基于导光板底面直接熔合微棱镜取代目前背光系统平面反射膜和网点两层结构,推导了棱镜底角和出射亮度方向角之间的关系,提出导光板出射亮度方向角与棱镜远近光源底角的解析公式。用LightTools软件对导光板进行建模仿真,通过改变棱镜两个底角,得到出射亮度峰值方向和底角之间的变化规律。理论值与模拟仿真值基本符合,为背光模组一体化的研究提供理论和实验依据。依据上述规律,设计出一体化导光板结构,其中,微棱镜近光源角为86°,远光源角为37°,亮度达到现行3M背光系统指标。 Based on the direct fusion microprism at the bottom of the LGP, the relationship between the prism bottom angle and the exit angle of the backlight is deduced. The relationship between the exit angle of the LGP and the bottom corner of the prism Analytical formula. LightTools software was used to model and simulate the light guide plate. By changing the two base angles of the prism, the variation law between the peak direction and the base angle was obtained. The theoretical value is basically in line with the simulation value, which provides the theoretical and experimental basis for the research of backlight module integration. According to the above rules, an integrated light guide plate structure is designed, in which the micro-prism near light source angle of 86 °, the light source angle of 37 °, the brightness of the current 3M backlight system indicators.