MicroLED is moving towards the G4.5 glass-based mass production stage, and Yiben Technology assists leading customers in the construction of high-end display manufacturing projects

In the context of a new round of industrial upgrading driven by AI, display technology is ushering in a new development cycle. As display devices continue to evolve towards larger sizes, higher brightness, lower power consumption, longer lifespan and faster response speeds, MicroLED, as an important technology direction for next-generation displays, is constantly expanding the boundaries of industrial application.

In recent years, MicroLED has made breakthrough progress in segmented directions such as wearable displays, vehicle-mounted displays, translucent displays, ADB pixel car lights, and AR microdisplays, and the industry's mass production process has accelerated significantly. At the same time, some leading companies are also accelerating the upgrading of MicroLED production lines and building mass production capabilities, pushing the industry to gradually move from mid-scale pilot verification to the G4.5 glass-based and higher-generation manufacturing stage.

MicroLED panel G2.5 → G4.5 → G6.0 generation evolution diagram

Yibei Technology’s MicroLED AOI equipment already has detection capabilities for G4.5 glass-based application scenarios, and has recently received related project orders from leading industry customers. It will be used in the construction of large-size glass-based MicroLED mass production lines to provide support for key detection and yield management in the high-end display manufacturing process. The advancement of this project reflects the MicroLED industry's exploration trend towards mid-to-high-generation manufacturing, and also puts forward higher requirements for the accuracy, stability, efficiency and data capabilities of testing equipment.

In the manufacturing process of mid-to-high-generation glass-based MicroLEDs, the size of the substrate has expanded, the total number of pixels has increased, and the complexity of the process has increased. The inspection system needs to meet the following core requirements at the same time:

More complex multi-layout and multi-pattern combination compatibility

Higher stability of motion control capabilities

Higher-speed data processing capabilities

Mass production cadence capabilities at higher UPH

Better yield data analysis and closed-loop capabilities

Yiben Technology has been deeply involved in the field of MicroLED testing for a long time, and has continued to invest in epitaxial non-pattern testing, AOI testing and PL testing. Related solutions have been verified and introduced by many head MicroLED customers.

Among them, in the upstream epitaxy and wafer links, Yibei Technology continues to strengthen the detection capabilities of defects and process stability; in the field of MicroLED PL detection, it has long-term service to domestic leading LED chip factories and MicroLED panel factory customers; in the AOI direction, it continues to carry out technology iterations around high precision, high stability and mass production capabilities, and continuously improves detection solutions for MicroLED mid-to-high-generation manufacturing scenarios.

The large-size glass-based MicroLED Panel AOI equipment to be delivered by Yiben Technology

As the MicroLED industry gradually moves towards the mass production stage, the positioning of inspection equipment is evolving from single-point defect detection to a systematic yield management system covering key process links such as epitaxy, wafers, mass transfer and modules. Focusing on future mass production needs, Yiben Technology is continuing to strengthen its four core capabilities: epitaxy and wafer defect detection, high-precision AOI detection, luminous performance detection (PL), data analysis and yield collaboration capabilities, promoting the deep integration of detection data and process optimization, and building a MicroLED full-process inspection solution.

A schematic diagram of the inspection layout of Onefold Technology in the MicroLED process

Next, Onefold Technology will continue to invest in the core aspects of MicroLED mass production and work with industry partners to promote the implementation of large-scale applications of MicroLED.

From pilot trials to mass production, a new stage in the MicroLED industry is accelerating.