Detailed Compatibility Testing and Verification Checklist for G084SAN01.0 and G0
Date:2026-05-28
Detailed Compatibility Testing and Verification Checklist for G084SAN01.0 and G084SN05 V9/V904
1.Compatibility Overview
According to the official Engineering Change Notice (ECN) from AU, G084SAN01.0 is the official upgraded replacement model for G084SN05 V9 and G084SN05 V904. The two are fully compatible in terms of mechanical structure, electrical interfaces, and installation dimensions, and can achieve Direct Replacement.
Core compatibility conclusion
Compatibility item | Conclusion | Explanation |
Overall dimensions | Fully compatible | 203 × 142.5 × 8.0 mm completely consistent |
Display area | Fully compatible | 170.4 × 127.8 mm completely consistent |
Mounting hole | Fully compatible | The four fixed holes on the left and right borders have the same position |
Electrical interface | Fully compatible | LVDS 20-pin， Pin definitions are the same |
Backlight driver | Fully compatible | Including LED driver, with consistent voltage specifications |
software-driven | Fully compatible | Same resolution, same interface, no need to modify |
Display effect | ⬆ Significant upgrade | TN → AHVA full view angle, significantly improving image quality |
2. Compatibility Testing Verification Checklist
2.1 Mechanical compatibility verification
verification project | verification content | G084SN05 V9 specification | G084SAN01.0 specification | Compatibility | Acceptance Criteria |
Overall dimensions | Measure length and width dimensions | 203.0 × 142.5 mm | 203.0 × 142.5 mm | Same | Within a tolerance of ± 0.3mm |
Thickness verification | Measure maximum thickness | 8.0 mm | 8.0 ± 0.3 mm | Same | ≤8.3 mm |
Display area | Check the size of AA area | 170.4 × 127.8 mm | 170.4 × 127.8 mm | Same | exactly the same |
Mounting hole | Check the installation hole position | Four fixing holes on the left and right borders | Four fixing holes on the left and right borders | Same | Consistent position |
FPC position/length | FPC position/length | Standard introduction | Standard introduction | Same | Easy to connect |
Complete machine assembly | Actual installation onto the device casing | - | - | Compatible | No interference, normal fastening |
Weight impact | Weighing comparison | 250 g | TBD | Actual testing is required | Expected difference<10g |
Conclusion: The structure of G084SAN01.0 is completely consistent with G084SN05 V9/V904, and there is no need to modify the structural mold.
2.2 Electrical compatibility verification
Verification project | verification content | G084SN05 V9 specification | G084SAN01.0 specification | Compatibility | Acceptance Criteria |
Signal interface type | Verify the major categories of interfaces | LVDS | LVDS | Same | - |
Number of interface pins | Check the number of pins | 20 pins | 20 pins | Same | - |
Pin definition | Verify the order of signal arrangement | Standard LVDS differential pair | Standard LVDS differential pair | Same | exactly the same |
Input voltage (VDD) | Measure working voltage | 3.3V | 3.3V | Same | 3.3V±5% |
Power-up sequence | Check the power on/off timing sequence | LVDS standard timing | LVDS standard timing | Same | No abnormalities |
Power consumption comparison | Compare the power consumption of new and old models | 2.94W | 2.94W | Actual testing is required | basically the same |
Conclusion: The pin definitions and electrical signals of G084SAN01.0 are completely consistent with the original model, and can be directly used with the original wiring and motherboard.
2.3 Backlight compatibility verification
Verification project | verification content | G084SN05 V9 specification | G084SAN01.0 specification | Compatibility | Acceptance Criteria |
Backlight interface type | Verify connector specifications | Including LED driver | Including LED driver | Same | - |
Backlight voltage | Measure LED driving voltage | - | 10.8 ~ 12.6V | - | meet the specifications |
backlight control | Verify brightness adjustment function | support | support | Same | Adjust smoothness |
Backlight driver | Confirm if integration is possible | integration | integration | Same | - |
Conclusion: The backlight driver specifications are fully compatible, and the original backlight driver circuit can be used directly. The backlight life of G084SAN01.0 has been increased to 70000 hours, which is 40% longer than the original model (50000 hours).
