Mitsubishi AA121SL01 12.1 Inch TFT LCD Module

The Mitsubishi AA121SL01 LCD Module is a 12.1-inch industrial TFT-LCD panel designed for industrial equipment, embedded systems, automation equipment, control interfaces, and display replacement applications. It features an 800 × 600 SVGA resolution, 4:3 aspect ratio, and a normally white TN transmissive display mode.

The AA121SL01 provides a typical brightness of 400 cd/m² and a 500:1 contrast ratio, supporting 262K colors for clear display of text, graphics, machine parameters, and control information. The panel uses an anti-glare surface with 3H hard coating, helping reduce reflections while providing additional surface durability.

The module uses a CMOS 1-channel, 6-bit interface with a 41-pin connector and supports a typical LCD supply voltage of 3.3V or 5.0V. Its backlight consists of two replaceable CCFL lamps, with a specified lamp life of at least 50,000 hours.

Key Features

• Brand: Mitsubishi Electric
• Model: AA121SL01
• Display Size: 12.1 inches
• Panel Technology: a-Si TFT-LCD
• Resolution: 800 × 600 pixels (SVGA)
• Aspect Ratio: 4:3
• Display Mode: TN, Normally White, Transmissive
• Brightness: 400 cd/m² typical
• Contrast Ratio: 500:1 typical
• Display Colors: 262K
• Viewing Angle: 65/65/45/75° typical
• Response Time: 20/30 ms typical
• Interface: CMOS, 1 channel, 6-bit
• Connector: 41-pin
• Refresh Rate: 60 Hz
• LCD Supply Voltage: 3.3/5.0V typical
• Backlight: 2 × CCFL
• Backlight Life: 50,000 hours minimum
• Backlight Type: Edge-light, replaceable
• Surface Treatment: Anti-glare, 3H hard coating
• Active Area: 246 × 184.5 mm
• Module Dimensions: approximately 280 × 210 × 12 mm
• Operating Temperature: -20°C to 70°C
• Storage Temperature: -20°C to 70°C
• Pixel Configuration: RGB vertical stripe
• Viewing Direction: 6 o'clock
• Touch Screen: Without touch screen

Technical Specifications

Specifications can vary slightly between published references, particularly module mass and dimensional depth. Verify the exact unit and applicable datasheet before installation.

12.1-Inch SVGA Industrial Display

The Mitsubishi AA121SL01 features a 12.1-inch diagonal display with 800 × 600 SVGA resolution. Its 4:3 format makes it suitable for equipment designed around traditional industrial display dimensions and legacy SVGA interfaces.

The active display area measures approximately 246 × 184.5 mm, providing sufficient screen space for control menus, machine parameters, monitoring information, charts, and graphical interfaces.

400 cd/m² Brightness and 500:1 Contrast

With a typical brightness of 400 cd/m² and a typical contrast ratio of 500:1, the AA121SL01 provides practical image visibility for industrial and embedded display applications.

The panel supports 262K colors and uses an RGB vertical stripe pixel arrangement for displaying text, graphics, status information, and other interface elements.

TN Normally White Display

The AA121SL01 uses a TN normally white transmissive display mode. It has a typical viewing angle specification of 65° left, 65° right, 45° upward, and 75° downward at CR≥10.

The specified optimum viewing direction is 6 o'clock, making the panel suitable for installations where the display is viewed primarily from its intended orientation.

Anti-Glare Surface with 3H Hard Coating

The display features an anti-glare surface treatment combined with a 3H hard coating. This surface finish helps reduce reflections from surrounding light sources and provides additional resistance to surface scratching during normal handling and use.

This can be beneficial for industrial control panels and equipment where displays may be exposed to varying indoor lighting conditions.

CMOS Interface and 41-Pin Connector

The Mitsubishi AA121SL01 uses a CMOS 1-channel, 6-bit interface with a 41-pin connector. The LCD supply voltage is specified as 3.3V or 5.0V typical.

For replacement applications, the connector and pin configuration should be carefully checked against the existing display system. Matching the display size and resolution alone does not guarantee electrical compatibility.

Replaceable CCFL Backlight

The AA121SL01 uses two CCFL lamps in an edge-light configuration. The backlight is designed to be replaceable and has a specified lamp life of at least 50,000 hours.

The module does not include a backlight inverter/driver, so the host equipment must provide a compatible CCFL driving system.

