Flexible Display Organic Layer Recess Design

The patent introduces a buffering layer positioned between the inorganic layer and the substrate, which serves as a pre-configured stress-absorbing element. This buffering layer is specifically designed to accommodate tensile stress generated during folding operations, preventing the stress from propagating to critical film layers and causing damage. The buffering layer acts as a cushion that absorbs mechanical energy before it can cause detachment or cracking.

The patent employs a multi-layer composite structure comprising organic layers, inorganic layers, and buffering layers with different material properties. This composite design allows each layer to contribute its specific characteristics - the inorganic layer provides barrier functionality, the organic layer provides flexibility, and the buffering layer provides stress absorption. The combination of materials with complementary properties enables the display panel to withstand folding stresses while maintaining reliability.

The patent divides the protective structure into multiple segmented layers - organic layers, inorganic layers, and buffering layers - rather than using a single thick protective layer. This segmentation allows each layer to be optimized for its specific function while collectively providing stress resistance. The thin, distributed buffering layers provide stress absorption without creating a single point of rigidity that would hinder bendability.

The patent utilizes thin-film structures for both the protective buffering layers and the functional layers. These thin films are specifically designed to be flexible enough to accommodate bending while providing sufficient stress resistance. The buffering layers are positioned and dimensioned to provide stress absorption without creating excessive rigidity, thereby maintaining the overall flexibility and bendability of the display panel.