Compare AUO G121EAN01 4 and G121EAN01 401 by brightness, operating temperature, and 30-pin LVDS connector Check the cable and pinout before choosing a replacement for your 12 1-inch WXGA display
Choose the G121EAN01.4 when the project benefits from higher panel brightness and its operating range of −20 to +70 °C covers the application. Consider the G121EAN01.401 when the equipment needs to operate down to −30 °C or up to +85 °C and 300 cd/m² typical brightness meets the readability requirement. For an existing installation, confirm the connector and cable before approving either model.
Side-by-side specifications
| Selection factor | G121EAN01.4 | G121EAN01.401 |
|---|---|---|
| Screen size and resolution | 12.1 inch, 1280 × 800 WXGA | 12.1 inch, 1280 × 800 WXGA |
| Typical center brightness | 400 cd/m² | 300 cd/m² |
| Minimum center brightness | 320 cd/m² | 225 cd/m² |
| Operating temperature | −20 to +70 °C | −30 to +85 °C |
| Storage temperature | −30 to +80 °C | −30 to +85 °C |
| Typical outline (W × H × D) | 278.0 × 184.0 × 9.29 mm | 278.0 × 184.0 × 9.29 mm |
| Signal interface | 30-pin single-channel LVDS | 30-pin single-channel LVDS |
| Connector part number | Starconn 093G30-B0001A-1 | Starconn 093G30-00001A-M4 |
| Pin 8 | Ground | NC, identified as LCD panel self-test enable in the specification |
| Backlight | Integrated driver, nominal 12 V, PWM dimming | Integrated driver, nominal 12 V, PWM dimming |
Source: AU Optronics and AUO Display Plus final product specifications for the two model suffixes. Center brightness is specified at 25 °C, with 50 mA per LED line for the .4 and 45 mA per LED line for the .401.
Which model fits your application?
For a brighter operator display, start with the G121EAN01.4. Its typical center brightness is 100 cd/m² higher. Check visibility with the actual cover glass, viewing position and ambient lighting.
For a wider operating temperature range, start with the G121EAN01.401. Use the temperature expected around the panel inside the enclosure when selecting the model.
For replacement or repair, start with the full model number on the original label. Both models list the same resolution and typical outline dimensions. Their connector part numbers and pin 8 definitions differ, so check the mating connector, cable wiring, LVDS data format, mounting drawing and backlight controls before testing a sample.
Can I reuse the original cable?
Reuse depends on the exact mating connector and cable wiring. Compare the manufacturer’s pin tables, paying particular attention to pin 8, power, grounds and backlight controls. Validate the panel with the intended controller and cable before production.
Request a model comparison
Send IDT Display a photo of the original model label, the controller or cable part number, your target brightness and operating temperature range. Include the required quantity to confirm the appropriate model, current availability and lead time.
