NEC NL6448BC33-59D 10.4 Inch TFT LCD Panel

The NEC NL6448BC33-59D is a 10.4-inch industrial TFT-LCD panel designed for equipment requiring a 640 × 480 VGA resolution. The panel uses a-Si TFT-LCD technology with a traditional 4:3 aspect ratio and a TN, Normally White, Transmissive display mode. It provides a 211.2 × 158.4 mm active display area and supports 262K colors.

The display offers a typical luminance of 450 cd/m² and a 600:1 contrast ratio, with a viewing angle of approximately 70° horizontally and 45°/55° vertically at CR≥10. With its 76 PPI pixel density, the panel is suitable for industrial HMIs, embedded systems, medical equipment, control terminals and other applications requiring a legacy VGA display.

The NL6448BC33-59 uses a 31-pin CMOS interface with 1-channel, 6-bit RGB signaling and supports a typical 3.3V / 5.0V supply configuration. It uses two CCFL backlights without an integrated driver, making an appropriate external inverter necessary. These electrical and backlight characteristics are particularly important when using this panel as a replacement.

The supplied product listing identifies the panel as new with a 3-month warranty. The listing uses the base designation NL6448BC33-59, while the requested product designation is NL6448BC33-59D. Buyers should verify the complete marking on the existing panel before replacement.

Key Features

• NEC NL6448BC33-59D industrial TFT-LCD panel
• 10.4-inch diagonal display
• 640 × 480 VGA resolution
• 4:3 aspect ratio
• Approximately 76 PPI
• a-Si TFT-LCD technology
• TN, Normally White, Transmissive display mode
• 211.2 × 158.4 mm active display area
• 450 cd/m² typical brightness
• 600:1 typical contrast ratio
• 262K colors
• Approximately 43% NTSC color gamut
• Clear surface with 3H hard coating
• 31-pin CMOS connector
• 1-channel, 6-bit RGB interface
• 60 Hz frame rate
• 3.3V / 5.0V typical supply
• Two CCFL backlights
• External backlight driver required
• 8 ms rise / 25 ms fall response time
• Wide operating temperature range
• 2.0G vibration specification
• Without integrated touchscreen
• New condition
• 3-month warranty

Technical Specifications

The product listing specifies the 10.4-inch size, 640 × 480 resolution, 211.2 × 158.4 mm active area, 243 × 185.1 × 11 mm outline, 450 cd/m² luminance, 600:1 contrast ratio, 31-pin CMOS interface, two CCFL backlights, 3.3V / 5.0V supply and new condition.

The technical documentation for the NL6448BC33-59 confirms the 10.4-inch active-matrix TFT structure, 640 × 480 resolution, 262,144 colors, 600:1 typical contrast ratio and 31-pin interface.

10.4 Inch 640 × 480 VGA Display

The NL6448BC33-59D provides a 10.4-inch display with a 640 × 480 VGA resolution and a 4:3 aspect ratio. Its 211.2 × 158.4 mm active area provides approximately 76 pixels per inch.

This resolution is well suited to legacy industrial interfaces where the host controller or graphics system was designed around VGA output. The display can provide adequate space for machine parameters, menus, alarms, process values, measurements, status information and basic graphical interfaces.

For replacement applications, screen size and resolution should not be used as the only compatibility criteria. The interface, pinout, supply voltage, physical dimensions, mounting and backlight arrangement must also match the target equipment.

Display Technology

The NL6448BC33-59D uses amorphous silicon TFT-LCD technology with a TN, Normally White, Transmissive display configuration. The pixel arrangement is RGB vertical stripe.

The panel supports 262K colors through its 1-channel, 6-bit RGB interface and provides approximately 43% NTSC color gamut.

The Normally White configuration is important when selecting a replacement because another 10.4-inch VGA panel may use a different optical mode or electrical configuration even if its physical dimensions and resolution appear similar.

Brightness and Contrast

The NL6448BC33-59D has a typical brightness of 450 cd/m² and a typical contrast ratio of 600:1.

