G121XN01 V0 is a 12.1-inch diagonal a-Si TFT-LCD display from AUO. This product combines a TFT-LCD display module, driver and power circuits, and a replaceable LED backlight system. G121XN01 V0 supports XGA resolution (1024(H) × 768(V)) and can show 16.2M colors (RGB 8-bit) or 262k colors (RGB 6-bit), giving users rich and clear visuals.
The display comes with an LED driving board, and the backlight unit can be replaced, which helps extend its lifetime. All input signals use an LVDS interface. It is fully compatible with G121SN01 V3 and G121SN01 V4, making it easy to upgrade or replace in industrial equipment.
This article aims to introduce the main specifications, advantages, disadvantages, applications, and precautions of G121XN01 V0. It provides a reference for purchasing engineers and industrial designers to better understand this display.
G121XN01 V0 Key Specs
When choosing an industrial display screen, understanding its key specifications is crucial. The G121XN01 V0 boasts a range of high-performance parameters, and these specifications directly determine its performance in different application scenarios.
Parameter | Value |
Brand | |
Model | G121XN01 V0 |
Size | 12.1" |
Composition | LCM |
Resolution | 1024(2)×768(2), XGA 105PPI |
Luminance | 500 cd/m² (Typ.) |
Contrast Ratio | 700:1 (Typ.) (TM) |
Viewangle | 80/80/80/80 |
Color Depth | 262K/16.2M 70% NTSC |
Light Source | 9S2P WLED , 50K hours , With LED Driver |
Interface Type | LVDS (1 ch, 6/8-bit) , 20 pins Connector |
Pixel Format | RGBW Rectangle |
Active Area | 250.8(W)×189.4(H) mm |
Frame Rate | 60Hz |
Touchscreen | Without |
Voltage Supply | 3.3V (Typ.) |
Weight | 495g (Max.) |
Outline Size | 279(W)×209(H) ×9(D) mm |
Max Ratings | Operating Temperature: -30 ~ 85 °C ; Storage Temperature: -30 ~ 85 °C |
Learn more details: G121XN01 V0 Datasheet PDF
G121XN01 V0 Interface Signal Description
The interface signal design of G121XN01 V0 directly affects how the display connects and communicates with the main control system. Understanding the function of each signal pin helps ensure correct wiring in real applications. Next, we will explain the main interface signals of G121XN01 V0 in detail.
1. VDD: Power Supply, 3.3V (typical)
2. VDD: Power Supply, 3.3V (typical)
3. GND: Ground
4. SEL68: 6/ 8bits LVDS data input selection [H: 8bits L/NC: 6bit] *Note4
5. RIN0-: LVDS receiver signal channel 0
6. RIN0+: LVDS Differential Data Input (R0, R1, R2, R3, R4, R5, G0)
7. GND: Ground
8. RIN1-: LVDS receiver signal channel 1
9. RIN1+: LVDS Differential Data Input (G1, G2, G3, G4, G5, B0, B1)
10. GND: Ground
11. RIN2-: LVDS receiver signal channel 2
12. RIN2+: LVDS Differential Data Input (B2, B3, B4, B5, HS, VS, DE)
13. GND: Ground
14. CLKIN: LVDS receiver signal clock
15. CLKIN+: LVDS receiver signal clock
16. GND: Ground
17. RIN3-: LVDS receiver signal channel 3, NC for 6 bit LVDS Input. *Note5
18. RIN3+: LVDS Differential Data Input (R6, R7, G6, G7, B6, B7, RSV)
19. RSV: Reverse Scan Function [H: Enable; L/NC: Disable]
20. NC/GND: Reserved for AUO internal test. Please treat it as NC.
G121XN01 V0 Pros and Cons
When choosing a display, it is very important to get its pros and cons. The G121XN01 V0 LCD screen has clear advantages, but it also has some limitations that need attention during use. By knowing these pros and cons, users can better evaluate whether it fits their project needs.
