NEC NL6448AC30-10 9.4 Inch TFT LCD Panel

The NEC NL6448AC30-10 is a 9.4-inch color TFT-LCD panel designed for industrial and legacy display applications requiring a 640 × 480 VGA resolution. Manufactured by NEC, this panel uses a-Si TFT-LCD technology with a traditional 4:3 aspect ratio and a TN, Normally White, Transmissive display configuration. It provides a 192 × 144 mm active display area and an RGB vertical stripe pixel arrangement.

The NL6448AC30-10 supports 4096 colors and has a typical brightness of approximately 90 cd/m² with a typical contrast ratio of 110:1. Its relatively low brightness and legacy display architecture reflect its original use in older portable computers and industrial systems rather than modern high-brightness display applications.

For connectivity, the panel uses a 34-pin CMOS interface with 1-channel 4-bit RGB data and operates from a typical 5.0V supply. The display uses a single CCFL backlight with an integrated inverter. These characteristics are particularly important when considering the NL6448AC30-10 as a replacement LCD because its parallel RGB interface and CCFL system differ significantly from newer LVDS and LED-backlit panels.

The NL6448AC30-10 is suitable for compatible industrial equipment, legacy computers, machine interfaces, control systems, instrumentation and other equipment designed around its specific VGA, CMOS and CCFL configuration. Before replacing an existing panel, the exact connector pinout, dimensions, supply voltage, signal interface and backlight arrangement should be verified.

Key Features

• NEC NL6448AC30-10 TFT-LCD panel
• 9.4-inch diagonal display
• 640 × 480 VGA resolution
• 4:3 aspect ratio
• a-Si TFT-LCD technology
• TN, Normally White, Transmissive display mode
• 192 × 144 mm active display area
• RGB vertical stripe pixel arrangement
• 90 cd/m² typical brightness
• 110:1 typical contrast ratio
• 4096 colors
• Approximately 55% NTSC color gamut
• 34-pin connector
• CMOS 1-channel, 4-bit interface
• 5.0V typical LCD supply
• Single CCFL backlight
• Integrated CCFL inverter
• 60 Hz refresh rate
• 0°C to +50°C operating temperature
• -20°C to +60°C storage temperature
• No touchscreen specified

Technical Specifications

The available technical references identify the NL6448AC30-10 as a 9.4-inch, 640 × 480 NEC TFT-LCD with 192 × 144 mm active area, 90 cd/m² typical luminance, 110:1 contrast ratio, 4096 colors, 34-pin CMOS interface and a single CCFL backlight with inverter.

9.4 Inch 640 × 480 VGA Display

The NEC NL6448AC30-10 features a 9.4-inch display with 640 × 480 VGA resolution. The 4:3 format was widely used in older laptops, industrial computers, machine interfaces and embedded display systems.

The active display area is 192 × 144 mm, providing approximately 84 pixels per inch. This resolution is suitable for displaying text, menus, machine parameters, numerical values, alarms, status information and simple graphical interfaces.

Because the NL6448AC30-10 is a legacy panel, the VGA resolution should not be used as the only replacement criterion. The interface, connector, pinout, supply voltage, physical dimensions and backlight configuration are equally important.

Display Technology

The NL6448AC30-10 uses amorphous silicon TFT-LCD technology with a TN, Normally White, Transmissive display mode. The panel uses an RGB vertical stripe pixel arrangement.

The display supports 4096 colors and uses a 1-channel 4-bit CMOS RGB signal configuration. This is a parallel RGB interface rather than the LVDS interface found on many newer industrial LCD panels.

This distinction is important when selecting a replacement. A modern 9.4-inch TFT panel with the same 640 × 480 resolution may use LVDS, a different voltage, a different pinout or a different display timing configuration.

Brightness and Contrast

The NL6448AC30-10 has a typical brightness of approximately 90 cd/m² and a typical contrast ratio of 110:1.

These optical specifications are substantially different from those of many modern industrial LCD panels. Therefore, a replacement should be evaluated according to the actual viewing requirements of the original equipment rather than assuming that a newer panel with higher brightness will be automatically compatible.

