Micro LED Display Fluidic Self-Assembly and Wafer Bonding

The patent combines multiple color micro LEDs (red, green, blue) into integrated pixel elements that are transferred and assembled together as single units. This merging approach simplifies the manufacturing process by reducing the number of separate transfer operations needed, thereby improving productivity while maintaining high manufacturing yield through coordinated assembly of complete pixel elements.

The patent employs a universal transfer and assembly system that can handle multiple color micro LEDs and pixel elements through a single integrated process. The methodology provides multi-functional capabilities for transferring, aligning, and bonding different types of micro LED components, improving manufacturing efficiency without compromising yield through specialized dedicated processes for each color.

The patent implements self-aligned transfer and assembly processes where micro LEDs and pixel elements automatically position themselves through the bonding methodology. This self-service approach reduces the need for complex external alignment equipment and manual intervention, lowering manufacturing costs while minimizing energy consumption through automated self-organizing mechanisms.

The patent replaces traditional mechanical alignment and bonding systems with advanced bonding techniques that reduce reliance on complex mechanical positioning equipment. This substitution lowers manufacturing costs by simplifying equipment requirements and reduces power consumption by eliminating energy-intensive mechanical alignment processes.

The patent employs preliminary preparation of micro LEDs and pixel elements with pre-defined bonding interfaces and alignment features before the actual assembly process. This preliminary action ensures that when assembly occurs, high precision alignment is achieved automatically through the pre-prepared structures, improving manufacturing yield without requiring complex real-time alignment systems.

The patent introduces intermediary structures such as carrier substrates and bonding layers that facilitate precise alignment between micro LEDs and pixel elements. These intermediaries act as mediators that simplify the alignment process by providing reference surfaces and bonding interfaces, thereby achieving high manufacturing yield through reduced assembly process complexity.