OLED Display Panel Layout for Dense Under-Camera Emission

The patent introduces a multi-layer structure where connection traces are distributed across different layers (first connection traces in a first layer, second connection traces in a second layer). This vertical dimensionality allows increasing the effective number of connections without adding more traces in the planar direction, thereby supporting higher density of light-emitting units in camera regions while managing connection complexity.

The patent segments the connection traces into multiple groups: first connection traces connecting first pixel circuit groups to first light-emitting unit groups, and second connection traces connecting second pixel circuit groups to second light-emitting unit groups. This segmentation allows independent optimization of each connection path and enables higher density arrangements in camera regions by utilizing both first and second layers for connections.

By utilizing multiple layers for connection traces, the patent effectively increases connection capacity without proportionally increasing manufacturing steps. The first and second connection traces in different layers can be formed using standard multi-layer fabrication processes, making the solution manufacturable while supporting higher light-emitting unit density in camera regions.

The dummy electrode patterns serve multiple functions: they act as connection structures for light-emitting units in camera regions, provide capacitance compensation, and maintain structural consistency across different display regions. This multi-functionality reduces the need for separate specialized structures, thereby simplifying manufacturing while improving display effects in camera regions.

The dummy electrode patterns are designed to serve multiple purposes: they provide electrical connections between pixel circuits and light-emitting units, maintain capacitance for signal stability, and preserve optical transmittance in camera regions. By combining these functions into a single structure type, the patent reduces overall structural complexity compared to having separate dedicated structures for each function.

The dummy electrode patterns replicate the structural characteristics of functional electrode patterns but are positioned in regions where they serve as connections rather than active light-emitting elements. This copying approach allows using proven, optimized electrode structures for connection purposes, maintaining transmittance properties while avoiding the need to design entirely new connection structures.