title: Image Quality Analysis and Optical Performance Requirement for Micromirror-Based Lissajous Scanning Displays.
abstract: Micromirror-based scanning displays have been the focus of a variety of applications. Lissajous scanning displays have advantages in terms of power consumption; however, the image quality is not good enough. The main reason for this is the varying size and the contrast ratio of pixels at different positions of the image. In this paper, the Lissajous scanning trajectory is analyzed and a new method based on the diamond pixel is introduced to Lissajous displays. The optical performance of micromirrors is discussed. A display system demonstrator is built, and tests of resolution and contrast ratio are conducted. The test results show that the new Lissajous scanning method can be used in displays by using diamond pixels and image quality remains stable at different positions.
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Haidian District, Beijing 100084, China. dwq13@mails.tsinghua.edu.cn.
authors.forename: Weiqi
authors.initials: W
authors.lastname: Du
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Haidian District, Beijing 100084, China. zgf@tsinghua.edu.cn.
authors.forename: Gaofei
authors.initials: G
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Haidian District, Beijing 100084, China. yelc08@163.com.
authors.forename: Liangchen
authors.initials: L
authors.lastname: Ye
keywords: Lissajous scanning display; contrast ratio; diamond pixel; micromirror; resolution