[7] [7] ZHANG L, ZHUANG D M, WANYAN X R. Information coding for cockpit human-machine interface［J］．Chinese Journal of Mechanical Engineering, 2011, 24（4）：707-712.

[8] [8] HUANG S M. The rating consistency of aesthetic prefe-rences for icon-background color combinations［J］．Applied Ergonomics, 2012, 43：141-150.

[9] [9] OJANPAA H, NASANEN R. Effects of luminance and colour contrast on the search of information on display devices［J］．Elsevier Computer Science, 2003, 24：167-178.