Cross-Linkable Light Emitting Body-Polymer Composite for Moisture Protection

The patent uses a composite material consisting of a transparent resin combined with a cross-linking agent (such as silane-based compounds or epoxide-based compounds). This composite structure provides both the transparency needed for light transmission and the protective barrier properties against moisture and oxygen, resolving the contradiction between maintaining light transmission and preventing harmful substance ingress.

The patent changes the chemical parameters of the transparent resin by introducing cross-linking agents that form a three-dimensional network structure. This cross-linking increases the density and reduces the free volume of the polymer matrix, thereby decreasing permeability to moisture and oxygen while maintaining optical transparency. The cross-linking degree and network structure are optimized to achieve the desired balance between protection and light transmission.

The cross-linking agent is pre-mixed with the transparent resin to form a homogeneous composition before encapsulation. This preliminary mixing ensures uniform distribution of the cross-linking agent throughout the resin matrix, simplifying the manufacturing process by eliminating the need for separate application steps. The pre-formed composition can be directly applied to the light emitting device and then cured to achieve the protective cross-linked structure.

The cross-linking reaction is designed to occur automatically under specific conditions (such as exposure to moisture, heat, or UV light) after the composition is applied to the device. This self-service approach eliminates the need for complex external curing equipment or multi-step processing, as the material itself performs the cross-linking function in response to environmental stimuli, thereby simplifying the manufacturing process while achieving the desired protective properties.