunlight Readable
4.0-inch high brightness square TFT LCD display module featuring 480×480 resolution, 1:1 aspect ratio, and 3-wire SPI + 24-bit RGB interface. Sunlight-readable design with full 80° viewing angles, glare surface, and wide operating temperature range (-30°C to +80°C). ST7701S driver IC with 50,000-hour high-brightness LED backlight. Ideal for outdoor instruments, industrial control panels, medical devices, and compact HMI applications requiring a square display with excellent visibility in bright ambient light.
4.0-Inch High Brightness Square TFT LCD Module – 480×480 with SPI + RGB Interface
This 4.0-inch high brightness square TFT LCD module features a 480×480 resolution with a 1:1 aspect ratio, a 3-wire SPI + 24-bit RGB interface, and a sunlight-readable design. It is specifically engineered for outdoor instruments, industrial control panels, medical devices, and compact HMI applications requiring a square display format with excellent visibility in bright ambient light conditions. The glare surface, full 80° viewing angles, and wide operating temperature range (-30°C to +80°C) make it an exceptional choice for demanding outdoor and industrial environments.
Key Features
- High Brightness & Sunlight Readable – Optimized for outdoor and high ambient light environments
- Square 1:1 Aspect Ratio – 480×480 resolution for symmetrical, balanced display layouts
- 3-Wire SPI + RGB24bit Interface – SPI for command control plus 24-bit parallel RGB for high-speed video data transfer
- Full Viewing Angles – 80°/80°/80°/80° viewing angles for consistent image quality from all directions
- Glare Surface – High clarity and contrast for professional display applications
- Wide Operating Temperature – -30°C to +80°C for demanding outdoor and industrial environments
- Normally Black TFT – Excellent contrast and deep blacks for vivid imagery
- 50,000-Hour High Brightness LED Backlight – Reliable long-life illumination with 120mA typical current
- ST7701S Driver IC – High-performance driver optimized for RGB interface TFT displays
- Ultra-Slim Profile – 4.77mm module thickness for space-constrained designs
- No Touch Panel – Cost-effective solution for display-only applications
High Brightness & Sunlight Readable Advantage
This display module features a high brightness LED backlight design, delivering exceptional visibility in bright ambient light conditions. Key benefits include:
- Sunlight Readable – Optimized for outdoor and high ambient light environments
- High Brightness Backlight – 120mA typical LED current with 13.5V~17.0V drive voltage for maximum luminous output
- Glare Surface – High clarity for professional display applications
- Wide Operating Temperature – -30°C to +80°C for reliable performance in extreme conditions
- Square Format – Ideal for symmetrical instrument clusters and square HMI layouts
- Flexible Interface – 3-wire SPI + RGB24bit for easy integration with a wide range of MCUs
Technical Specifications
| Parameter | Specification |
|---|---|
| Size | 4.0-inch diagonal |
| Dot Matrix | 480 x RGB x 480 |
| Module Dimension | 78.8 x 82.95 x 4.77 mm |
| Active Area | 71.856 x 70.176 mm |
| Pixel Pitch | 0.1497 x 0.1462 mm |
| Aspect Ratio | 1:1 (Square) |
| LCD Type | TFT, Normally Black, Transmissive |
| Viewing Angle | 80°/80°/80°/80° (Full) |
| Interface | 3-Wire SPI + RGB24bit |
| Driver IC | ST7701S or Equivalent |
| Backlight Type | LED, Normally White (High Brightness) |
| Touch Panel | Without Touch Panel |
| Surface Treatment | Glare |
| Luminance (Brightness) | High Brightness (Sunlight Readable) |
| Operating Temperature | -30°C to +80°C |
| Storage Temperature | -30°C to +80°C |
| Interface Supply Voltage (VCC) | 2.5V ~ 3.6V (Typ. 2.8V) |
| Driver Current (White) | 27mA ~ 40.5mA (Typ.) |
| LED Voltage (VLED+) | 13.5V ~ 17.0V (Typ. 15.0V) |
| LED Current | 120mA (Typ.) |
| LED Life Time | 50,000 Hours |
Pin Interface
| Pin | Symbol | Function |
|---|---|---|
| 1 | VLED- | LED Backlight Cathode |
| 2 | VLED+ | LED Backlight Anode |
| 3 | GND | Power Ground |
| 4 | VCC | Power Supply (2.8V Typ.) |
| 5-12 | R0~R7 | Red Data Bus |
| 13-20 | G0~G7 | Green Data Bus |
| 21-28 | B0~B7 | Blue Data Bus |
| 29 | SCL | SPI Serial Clock Input |
| 30 | PCLK | Dot Clock Signal for RGB Interface |
| 31 | CS | SPI Chip Select (Active Low) |
| 32 | HSYNC | Line Sync for RGB Interface |
| 33 | VSYNC | Frame Sync for RGB Interface |
| 34 | DE | Data Enable for RGB Interface |
| 35 | SDA | SPI Serial Data Input/Output |
| 36 | RESET | External Reset (Active Low) |
| 37-40 | NC | No Connection |
Applications
