Chen Yumiao, Huang Gan, Wang Kaixuan
School of Art Design and Media, East China University of Science and Technology, Shanghai, China.
Ergonomics. 2025 Jul;68(7):1113-1123. doi: 10.1080/00140139.2024.2392798. Epub 2024 Aug 17.
To investigate the legibility of Chinese characters' font size, text background opacity, and font stroke for the elderly in virtual reality, we recruited old and young participants to conduct experiments with VR and used eye-tracking technology to record the data of task completion time and error rate. After analysis, we concluded that the minimum recognition font size for the elderly is 30 dmm, and the best font size is 60 dmm, which is 20 and 40 dmm for young people. The font style has a significant effect on old people ( = 0.000*). Besides, for font sizes smaller than 20 dmm and bigger than 50 dmm, text with strokes and over 50% semi-transparent backgrounds can improve legibility for the elderly. With a suitable font size, the influence of font style on the elderly is not significant. These conclusions can provide a reference for the elderly-oriented Chinese font design in VR.
为了研究虚拟现实中汉字字体大小、文本背景不透明度和字体笔画对老年人的易读性，我们招募了老年和年轻参与者进行虚拟现实实验，并使用眼动追踪技术记录任务完成时间和错误率数据。经过分析，我们得出结论，老年人的最小识别字体大小为30 dmm，最佳字体大小为60 dmm，年轻人则为20和40 dmm。字体样式对老年人有显著影响（ = 0.000*）。此外，对于小于20 dmm和大于50 dmm的字体大小，有笔画的文本和超过50%半透明背景可以提高老年人的易读性。在字体大小合适的情况下，字体样式对老年人的影响不显著。这些结论可为虚拟现实中面向老年人的中文字体设计提供参考。
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