3.5 inch TFT LCD display Module 320x480 Resolution SPI Interface ST7796
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This 3.5 inch TFT LCD display module delivers a resolution of 320x480 pixels and is powered by a high-brightness LED backlight that reaches a luminance of 500 cd/m². By incorporating Multi-Domain Vertical Alignment (MVA) technology, this 3.5 inch TFT LCD display module remains clearly readable even under direct sunlight, while offering excellent visual quality across a wide viewing angle of up to 70°. Although this transmissive LCD does not include touch screen functionality, its compact form factor, low 3.3V operating voltage, and superior display performance make the 3.5 inch TFT LCD display module an ideal solution for projects requiring vertical output without touch interaction. Operating reliably from -20°C to 70°C, this 3.5 inch TFT LCD display module is optimized for a 12 o’clock viewing angle and is well suited for embedded systems, industrial equipment, security devices, and handheld terminals that demand high-quality color imaging. The module communicates via a 3-wire or 4-wire SPI serial interface with pin header connections.
The 3-wire/4-wire SPI interface of this 3.5 inch TFT LCD display module greatly improves communication efficiency between an Arduino (or C8051 MCU) and the display. Users benefit from fast data transmission and real-time updates, resulting in smoother animations and richer visuals. The flexible interface design is compatible with various Arduino boards; moreover, this 3.5 inch TFT LCD display module is driven by the ST7796 controller, which ensures robust performance and reliability. The controller is deeply optimized to manage all display functions, guaranteeing stable operation and precise rendering of images and graphics. All our display products, including this 3.5 inch TFT LCD display module, are RoHS compliant and conform to strict environmental and safety standards.
The Specification of the 3.5 inch TFT LCD display Module
Wiring instructions of the 3.5 inch TFT LCD display Module
This module model offers a choice between 3-wire and 4-wire SPI interfaces; users may select the appropriate option based on their specific requirements. Please refer to the following diagrams for detailed wiring instructions.
LED back light specification of the 3.5 inch TFT LCD display Module
| Item | Symbol | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Forward voltage | VF |
If = 3.2V / 20mA / 1-chip - |
- | - | - | V |
| Forward current | IF | - | - | - | mA | |
| Luminance (With LCD) | Lv | Without TP | - | 500 | - | cd/m² |
| Luminance (With LCD) | Lv | With TP | - | 400 | - | cd/m² |
| Operating lifetime | - | Without TP (25°C, IF=20mA) | 20,000 | - | - | Hour |
| Operating lifetime | - | With TP (25°C, IF=20mA) | 30,000 | - | - | Hour |
Applications of the 3.5 inch TFT LCD display Module
The 3.5 inch TFT LCD display Module is designed for a wide range of embedded and industrial applications. Thanks to its high brightness (500 cd/m²) and MVA technology, this 3.5 inch TFT LCD display Module performs exceptionally well in outdoor or high-ambient-light environments such as portable handheld terminals and field diagnostic equipment. In the field of industrial control, the 3.5 inch TFT LCD display Module is ideal for HMI panels, PLC interfaces, and industrial automation monitors where stable vertical display output is required without touch interaction. Security devices also benefit from this 3.5 inch TFT LCD display Module, including access control systems, video intercoms, and surveillance equipment that demand reliable operation across extreme temperatures (-20°C to 70°C). Additionally, the 3.5 inch TFT LCD display Module is widely used in embedded systems powered by Arduino or C8051 microcontrollers, thanks to its efficient 3-wire/4-wire SPI interface. Other suitable applications include medical instrument displays, portable testing devices, consumer electronics, and rear-seat entertainment systems. With its ST7796 controller, RoHS compliance, and compact dimensions, the 3.5 inch TFT LCD display Module is a versatile choice for any project demanding high-quality color graphics in a space-saving, sunlight-readable, and touch-free form factor.