The specified typical viewing angles are approximately 45° left, 45° right, 25° upward and 25° downward under the applicable contrast-ratio condition.

Interface and Connector

The NL6448AC30-10 uses a CMOS parallel RGB interface, with a 1-channel, 4-bit configuration and a 34-pin connector. The panel operates from a typical 5.0V supply.

This interface is different from the LVDS interfaces used by many later-generation LCD panels.

Before connecting the panel, verify:

• Complete 34-pin connector pinout
• RGB signal assignment
• Horizontal and vertical synchronization signals
• Pixel clock requirements
• Logic voltage
• Connector orientation
• Display timing
• Controller compatibility
• Power and ground connections

A 34-pin connector does not automatically mean that another 34-pin LCD is compatible. The individual pin assignments and electrical requirements must match.

Backlight

The NL6448AC30-10 uses a single CCFL backlight with an integrated inverter. The available technical documentation identifies the backlight as a cold-cathode fluorescent lamp system and specifies a 12V backlight supply in the original module configuration.

The integrated inverter is an important characteristic when replacing the panel. A modern LED-backlit display will normally require a completely different backlight power and control arrangement.

The CCFL backlight operates at high voltage internally, so appropriate precautions should be taken during installation and servicing.

Mechanical Dimensions

The NL6448AC30-10 has a 192 × 144 mm active display area and an overall module size of approximately 259.5 × 179.0 × 12.5 mm according to available specification references.

Mechanical compatibility should be checked carefully before installation.

Verify:

• Overall width
• Overall height
• Panel thickness
• Active display area
• Bezel opening
• Mounting-hole locations
• Connector position
• CCFL cable routing
• Rear clearance
• Enclosure compatibility

The exact physical dimensions should be checked against the original panel because different versions or replacement assemblies can use different mechanical arrangements.

Operating Temperature

The NL6448AC30-10 is specified for an operating temperature range of 0°C to +50°C and a storage temperature range of -20°C to +60°C.

These specifications apply to the LCD module. The controller, power supply, cables, inverter and surrounding equipment may have separate temperature limitations.

For industrial equipment operating near these limits, the complete display assembly should be evaluated according to the requirements of all associated components.

Industrial Applications

The NEC NL6448AC30-10 is a legacy 9.4-inch VGA TFT-LCD designed around a CMOS parallel RGB interface and CCFL backlight. Its characteristics make it relevant to equipment that was originally designed around this type of display.

Potential applications include:

• Industrial PCs
• Legacy laptop computers
• HMI systems
• Machine interfaces
• Industrial control panels
• CNC machine interfaces
• Factory automation equipment
• Industrial instrumentation
• Monitoring equipment
• Embedded computer systems
• Operator terminals
• Control and measurement equipment
• Legacy industrial machinery

Historical references also document the NL6448AC30-10 as a display used with NEC Versa systems and compatible legacy computer hardware.

Compatibility and Replacement Note

The NEC NL6448AC30-10 should be selected as a replacement only after comparing its complete specifications with the original LCD.

Before purchasing or installing the panel, verify:

• Exact original LCD model and suffix
• 9.4-inch screen size
• 640 × 480 resolution
• Active display area
• Overall dimensions
• Panel thickness
• Mounting arrangement
• Connector type and location
• 34-pin connector configuration
• Complete pinout
• CMOS RGB interface
• 4-bit RGB configuration
• Synchronization signals
• Pixel clock
• 5.0V LCD supply
• CCFL backlight configuration
• Integrated inverter requirements
• Backlight supply
• Controller compatibility
• Operating temperature requirements

A similar 9.4-inch size, 640 × 480 resolution or 34-pin connector does not automatically mean another LCD is a direct replacement.

Connector type alone does not guarantee compatibility. The exact model and suffix, dimensions, mounting, pinout, interface, voltage, timing, backlight and controller compatibility should all be verified.

This is especially important with the NL6448AC30-10 because it uses a legacy 1-channel 4-bit CMOS RGB interface and CCFL backlight with an integrated inverter, rather than the LVDS and LED configurations common in newer industrial LCDs.

