Mitsubishi AA121SL09 12.1 Inch TFT LCD Display

The Mitsubishi AA121SL09 LCD Display is a 12.1-inch industrial TFT-LCD module designed for industrial equipment, automation systems, machine interfaces, industrial PCs, control panels, and replacement display applications. It features an 800 × 600 SVGA resolution, 4:3 aspect ratio, and a TN normally white transmissive display mode.

The AA121SL09 provides a typical luminance of 400 cd/m² and a 500:1 contrast ratio, supporting 262K colors for clear display of text, graphics, equipment parameters, and control information. Its RGB vertical stripe pixel arrangement and 60 Hz refresh rate provide consistent image reproduction for industrial and embedded display systems.

The display uses a CMOS 1-channel, 6-bit interface with a 41-pin connector and operates at a typical 3.3V LCD supply. It incorporates two CCFL backlights with a rated life of approximately 50,000 hours and does not include a backlight driver.

Key Features

·        Brand: Mitsubishi

·        Model: AA121SL09

·        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

·        Supported Colors: 262K

·        Viewing Angle: 65/65/45/75° typical

·        Response Time: 6/19 ms (Tr/Td) typical

·        Interface: CMOS, 1 channel, 6-bit

·        Connector: 41-pin

·        Refresh Rate: 60 Hz

·        LCD Supply Voltage: 3.3V typical

·        Backlight: 2 × CCFL

·        Backlight Life: 50,000 hours

·        Backlight Driver: Not included

·        Surface Treatment: Antiglare, 3H hard coating

·        Active Area: 246 × 184.5 mm

·        Outline Dimensions: 280 × 210 × 12.5 mm

·        Operating Temperature: -20°C to 70°C

·        Storage Temperature: -20°C to 80°C

·        Weight: Approximately 720 g

·        Touch Screen: No

·        Condition: Refurbished

·        Warranty: 3 Months

Technical Specifications

The specifications above are based on available technical documentation and product specifications for the AA121SL09.

12.1-Inch SVGA Industrial Display

The AA121SL09 features a 12.1-inch diagonal screen with an 800 × 600 SVGA resolution and 4:3 aspect ratio. The approximately 246 × 184.5 mm active area provides a practical display area for industrial interfaces, machine parameters, monitoring information, and control screens.

Its traditional 4:3 format can be particularly useful when replacing displays in older industrial equipment designed around SVGA-resolution panels.

400 cd/m² Brightness and 500:1 Contrast

With a typical luminance of 400 cd/m² and a typical contrast ratio of 500:1, the AA121SL09 is designed to provide clear and consistent image visibility in industrial and professional environments.

The display supports 262K colors and uses an RGB vertical stripe pixel arrangement.

TN Normally White Display Technology

The AA121SL09 uses TN, normally white, transmissive TFT-LCD technology. Its typical viewing angle is specified as 65° left, 65° right, 45° upward, and 75° downward at CR≥10.

The specified optimum viewing direction is 6 o'clock, making installation orientation an important consideration when integrating the panel into existing equipment.

Antiglare and 3H Hard-Coated Surface

The display features an antiglare surface with 3H hard coating. The matte surface treatment helps reduce reflections from ambient lighting, while the hard coating provides additional surface protection during normal use and handling.

This makes the display suitable for control panels and industrial equipment where clear viewing and surface durability are important considerations.

CMOS Interface with 41-Pin Connector

The Mitsubishi AA121SL09 uses a CMOS 1-channel, 6-bit signal interface through a 41-pin connector. The typical LCD supply voltage is 3.3V.

When using the AA121SL09 as a replacement panel, the connector, pin assignment, signal format, timing requirements, and power supply should be checked against the original display system. A matching screen size and resolution alone do not confirm compatibility.

CCFL Backlight System

The AA121SL09 incorporates two CCFL backlight lamps in an edge-light configuration. The lamps are replaceable and have a specified life of approximately 50,000 hours.

The display module does not include a backlight driver or inverter, so the equipment must provide a suitable CCFL driving arrangement for the backlight.

Industrial Applications

The Mitsubishi AA121SL09 is suitable for applications requiring a 12.1-inch 800 × 600 industrial TFT-LCD display.

Typical applications include:

·        Industrial PCs

·        HMI systems

·        Industrial automation equipment

·        Machine control interfaces

·        CNC equipment

·        Factory automation systems

·        Process monitoring systems

·        Control panels

·        Instrumentation equipment

·        Manufacturing equipment

·        Embedded display systems

·        Industrial robots and automation equipment

·        Legacy equipment refurbishment

·        Industrial LCD replacement applications

Compatibility and Replacement Note

The Mitsubishi AA121SL09 may be used for replacement applications where the existing display requires matching electrical, mechanical, and optical specifications.

Before purchasing, compare the following details with the original LCD:

·        Exact model number

·        Screen dimensions

·        Active display area

·        Mounting arrangement

·        Connector type

·        41-pin connector configuration

·        Pin assignment

·        CMOS interface

·        LCD supply voltage

·        Display resolution

·        Backlight type

·        CCFL lamp configuration

·        Backlight inverter requirements

·        Viewing orientation

·        Operating temperature range

A 12.1-inch 800 × 600 LCD is not automatically a direct replacement for the AA121SL09. The complete specifications should be verified before installation.

Product Details

Product: Mitsubishi AA121SL09 LCD Display
Brand: Mitsubishi
Model: AA121SL09
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: Antiglare, 3H hard coating
Touch Screen: No
Condition: Refurbished
Warranty: 3 Months

Handling and Installation Precautions

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

·        Do not apply excessive pressure to the LCD surface.

·        Avoid scratching or damaging the front polarizer.

·        Switch off the equipment before connecting or disconnecting the display.

·        Handle the 41-pin connector carefully.

·        Do not bend, twist, or tilt the connector during insertion or removal.

·        Keep the module away from water and excessive moisture.

·        Do not drop or impact the display.

·        Do not attempt to open or modify the module assembly.

·        Verify the pin configuration and power requirements before applying power.

·        Use a compatible CCFL inverter for the backlight.

·        Follow suitable ESD precautions when handling the panel.

Frequently Asked Questions

What is the Mitsubishi AA121SL09?

The Mitsubishi AA121SL09 is a 12.1-inch a-Si TFT-LCD module with 800 × 600 SVGA resolution, TN normally white transmissive display technology, and a CMOS 1-channel 6-bit interface.

What is the resolution of AA121SL09?

The AA121SL09 has an 800 × 600 pixel SVGA resolution with a 4:3 aspect ratio.

What is the screen size of AA121SL09?

The AA121SL09 has a 12.1-inch diagonal display size with an active area of approximately 246 × 184.5 mm.

What is the brightness of Mitsubishi AA121SL09?

The typical brightness of the AA121SL09 is 400 cd/m².

What interface does the AA121SL09 use?

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

What type of backlight does AA121SL09 use?

The AA121SL09 uses two CCFL backlight lamps with a specified life of approximately 50,000 hours. The backlight driver is not included.

Does the AA121SL09 have a touch screen?

No. The AA121SL09 is a display module without an integrated touch screen.

What is the operating temperature of AA121SL09?

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

Is AA121SL09 suitable for industrial applications?

Yes. The AA121SL09 is an industrial-oriented TFT-LCD panel suitable for industrial PCs, automation systems, HMIs, machine control equipment, instrumentation, and other professional display applications.

Is Mitsubishi AA121SL09 a refurbished LCD?

The product listing identifies this particular unit as refurbished and specifies a 3-month warranty.

Can AA121SL09 be used as a replacement LCD?

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