Display Device With Differently Sized Organic Openings for Light Control

The patent converts the harmful effect of light refraction (which causes light extinction and reduces output efficiency) into a beneficial effect by introducing refraction layers with specifically controlled refractive indices. These layers are designed to refract light in a controlled manner that directs it toward the front surface, transforming the previously harmful refraction into a useful light-guiding mechanism that improves both refraction control and maintains high light output efficiency.

The patent applies parameter changes by precisely controlling the refractive index values of the refraction layers. The first refraction layer has a refractive index of 1.30-1.60, the second refraction layer has 1.60-1.80, and the third refraction layer has 1.70-1.90. By optimizing these specific parameter ranges, the patent achieves effective light refraction control while minimizing light extinction, thus resolving the contradiction between refraction control precision and light output efficiency.

The patent segments the light management function into multiple distinct refraction layers, each with a specific refractive index range and position. The first refraction layer (1.30-1.60) is positioned closest to the light emitting element, the second refraction layer (1.60-1.80) is in the middle, and the third refraction layer (1.70-1.90) is farthest away. This segmentation allows each layer to perform a specific refraction function, achieving superior light transmission while maintaining organized structural complexity that is manageable in manufacturing.

The patent applies local quality by giving each refraction layer a distinct refractive index property tailored to its specific position and function. Rather than using a uniform material throughout, each layer has locally optimized optical properties: the first layer has lower refractive index (1.30-1.60) for initial light management, the second layer has intermediate index (1.60-1.80) for intermediate refraction, and the third layer has higher index (1.70-1.90) for final light direction control. This local optimization achieves high light transmission while keeping the overall device complexity manageable through functional specialization.