NEC NL6448BC33-64R 10.4 Inch TFT LCD Panel

The NEC NL6448BC33-64R is a 10.4-inch industrial color TFT-LCD panel designed for equipment requiring a 640 × 480 VGA resolution. Manufactured by NEC, it uses a-Si TFT active-matrix technology with a traditional 4:3 aspect ratio and provides a 211.2 × 158.4 mm active display area. The panel supports 262K colors and uses an RGB vertical-stripe pixel arrangement.

The NL6448BC33-64R provides a typical luminance of 450 cd/m² and a 600:1 typical contrast ratio. Its viewing angle is approximately 80° horizontally, 80° upward and 60° downward, making it suitable for industrial equipment where the display may need to be viewed from different positions.

The panel uses a CMOS interface with 6-bit RGB data and a 31-pin connector. It operates from a 3.3V or 5.0V panel supply and uses two CCFL lamps for backlighting. The recommended inverter is specified separately, so the backlight driver requirements should be checked before installation.

The supplied product page is listed under the closely related NL6448BC33-64D designation and identifies that unit as a new 10.4-inch panel with a 3-month warranty. Since your requested model is NL6448BC33-64R, the exact suffix should be matched against the original panel before purchase.

Key Features

• NEC NL6448BC33-64R industrial TFT-LCD panel
• 10.4-inch diagonal display
• 640 × 480 VGA resolution
• 4:3 aspect ratio
• Approximately 76 PPI
• a-Si TFT active-matrix technology
• 211.2 × 158.4 mm active display area
• 450 cd/m² typical luminance
• 600:1 typical contrast ratio
• 262K colors
• Approximately 40% NTSC color gamut
• RGB vertical-stripe pixel arrangement
• CMOS 6-bit RGB interface
• 31-pin connector
• 60 Hz frame rate
• 3.3V / 5.0V panel supply
• Two CCFL backlight lamps
• Edge-light backlight configuration
• Recommended external inverter
• Approximately 50,000-hour CCFL backlight specification
• Antiglare surface treatment
• 3H polarizer hardness
• Wide viewing angles
• Suitable for compatible industrial and legacy equipment
• No integrated touchscreen specified

Technical Specifications

The specifications above are based primarily on the NL6448BC33-64R technical documentation. The supplied product page for the related NL6448BC33-64D lists a 10.4-inch panel with 640 × 480 resolution, 450 cd/m² brightness, 600:1 contrast, 31-pin CMOS interface, 2-piece CCFL backlight and 3.3V/5.0V supply.

10.4 Inch 640 × 480 VGA Display

The NL6448BC33-64R features a 10.4-inch diagonal display with a 640 × 480 VGA resolution and a traditional 4:3 aspect ratio. Its active display area measures 211.2 × 158.4 mm, providing approximately 76 pixels per inch.

The VGA resolution is well suited to legacy industrial systems that were designed around 640 × 480 graphics output. It can display machine parameters, menus, alarms, process values, status information, measurements and basic graphical interfaces.

For replacement applications, however, the display resolution and diagonal size are only part of the compatibility check. The interface, connector pinout, electrical supply, physical dimensions and backlight arrangement must also match the original equipment.

Display Technology

The NL6448BC33-64R uses amorphous silicon TFT active-matrix technology. The panel uses a TN, Normally White, Transmissive configuration with an RGB vertical-stripe pixel arrangement.

The panel supports 262,144 colors through its 6-bit RGB interface and provides approximately 40% NTSC color gamut. The active-matrix architecture is suitable for graphical interfaces used in industrial control and embedded equipment.

The Normally White configuration should be considered when selecting a replacement. Another 10.4-inch VGA panel may have a different optical configuration even if its resolution and physical size appear similar.

Brightness and Contrast

The NL6448BC33-64R has a typical luminance of 450 cd/m² and a typical contrast ratio of 600:1.

The specified viewing angles are approximately 80° left, 80° right, 80° upward and 60° downward at the specified contrast-ratio condition. The panel is therefore designed to provide a relatively broad viewing area for an industrial LCD of its generation.

The polarizer surface is clear and has a specified minimum 3H pencil hardness.

Interface and Connector

The NL6448BC33-64R uses a CMOS RGB interface with 6-bit digital data and a 31-pin connector. The signal system includes RGB data together with dot clock, data enable, horizontal synchronization and vertical synchronization signals.

The panel signal-processing board supports a 3.3V or 5.0V supply. The correct voltage configuration should be confirmed against the equipment and the actual panel documentation before applying power.

Before installation, verify:

• Complete 31-pin connector pinout
• RGB signal assignment
• 6-bit RGB configuration
• Dot-clock requirements
• Hsync
• Vsync
• Data-enable signal
• LCD supply voltage
• Connector orientation
• Display timing
• Controller compatibility

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

Backlight

The NL6448BC33-64R uses an edge-light configuration with two CCFL lamps. The technical documentation specifies replaceable lamps and identifies the recommended inverter as 104PW201.

The specified backlight life is approximately 50,000 hours under the applicable conditions. The listed power consumption of the panel is approximately 6.2W, excluding the power consumed by the recommended inverter.

