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NLT NL6448AC20-02 6.5 Inch a-Si TFT-LCD LCM 640×480 LCD Display Panel
NL6448AC20-02 is a legacy industrial-grade a-Si TFT-LCD module manufactured by NLT Technologies (formerly NEC LCD). This 6.5-inch panel delivers standard VGA resolution 640(RGB)×480 with classic 4:3 aspect ratio. Adopting transmissive normally black TFT technology and dual CCFL edge backlight, it features a 31-pin CMOS analog RGB interface, widely deployed as original replacement display for vintage factory automation equipment, CNC controllers, testing instruments and medical auxiliary terminals.
| Parameter Item | Specification |
|---|---|
| Model Number | NL6448AC20-02 |
| Manufacturer | NLT Technologies (NEC LCD) |
| Diagonal Size | 6.5 Inch |
| Display Technology | a-Si TFT-LCD, Transmissive, Normally Black |
| Native Resolution | 640(RGB) × 480 (VGA), ~117 PPI |
| Aspect Ratio | 4:3 |
| Pixel Arrangement | RGB Vertical Stripe |
| Active Area | 132.48 (W) × 99.36 (H) mm |
| Outline Dimension | 178.8 × 126.8 × 11.0 mm (W×H×D) |
| Typical Brightness | 200 cd/m² |
| Contrast Ratio | 150:1 (Typ.) |
| Viewing Angle (CR≥10) | 50°/50°/35°/45° (L/R/U/D), Optimal viewing: 6 o’clock |
| Response Time | 40 ms (Typ. Tr) |
| Color Depth | 6-bit, 262K Colors |
| Backlight | Dual CCFL Edge Lighting, Requires External CCFL Inverter, Lifespan: 10,000 Hours |
| Signal Interface | Single Channel CMOS Analog RGB, 31-Pin Connector |
| Supply Voltage | VDD = 5.0 V (Typ.) |
| Refresh Rate | 60 Hz |
| Surface Treatment | Clear Anti-Reflection Surface, 2H Hard Coating |
| Operating Temperature | 0°C ~ +50°C |
| Storage Temperature | -20°C ~ +60°C |
| Touch Function | No integrated touchscreen; external touch overlay optional |
| Net Weight | ~237 g |
Original NLT Industrial Legacy Panel: Standard OEM display for classic industrial equipment, fixed mounting hole layout, ideal for direct replacement of broken original screens.
Compatible with Legacy Industrial Controllers: CMOS analog RGB interface supports older-generation industrial mainboards, CNC control systems and dedicated signal drivers.
Dual CCFL Backlight Structure: Stable brightness output for long-time static industrial interface display; backlight lamps are replaceable.
Anti-Reflection Front Polarizer: Reduces ambient light reflection inside factory workshops, improves screen readability for operators.
Proven Long-Term Stability: Mature mass-production model, consistent electrical and mechanical parameters, widely verified in decades of automation applications.
CNC Machine Tool Control Panels & Factory Automation HMI
Legacy Industrial PLC Operator Terminals
Portable Testing, Measurement & Inspection Instruments
Medical Auxiliary Monitoring Equipment
Old-Style Industrial Self-service Kiosks
Embedded Display Modules for Analyzing Devices
Retrofit & Maintenance of Imported Automation Equipment
