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为了探讨振动对人识别液晶屏汉字显示易读性的影响，在２１种振动条件下，两种视距（８０ｃｍ和１００ｃｍ），对四种字高（５、６、７、８ｍｍ）及五种笔划（４～５划、８划、１０划、１２划和１３划以上）汉字的易读性（认知时间和错误率）进行了实验。结果表明：在２１种振动条件下，有三种振动对液晶屏汉字识别影响较大。在四种字高中，认知时间和错误率是以７ｍｍ字高为拐点，７ｍｍ、８ｍｍ字高的认知时间和错误率明显低于５ｍｍ、６ｍｍ字高的认知时间和错误率（Ｐ＜０．０１），而７ｍｍ、８ｍｍ字高结果之间却无明显差异。五种笔划中，随笔划的增多，认知时间和错误率也随之增加，两两笔划的认知时间、错误率之间的差异均有非常显著性（Ｐ＜０．０１）。随着视距的变小，认知时间和错误率迅速下降，视距８０ｃｍ与１００ｃｍ的结果比较，Ｐ值均小于０．０１。
In order to investigate the effect of vibration on legibility of Chinese character LCD, two kinds of visual distance (80cm and 100cm) Strokes (4 ~ 5 strokes, 8 strokes, 10 strokes, 12 strokes and 13 strokes or more) Chinese character readability (cognitive time and error rate) were tested. The results show that under the condition of 21 kinds of vibration, there are three kinds of vibration which have a great influence on the LCD character recognition. Cognitive time and error rate are the turning point of the word height of 7mm, and the cognitive time and error rate of 7mm and 8mm word height are significantly lower than those of 5mm and 6mm word height (P < 0.01), while there is no significant difference between the results of 7mm and 8mm word height. Among the five strokes, with the increase of stroke, cognitive time and error rate also increased, the difference between cognitive stroke time and error rate was significant (P <0.01). As the line of sight became smaller, the cognitive time and error rate decreased rapidly. P values were less than 0.01 for both the 80cm and 100cm line of sight.