Because this is a CCFL-backlit panel, it should not automatically be replaced with an LED-backlit LCD simply because the newer display has the same screen size and resolution. The backlight driver, voltage and control requirements can be substantially different.

CCFL inverter circuits operate at high voltage, so appropriate precautions are necessary during installation and servicing.

Mechanical Dimensions

The NL6448BC33-64R has an active display area of 211.2 × 158.4 mm. Its specified module dimensions are approximately 243.0 × 185.1 × 11.0 mm maximum, with a typical weight of approximately 475 g.

These dimensions are important when replacing an LCD inside an existing industrial enclosure, HMI housing or equipment chassis.

Before installation, verify:

• Overall width
• Overall height
• Panel thickness
• Active display area
• Bezel opening
• Mounting-hole positions
• Connector location
• CCFL cable routing
• Inverter location
• Rear clearance

Another 10.4-inch 640 × 480 panel may have different mounting dimensions even when its active area and resolution are similar.

Operating Temperature

The NL6448BC33-64R is specified for an operating temperature range of -20°C to +70°C and a storage temperature range of -30°C to +80°C.

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

For equipment operating near the specified temperature limits, the complete display assembly should be evaluated rather than relying only on the LCD panel specification.

Industrial Applications

The NL6448BC33-64R is a legacy 10.4-inch VGA TFT-LCD designed around a CMOS RGB interface and CCFL backlight. Its specifications make it relevant to equipment originally designed around this type of display.

Potential applications include:

• Industrial PCs
• HMI systems
• Industrial control panels
• Control-system display terminals
• CNC machine interfaces
• Factory automation equipment
• Process-controller monitors
• Machine monitoring systems
• Industrial instrumentation
• Embedded computer systems
• Operator terminals
• Measurement equipment
• 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 NL6448BC33-64R 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
• 6-bit RGB configuration
• Dot-clock requirements
• Hsync and Vsync
• Data-enable signal
• LCD supply voltage
• Two-CCFL backlight configuration
• CCFL lamp requirements
• External inverter compatibility
• Backlight wiring
• Controller compatibility
• Operating temperature requirements

The supplied product URL is for NL6448BC33-64D, while the model requested here is NL6448BC33-64R. These suffixes should not be treated as interchangeable without confirming the exact electrical and mechanical specifications. The -64R datasheet identifies a 25 ms response time and -20°C to +70°C operating range, while the supplied -64D listing contains different values for some specifications.

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 NL6448BC33-64R LCD Panel
Brand: NEC
Model: NL6448BC33-64R
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
Backlight: 2 × CCFL, edge light
Backlight Life: Approximately 50,000 hours
Backlight Driver: Recommended external inverter, 104PW201
Operating Temperature: -20°C to +70°C
Storage Temperature: -30°C to +80°C
Touch Screen: Not specified / no integrated touchscreen
Condition: Not specified for exact -64R unit
Warranty: Not specified for exact -64R unit

Handling and Installation Precautions

The NL6448BC33-64R 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 force or tilt the connector during insertion or removal.
• Verify the complete CMOS RGB pinout before applying power.
• Confirm the required 3.3V or 5.0V supply configuration.
• Verify RGB signal mapping and display timing.
• Confirm dot 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 NL6448BC33-64R?

The NEC NL6448BC33-64R is a 10.4-inch color TFT-LCD panel with a 640 × 480 VGA resolution, 6-bit CMOS RGB interface and two-CCFL backlight system.

What is the resolution of the NL6448BC33-64R?

The NL6448BC33-64R has a 640 × 480 pixel VGA resolution.

What is the screen size of the NL6448BC33-64R?

The panel has a 10.4-inch diagonal display with a 211.2 × 158.4 mm active display area.

What type of display is the NL6448BC33-64R?

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

How many colors does the NL6448BC33-64R support?

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

What is the brightness of the NL6448BC33-64R?

The typical luminance is 450 cd/m².

What is the contrast ratio of the NL6448BC33-64R?

The typical contrast ratio is 600:1.

What interface does the NL6448BC33-64R use?

The panel uses a CMOS interface with 6-bit RGB digital signals. It also uses dot clock, data enable and synchronization signals.

How many pins does the NL6448BC33-64R connector have?

The panel uses a 31-pin connector. The complete pinout must be verified before installation.

What type of backlight does the NL6448BC33-64R use?

The panel uses two CCFL lamps in an edge-light configuration. A compatible external inverter is required. The technical documentation recommends the 104PW201 inverter.

What is the backlight life of the NL6448BC33-64R?

The specified backlight life is approximately 50,000 hours under the applicable operating conditions.

Does the NL6448BC33-64R have a touchscreen?

The standard LCD module does not specify an integrated touchscreen. A separate touch panel would need to be evaluated independently if required.

What are the dimensions of the NL6448BC33-64R?

The module is approximately 243.0 × 185.1 × 11.0 mm maximum, with a 211.2 × 158.4 mm active display area.

What is the operating temperature of the NL6448BC33-64R?

The specified operating temperature range is -20°C to +70°C, while the storage temperature range is -30°C to +80°C.

Can the NL6448BC33-64R be used as a replacement LCD?

It can be considered for compatible equipment designed around the NL6448BC33-64R specification. 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.