Details of the materials used in the study
| Backlit displays | |
| Smartphone | Huawei P30 |
| Screen size (inch) | 2.56 (W)×5.55 (H) |
| Screen resolution (ppi) | 422 |
| Tablets | Huawei Matepad BAH1-W09 |
| Screen size (inch) | 6.10 (W)×9.65 (H) |
| Screen resolution (ppi) | 224 |
| Laptop | Lenovo Thinkpad L480 |
| Screen size (inch) | 12.20(W)×6.89(H) |
| Screen resolution (ppi) | 157 |
| E-ink display | |
| E-ink | Kindle PaperWhite4 |
| Screen size (inch) | 4.49 (W)×6.54(H) |
| Screen resolution (dpi) | 226 |
| Paper material | |
| Excerpt from ‘The Thousand and One Nights’ | A4 paper |
| Paper size (inch) | 8.27 (W)×11.69 (H) |
dpi, dots per inch; H, height; ppi, pixels per inch; W, width.