G121S1-L02 Overview
G121S1-L02 is a 12.1'' a-Si TFT-LCD display module introduced by Innolux, positioned for industrial and automotive applications. The module features a native resolution of 800 × 600 (SVGA) and supports MVA display mode, offering a well-balanced performance in terms of contrast ratio, viewing angles, and grayscale characteristics. It supports 262K / 16.2M colors, making it suitable for standard graphic and user interface display requirements.
In terms of interface and mechanical design, the G121S1-L02 adopts a 20-pin single-channel LVDS (1ch-LVDS) interface, providing high compatibility and ease of integration with mainstream industrial control motherboards and embedded platforms. The module is equipped with a white LED backlight system and integrates the LED backlight driver circuit (LED converter built-in), which helps simplify overall system power design.
G121S1-L02 Technical Specifications
Below is a table of common specifications for the G121S1-L02 LCD screen, for reference.
TYPE | DESCRIPTION |
Brand | |
Model | |
Size | |
Composition | a-Si TFT-LCD, LCM |
Resolution | 800(RGB)×600, SVGA 82PPI |
Pixel Format | RGB Vertical Stripe |
Active Area | 246(W)×184.5(H) mm |
Bezel Opening | 249.0(W)×187.5(H) mm |
Outline Size | 260.5(H)×204(V) ×8.9(D) mm |
Brightness | 600 cd/m² (Typ.) |
Contrast Ratio | 1500:1 (Typ.) (TM) |
Viewing Angle | 89/89/89/89 (Typ.)(CR≥10) |
Response Time | 13/12 (Typ.)(Tr/Td) |
Display Colors | 262K/16.2M 50% NTSC |
Lamp Type | WLED , 50K hours , With LED Driver |
Frequency | 60Hz |
Voltage Supply | 3.3/5.0V (Typ.)(VCC) |
Panel Weight | 520/550g (Typ./Max.) |
Signal Interface | LVDS (1 ch, 6/8-bit) , 20 pins Connector |
Touchscreen | Without |
Max Ratings | Operating Temperature:-30 ~ 85 °C ; Storage Temperature: -30 ~ 85°C |
G121S1-L02 Display Features
The G121S1-L02 display features a mature and well-balanced design in terms of display performance and system integration, enabling it to reliably meet the comprehensive requirements for clarity, reliability, and compatibility in industrial and automotive applications. Next, let’s explore its key advantages.
Wide Viewing Angle
By adopting MVA display technology, the G121S1-L02 provides wide viewing angles in both horizontal and vertical directions. Even when viewed from the side or at multiple angles, brightness and color shifts remain well controlled.
High Contrast Ratio
The panel delivers a high contrast ratio with clear differentiation between light and dark areas, helping to improve text sharpness and the readability of graphic details.
SVGA Resolution (800 × 600 pixels)
With a 12.1-inch screen size and a native SVGA resolution of 800 × 600, the display achieves a good balance between visual clarity and system resource efficiency.
DE (Data Enable) Mode
Support for DE mode timing simplifies display control logic and improves compatibility with mainstream display controllers and embedded platforms, making system design and debugging more efficient.
LVDS (Low Voltage Differential Signaling) Interface
The single-channel LVDS interface offers low power consumption, strong noise immunity, and stable data transmission, making it suitable for long-term, continuous industrial operation.
RoHS Compliance
The product complies with RoHS environmental standards, restricting the use of hazardous substances and meeting global requirements for environmental protection and regulatory compliance.
G121S1-L02 Terminal Pin Assignment
Note (1) Connector Part No.: STARCONN 076B20-0048RA-G4 or JAE FI-SEB20P-HFE or equivalent.
Note (2) “Low” stands for 0V. “High” stands for 3.3V. “NC” stands for “No Connected”.
G121S1-L02 for Industrial Applications
The G121S1-L02 display is designed for industrial environments. It is often used in production workshops, providing stable display and precise touch control. Its strong and durable design is scratch-resistant and shockproof, reducing production stops caused by device failure. For example, in automated production lines, the G121S1-L02 can be used as an HMI (Human-Machine Interface) display, allowing workers to clearly monitor machine status and production data.
Besides durability, the G121S1-L02 focuses on user-friendly experience. Its high-definition display and wide viewing angle let users read information easily under different lighting conditions, improving work efficiency. It is widely used in industrial control systems, warehouse management, medical equipment, and energy monitoring. For example, in smart warehouses, staff can check stock in real time and quickly enter data using the screen; in medical equipment, doctors and technicians can operate precisely through the clear interface, improving safety and efficiency.
G121S1-L02 for Automotive Applications
The G121S1-L02 display can work under high temperature, low temperature, vibration, and direct sunlight. Even during long drives or bumpy roads, it still keeps reliable performance. For example, it can be used in in-vehicle infotainment (IVI) systems, allowing drivers to easily check navigation, music, or vehicle status information.
The G121S1-L02 is widely used in car central control screens, rear-seat entertainment systems, and smart instrument panels. For example, in a smart instrument panel, drivers can use the touchscreen to see speed, fuel consumption, and warning information in real time; in rear-seat entertainment systems, passengers can easily play videos or control the air conditioning, making the ride more comfortable.
What to Consider?
Assembly and Handing Precautions
1) Do not apply rough force such as bending or twisting to the module during assembly.
2) To assemble or install module into user's system can be only in clean working areas. The dust and oil
may cause electrical short or worsen the polarizer.
3) It's not permitted to have pressure or impulse on the module because the LCD panel and Backlight
will be damaged.
4) Always follow the correct power sequence when LCD module is connecting and operating. This can
prevent damage to the CMOS LSI chips during latch-up.
5) Do not pull the I/F connector in or out while the module is operating.
6) Do not disassemble the module.
7) Use a soft dry cloth without chemicals for cleaning, because the surface of polarizer is very soft and
easily scratched.
8) It is dangerous that moisture come into or contacted the LCD module, because moisture may damage
LCD module when it is operating.
9) High temperature or humidity may reduce the performance of module. Please store LCD module
within the specified storage conditions.
10) When ambient temperature is lower than 10ºC may reduce the display quality, the response time will
become slowly.
11) Do not keep same pattern in a long period of time. It may cause image sticking on LCD.
Safety Precautions
(1) Do not disassemble the module or insert anything into the Backlight unit.
(2) If the liquid crystal material leaks from the panel, it should be kept away from the eyes or mouth. In
case of contact with hands, skin or clothes, it has to be washed away thoroughly with soap.
(3) After the module’s end of life, it is not harmful in case of normal operation and storage.
FAQs
What is the primary resolution and aspect ratio?
The G121S1-L02 features a Super SVGA (800 × 600) resolution with a 4:3 aspect ratio, which is the standard format for most legacy and modern industrial HMI software.
What type of backlight does it use?
The original G121S1-L02 typically uses a 2-CCFL (Cold Cathode Fluorescent Lamp) system.
Is it compatible with touch screens?
While the G121S1-L02 itself is a non-touch matte panel, its standard 12.1-inch dimensions make it highly compatible with aftermarket 4-wire or 5-wire resistive touch overlays and capacitive touch glass.
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