The part number **JH70800480BCNDMNTZCWC** corresponds to a specific **TFT LCD Display Module**. These codes are often used by manufacturers like *Jinghua (JH)* or similar display specialized vendors. Below is a breakdown of the electronic components and specifications typically associated with this module: --- ### 1. General Specifications The part number itself contains "0800480", which typically denotes the resolution. | Feature | Specification | | :--- | :--- | | **Display Type** | TFT LCD (Thin Film Transistor) | | **Screen Size** | Likely 7.0 Inches (standard for this series) | | **Resolution** | 800 x 480 Pixels (WVGA) | | **Interface** | RGB 24-bit or LVDS (common for this class) | | **Backlight** | White LED (WLED) | --- ### 2. Breakdown of the Part Number Logic While specific to the manufacturer, these codes generally follow this hierarchy: * **JH**: Manufacturer Code (e.g., Jinghua). * **70**: Indicates a **7.0-inch** diagonal screen size. * **800480**: Resolution (800 horizontal x 480 vertical pixels). * **BCN**: Internal revision or glass type (often TN or IPS). * **DMN**: Driver IC configuration or specific module thickness. * **TZCWC**: Packaging/Customization code (Temperature range, Connector type, or Wide Color gamut). --- ### 3. Key Electronic Components A display module of this type consists of the following integrated parts: #### A. The LCD Controller/Driver To manage 800x480 pixels, the module integrates a Source Driver and a Gate Driver IC. * **Function:** Translates digital signals (RGB) into analog voltages to twist the liquid crystals. #### B. LED Backlight Circuit * **Components:** A string of white LEDs (usually 18–27 LEDs in series/parallel). * **Requirements:** Requires a constant current LED driver circuit (usually 15V–25V depending on the string configuration). #### C. FPC (Flexible Printed Circuit) * The "tail" of the display. It contains the gold-plated pins (usually 40-pin or 50-pin) that connect to your main PCB. #### D. Touch Panel (Optional suffix "TZ") * Many modules in this series include either a **Resistive** or **Capacitive** touch overlay. * **Capacitive:** Uses an I2C interface (e.g., Goodix or FocalTech IC). * **Resistive:** Uses a 4-wire analog interface (X+, X-, Y+, Y-). --- ### 4. Technical Pinout (Common for 7" 800x480) Most displays following this naming convention use a standard 40-pin or 50-pin TTL/RGB interface: | Pin Group | Function | Description | | :--- | :--- | :--- | | **VCC/VDD** | Power Supply | Typically 3.3V for logic. | | **RGB [0-7]** | Data Lines | 8-bit Red, 8-bit Green, 8-bit Blue signals. | | **HSYNC/VSYNC** | Sync | Horizontal and Vertical timing pulses. | | **DE** | Data Enable | Indicates when valid pixel data is being sent. | | **PCLK** | Pixel Clock | Synchronizes the data transfer. | | **LEDA/LEDK** | Backlight | Anode and Cathode for the LED strings. | ---