LG.Philips LB121S02-A2 12.1 Inch TFT LCD Panel

The LG.Philips LB121S02-A2 LCD Panel is a 12.1-inch industrial TFT-LCD module designed for industrial PCs, HMI systems, automation equipment, control panels, instrumentation, medical equipment, and legacy LCD replacement applications. It features an 800 × 600 SVGA resolution with a 4:3 aspect ratio and approximately 82 PPI pixel density.

The panel uses a-Si TFT-LCD technology with TN, normally white, transmissive display mode. It provides a typical brightness of 300 cd/m² and a 200:1 contrast ratio, making it suitable for displaying machine parameters, control information, monitoring data, menus, and graphical interfaces.

The LB121S02-A2 uses a 1-channel, 6-bit Parallel RGB interface through a 41-pin connector and operates from a typical 3.3V supply. It features two CCFL lamps for backlighting with an approximately 50,000-hour backlight life, while the backlight driver is not integrated into the module.

Key Features

·        Brand: LG.Philips

·        Model: LB121S02-A2

·        Display Size: 12.1 inches

·        Panel Technology: a-Si TFT-LCD

·        Resolution: 800 × 600 pixels (SVGA)

·        Pixel Density: Approximately 82 PPI

·        Aspect Ratio: 4:3

·        Display Mode: TN, Normally White, Transmissive

·        Brightness: 300 cd/m² typical

·        Contrast Ratio: 200:1 typical

·        Supported Colors: 262K

·        Color Gamut: Approximately 45% NTSC

·        Viewing Angle: 60/60/40/55° typical

·        Viewing Direction: Landscape

·        Response Time: 20/35 ms (Tr/Td) typical

·        Interface: Parallel RGB, 1 channel, 6-bit

·        Connector: 41-pin

·        Refresh Rate: 60 Hz

·        LCD Supply Voltage: 3.3V typical

·        Backlight: 2 × CCFL

·        Backlight Life: Approximately 50,000 hours

·        Backlight Driver: Not included

·        Surface Treatment: Antiglare, 3H hard coating

·        Active Area: 246 × 184.5 mm

·        Outline Dimensions: 280 × 218 × 11.5 mm

·        Operating Temperature: 0°C to 50°C

·        Storage Temperature: -20°C to 60°C

·        Touch Screen: No

·        Orientation: Landscape

·        Weight: Approximately 675 g

·        Condition: Refurbished

Technical Specifications

The specifications are based on the available LB121S02-A2 product documentation and technical references.

12.1-Inch SVGA Industrial Display

The LG.Philips LB121S02-A2 features a 12.1-inch display with an 800 × 600 SVGA resolution and a traditional 4:3 aspect ratio. Its active display area measures approximately 246 × 184.5 mm, providing a practical viewing area for industrial interfaces, equipment monitoring, and embedded control applications.

The 4:3 format makes this panel suitable for legacy industrial equipment and systems designed around conventional SVGA displays.

300 cd/m² Brightness and 200:1 Contrast

The LB121S02-A2 provides a typical luminance of 300 cd/m² and a 200:1 contrast ratio. These specifications support readable text, graphics, machine parameters, status information, and monitoring interfaces in controlled indoor environments.

The display supports 262K colors with approximately 45% NTSC color coverage, making it suitable for general-purpose graphical and industrial applications where advanced color reproduction is not the primary requirement.

TN Normally White Display Technology

The panel uses TN, normally white, transmissive TFT-LCD technology. Its typical viewing angles are approximately 60° left, 60° right, 40° upward, and 55° downward at CR≥10.

This configuration is suitable for equipment where the LCD is installed in a fixed position and viewed primarily from the front or operator's location.

Antiglare Surface with 3H Hard Coating

The LB121S02-A2 features an antiglare surface with 3H hard coating. The antiglare treatment helps minimize reflections from surrounding light, while the hard coating provides additional protection against surface scratches during handling and normal operation.

This surface treatment is useful for industrial control panels, machine interfaces, and instrumentation equipment.

41-Pin Parallel RGB Interface

The LB121S02-A2 uses a 1-channel, 6-bit Parallel RGB interface with a 41-pin connector. The typical LCD supply voltage is 3.3V, and the specified refresh rate is 60 Hz.

For replacement applications, the connector type alone should not be used to establish compatibility. The complete pin assignment, RGB signal configuration, timing requirements, power supply, and host controller specifications should be verified before installation.

Dual CCFL Backlight

The display uses two CCFL lamps for backlighting, with a specified backlight life of approximately 50,000 hours. The backlight driver is not included in the LCD module.

Because CCFL lamps require suitable high-voltage driving circuitry, the existing inverter or a compatible external CCFL driver must be checked before connecting the panel.

Compact 11.5 mm Panel Design

The LB121S02-A2 has overall dimensions of approximately 280 × 218 × 11.5 mm, while its active display area measures 246 × 184.5 mm. The typical module weight is approximately 675 g.

These dimensions make the display suitable for industrial equipment and embedded systems where enclosure dimensions and mounting space need to be considered.

