The part number **JH395320480ACNDNNTHCWC** refers to a high-performance **Thin Film Transistor (TFT) Liquid Crystal Display (LCD)** module. Based on the naming conventions of industrial display manufacturers (like JHD or similar specialist vendors), we can break down the specifications of this component. --- ### 1. Specification Breakdown The alphanumeric string defines the physical and electrical characteristics of the display: | Code Segment | Component Detail | Description | | :--- | :--- | :--- | | **JH** | Manufacturer Prefix | Likely JingHao or a similar industrial display partner. | | **395** | Diagonal Size | **3.95 inches** measured diagonally. | | **320480** | Resolution | **320 x 480 pixels** (HVGA resolution). | | **ACN** | Interface/Driver | Typically indicates an RGB or MCU interface with a specific driver IC. | | **DN** | Backlight Type | High-brightness White LED (standard configuration). | | **NTH** | Panel Technology | TN (Twisted Nematic) or IPS; "NTH" often refers to a specific Viewing Angle (e.g., 6 o'clock or 12 o'clock). | | **CWC** | Touch Panel | Indicates a **Capacitive Touch Panel (CTP)** with a specific controller. | --- ### 2. Key Electronic Components This module is not just a screen; it is an integrated system consisting of several key electronic layers: 1. **Driver IC (Integrated Circuit):** Usually a chip like the **ILI9488** or **ST7796S**. This chip translates data from your microcontroller (Arduino, ESP32, STM32) into voltage signals that control the liquid crystals. 2. **FPC (Flexible Printed Circuit):** The "ribbon cable" extending from the glass. This contains the traces for the data bus, power supply (VCC/IOVCC), and the backlight circuit. 3. **Backlight Unit (BLU):** A string of 6 to 10 white LEDs arranged in series or parallel, requiring a constant current driver (typically 3.0V - 3.3V). 4. **Capacitive Touch Controller:** A separate IC (often a FocalTech or Goodix chip) mounted on the touch panel's FPC to handle multi-touch gestures and I2C communication. --- ### 3. Technical Parameters (Typical) | Parameter | Value | | :--- | :--- | | **Display Mode** | Transmissive / Normally White or Black | | **Active Area** | Approx. 55.44(W) × 83.52(H) mm | | **Operating Voltage** | 2.8V - 3.3V | | **Interface** | SPI, 8/16-bit Parallel, or RGB | | **Brightness** | 300 - 500 cd/m² | | **Touch Interface** | I2C (Inter-Integrated Circuit) | --- ### 4. Application Usage This part is commonly found in: * **Handheld Medical Devices:** For clear, high-resolution readouts. * **Smart Home Controllers:** Thermostats or security panels. * **Industrial Testing Equipment:** Where a compact but touch-enabled UI is required. ---