The LQ121K1LG52 12.1’’ TFT-LCD display module features an active display area of approximately 261.12 × 163.20 mm and a pixel pitch of about 0.20 × 0.20 mm. The module is mainly designed for industrial applications, including industrial control systems, human-machine interfaces (HMI), and professional equipment displays.
What Is the LQ121K1LG52 LCD Module?
Sharp LQ121K1LG52 is a 12.1-inch color active matrix TFT-LCD display module based on amorphous silicon TFT (a-Si TFT) technology. It consists of a TFT-LCD panel, driver ICs, control circuit, power supply circuit, and a white LED backlight unit. The module supports a 1280×RGB×800 (WXGA) resolution and uses an LVDS (Low Voltage Differential Signaling) interface for image data transmission, enabling approximately 16.7 million color display for high-quality graphics and text applications.
The LQ121K1LG52 integrates an LED driver circuit inside the module and operates with a +3.3V DC power supply for TFT-LCD panel driving and backlight operation. It provides stable color performance and optimized grayscale characteristics, with the best viewing direction at the 6 o’clock position. The module is designed for professional display applications requiring reliable image quality and stable operation.
LQ121K1LG52 Mechanical Specifications
The following table provides an overview of the key specifications of the LQ121K1LG52 LCD display module.
Parameter | Value |
Brand | |
Model | LQ121K1LG52 |
Size | 12.1" |
Composition | LCM |
Resolution | 1280(RGB)×800, WXGA 124PPI |
Luminance | 400 cd/m² (Typ.) |
Contrast Ratio | 800 : 1 (Typ.) (TM) |
Viewangle | 80/80/65/80 |
Color Depth | 262K/16.2M 70% NTSC |
Light Source | WLED , 50K hours , With LED Driver |
Interface Type | LVDS (1 ch, 6/8-bit) , 20 pins Connector |
Active Area | 264.3(W)×167.2(H) mm |
Pixel Format | RGB Vertical Stripe |
Frame Rate | 60Hz |
Touchscreen | Without |
Voltage Supply | 3.3V (Typ.) |
Weight | 550g (Typ.) |
Outline Size | 278 × 184 × 9.6 (H×V×D) |
Max Ratings | Operating Temperature: -30 ~ 80 °C ; Storage Temperature: -30 ~ 80 °C |
Display Performance in Professional Equipment
The LQ121K1LG52 industrial display module is optimized for professional equipment, delivering stable display performance for demanding industrial environments.
Wide Viewing Angle for Shared Displays
The display features a wide viewing design that reduces viewing limitations. It is suitable for applications requiring multiple users to view the screen or operators to work from different positions.
Brightness and Readability
The LQ121K1LG52 uses a white LED backlight system to provide stable brightness. It helps reduce the impact of ambient light in industrial environments, ensuring clear visibility of parameters and user interfaces.
RGB Color Structure
The LQ121K1LG52 adopts an RGB stripe pixel structure, combining red (R), green (G), and blue (B) sub-pixels to achieve full-color display with rich and accurate image reproduction.
Transmissive Display Design
The LQ121K1LG52 features a transmissive LCD design that uses a backlight source to provide illumination. The liquid crystal layer controls light transmission to create images, making it suitable for indoor industrial equipment and professional display systems.
Inside the LQ121K1LG52: From LVDS Signal to Image
The LQ121K1LG52 integrates an LVDS signal interface, TFT pixel control, power management circuit, and LED backlight system to convert image data from the main controller into the final display output.
The image transmission process of the LQ121K1LG52 mainly follows:
Main Controller → LVDS → LCD Driver → TFT Panel
The main controller first converts RGB image data into LVDS differential signals, which are then transmitted through the interface to the internal driver circuit of the LCD module.
After receiving the LVDS signals, the internal driver IC processes the image data and controls each pixel unit in the TFT array. By adjusting the voltage status of RGB sub-pixels, the liquid crystal molecules regulate light transmission, enabling the display of images with different brightness levels and colors.
Features and Advantages of LQ121K1LG52
The LQ121K1LG52 LCD display is primarily targeted at industrial‑grade equipment, with its display performance and hardware specially optimized. Below is an overview of its core features and application advantages.
l Provides a wide display area for professional equipment applications.
l Adopts a WLED backlight system, offering stable and uniform illumination.
l Built-in LED driver circuit, simplifying system design and integration.
l Supports a wide operating temperature range of -30°C to 80°C, allowing reliable operation in various industrial environments.
l Backlight lifetime ≥50,000 Hours for long-term equipment operation.
l Supports 6/8-bit color display mode, delivering rich colors and stable image performance.
l Matte surface treatment to improve screen readability by reducing reflections.
l Vibration resistance (Max.1.0G) for applications exposed to mechanical vibration.
LQ121K1LG52 for Industrial HMI
The LQ121K1LG52 can be used as an industrial HMI (Human Machine Interface) display module, helping operators monitor equipment status, adjust parameters, and perform control operations in real time.
1. PLC Control Panels
In PLC control panel applications, the LQ121K1LG52 provides a clear graphical interface, allowing operators to quickly access production equipment information and improve equipment management and maintenance efficiency.
l PLC operation status display
l Equipment parameter setting interface
l Fault alarm information display
2. Industrial Automation Equipment
The LQ121K1LG52 is suitable for operation display terminals in industrial automation equipment, providing intuitive information interaction interfaces for production systems.
l Automation equipment control interface
l Production line operation terminals
l Machine vision auxiliary display interfaces
3. Factory Monitoring Systems
In factory monitoring systems, the LQ121K1LG52 can display production data, equipment operating status, and real-time monitoring information.
l Production data monitoring terminals
l Equipment status display systems
l Industrial real-time monitoring platforms
LQ121K1LG52 in Embedded and Professional Systems
In addition to industrial HMI applications, the LQ121K1LG52 is also suitable for various embedded systems and professional equipment.
1. Medical and Laboratory Equipment
The LQ121K1LG52 can be applied in medical equipment and laboratory instruments to display equipment status, test data, and user operation interfaces.
l Medical testing equipment displays
l Laboratory analysis instrument interfaces
l Equipment status monitoring terminals
2. Test and Measurement Equipment
In test and measurement equipment, the LQ121K1LG52 can display test results, waveform data, and measurement parameters, meeting the data visualization requirements of professional instruments.
l Oscilloscope display modules
l Test instrument interfaces
l Data acquisition terminals
3. Transportation and Control Terminals
The LQ121K1LG52 can also be used in transportation equipment and professional control terminals to provide clear information display. Its wide temperature capability and stable performance allow reliable operation in different environments.
l Transportation control equipment
l Professional operation terminals
l Information display terminals
LQ121K1LG52 Datasheet
You can refer to the official datasheet of Sharp LQ121K1LG52 LCD to see more details:
Outline Dimensions
The outline dimensions of the LQ121K1LG52 LCD panel here to offer essential dimensional references for mechanical design and housing integration.
ANDE Electronics: Reliable LCD Display Solutions
As a professional display supplier, Ande Electronics is committed to providing LCD modules that meet modern application needs.
We offer not only high-quality display products but also reliable technical support and flexible purchasing options. Our experienced engineering team works closely with customers to provide guidance on module selection, integration, and optimization.
Choosing Ande Electronics, then engineers and manufacturers will gain a partner focused on quality, innovation, and efficiency.
