由于背景干涉条纹的影响,在激光视频显示系统中,通常获得的激光视频图像不仅对比度降低,而且像质较差。通过采用多像素扫描法,成功地突破了投影显示方式的技术瓶颈,消除了这种显示方式产生的干涉条纹,使激光显示与传统显示方式相比在像质上有了很大的提高。通过对激光显示过程中激光形成干涉机制的深入分析和研究,提出了“多像素扫描法”,并设计了相关装置。该方法既可以用来实现投影显示,又可用来消除激光干涉。多像素扫描法既克服了扫描式激光显示的技术缺陷又解决了投影式存在的激光干涉条纹问题,获得了很好的显示效果。实践表明,该方法为激光显示研究提供了一种切实可行的方法。

In the laser video display system, video image with low contrast and inferior image quality are usually happened due to the effects of the background interference fringes. Aiming at eliminating such kind of interference fringes, multi-pixel scanning method is proposed in the laser TV, which breaks the technical bottleneck of scanning method. What is more, compared with traditional display, a great improvement can be fulfilled in image quality. Through deep analysis and research on the mechanism of laser interference in the process of laser display, a multi-pixel scanning method is presented in this paper, and relevant device has also been designed. This method can be used to achieve offset interference as well as projecting display. It can been seen that excellent display effect can be obtained by this method and technical defection in scanning laser display can be overcome as well as laser interference fringes in projecting style. It is demonstrated that this method has referenced and practical evaluation for offering an effective method in the research of laser TV.