2.4 Display Performance Verification
verification project | verification content | G084SN05 V9 specification | G084SAN01.0 specification | Change | Acceptance Criteria |
Resolution verification | Display test pattern | 800×600 | 800×600 | Same | Full screen normal display |
Brightness test | Measure with a luminance meter | 450 cd/m² | 450 cd/m² | Same | ≥400 cd/m² |
Contrast test | Light dark block contrast test | 600:1 | 1000:1 | ⬆ Increase by 67% | Darker dark field |
Visual angle verification | Observe from all angles, including top, bottom, left, and right | 80°/80°/60°/80° | 89°/89°/89°/89° | ⬆full perspective | From the side, it appears colorless and biased |
Color reproduction | Display RGB solid color and color images | 262K/16.7M | 262K/16.7M (6/8-bit) | Same | Color accuracy |
Response time | Display dynamic images | 30 ms | 15/10 ms | ⬆ enhance | No trailing shadows |
Display mode | Observation in black screen state | Constant white display | Always black display | ⬆ upgrade | Black is darker |
Conclusion: G084SAN01.0 is superior to the original model in terms of viewing angle, contrast, response time, and display mode, while maintaining consistent brightness. The display mode changes from Normally White to Normally Black, with better performance in dark state.
2.5 Software Driver Compatibility Verification
Verification project | verification content | G084SN05 V9 Requirement | G084SAN01.0 Requirement | Compatibility | Acceptance Criteria |
Acceptance Criteria | Use the original driver code to light up | Standard LVDS timing | Standard LVDS timing | Compatible | Normal display |
Resolution configuration | Check display resolution | 800×600 | 800×600 | Same | Full screen display |
Color depth setting | 6-bit vs 8-bit mode | 6/8-bit switchable | 6/8-bit switchable | Same | Can display normally |
Flip Scan | Test horizontal and vertical flipping | support | support | Same | Normal Flip |
Long-term stability | Continuous illumination for 72 hours | - | - | - | No flashing screen, no abnormalities |
Power on | Repeatedly turn on and off the machine 100 times | - | - | - | Display normally every time |
Conclusion: G084SAN01.0 is fully compatible with the original model software and does not require modification of the driver program. 800 × 600 SVGA resolution and 4:3 aspect ratio are classic specifications in the field of industrial automation, and the new screen is directly compatible with the software interface of old devices.
2.6 Environmental Reliability Verification
Verification project | Verification content | G084SN05 V9 Specification | G084SAN01.0 Specification | Change | Acceptance Criteria |
Low temperature operation | Working in an environment of -30 ℃ | Support | Support | Same | No abnormalities within 24 hours |
High-temperature work | Working in an environment of 85 ℃ | 85℃ | 80℃ | ⬇Lower the upper limit by 5 ℃ | No abnormalities within 24 hours |
High and low temperature cycle | -30℃ ↔ 85 ℃ cycle | Support | Support | Same | No display abnormalities |
Storage temperature | Storage at -30-85 ℃ | Support | Support | Same | No physical damage |
Anti vibration test | 1.5G vibration test | 1.5G | 1.5G | Same | No display abnormalities |
Backlight lifespan | Evaluate backlight attenuation | 50,000 hour | 70,000 hour | ⬆ Extend by 40% | meet the specifications |
Key difference reminder: The upper limit of working temperature for G084SAN01.0 has been adjusted from 85 ℃ to 80 ℃. For projects where the equipment operates in extreme high temperature environments of 80 ℃~85 ℃, actual environmental verification is required. In addition, the storage temperature range remains consistent.
2.7 Compatibility verification of external touch screen
For customers who use the integrated solution with touch screen, there are also changes to the touch screen that need to be verified synchronously:
Verification project | Verification content | Old specifications (TTI) | New specifications (AMT) | Compatibility |
Touch type | Resistive/Capacitive | 4-wire resistor | 4-wire resistor | Same |
Transmittance | Pencil hardness test | 82 ± 3% | 82 ± 3% | Same |
Surface hardness | Pencil hardness test | 3H | 3H | Same |
FPC cable length | Measure FPC length | 50mm | 70mm | Increase 20mm |
Touch the effective area | Verify the valid area | 172.21×129.54 mm | 172.21×129.54 mm | Basically the same |
Driver software | Touch calibration test | Original driver | Need to recalibrate | Need to verify |
3.Compatibility Test Summary Table
3.1 Comprehensive Comparison of Parameters
Comparison item | G084SN05 V9 (Original model) | G084SAN01.0 (Upgraded version) | Compatibility | Upgrade Instructions |
