Stacked Organic-Inorganic LED Display Layout for Higher Luminance

The patent transitions from a two-dimensional arrangement of LEDs on a substrate to a three-dimensional stacked structure where organic LEDs are positioned above inorganic LEDs. This vertical stacking in the third dimension increases light emission luminance without requiring expansion in the planar area, thereby resolving the contradiction between improving illumination intensity and maintaining device structure simplicity.

The patent combines two different types of LEDs (inorganic and organic) into a single integrated display device structure. By merging the strengths of both LED types in a stacked configuration, the device achieves higher overall luminance while maintaining a compact form factor, addressing the contradiction between improved illumination and structural complexity.

The patent merges inorganic LEDs (providing high luminance) and organic LEDs (providing long lifespan) into a stacked configuration where each type contributes its advantageous property. The inorganic LEDs emit bright light while the organic LEDs provide extended operational life, thereby resolving the contradiction between achieving high illumination intensity and ensuring long device lifespan.

The patent applies different LED types to different functional requirements within the same device. Inorganic LEDs are positioned to provide high luminance output, while organic LEDs are positioned to provide long-term operational stability. This local optimization of component properties resolves the contradiction between luminance and lifespan by assigning each LED type to its strength.