Simpson G C
a BISRA Human Factors Section , 140 Battersea Park Road , London , England.
Ergonomics. 1971 Jul;14(4):497-507. doi: 10.1080/00140137108931270.
A series of experiments was carried out to compare the legibility of three different typos of electronic digital display. The three displays, namely the cold cathode, the side illumination and the straight projection types, were examined under varying ambient light levels and viewing positions. The two performance criteria used in the investigations were recognition time for a single digit and accuracy of report of a four digit number. Results indicated that there was little difference between the cold cathode and the straight projection types under the conditions used in the experiment. However, the side illumination display gave a significantly poorer performance score than cither of the two other displays. It was also shown that performance decrements would result if any of the displays wore used in ambient light levels of greater than 22 foot candles.
进行了一系列实验以比较三种不同类型电子数字显示器的清晰度。这三种显示器分别是冷阴极型、侧光照明型和直投型，在不同的环境光照水平和观看位置下进行了测试。研究中使用的两个性能标准是单个数字的识别时间和四位数报告的准确性。结果表明，在实验所用条件下，冷阴极型和直投型之间几乎没有差异。然而，侧光照明显示器的性能得分明显低于其他两种显示器中的任何一种。研究还表明，如果在环境光照水平大于22英尺烛光的情况下使用任何一种显示器，都会导致性能下降。
