## PD064VT5 Electronic Specifications and Parts Overview The **PD064VT5** is a 6.4-inch Thin Film Transistor Liquid Crystal Display (TFT-LCD) panel, primarily manufactured by **PVI (Prime View International)**, now part of E Ink Holdings. It was widely used in industrial equipment, medical devices, and automotive monitors due to its durability and standardized interface. --- ### 1. Key Technical Specifications The following table summarizes the primary electronic and optical characteristics of the PD064VT5: | Feature | Specification | | :--- | :--- | | **Screen Size** | 6.4 inches (Diagonal) | | **Resolution** | 640 × 480 (VGA) | | **Aspect Ratio** | 4:3 | | **Display Mode** | TN, Normally White, Transmissive | | **Luminance** | 400 cd/m² (Typical) | | **Contrast Ratio** | 400:1 (Typical) | | **Color Support** | 262K (6-bit) | | **Interface Type** | TTL (Transistor-Transistor Logic) | --- ### 2. Major Electronic Components & Parts The PD064VT5 assembly consists of several critical sub-components: #### A. The LCD Panel This is the glass substrate containing the TFT matrix and liquid crystals. It converts electrical signals into visual images by polarizing light. #### B. Backlight System (CCFL) Unlike modern LED screens, the original PD064VT5 typically uses a **CCFL (Cold Cathode Fluorescent Lamp)**. * **Lamp Type:** 1 pcs CCFL. * **Requirements:** Requires an external **High Voltage Inverter** to ignite and power the lamp. * **Replacement Note:** Many modern repairs involve "LED Backlight Conversion Kits" to replace the aging CCFL tubes. #### C. Driver ICs (Integrated Circuits) The panel has Source and Gate drivers bonded to the glass (COG - Chip on Glass) which manage the rows and columns of pixels. #### D. Connection Interfaces 1. **Signal Connector:** Usually a 31-pin connector used for the TTL data signal (RGB 6-bit), H-sync, V-sync, and Clock. 2. **Backlight Connector:** A separate 2-pin JST or similar connector specifically for the CCFL lamp power. --- ### 3. Pin Configuration (TTL Interface) The 31-pin interface is the "brain" of the panel. Below is a simplified representation of the signal groups: * **Power Supply:** VCC (usually +3.3V or +5.0V). * **Data Signals:** R0-R5, G0-G5, B0-B5 (Digital RGB data). * **Control Signals:** * **DCLK:** Dot Clock. * **HSYNC / VSYNC:** Horizontal and Vertical Synchronization. * **ENAB:** Data Enable signal. * **Ground:** Multiple GND pins for noise reduction. --- ### 4. Environmental and Power Considerations * **Input Voltage:** 3.3V (Typical) for the logic. * **Operating Temperature:** -20°C to +70°C (Industrial Grade). * **Storage Temperature:** -30°C to +80°C.