Abstract With an attempt to enhance the visibility of laser beam projected on a display panel, we investigate the single-layered black matrix (BM) structure where light scattering particles are embedded in BM and the double-layered BM structure in which the scattering layer is separated from BM. By a ray tracing tool, we perform simulations, and then calculate the scattered ray distribution and detected power for those BM structures. It is observed from the results for both structures that the visibility is enhanced with increasing scattering particle density, but lowered with increasing oblique incidence of the laser beam. It is also demonstrated that the double-layered BM structure shows higher visibility than the single-layered BM structure. However, there exists a trade-off between the visibility of the projected laser beam on display panels and color mixing among pixels on the selection of those BM structures. Although color mixing is still unavoidable, our study shows that the scattered power into the active pixel area (pixel aperture) is as low as 1% of the incident laser power.

中文翻译：

---

具有散射粒子的黑色矩阵对显示面板投射激光束的能见度增强仿真与分析

摘要 为了提高投射在显示面板上的激光束的可见度，我们研究了光散射粒子嵌入在 BM 中的单层黑矩阵 (BM) 结构和其中散射层为 BM 的双层 BM 结构。与BM分开。通过光线追踪工具，我们进行模拟，然后计算这些 BM 结构的散射光线分布和检测功率。从两种结构的结果可以看出，可见度随着散射粒子密度的增加而增强，但随着激光束斜入射的增加而降低。还证明双层 BM 结构比单层 BM 结构显示出更高的可见性。然而，在选择这些 BM 结构时，在显示面板上投射激光束的可见性和像素之间的颜色混合之间存在权衡。尽管颜色混合仍然不可避免，但我们的研究表明，进入活动像素区域（像素孔径）的散射功率低至入射激光功率的 1%。