P‐8.4: Analysis and Application of the Key Factors of Mini‐LED LCM Temperature

In order to avoid the risk of high temperature in the key components of Mini‐LED LCM (Liquid crystal display Module), this paper studied the influencing factors of the temperature of Mini‐LED LCM, and provided the optimal design scheme of the LCM from the perspective of heat dissipation. Firstly, the thermal simulation model of 32‐inch Mini‐LED LCM was established, and the maximum temperature and temperature distribution of each component of the LCM were calculated. Then, the accuracy of the simulation model was verified by the temperature test results of 32‐inch Mini‐LED LCM physical prototype, and the error between simulation and measured temperature is less than 3℃. Furtherly, the temperature difference of LCM with different design schemes were compared by simulation, and the key influencing factors of LCM temperature and their influencing laws were analyzed. The simulation results have shown that LED type, LED power, LED number, LED board/bar material, back cover material and thickness are the key factors of LCM temperature. Finally, according to the influence laws of key factors, the optimal heat dissipation scheme of 27‐inch Mini‐LED LCM was designed. It has passed the LCM temperature test experiment, which avoids the high temperature risk and saves the cost of sample production and test.