Pros
l Wide operating temperature range (typically -30°C ~ 85°C).
l Brightness reaches 500 cd/m² or higher.
l Backlight lifespan (MTTF) reaches 50,000 hours.
l Supports 16.2M (8-bit) colors with good color gamut coverage.
l Uses a common single-channel LVDS interface protocol.
l Excellent compatibility with most embedded motherboards and driver boards on the market.
l Long product lifecycle, suitable for OEM projects requiring long-term supply.
l Utilizes TN normally white mode optimization technology, providing a relatively wide viewing angle in both horizontal and vertical directions.
Cons
l Image reversal may occur when viewed from certain angles (usually the vertical direction).
l TFT-LCD module thickness and bezel width are relatively large.
l Does not include touchscreen functionality.
G121XN01 V0 Functional Block Diagram
This functional block diagram shows the main signal and power flow inside the G121XN01 V0 display. The LVDS signal first enters the LVDS receiver through Connector 1, then is processed by the Panel Controller and sent to the TFT-LCD panel for image display. At the same time, DC power is supplied to the Panel Controller and Source Driver IC via the DC/DC converter, and the Gamma correction circuit optimizes the display brightness and color.
The backlight is controlled by a separate LED driver circuit. DC power enters the LED driver through Connector 2 and is then output to the LED light bar via Connector 3, providing screen backlighting.
G121XN01 V0 Typical Applications
Because the G121XN01 V0 LCD display is durable, bright, and moderately sized, you can find it in many industrial and medical devices. It mainly provides critical data and user interfaces in different working environments.
1. Industrial Control Panels
G121XN01 V0 can serve as a display interface for industrial equipment, showing operating parameters, real-time data, and alert information.
l Control cabinets in automated production lines
l CNC machine displays
2. Industrial Embedded Devices
With its wide temperature range and durability, G121XN01 V0 is suitable for integration into various industrial devices. It can provide real-time monitoring and control display even in harsh environments.
l Traffic signal controllers
l Energy management systems
l Factory automation terminals
3. Instruments and Test Equipment
G121XN01 V0 can display high-precision charts, curves, and measurement data, improving visualization for laboratory or industrial testing.
l Power monitoring equipment
l Environmental testing instruments
l Laboratory testing devices
4. Human-Machine Interface (HMI) Systems
The G121XN01 V0 display can act as the core unit in HMI systems, providing operation menus, charts, and visual control buttons for easy interaction.
l Automated warehouse systems
l Robot control systems
5. Medical Device Displays
This display can clearly show critical data and control interfaces in medical equipment, helping healthcare staff monitor heart rate, blood pressure, or lab results in real time.
l Patient monitors
l Blood analysis devices
l Ultrasound machines
Operating Precautions
1. Avoid scratching the front polarizer.
2. Power off before connecting or disconnecting.
3. Remove water immediately to prevent stains.
4. Clean with soft cloth or absorbent cotton only.
5. Glass panel is fragile—avoid drops or impacts.
6. Ground yourself to prevent ESD damage.
7. Do not open or modify the module.
8. Do not press the rear reflector sheet.
9. When repacking, press LED bar edges gently, not the center.
10. Do not tilt or rotate the signal connector during insertion/removal.
11. Do not twist or bend the module; avoid external force.
12. Use a Limited Power Source (IEC60950 / UL1950 compliant).
13. Extreme temperatures affect brightness and response time.
14. Long operation at low temperature reduces lamp life and luminance.
15. Specs apply when used in landscape orientation.
16. Avoid static images; use screen saver or change content regularly.
ANDE Electronics: Reliable LCD Display Solutions
AUO G121XN01 V0 has excellent industrial durability, a wide operating temperature range, and a long-life backlight. It is a top choice for industrial control, medical monitoring, and similar fields. You can buy high-quality G121XN01 V0 displays at Ande Electronics.
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 e