The typical viewing angle is approximately 70° left, 70° right, 45° upward and 55° downward at a contrast ratio of at least 10:1.

The panel uses a clear surface with a 3H hard coating. These optical characteristics should be considered when replacing an existing industrial display, especially when the original equipment has a fixed viewing position.

Interface and Connector

The NL6448BC33-59D uses a CMOS parallel RGB interface with 1-channel, 6-bit data and a 31-pin connector. The interface carries the RGB data and associated display timing signals.

The specified LCD supply is 3.3V / 5.0V typical. The correct supply configuration should be verified against the actual panel documentation and target equipment before power is applied.

Before installation, verify:

• Complete 31-pin connector pinout
• RGB signal assignment
• 6-bit RGB configuration
• Pixel clock
• Horizontal synchronization
• Vertical synchronization
• Data-enable signal
• Supply voltage
• Connector orientation
• Display timing
• Controller compatibility

A 31-pin connector alone does not guarantee compatibility. The electrical function of the individual pins must match the original equipment.

Backlight

The NL6448BC33-59D uses two CCFL backlight lamps. The supplied product information specifies no integrated backlight driver, so a suitable external inverter is required.

The CCFL arrangement is an important consideration when replacing the panel. A modern LED-backlit 10.4-inch display with the same 640 × 480 resolution may require a completely different backlight power supply, driver and control arrangement.

CCFL inverter circuits operate at high voltage. Installation and servicing should therefore be carried out with appropriate electrical precautions.

Mechanical Dimensions

The NL6448BC33-59D has a 211.2 × 158.4 mm active display area and an overall module size of approximately 243 × 185.1 × 11 mm according to the supplied product information.

These dimensions are important when installing the panel into an existing industrial enclosure, HMI housing or equipment chassis.

Before replacement, verify:

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

Another 10.4-inch VGA panel may have different mounting dimensions even when the screen size and resolution are identical.

Operating Temperature

The NL6448BC33-59D is specified for an operating temperature range of -20°C to +80°C and a storage temperature range of -10°C to +70°C according to the supplied product specifications.

The panel is also listed with a 2.0G vibration level, equivalent to approximately 19.6 m/s².

These specifications apply to the LCD module. The controller, inverter, power supply, cables and surrounding equipment may have different environmental limits.

Industrial Applications

The NL6448BC33-59D is suitable for compatible industrial and embedded equipment requiring a 10.4-inch VGA display with a CMOS RGB interface and CCFL backlight. The available product information identifies industrial and medical applications among its intended uses.

Potential applications include:

• Industrial PCs
• HMI systems
• Control-system display terminals
• Process-controller monitors
• CNC machine interfaces
• Industrial control panels
• Factory automation equipment
• Machine monitoring systems
• Medical equipment
• Medical monitoring systems
• Industrial instrumentation
• Embedded computer systems
• Operator terminals
• Process control equipment
• Legacy industrial machinery

The actual suitability depends on the electrical, mechanical, environmental, controller and backlight requirements of the target equipment.

Compatibility and Replacement Note

The NEC NL6448BC33-59D 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
• 10.4-inch screen size
• 640 × 480 resolution
• Active display area
• Overall dimensions
• Panel thickness
• Mounting arrangement
• Connector type and location
• 31-pin connector configuration
• Complete pinout
• CMOS RGB interface
• 1-channel, 6-bit configuration
• Pixel clock
• Hsync and Vsync
• Data-enable signal
• LCD supply voltage
• Two-CCFL backlight configuration
• CCFL inverter compatibility
• Backlight wiring
• Controller compatibility
• Operating temperature requirements
• Vibration requirements where applicable

The supplied product page identifies the product as NL6448BC33-59, while your requested model is NL6448BC33-59D. The suffix should be matched carefully against the marking on the original panel before ordering.

A similar 10.4-inch size, 640 × 480 resolution or 31-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, driver and controller compatibility should all be verified before installation.

