Organic EL Partition Structure for Cathode Flattening

The patent applies preliminary action by forming a partition structure before depositing the cathode material. The partition is created on the interlayer insulator to define the contact hole region, and then the cathode is deposited only in the regions outside the partition, preventing material from entering the contact hole and forming a dent. This preliminary structuring resolves the contradiction by establishing the geometric constraints before the cathode formation process.

The patent segments the cathode formation process by using a partition to divide the deposition area. The partition separates the contact hole region from the cathode deposition region, allowing the cathode to be formed in discrete areas around the contact hole rather than as a continuous layer. This segmentation prevents the dent formation while maintaining electrical connection through the contact hole.

The partition is formed preliminarily on the interlayer insulator before cathode deposition, creating a structured framework that defines both the contact hole location and the cathode deposition boundaries. This preliminary action enables larger aperture rates while maintaining manufacturing precision, as the partition automatically provides the necessary geometric constraints for uniform cathode formation around larger contact holes.

The partition acts as an intermediary structure between the contact hole and the cathode. It mediates the interaction by providing a physical barrier that prevents cathode material from entering the contact hole while also defining the deposition area. This intermediary structure enables the system to accommodate larger aperture rates without compromising the flattening precision.

The partition structure is formed preliminarily on the interlayer insulator before any cathode or organic light-emitting layer deposition. This preliminary partitioning creates clearly defined deposition regions that guide the inkjet printing process, allowing different high molecular organic materials to be deposited in separate regions (R, G, B regions) without cross-contamination. The pre-formed partition simplifies the subsequent material deposition process.

The partition segments the deposition area into distinct regions for different organic light-emitting materials. By creating physical boundaries before material deposition, the system enables precise spatial control of different materials using the inkjet method, resolving the contradiction between material efficiency and structural complexity.