Color Conversion Composition Using Polyester Resin for Durability

The patent introduces an organic light-emitting material as an intermediary substance that converts blue light to green or red light with high color purity. This organic material serves as a mediator between the blue light source and the final color output, achieving narrow emission spectra without the durability problems of quantum dots. The organic material can be processed into solution and applied to substrates, forming a protective layer that maintains color purity while being less susceptible to degradation from heat, water, and oxygen.

The patent applies parameter changes by carefully selecting and optimizing the molecular structure of organic light-emitting materials to achieve narrow emission spectra. By modifying chemical parameters such as molecular weight, functional groups, and structural configuration of the organic compounds, the emission spectrum width is controlled to be narrow while maintaining durability. The patent specifies using organic materials with particular structural characteristics that enable both high color purity and durability simultaneously.

The patent applies local quality by using organic light-emitting materials with specifically designed molecular structures that emit light in narrow spectral bands. Different organic compounds are selected for different color regions (green vs. red emission) with tailored molecular characteristics. This localized optimization of material properties in different spectral regions enables high color reproducibility while maintaining ease of manufacture through solution processing and conventional coating techniques.