Organic Buffer Layer Droplet Micro-Structures for Flexible OLED Stress

The inorganic moisture-blocking layer is divided into multiple separate layers (first inorganic moisture-blocking layer and second inorganic moisture-blocking layer) with an organic buffer layer containing droplet micro-structures in between. This segmentation prevents stress concentration in a single continuous layer, allowing the structure to flex without breaking while maintaining moisture-blocking performance through the distributed layered architecture.

The organic buffer layer containing droplet micro-structures serves as an intermediary between the first and second inorganic moisture-blocking layers. This intermediary layer absorbs and distributes mechanical stress during bending, preventing stress concentration at any single point in the inorganic layers, while the inorganic layers maintain their continuous structure for effective moisture blocking.

The encapsulation structure uses a composite of inorganic moisture-blocking layers and an organic buffer layer with droplet micro-structures. The inorganic layers provide superior moisture-blocking performance, while the organic buffer layer provides flexibility and stress distribution. The combination creates a composite structure that achieves both moisture blocking and flexibility simultaneously, overcoming the limitations of using either material alone.