Product Details

Product: NEC NL6448BC33-59D LCD Panel
Brand: NEC
Model: NL6448BC33-59D
Display Size: 10.4 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, 6-bit RGB
Connector: 31-pin
Brightness: 450 cd/m² typical
Contrast Ratio: 600:1 typical
Supply Voltage: 3.3V / 5.0V typical
Backlight: 2 × CCFL
Backlight Life: Not specified
Backlight Driver: External, no driver included
Operating Temperature: -20°C to +80°C
Storage Temperature: -10°C to +70°C
Touch Screen: Without touchscreen
Condition: New
Warranty: 3 months

Handling and Installation Precautions

The NL6448BC33-59D contains delicate LCD glass, polarizer material, driver electronics and CCFL backlight components. Handle the module carefully 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 31-pin connector carefully.
• Do not rotate, tilt or force the signal connector during insertion or removal.
• Verify the complete CMOS RGB pinout before applying power.
• Confirm the required supply voltage.
• Verify RGB signal mapping and display timing.
• Confirm pixel clock, Hsync, Vsync and DE requirements.
• Verify the two-CCFL backlight configuration.
• Use a compatible external CCFL inverter.
• Do not connect or disconnect CCFL wiring while power is applied.
• Be aware that CCFL inverter circuits generate high voltage.
• Follow appropriate ESD precautions when handling the module.
• Keep the display away from moisture and condensation.
• Wipe off water drops immediately to help prevent discoloration or spots.
• Avoid dropping, bending, twisting or striking the panel.
• Do not attempt to open or modify the module assembly.
• Protect the signal and CCFL cables from excessive bending.
• Provide sufficient clearance around the connector and inverter.
• Ensure mounting hardware does not place stress on the LCD glass.
• Confirm that the equipment operates within the specified environmental range.

Frequently Asked Questions

What is the NEC NL6448BC33-59D?

The NEC NL6448BC33-59D is a 10.4-inch color TFT-LCD panel with a 640 × 480 VGA resolution, 6-bit CMOS RGB interface and two CCFL backlights. It is intended for compatible industrial and embedded display applications.

What is the resolution of the NL6448BC33-59D?

The panel has a 640 × 480 pixel VGA resolution.

What is the screen size of the NL6448BC33-59D?

The NL6448BC33-59D is a 10.4-inch diagonal LCD panel with a 211.2 × 158.4 mm active display area.

What type of display is the NL6448BC33-59D?

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

How many colors does the NL6448BC33-59D support?

The panel supports 262K colors through its 1-channel, 6-bit RGB interface.

What is the brightness of the NL6448BC33-59D?

The typical luminance is 450 cd/m².

What is the contrast ratio of the NL6448BC33-59D?

The typical contrast ratio is 600:1.

What interface does the NL6448BC33-59D use?

The panel uses a CMOS parallel RGB interface with 1-channel, 6-bit RGB data.

How many pins does the NL6448BC33-59D connector have?

The panel uses a 31-pin connector. The complete pinout should be checked before installation because connector count alone does not establish compatibility.

What type of backlight does the NL6448BC33-59D use?

The panel uses two CCFL backlights and does not include an integrated backlight driver. A compatible external inverter is therefore required.

Does the NL6448BC33-59D have a touchscreen?

The standard panel is specified without an integrated touchscreen.

What are the dimensions of the NL6448BC33-59D?

The module is approximately 243 × 185.1 × 11 mm, with a 211.2 × 158.4 mm active display area.

What is the operating temperature of the NL6448BC33-59D?

The specified operating temperature range is -20°C to +80°C, with a storage temperature range of -10°C to +70°C.

Is the NL6448BC33-59D new?

The supplied product listing identifies the available unit as new.

What warranty is provided with the NL6448BC33-59D?

The supplied product listing specifies a 3-month warranty.

Can the NL6448BC33-59D be used as a replacement LCD?

It can be considered for compatible equipment designed around its specifications. Before installation, verify the exact model and suffix, dimensions, mounting, 31-pin pinout, CMOS RGB interface, supply voltage, display timing, CCFL configuration and inverter requirements. A similar screen size, resolution or connector does not automatically guarantee direct compatibility.