OLED Insulating Layer Concave Reflective Surfaces Light Extraction

The patent applies local quality by creating different micro-cavity structures at different locations within the encapsulation resin layer. Specifically, first micro cavities are formed in a first region and second micro cavities are formed in a second region, allowing each region to have optimized optical properties for its specific function - one region for extracting blue light and another for extracting red light, thereby maintaining color uniformity while improving overall light extraction efficiency

The patent segments the encapsulation resin layer into multiple functional regions with different micro-cavity structures. By dividing the layer into a first region with first micro cavities and a second region with second micro cavities, the system can independently optimize light extraction for different wavelengths (colors) without causing viewing angle-dependent color shifts, thus resolving the contradiction between light extraction efficiency and color uniformity

The patent merges the optical enhancement function into the encapsulation resin layer itself by forming micro cavities within it. This integration eliminates the need for separate optical extraction layers or additional components, as the encapsulation resin simultaneously serves both its protective function and its light extraction enhancement function through the embedded micro-cavity structures

The encapsulation resin layer performs self-service by incorporating micro cavities that automatically enhance light extraction efficiency without requiring external control or additional active components. The micro cavities are passively formed within the resin material, allowing the structure to self-optimize optical performance while maintaining structural integrity and simplifying the overall device architecture