Department of Human Factors Engineering, UNIST, Ulsan, Republic of Korea.
Division of Media, Culture and Design Technology, Hanyang University, Ansan, Republic of Korea.
PLoS One. 2020 Feb 6;15(2):e0228437. doi: 10.1371/journal.pone.0228437. eCollection 2020.
Although watching TV often involves multiple viewing distances and viewers, less attention has been paid to the effects of display curvature radius, viewing distance, and lateral viewing position on TV watching experience. This study examined the effects of four display curvature radii (2300R, 4000R, 6000R, and flat), two viewing distances (2.3 m and 4 m), and five lateral viewing positions (P1-P5; 0, 35, 70, 105, and 140 cm off-center) on seven TV watching experience elements (spatial presence, engagement, ecological validity, negative effects, visual comfort, image quality, and user satisfaction). Fifty-six individuals (14 per display curvature radius) were seated in pairs to watch videos, each time at a different viewing position (2 viewing distances × 5 paired lateral viewing positions). The spatial presence and engagement increased when display curvature radius approached a viewing distance and lateral viewing position approached P1, with 4000R-4m-P1 (display curvature radius-viewing distance-lateral viewing position) providing the best results. Lateral viewing position alone significantly affected five TV watching experience elements; the spatial presence and engagement decreased at P3-P5, and ecological validity, image quality, and user satisfaction decreased at P4-P5. However, display curvature radius alone did not appreciably affect TV watching experience, and viewing distance alone significantly affected visual comfort only, with a 4-m viewing distance increasing visual comfort. This study demonstrated that effective display curvature radii for watching TV are viewing distance-dependent, and less off-center lateral viewing positions (P1-P2) are recommended for TV watching experience. Finally, among the TV watching experience elements, engagement explained user satisfaction to the greatest degree.
虽然看电视通常涉及多种观看距离和观众，但对显示曲率半径、观看距离和横向观看位置对电视观看体验的影响关注较少。本研究考察了四种显示曲率半径（2300R、4000R、6000R 和平面）、两种观看距离（2.3 米和 4 米）和五个横向观看位置（P1-P5；0、35、70、105 和 140 厘米偏离中心）对七个电视观看体验元素（空间存在感、参与度、生态有效性、负面影响、视觉舒适度、图像质量和用户满意度）的影响。56 人（每种显示曲率半径 14 人）成对坐在观看视频，每次观看的位置都不同（2 种观看距离×5 个配对的横向观看位置）。当显示曲率半径接近观看距离，横向观看位置接近 P1 时，空间存在感和参与度会增加，其中 4000R-4m-P1（显示曲率半径-观看距离-横向观看位置）的效果最佳。单独的横向观看位置显著影响了五个电视观看体验元素；在 P3-P5 处空间存在感和参与度降低，在 P4-P5 处生态有效性、图像质量和用户满意度降低。然而，显示曲率半径单独对电视观看体验没有明显影响，观看距离单独对视觉舒适度有显著影响，4 米的观看距离增加了视觉舒适度。本研究表明，观看电视的有效显示曲率半径取决于观看距离，建议观看体验时选择较不偏离中心的横向观看位置（P1-P2）。最后，在电视观看体验元素中，参与度对用户满意度的解释程度最大。