This high brightness square TFT LCD module is specifically designed for outdoor, industrial, and compact applications where sunlight readability and a square display format are essential:
- Outdoor Instruments – Handheld test equipment, environmental meters, and outdoor data loggers
- Industrial Control Panels – HMI interfaces for outdoor and industrial equipment with square display layouts
- Medical Devices – Portable diagnostic devices and monitoring equipment with symmetrical displays
- Compact HMI – Small human-machine interfaces for industrial and consumer equipment
- Consumer Electronics – Portable media players, digital cameras, and electronic accessories
- Security Systems – Access control panels and outdoor surveillance interfaces
- Smart Home Devices – Thermostats, control panels, and home automation interfaces
Customization Options
We offer flexible customization to meet specific project requirements:
- Touch Panel – Resistive or capacitive touch panel integration available upon request
- Brightness – Custom brightness levels available for different outdoor/indoor environments
- Interface – Alternative interface options available depending on requirements
- FPC – Custom FPC length, connector type, and pinout available
- Operating Temperature – Extended temperature range versions available
- Surface Treatment – Optional surface treatments including anti-glare or hard coating
- Optical Bonding – For improved outdoor readability and durability
Selection Guide
When selecting this high brightness square TFT LCD module for your project, consider the following factors:
- Sunlight Readability – High brightness backlight (120mA LED current) ensures excellent visibility in outdoor and bright ambient light applications
- Square Display Format – 1:1 aspect ratio with 480×480 resolution ideal for symmetrical instrument clusters and square HMI layouts
- Interface Compatibility – 3-wire SPI + RGB24bit interface requires 24 data lines plus sync signals and 3 SPI lines; ensure your MCU/SoC supports parallel RGB output
- Power Requirements – VCC range 2.5V~3.6V with typical current 27~40.5mA; high brightness LED backlight requires 13.5V~17.0V at 120mA
- Viewing Angles – Full 80°/80°/80°/80° viewing angles for consistent image quality from all directions
- Operating Environment – Temperature range -30°C to +80°C suitable for outdoor and industrial applications
- Touch Integration – No touch panel included, but available as a customization option
- Mounting Space – Module dimension 78.8 x 82.95 mm with 4.77mm thickness; verify mechanical clearance in your design
Frequently Asked Questions
What makes this display “high brightness” and “sunlight readable”?
This display features a high brightness LED backlight with 120mA typical current and 13.5V~17.0V drive voltage, delivering excellent sunlight readability for outdoor and bright ambient light applications.
What is the resolution and aspect ratio of this display?
This display has a 480×480 dot matrix resolution with a 1:1 square aspect ratio, ideal for symmetrical display layouts.
Does this module include a touch panel?
No, this version does not include a touch panel. It is designed as a display-only module. Touch panel integration is available as a customization option.
What interface does this display use?
The module uses a 3-wire SPI + 24-bit RGB interface. SPI handles command control while RGB handles high-speed video data.
What is the typical power consumption?
Typical driver current is 27~40.5mA at 2.8V, and the high brightness LED backlight requires 13.5V~17.0V at 120mA, making it suitable for a range of applications.
What is the LED backlight lifetime?
The LED backlight has a typical operating life of 50,000 hours at 25°C.
What are the viewing angles of this display?
This display offers full 80°/80°/80°/80° viewing angles, providing consistent image quality from all directions.
Can you provide samples?
Yes, sample units are available for evaluation. Please submit your requirements through the sample request form.
Is driver support available?
Yes, we provide initialization code, datasheets, and technical support for integration. The ST7701S driver IC is well-supported with readily available driver libraries.
What is the MOQ for mass production?
MOQ depends on specific configurations. Please contact our sales team for current MOQ information.
Related Resources
- TFT LCD Modules
- High Brightness Displays
- RGB Interface Displays
- Industrial Displays
- LCD Interface Selection Guide
- Customization Services
For volume pricing, customization, or engineering support, please contact our sales team.
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