The part number **JH35320480ACNDMNTZCWC** corresponds to a specific **TFT-LCD (Thin Film Transistor Liquid Crystal Display) module**. This code follows a structured naming convention typically used by manufacturers of small-to-medium display panels. ### 1. Specification Breakdown Based on standard industrial naming conventions for display modules, the part number can be broken down as follows: | Segment | Meaning | Interpretation | | :--- | :--- | :--- | | **JH** | Manufacturer Prefix | Likely "JingHao" or a similar display manufacturer. | | **35** | Screen Size | **3.5-inch** diagonal measurement. | | **320480** | Resolution | **320 x 480 pixels** (HVGA resolution). | | **ACN** | Interface/Technique | Often refers to the interface type (likely MCU or RGB) and TN/IPS panel technology. | | **DMNT** | Custom Features | Specific mechanical dimensions or "Dot Matrix" configuration. | | **ZCWC** | Backlight/Connector | Specific white LED backlight configuration and connector pinout. | --- ### 2. Key Electronic Components A display module of this type consists of several integrated electronic sub-systems: #### A. The Display Controller (IC) * **Common Chips:** Usually powered by an **ILI9488**, **ST7796S**, or similar driver IC. * **Function:** This IC translates signals from your microcontroller (like Arduino, ESP32, or STM32) into the voltage levels required to flip the liquid crystals. #### B. The Backlight Unit (BLU) * **Components:** Typically 6 white LEDs connected in parallel or series. * **Electrical Specs:** Usually requires ~3.0V to 3.3V. It often includes a constant current driver circuit to manage brightness via PWM. #### C. FPC (Flexible Printed Circuit) * This is the orange/brown ribbon cable. It contains the data lines (8/16-bit parallel or SPI), power lines (VCC/GND), and reset pins. #### D. Touch Panel (Optional) * The "T" in many codes indicates a **Touch** layer. * **Resistive:** Uses a 4-wire interface (X+, X-, Y+, Y-). * **Capacitive:** Uses an I2C interface (SDA, SCL). --- ### 3. Connection & Interface Most 3.5" 320x480 modules use one of the following communication protocols: | Interface Type | Pins Used | Best For | | :--- | :--- | :--- | | **SPI (Serial)** | 4-5 pins | Low-speed updates, simple wiring. | | **8-bit Parallel** | 12-15 pins | Balanced speed and complexity. | | **16-bit Parallel** | 20+ pins | High-speed video and complex UI. | --- ### 4. Technical Usage Tips 1. **Logic Level:** Most of these displays are **3.3V logic**. Connecting them directly to a 5V Arduino without a level shifter may damage the Controller IC. 2. **Current Draw:** The backlight is the primary power consumer (approx. 60mA - 100mA). Ensure your power regulator can handle the load. 3. **Drivers:** If using with C++/Arduino, the **GFX** or **TFT_eSPI** libraries are the industry standard for driving these resolutions.