Industrial Applications

The Mitsubishi AA121SL01 can be used in equipment and systems requiring a 12.1-inch 800 × 600 industrial TFT display.

Typical applications include:

• Industrial automation equipment
• Industrial PCs
• HMI systems
• Machine control interfaces
• CNC equipment
• Factory automation systems
• Process monitoring equipment
• Instrumentation systems
• Control panels
• Embedded display systems
• Manufacturing equipment
• Legacy equipment refurbishment
• Industrial LCD replacement applications

The technical documentation identifies industrial equipment and industrial robots among the intended application areas.

Compatibility and Replacement Note

The Mitsubishi AA121SL01 can be considered for replacement applications where the original display requires matching electrical and mechanical specifications.

Before ordering, compare the following details with the existing LCD:

• Exact model number
• Display dimensions
• Active area
• Mounting holes and brackets
• Connector type
• 41-pin connector configuration
• Pin assignment
• CMOS signal interface
• LCD supply voltage
• Backlight type
• CCFL lamp configuration
• Backlight inverter requirements
• Resolution
• Viewing orientation
• Operating temperature

A 12.1-inch 800 × 600 display is not automatically a direct replacement for the AA121SL01. The complete electrical, mechanical, and backlight specifications should be checked before installation.

Product Details

Product: Mitsubishi AA121SL01 LCD Module
Brand: Mitsubishi Electric
Model: AA121SL01
Display Size: 12.1 Inch
Resolution: 800 × 600 SVGA
Panel Type: a-Si TFT-LCD
Display Mode: TN, Normally White, Transmissive
Interface: CMOS, 1 channel, 6-bit
Connector: 41-pin
Backlight: 2 × CCFL
Backlight Life: ≥50,000 hours
Surface: Anti-glare, 3H hard coating
Touch Screen: No

Handling and Installation Precautions

LCD modules are sensitive electronic components and should be handled carefully during installation and transportation.

• Do not apply excessive pressure to the LCD surface.
• Avoid scratching or damaging the polarizer.
• Switch off the equipment before connecting or disconnecting the LCD.
• Handle the 41-pin connector carefully.
• Do not bend or twist the connector or FPC.
• Avoid exposing the module to water or excessive moisture.
• Do not drop or impact the panel.
• Do not attempt to modify or disassemble the LCD module.
• Verify the pin configuration and power requirements before applying power.
• Use a suitable CCFL inverter for the backlight system.
• Follow appropriate ESD precautions when handling the display.

Frequently Asked Questions

What is the Mitsubishi AA121SL01?

The Mitsubishi AA121SL01 is a 12.1-inch a-Si TFT-LCD module featuring 800 × 600 SVGA resolution, TN normally white transmissive display technology, and a CMOS 1-channel 6-bit interface.

What is the resolution of AA121SL01?

The Mitsubishi AA121SL01 has an 800 × 600 pixel SVGA resolution with a 4:3 aspect ratio.

What is the screen size of the AA121SL01?

The AA121SL01 has a 12.1-inch diagonal display size with an active area of approximately 246 × 184.5 mm.

What is the brightness of Mitsubishi AA121SL01?

The typical brightness of the AA121SL01 is 400 cd/m².

What interface does AA121SL01 use?

The panel uses a CMOS 1-channel, 6-bit interface with a 41-pin connector.

What type of backlight does the AA121SL01 use?

The AA121SL01 uses two CCFL lamps in an edge-light configuration. The lamps are replaceable and have a specified life of at least 50,000 hours.

Does the AA121SL01 include a backlight driver?

No. The technical documentation specifies that the backlight inverter is not included with the module. A compatible CCFL inverter/driver is required for the backlight system.

What is the operating temperature of AA121SL01?

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

Does Mitsubishi AA121SL01 have a touch screen?

No. The AA121SL01 is a display module without an integrated touch screen.

Is AA121SL01 suitable for industrial applications?

Yes. The AA121SL01 is an industrial-oriented TFT-LCD module suitable for applications such as industrial PCs, automation equipment, HMIs, machine control systems, instrumentation, and legacy equipment replacement.

Can AA121SL01 be used as a replacement LCD?

It can be used as a replacement when the existing system requires the same or compatible display specifications. Before installation, verify the model number, dimensions, mounting arrangement, 41-pin connector, pin configuration, signal interface, power requirements, and CCFL backlight requirements.