Polcd 3.5” High‑Performance TFT LCD Display Module

Product Advantages
Different from ordinary civilian display screens, our 3.5-inch TFT LCD module focuses on industrial-grade reliability and practicality. First, it features superior stability and durability, with anti-interference, anti-shake and long-term continuous operation capabilities, avoiding screen flicker, color distortion and failure in complex working conditions. Second, it has excellent compatibility and scalability, supporting multiple interface modes and customizable touch, brightness and structural parameters, which can be tailored according to customers’ personalized product development needs. Third, the optimized power consumption design realizes low-power and high-efficiency operation, effectively reducing the overall energy consumption of terminal equipment. In addition, the product undergoes strict quality inspection and aging tests, with stable batch consistency and low failure rate, greatly reducing customers’ after-sales maintenance costs.

Core Product Specifications
The 3.5-inch LCD display module adopts advanced a-Si TFT active matrix driving technology, with standardized and high-precision hardware parameters to ensure stable and consistent display performance in long-term operation. The detailed specifications are as follows:
- Display Size & Active Area: 3.5-inch diagonal, with an active display area of 48.96mm (H) × 73.44mm (V), featuring a compact and reasonable layout suitable for space-constrained device designs
- Resolution & Pixel Pitch: Supports mainstream 320×480 high-definition resolution, with a fine pixel pitch of 0.153mm, presenting sharp text, delicate graphics and seamless dynamic screen display
- Color Performance: Equipped with 18-bit RGB color depth, supporting up to 16.7M rich colors, effectively restoring true color details and realizing high-fidelity color reproduction
- Viewing Angle & Panel Type: Adopts IPS wide-view panel technology, achieving ultra-wide viewing angles with no color shift or brightness attenuation from all directions, greatly improving the visual experience of interactive operation
- Brightness & Backlight System: Built-in high-brightness LED backlight module with optional 300–850 cd/m² brightness range, adapting to indoor, outdoor and high-light working environments; 8 LED backlight units ensure uniform brightness and long service life
- Driver IC & Interface: Compatible with mainstream high-performance driver ICs including ILI9488 and ST7796S, supporting multiple mainstream interface protocols such as RGB 18-bit, MCU and SPI, realizing fast signal transmission and low-latency screen response
- Touch Function (Optional): Supports customized capacitive touch (CTP) or resistive touch panels (RTP), realizing sensitive, accurate and durable human-computer interaction, meeting diverse interactive scenario demands
- Environmental Adaptability: Industrial-grade wide temperature design, with an operating temperature range of -20°C to +70°C and storage temperature range of -30°C to +80°C, resisting extreme temperature changes and harsh industrial environments
- Structural Parameters: Compact module outline size, ultra-thin body design, with stable structural durability, easy for embedded installation and secondary development of various terminal devices

Wide Application Scenarios
Benefiting from its compact size, stable performance and strong adaptability, the 3.5-inch LCD display module is widely applicable in multiple fields: industrial control panels and PLC equipment, portable medical diagnostic instruments, handheld detection devices, intelligent vehicle display terminals, industrial Internet of Things terminals, smart home control panels and other commercial and industrial terminal products. It is an ideal display component for small and medium-sized intelligent terminal equipment upgrading and iteration.