Product Details

Product: NEC NL6448AC30-10 LCD Panel
Brand: NEC
Model: NL6448AC30-10
Display Size: 9.4 inches
Resolution: 640 × 480 pixels, VGA
Panel Type: a-Si TFT-LCD
Display Type: Color TFT-LCD Module
Display Mode: TN, Normally White, Transmissive
Interface: CMOS, 1 channel, 4-bit RGB
Connector: 34-pin
Brightness: 90 cd/m² typical
Contrast Ratio: 110:1 typical
Supply Voltage: 5.0V typical
Backlight: Single CCFL
Backlight Life: Not specified
Backlight Driver: Integrated inverter
Operating Temperature: 0°C to +50°C
Storage Temperature: -20°C to +60°C
Touch Screen: Without touchscreen
Condition: Not specified
Warranty: Not specified

Handling and Installation Precautions

The NL6448AC30-10 contains delicate LCD glass, polarizer material, driver electronics and a CCFL backlight system. Careful handling is required during installation.

• Avoid applying pressure directly to the LCD glass.
• Do not scratch or damage the front polarizer.
• Keep sharp tools and hard objects away from the display surface.
• Power off the equipment before connecting or disconnecting the LCD.
• Handle the 34-pin connector carefully.
• Do not force the connector into position.
• Verify the complete CMOS RGB pinout before applying power.
• Confirm the required 5.0V LCD supply.
• Verify RGB signal and synchronization assignments.
• Confirm pixel-clock and timing requirements.
• Do not connect or disconnect the backlight while powered.
• Be aware that CCFL inverter circuits generate high voltage.
• Follow appropriate ESD precautions when handling the module.
• Keep the display away from moisture.
• Avoid dropping, bending, twisting or striking the panel.
• Do not apply excessive pressure to the rear circuit board.
• Protect the signal and CCFL cables from excessive bending.
• Provide sufficient clearance around the connector and backlight wiring.
• Ensure mounting hardware does not place stress on the LCD glass.
• Confirm that the equipment operates within the specified temperature range.

Frequently Asked Questions

What is the NEC NL6448AC30-10?

The NEC NL6448AC30-10 is a 9.4-inch color TFT-LCD panel with a 640 × 480 VGA resolution, TN Normally White Transmissive display mode, CMOS RGB interface and CCFL backlight.

What is the resolution of the NL6448AC30-10?

The NL6448AC30-10 has a 640 × 480 pixel VGA resolution.

What is the screen size of the NL6448AC30-10?

The panel has a 9.4-inch diagonal display with a 192 × 144 mm active display area.

What type of display is the NL6448AC30-10?

It is an a-Si TFT-LCD using a TN, Normally White, Transmissive display configuration.

How many colors does the NL6448AC30-10 support?

The panel is specified for 4096 colors.

What is the brightness of the NL6448AC30-10?

The typical brightness is approximately 90 cd/m².

What is the contrast ratio of the NL6448AC30-10?

The typical contrast ratio is approximately 110:1.

What interface does the NL6448AC30-10 use?

The panel uses a CMOS parallel RGB interface with a 1-channel, 4-bit configuration.

How many pins does the NL6448AC30-10 connector have?

The NL6448AC30-10 uses a 34-pin connector. The complete pinout must be verified before connection.

What type of backlight does the NL6448AC30-10 use?

The panel uses a single CCFL backlight with an integrated inverter.

Does the NL6448AC30-10 have a touchscreen?

The standard NL6448AC30-10 is specified without a touchscreen.

What are the dimensions of the NL6448AC30-10?

Available references specify approximately 259.5 × 179.0 × 12.5 mm for the module outline and 192 × 144 mm for the active display area.

What is the operating temperature of the NL6448AC30-10?

The specified operating temperature range is 0°C to +50°C, with a storage range of -20°C to +60°C.

Can the NL6448AC30-10 be used as a replacement LCD?

It can be considered for compatible equipment designed around the NEC NL6448AC30-10 specification. Before installation, verify the exact model, dimensions, mounting, 34-pin pinout, CMOS RGB interface, 5V supply, display timing, CCFL backlight and controller compatibility. A similar screen size, resolution or connector does not automatically guarantee direct compatibility.