Study on the influence of quantum dots-diffuser remote packaging structure on LED performance
CHEN Simin
TAN Haixing
LIN Yushan
ZHANG Jinhui
Abstract：The study changes the remote packaging sequence structure of Quantum-dots and diffusion coatings,experimentally studies the influence of different sequence on the luminous flux,spectrum,color temperature spatial distribution and other properties of LED devices,and analyzes the effect of remote packaging sequence structure on the spectral control performance of the device.The results show that the luminous flux,spectrum,color temperature spatial distribution and other properties of devices with different remote packaging sequence structures vary greatly.When the concentration of quantum-dot coating is lower than 0.5％,the luminous flux of the device with the diffusion coating on the Quantum-dot coating(DOQ structure)is higher than that of the device with the Quantum-dot coating on the diffusion coating(QOD structure).When the concentration of quantum-dot is higher than 1％,the QOD structure has higher luminous flux than that of DOQ structure.It can be seen from the related color temperature spatial distribution of the device that the DOQ structure performs better in correlated color temperature deviation improvement.The color temperature deviation gradually decreases with the increase of TiO2 mass fraction,from 333 K to 65 K.The study could provide packaging guidance for quantum-dots in different application.
Keywords：quantum-dots LEDremote packaging sequenceoptical color performance
Publication Date：2025-03-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 61-67 )