What Is The NL8060BC31-27 LCD Module?
NL8060BC31-27 is a 12.1-inch TFT-LCD module developed by NEC. It uses a-Si thin-film transistor technology and features an 800×600 SVGA resolution with a 4:3 aspect ratio. The module supports 262K colors and offers a typical brightness of 400 cd/m².
The NL8060BC31-27 features TN display technology and a normally white display mode. It uses two CCFL (Cold Cathode Fluorescent Lamp) tubes for backlighting and is equipped with a CMOS parallel interface that supports 6-bit RGB data transmission. Its operating temperature range is -10°C to 70°C, allowing it to operate across a range of industrial environmental conditions.
Structure and Working Principle
Color LCD module NL8060BC31-27 is composed of the amorphous silicon thin film transistor liquid crystal display (a-Si TFT LCD) panel structure with driver LSIs for driving the TFT (Thin Film Transistor) array and a backlight.
The a-Si TFT LCD panel structure injects liquid crystal material into a narrow gap between the TFT array glass substrate and a color-filter glass substrate. Color (Red, Green, Blue) data signals from a host system (e.g. PC, signal generator, etc.) are modulated into the best form for an active matrix system by a signal processing circuit, and sent to the driver LSIs which drive the individual TFT arrays.
The TFT array as an electro-optical switch, regulates the amount of transmitted light from the backlight assembly when it is controlled by data signals. Color images are created by regulating the amount of transmitted light through the TFT array of red, green and blue dots.
Technical Specifications Overview
The table below highlights the technical specifications of the NL8060BC31-27.
TYPE | DESCRIPTION |
Brand | |
Model | NL8060BC31-27 |
Size | |
Composition | LCM |
Resolution | 800(RGB)×600, SVGA 82PPI |
Luminance | 400 cd/m² (Typ.) |
Contrast Ratio | 600 : 1 (Typ.) (TM) |
Viewangle | 70/70/45/55 |
Color Depth | 262K 40% NTSC |
Light Source | 2 pcs CCFL , Without Driver |
Interface Type | CMOS (1 ch, 6-bit) , 41 pins Connector |
Pixel Format | RGB Vertical Stripe |
Active Area | 249.0(W)×187.5(H) mm |
Frame Rate | 60Hz |
Touchscreen | Without |
Voltage Supply | 3.3/5.0V (Typ.) |
Weight | 740/770g (Typ./Max.) |
Outline Size | 280(W)×210(H) ×13.7(D) mm |
Outline Size | 280(W)×210(H) ×13.7(D) mm |
Max Ratings | Operating Temperature:-10 ~ 70 °C ; Storage Temperature: -20 ~ 80 °C |
Key Features
The display technology, backlight structure, and interface design of the NL8060BC31-27 TFT-LCD module support consistent visual performance and integration into compatible electronic systems.
l High Luminance: Provides bright and clear image output for better visibility.
l High Contrast: Delivers clear image details with good distinction between bright and dark areas.
l Wide Viewing Angle: Maintains good image visibility from different viewing directions.
l Wide Temperature Range: Supports reliable operation across a broad range of ambient temperatures.
l 6-bit Digital RGB Signals: Supports 6-bit digital RGB signal input for color image display.
l Reversible Scan Direction: Allows the display scan direction to be reversed for flexible system integration.
l Edge-Lit Backlight: Uses an edge-light backlight structure without a built-in inverter.
l Replaceable Backlight Lamp: The backlight lamp can be replaced for easier maintenance and longer service life.
Dual CCFL Backlight System
A Cold Cathode Fluorescent Lamp (CCFL) is a type of fluorescent light source commonly used as a backlight in traditional LCD displays. It generates light through a gas discharge inside a fluorescent tube, producing ultraviolet light that excites the phosphor coating on the inner wall of the tube and creates visible light.
The NL8060BC31-27 uses a dual-CCFL backlight structure with two fluorescent lamps. The lamps are arranged along the edge of the LCD module to provide edge-light illumination. Light is distributed through the optical structure of the module to illuminate the display area evenly.
