激光显示消散斑问题是激光显示的重要研究课题,是阻碍激光显示真正实用化的一个关键难题。综述了国内外已有的消散斑方案的优劣以及可行性,并重点分析了双屏幕振动消散斑方案。在此基础上,提出了新的三种理论消散斑方案:铁电液晶消散斑,波导扰动光纤消散斑和旋转散射片消散斑。

Laser speckle reduction is an important research topic in laser display, and laser speckle problem is a key problem of blocking the laser display real practical application. In the paper, it summarizes the merits and feasibility of speckle reduction schemes, and focuses on the analysis of the reduction scheme by dual screens shaking. On this basis, it put forward three kinds of speckle reduction schemes: speckle reduction by ferroelectric liquid crystal; speckle reduction by waveguide disturbance fiber and rotating diffuser speckle reduction.