Production Status | Discontinued (EOL March 2026) | In mass production (June 2025 MP) | Alternative relationship | Long term supply guarantee |
Size | 8.4inch | 8.4inch | Fully compatible | Same |
Resolution | 800×600 | 800×600 | Fully compatible | Same |
Display technology | TN | AHVA（IPS级） | ⬆ Uupgrade | Core Upgrade |
Brightness | 450 cd/m² | 450 cd/m² | Same | Remain unchanged |
Contrast | 600:1 | 1000:1 | ⬆ Increase by 67% | More diverse levels of visuals |
Viewing angle | 80/80/60/80° | 89/89/89/89° | ⬆Full perspective | From the side, it appears colorless and biased |
Response time | 30 ms | 25 ms | ⬆ Enhance | Dynamic images are smoother |
Display mode | Constant white display | Always black display | ⬆ upgrade | Black is darker |
Interface type | LVDS 20-pin | LVDS 20-pin | Fully compatible | Same |
Operating Temperature | -30~85℃ | -30~80℃ | Lower the upper limit by 5 ℃ | Need to verify high temperature environment |
Storage temperature | -30~85℃ | -30~80℃ | Lower the upper limit by 5 ℃ | Note |
Backlight lifespan | 50,000hour | 70,000hour | ⬆Extend by 40% | Extended maintenance cycle |
Overall dimensions | 203×142.5 mm | 203×142.5 mm | Fully compatible | Same |
Display area | 170.4×127.8 mm | 170.4×127.8 mm | Fully compatible | Same |
Vibration resistance | 1.5G | 1.5G | Same | Same |
3.2 Compatibility Quick Judgment Table
Verify category | Compatibility | Do you need to modify it | Remark |
Mechanical structure | Fully compatible | No need to modify | Consistent size and installation hole position |
PCB hardware | Fully compatible | No need to modify | Interface and pin consistency |
Software-driven | Fully compatible | No need to modify | Same timing and resolution |
Backlight driver | Fully compatible | No need to modify | Including LED driver |
Backlight driver | Significant upgrade | - | Better perspective and contrast |
Operating Temperature | Lower the upper limit by 5 ℃ | Need to verify | 80 ℃ → 85 ℃ decrease |
4.Alternative switching precautions
4.1 No modifications required
✅ Mechanical structure/mold
✅ Motherboard hardware circuit
✅ Software driver program
✅ FPC cable/connector
✅ Install screws/fasteners
✅ Backlight driver circuit
4.2 Verification Items Required
Validation item | Explanation | Countermeasures |
High temperature work verification | The upper limit of working temperature has been reduced from 85 ℃ to 80 ℃ | If the device operates above 80 ℃, it needs to be verified through actual testing or strengthened for heat dissipation |
Power consumption measurement | New model power consumption to be confirmed | Suggest comparing actual measurements |
Weight confirmation | New model weight to be confirmed | If there are strict weight requirements, actual testing is required |
Touch FPC length | FPC increased by 20mm (if applicable) | Confirm the wiring space of the entire machine |
Display mode change | Constant white → Constant black | Dark state performs better, not a problem |
4.3 Special Explanation of Temperature Differences
The working temperature specification of G084SAN01.0 is -30~80 ℃, which is 5 ℃ lower than the upper limit of -30~85 ℃ of the original model G084SN05 V9.
Evaluation suggestion:
Actual operating temperature of measuring equipment: If the internal temperature of your equipment is below 80 ℃, it can be directly replaced
If the device operates at 80 ℃~85 ℃: it is recommended to conduct actual environmental testing or evaluate whether it is necessary to strengthen the heat dissipation design
If the temperature exceeds 85 ℃: This model is not suitable and a higher specification alternative solution needs to be found
5.Switching checklists
Serial number | Stage | validation item |
1 | Preparation phase | Count the current inventory usage of G084SN05 V9/V904 |
2 |
| Apply for G084SAN01.0 sample |
3 |
| Obtain and review the G084SAN01.0 specification sheet |
4 |
| Confirm whether the actual operating temperature of the equipment is ≤ 80 ℃ |
5 | Verification phase | Mechanical dimension verification |
6 |
| Interface compatibility verification |
7 |
| Backlight driver verification |
8 |
| Display performance verification (brightness, contrast, viewing angle) |
9 |
| Software driver verification |
10 |
| High temperature work verification (if applicable) |
11 | Pilot production phase | Small batch trial production of 20-50 units |
12 |
| Production process validation |
13 | Mass production phase | Formally switch to G084SAN01.0 |
Switching time suggestion: The last order date for G084SN05 V904 is May 15, 2025, and the last shipment date is March 31, 2026. It is recommended to complete the switch evaluation and stocking before Q1 2026 to avoid supply chain disruptions.
AU 8.4-inch LCD screen：https://www.auo-lcd.com/products/auo-lcd-screen/8_4inch/
