physics   specialized a device that makes light waves move in one direction

中文解释

（照相机和电子仪器的）偏光板（片、镜等） It\'s possible to create an outdoor-readable Tablet PC by using an appropriate LCD technology coupled with appropriate polarizers and filters. 使用合适的液晶技术加上合适的偏光片和滤光片，就可以制作出户外可读的平板电脑。