3.97 Inch TFT LCD Display Module ST7701 Driver 480*800 RGB Interface Color Screen

3.97 Inch TFT LCD Display Module ST7701 Driver 480*800 RGB Interface Color Screen For Arduino delivers sharp, high-resolution graphics and vibrant color rendering for advanced embedded human-machine interface (HMI) projects. This display integrates the high-performance Sitronix ST7701 driver IC, which drives a dense 480×800 pixel matrix with true IPS wide-angle clarity. Furthermore, the module provides a high-speed parallel RGB interface alongside serial SPI control lines for rapid register initialization and high-frame-rate image streaming. Consequently, microcontrollers such as the ESP32-S3, STM32 series, and graphics-enabled development boards can drive responsive UI animations with low latency. Therefore, this color panel serves as an exceptional visual display for modern smart home terminals, medical monitors, and custom IoT instrumentation.

Key Features:

• High-Definition Resolution: Features 480×800 pixels packed into a 3.97-inch viewing area, delivering crisp typography and detailed graphical elements.
• IPS All-Angle Viewing: Provides full-angle viewing capabilities up to ≈ 160° to prevent color shifting and contrast degradation when viewed off-center.
• High-Speed RGB Interface: Employs parallel RGB data lines to support high-throughput video pipelines and fluid UI transitions.
• Rich Color Reproduction: Renders up to 16.7 million 24-bit RGB colors for realistic photo rendering and dynamic graphic styling.
• Integrated Backlight Circuit: Incorporates a bright, power-efficient LED backlight array that ensures excellent visibility under indoor and ambient lighting.

Technical Specifications:

• Driver IC: Sitronix ST7701 / ST7701S
• Screen Size: 3.97 Inch diagonal
• Resolution: 480 x 800 pixels (RGB)
• Display Type: IPS TFT LCD Transmissive
• Display Colors: 262K / 16.7M Colors (18-bit / 24-bit RGB)
• Logic Operating Voltage (VDD/IOVCC): 2.8 V to 3.3 V ±5%
• Backlight Voltage: ≈ 15.0 V to 19.2 V (Series LED configuration)
• Backlight Forward Current: 20 mA to 40 mA
• Operating Temperature Range: -20°C to +70°C
• Storage Temperature Range: -30°C to +80°C

Mechanical Specifications:

• Interface Connection: 40-Pin / 50-Pin FPC Ribbon Connector
• Color Arrangement: RGB Vertical Stripe
• Polarizer Type: Anti-Glare surface treatment
• Viewing Direction: Full Viewing Angle (IPS Free Viewing)

Dimensions:

• Module Outline Dimensions: ≈ 57.14 mm x 96.85 mm x 2.10 mm
• Active Area (AA): ≈ 51.84 mm x 86.40 mm
• Pixel Pitch: ≈ 0.108 mm x 0.108 mm
• Module Weight: ≈ 28.5 g

Pinout and Wiring:

• GND: Connects to common system power ground.
• VDD / IOVCC: Supplies 3.3V power to the ST7701 logic core and digital I/O circuitry.
• CS / SCL / SDA: Serial bus lines used for chip initialization and command configuration before RGB streaming begins.
• RESET: Low-level hardware reset input to reset the internal controller logic.
• DOTCLK / PCLK: Pixel clock input line synchronizing parallel pixel transmission.
• HSYNC: Horizontal synchronization signal line.
• VSYNC: Vertical synchronization signal line.
• DE: Data Enable line (moreover, RGB controllers require this signal for active display timing).
• R0-R7, G0-G7, B0-B7: 24-bit parallel RGB color data lines for direct frame buffer updates.
• LEDA / LEDK: Backlight Anode and Cathode pins (however, you must use a constant-current LED driver to power the backlight safely).

Datasheet Reference:

• Download Sitronix ST7701 Controller Datasheet

Commonly Used in:

• Smart Home Wall Panels: Creating full-color rotary or portrait touch dashboards for thermostat and lighting automation.
• Handheld Test Equipment: Serving as the main visual readout for portable oscilloscopes, multimeters, and spectrum analyzers.
• Automotive OBD-II Gauges: Showing real-time vehicle telemetry, engine diagnostics, and custom sensor gauges.

Applications:

• Embedded GUI Development: Running graphical libraries like LVGL, TouchGFX, or Embedded Wizard on ESP32-S3 and STM32 MCUs.
• Industrial Machine Panels: Displaying process parameters, flow charts, and warning indicators on factory machinery.
• Medical Instrumentation: Visualizing vital signs, pulse waveforms, and measurement history on patient monitoring devices.

Equivalent Models:

• ILI9488 3.5 Inch TFT LCD: A popular MCU/SPI display module, although it offers a lower resolution of 320×480 pixels.
• ST7796S 4.0 Inch TFT LCD: A comparable medium-sized display controller supporting SPI and parallel 8080 interfaces.
• NT35510 3.97 Inch TFT Display: A direct high-resolution alternative matching the 480×800 form factor with similar RGB/MIPI driving options.

Package Includes:

• 1 x 3.97 Inch TFT LCD Display Module ST7701 Driver 480*800 RGB Interface Color Screen