Janus Nano Diffusion Particles for LCD Thermal Uniformity

The patent employs composite diffusion particles comprising a core shell structure with an inorganic heat-conducting core (such as aluminum oxide, boron nitride, or boron oxide) and an organic diffuse-light shell (such as polyethylene terephthalate, polystyrene, or polyacrylic acid). This composite structure integrates both thermal conduction and light diffusion functions into a single particle system, resolving the contradiction between thermal uniformity and display quality by eliminating the need for separate thermal management components while preventing local area whitening through uniform heat distribution.

The patent modifies the physical and chemical parameters of diffusion particles by introducing inorganic heat-conducting materials with specific thermal conductivity values (aluminum oxide with 25-30 W/m·K, boron nitride with 20-30 W/m·K, or boron oxide with 15-25 W/m·K) while maintaining the organic shell's light diffusion properties. This parameter change enables the diffusion sheet to reduce temperature difference to within 5°C or less while preserving brightness uniformity, directly addressing the contradiction between temperature control and illumination intensity.

The patent designs diffusion particles that simultaneously perform multiple functions: the inorganic core provides thermal conduction pathways to distribute heat uniformly across the diffusion sheet, while the organic shell provides light diffusion to achieve uniform illumination. This multi-functionality eliminates the need for separate thermal management layers or additional heat-conducting components, thereby improving thermal conduction capability without increasing device structure complexity.