Product Engineering Change Notice for 10.4-inch TFT-LCD Module in G104XVN01 EC N
G104XVN01 0 Engineering Change (EC) Notice This change is not a simple parameter adjustment, but a systematic upgrade involving core display technology, key components, and electrical specifications
Product Engineering Change Notice for 10.4-inch TFT-LCD Module in G104XVN01 EC Notice-Add RA Results
Technology Upgrade and Supply Chain Optimization: In Depth Analysis of G104XVN01 Module Changes
Release date: June 25th, 2026
Recently, AUO Display Plus issued an Engineering Change (EC) notice for its 10.4-inch industrial grade TFT-LCD module (model G104XVN01.0). This change is not a simple parameter adjustment, but a systematic upgrade involving core display technology, key components, and electrical specifications, aimed at improving product performance and optimizing supply chain stability.
1.Change core: Display technology iteration
The most significant change in this upgrade is the change in display mode. The prototype adopts PSA (Polymer Stabilized Vertical Alignment) technology, while the new version will fully introduce AHVA (Advanced Hyperview Vertical Alignment) technology. AHVA is a high-tech wide-angle technology independently developed by AU, which has high transmittance, high contrast, and low color cast characteristics comparable to IPS technology. This transformation means that new products will be more competitive in color reproduction and wide-angle viewing experience, especially suitable for industrial control, medical imaging, and automotive display fields that require strict image quality.
2. Adjustment of key parameters and physical specifications
According to the specification comparison on page 3 of the document, the modified module has been redefined in the following dimensions:
Thickness increase: The physical thickness of the module has increased from 6.5mm (Typ.) to 6.7mm (Typ.), which is due to the replacement of the backlight unit (BLU) and PCBA.
Relaxation of weight limit: The weight specification has been adjusted from Typ. 295g to Max. 295g, clarifying the absolute boundary and providing more accurate tolerance reference for structural design.
Power consumption to be determined: The original typical power consumption was 6.0W, but it is marked as TBD (to be determined) in the new version of the document, indicating that the power consumption characteristics of the new driver IC and backlight combination need to be verified through actual samples.
3.Changes in electrical and optical performance
Tightening of electrical specifications: The range of logic/LCD driving voltage (VDD) has been narrowed from ± 0.3V (3.1~3.5V) to ± 0.3V (3.0~3.6V), which places higher demands on the stability of the system power supply. Meanwhile, the input current and power consumption indicators are tentatively set as TBD.
Redefinition of optical performance:
Contrast: The minimum value has decreased from 2500 to 1000, which may be due to physical differences in dark brightness control between AHVA mode and PSA mode. A comprehensive evaluation should be conducted based on actual backlight matching.
Response time: The new specifications separately list the rising (Rising), falling (Falling), and total (Rising+Falling) times, which are 15ms, 10ms, and 25ms respectively, providing a clearer definition of the drag control capability for dynamic images.
4. Connectors and Supply Chain Restructuring
To accommodate the new driver IC and PCBA layout, the connector interface has been changed:
Signal connector (CN1): Added compatibility supplier P-TWO (part number 187007-30091-17), forming a dual source supply with the original JAE.
LED driver connector (CN2): The manufacturer has replaced ENTERY with STM, and the corresponding part number has been changed from 3808K-F05N-02R to MSB24038P5D.
LED light strip connector (CN3): synchronously updated to the MSB24038P3D series of STM.
5. Project implementation pace
According to the document schedule, this change will officially enter the phase in stage of mass production in July 2023. Prior to this, sample delivery (January 2023) and reliability testing (RA Test, February 2023) have been completed in sequence. We are currently in the final stage of customer approval.
Conclusion
The EC change of G104XVN01 is essentially an organic combination of display technology upgrade (PSA → AHVA) and supply chain risk management (connector diversification). Although some electrical indicators are still in TBD state and physical dimensions are being fine tuned, the introduction of AHVA technology will undoubtedly significantly improve display quality. It is recommended that end customers pay close attention to the compatibility of the new module thickness increase with the overall structure, and complete the on-board verification of the new electrical specifications as soon as possible.
AU 10.4-inch LCD screen：https://www.idtdisplay.com/products/AUO_LCD_Displays/10-4inch/