CCFL lamps require high-voltage AC power to operate. A CCFL inverter converts the input power into the required high-voltage AC output and controls the electrical conditions needed to start and maintain the lamp discharge. For the NL8060BC31-27, the recommended inverter model is 121PW181, while the corresponding lamp assembly is 121LHS18.
CCFL vs. LED Backlight
Comparison | CCFL Backlight | LED Backlight |
Light Source | Fluorescent lamps | LED chips |
Driving Method | High-voltage AC inverter | LED driver |
Power Efficiency | Generally lower | Generally higher |
Warm-Up | May require warm-up | Instant-on |
Maintenance | Lamp replacement | LED module replacement |
Functional Block Diagram
The NL8060BC31-27 module mainly consists of a signal processing board, an LCD panel, and a backlight system. The RGB data and timing signals from the host are processed by the internal controller and then sent to the H-driver and V-driver to drive the 800 × 600 LCD matrix. The onboard DC/DC converter supplies power to the control and driver circuits, while the backlight system uses an inverter to drive the dual CCFL lamps as the light source.
Applications Fields of NL8060BC31-27
The NL8060BC31-27 is primarily designed for industrial display applications, providing clear and reliable image display for industrial equipment.
1. Industrial Automation and Control Systems
The NL8060BC31-27 can be used in industrial automation equipment to display operating parameters, production status, and control information.
l Industrial automation controllers
l Production line control interfaces
2. Industrial PCs and Embedded Systems
The module can serve as a display component in industrial computers and embedded systems. It provides a visual interface for system operation, data monitoring, and equipment management in industrial environments.
l Industrial PCs
l Embedded control computers
l Machine interface terminals
3. Measurement and Testing Instruments
The NL8060BC31-27 can be integrated into industrial measurement and testing equipment to present measurement results, operating data, and system status.
l Digital oscilloscopes
l Electronic testing instruments
l Industrial measurement devices
4. Industrial Monitoring Equipment
The module can be used in monitoring systems to display real-time operating information, equipment status, and process data. It helps operators observe system conditions and identify potential abnormalities.
l Industrial monitoring panels
l Power system monitoring devices
l Equipment status displays
NL8060BC31-27 vs. NL8060BC31-27D
The NEC NL8060BC31-27 and NL8060BC31-27D are both 12.1'' TFT-LCD modules with an 800 × 600 SVGA resolution. They share most of their core display specifications and technical characteristics. The main difference is the polarizer surface treatment: the NL8060BC31-27 features a clear surface, while the NL8060BC31-27D uses an anti-glare surface to reduce reflections.
The key distinction is the polarizer surface treatment:
l NL8060BC31-27 (Clear): Features a clear polarizer surface that provides a smoother, more transparent appearance. It is suitable for environments where screen reflections are less of a concern.
l NL8060BC31-27D (Anti-glare): Uses an anti-glare surface treatment to diffuse reflected light and reduce visible reflections, making it more suitable for environments with ambient lighting or potential glare.
NL8060BC31-27 Datasheet
Mechanical Design and Dimension Details
Handling Considerations
1) Hold both ends of the module when removing it from the packaging. Avoid touching or pressing the circuit board cover.
2) Do not pull, hook, bend, or twist connection cables, especially the lamp cable near its rubber holder.
3) When temporarily setting the module down, place it on a flat surface with the display facing downward.
4) Use appropriate electrostatic discharge protection, such as grounding straps and ionizers.
5) Mounting screw torque must not exceed 0.294 Nm to prevent bezel distortion.
6) Use the designated mounting holes. Do not bend, twist, or apply excessive pressure to other parts of the module, as this may cause display unevenness.
7) Avoid pressing or rubbing the panel. Use a soft cloth and an LCD-compatible screen cleaner when cleaning.
8) Do not connect or disconnect interface cables while the module is powered on.
9) Keep the lamp cable away from direct contact with metal parts to prevent leakage current and backlight abnormalities.
10) Properly connect the module's FG to the equipment ground to help prevent inverter noise from causing screen interference.
11) Keep the original surface protection sheet on the polarizer during handling when possible. Avoid adhesive protection films that may affect its color or properties.
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