Operating Temperature Range

The LB121S02-A2 is specified for an operating temperature range of 0°C to 50°C and a storage temperature range of -20°C to 60°C.

The panel should be operated within its specified environmental limits to maintain expected optical and electrical performance.

Industrial Applications

The LG.Philips LB121S02-A2 can be used in applications requiring a 12.1-inch SVGA TFT-LCD with a Parallel RGB interface.

Typical applications include:

·        Industrial PCs

·        HMI systems

·        Industrial control panels

·        Factory automation equipment

·        Machine control interfaces

·        CNC equipment

·        Instrumentation systems

·        Medical equipment

·        Process monitoring systems

·        Manufacturing equipment

·        Embedded display systems

·        Operator control stations

·        Industrial monitoring systems

·        OEM equipment

·        Legacy equipment refurbishment

·        LCD replacement applications

Its 800 × 600 resolution, 4:3 format, and parallel RGB interface make it particularly relevant for older industrial and embedded systems that use legacy display controllers.

Compatibility and Replacement Note

The LG.Philips LB121S02-A2 can be considered for replacement applications where the existing display requires compatible electrical, mechanical, optical, and backlight specifications.

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

·        Exact model and suffix

·        Display dimensions

·        Active display area

·        Mounting arrangement

·        41-pin connector configuration

·        Connector pin assignment

·        Parallel RGB interface

·        6-bit signal configuration

·        LCD supply voltage

·        CCFL lamp configuration

·        External CCFL inverter requirements

·        Display resolution

·        Viewing direction

·        Operating temperature range

A 12.1-inch 800 × 600 LCD is not automatically a direct replacement for the LB121S02-A2. The 41-pin Parallel RGB interface, pinout, CCFL backlight configuration, mechanical dimensions, and electrical specifications should all be verified before installation.

Product Details

Product: LG.Philips LB121S02-A2 LCD Panel
Brand: LG.Philips
Model: LB121S02-A2
Display Size: 12.1 Inch
Resolution: 800 × 600 SVGA
Panel Type: a-Si TFT-LCD
Display Mode: TN, Normally White, Transmissive
Interface: Parallel RGB, 1 channel, 6-bit
Connector: 41-pin
Refresh Rate: 60 Hz
Backlight: 2 × CCFL
Backlight Life: Approximately 50,000 hours
Backlight Driver: Not included
Brightness: 300 cd/m² Typical
Contrast Ratio: 200:1 Typical
Supply Voltage: 3.3V Typical
Surface: Antiglare, 3H Hard Coating
Touch Screen: No
Operating Temperature: 0°C to 50°C
Storage Temperature: -20°C to 60°C
Orientation: Landscape
Weight: Approximately 675 g
Condition: Refurbished

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 force the connector during installation.

·        Verify the Parallel RGB pin configuration before applying power.

·        Confirm the required 3.3V LCD supply before connecting the module.

·        Use a compatible CCFL inverter or backlight driver.

·        Do not connect the CCFL lamps directly to a standard DC power supply.

·        Keep the panel away from water and excessive moisture.

·        Do not drop or impact the LCD module.

·        Do not attempt to modify or disassemble the panel.

·        Follow appropriate ESD precautions when handling the display.

Frequently Asked Questions

What is the LG.Philips LB121S02-A2?

The LG.Philips LB121S02-A2 is a 12.1-inch a-Si TFT-LCD module featuring 800 × 600 SVGA resolution, TN normally white transmissive display technology, and a 1-channel 6-bit Parallel RGB interface.

What is the resolution of LB121S02-A2?

The LB121S02-A2 has an 800 × 600 pixel SVGA resolution with approximately 82 PPI pixel density.

What is the screen size of LB121S02-A2?

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

What is the brightness of LB121S02-A2?

The typical luminance of the LB121S02-A2 is 300 cd/m².

What is the contrast ratio of LB121S02-A2?

The panel has a typical 200:1 contrast ratio.

What interface does the LB121S02-A2 use?

The panel uses a 1-channel, 6-bit Parallel RGB interface through a 41-pin connector.

What is the LCD supply voltage?

The typical LCD supply voltage is 3.3V.

What type of backlight does LB121S02-A2 use?

The display uses two CCFL lamps with an approximately 50,000-hour backlight life. The backlight driver is not included in the module.

Does the LB121S02-A2 have a touch screen?

No. The LB121S02-A2 is an LCD module without an integrated touch screen.

What is the operating temperature of LB121S02-A2?

The specified operating temperature range is 0°C to 50°C, with a storage temperature range of -20°C to 60°C.

What are the dimensions of LB121S02-A2?

The module measures approximately 280 × 218 × 11.5 mm, with an active display area of approximately 246 × 184.5 mm.

Is the LB121S02-A2 new or refurbished?

The product listing identifies the available unit as refurbished.

Can LB121S02-A2 be used as a replacement LCD?

It can be used as a replacement when the equipment requires compatible specifications. Before installation, verify the exact model and suffix, dimensions, 41-pin connector, Parallel RGB interface, pin assignment, 3.3V supply, CCFL backlight configuration, and external inverter requirements.