Colorlight Mica production line automated inspection: lighting up the macro Micro LED display

The development of Micro LED display technology is pushing LED direct display large screens into the era of "extreme parameters": including the limit pitch of point spacing exceeding 0.6mm macro pitch, the limit of pixel size per square meter of screen area, and the extreme demand for image quality performance in high-quality audio-visual applications... LED displays are increasingly becoming an "artistic creation" that pursues ultimate perfection from manufacturing to on-site engineering.

Nearly stringent quality requirements, especially in advanced packaging fields such as flip-chip COB and MIP-GOB, how to "efficiently" conquer the technical barriers of light mixing, light splitting, color separation, ink color sorting, as well as defect discovery and repair, to ensure the uniformity and consistency of screen display, have become the key to industry development and quality growth. Colorlight's Mica production line automated correction solution, as well as advanced correction tools based on AI and artificial vision technology, are becoming the key engine to drive the "extreme" manufacturing upgrade of LED displays.

The pain of extreme times: not only consistency, but also an efficiency challenge

In the past 3 years, COB (Chip on Board) packaging technology has quickly become the mainstream choice for micro-pitch LED displays (especially dot pitches P1.2 and below) with its advantages such as high reliability, seamless splicing, and excellent protection, and the market growth has doubled continuously. However, panelized packages such as COB or GOB, while having experience advantages, also face significant challenges:

For example, there are the problems of ink color consistency, light mixing and spectroscopic color separation - a large number of chips are densely arranged, and their inherent small differences in brightness (Lv) and chromaticity (x, y) will be significantly amplified when viewed at close range. Micro-pitch LED products are increasingly being used at closer viewing distances. The dot spacing becomes smaller, the clarity is enhanced, and the viewing distance is closer, making it easier for the naked eye to detect display defects. At the same time, ultra-high-definition content such as 4K has higher requirements for display quality, and virtual simulations or high-end conferences have higher requirements for picture perfection - traditional Sampling inspection or manual visual sorting methods can no longer meet market demand.

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More importantly, as the point spacing shrinks, even a 150-inch screen size may be a single screen with 4K resolution and 24 million+ The number of LED crystal particles. This requires the efficiency and accuracy of consistent sorting to be greatly improved in order to adapt to new product application requirements. ——Speed and accuracy are the lifeblood of the production line inspection system.

Kalet’s profound insight Industry pain points, relying on nearly two decades of technology accumulation in the field of LED display correction, innovatively launched the Mica production line automated correction and ink color sorting solution. This solution is not a single device, but a complete ecosystem that deeply integrates hardware, software, algorithms and intelligent management, providing a one-stop "intelligent inspection" solution for COB, GOB and even wider LED display manufacturing. <p style='box-sizing: border-box; margin: 0px 0px 20px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternat