Hybrid Encapsulation Layer for Flexible Displays

The encapsulation layer is divided into multiple thin inorganic layers and organic layers stacked alternately. Each layer has a thickness of 100-3000 Å, creating a segmented structure that maintains protection while allowing flexibility. The multiple thin layers can bend without fracturing compared to a single thick layer.

The encapsulation layer uses a composite structure combining inorganic materials (such as silicon nitride, silicon oxide, or silicon oxynitride) and organic materials (such as polyimide or acrylic resin). This composite structure provides both the protection of inorganic materials and the flexibility of organic materials, resolving the contradiction between durability and flexibility.

Instead of using a single thin layer that would be weak, the encapsulation is segmented into multiple thin layers (100-3000 Å each) stacked alternately. The cumulative thickness provides adequate protection while each individual thin layer maintains flexibility and prevents fracture.

The alternating inorganic and organic layers create a composite structure where the inorganic layers provide barrier protection and the organic layers provide flexibility. This composite approach achieves both protection and flexibility simultaneously, overcoming the trade-off between thickness and flexibility.

The single-layer structure is segmented into multiple thin alternating layers of inorganic and organic materials. This segmentation prevents fracture under bending while the sequential deposition process using standard ALD and CVD techniques maintains manufacturing feasibility.

The alternating inorganic and organic layers form a composite encapsulation structure that prevents fracture. The inorganic layers (deposited by ALD) provide structural integrity and barrier properties, while the organic layers (deposited by CVD) provide flexibility and stress relief, together achieving fracture resistance.