Rod-Shaped LED Electrode Layout for Higher Front Light Extraction

The patent divides the structure into two separate components: reflection electrodes and partition walls. By making them separate elements rather than a single integrated structure, each can be independently optimized for its specific function. The reflection electrodes can be tailored for optimal light reflection with specific height and gradient parameters, while partition walls can be optimized for light guiding and directional control, thereby resolving the contradiction between manufacturing simplicity and light emission efficiency.

The patent applies different materials and geometric parameters to different parts of the structure. Reflection electrodes use specific material properties and height/gradient configurations optimized for light reflection, while partition walls use different parameters optimized for light guiding. This local optimization of each component's properties enables maximum light emission efficiency while maintaining functional distinctness between components.

The patent introduces partition walls as intermediary structures that mediate between the LED and the reflection electrodes. These partition walls provide a stable reference framework that facilitates precise positioning of the reflection electrodes relative to the LED. By using the partition walls as intermediate positioning elements, the system achieves both close proximity for effective light collection and relaxed alignment tolerances through the mediating structure.

The patent implements preliminary positioning structures (partition walls) that are formed first to establish precise geometric references before placing the reflection electrodes. This preliminary action of creating the partition wall framework enables subsequent precise alignment of the reflection electrodes, thereby achieving both close proximity for light collection and manufacturing precision through pre-established reference structures.

The patent designs the partition walls to serve multiple functions simultaneously: they act as light guiding structures, provide geometric references for aligning reflection electrodes, and form part of the overall light extraction pathway. By making the partition walls multi-functional, the patent achieves enhanced light emission efficiency without proportionally increasing device complexity, as a single structural element performs multiple critical roles.

The patent merges the light guiding function and the alignment reference function into the same partition wall structure. Rather than adding separate layers for each function, the partition walls are designed to simultaneously provide both light guiding pathways and geometric references for electrode positioning. This merging of functions reduces overall structural complexity while maintaining enhanced light emission performance.