在智能座舱技术革新的进程中，多屏化人机交互设计被视作推动智能化进程的关键路径之一。本次合作研究由北京师范大学与圣戈班研发(上海)有限公司联手实施，旨在顺应智能汽车领域中多屏互动界面的快速发展趋势和市场需求导向。基于此背景，合作企业凭借其核心竞争力，正致力于研发一款创新的后排侧窗玻璃投影显示系统，以此丰富和拓展车载人机交互手段。

首先，本研究招募了33名Z世代成年被试进行眼动实验，将三种不同的显示材料在五个不同的区域按照一定的顺序进行播放，收集用户观察时的眼动数据，并在结束后填写李克特七级量表。先进行问卷的主观分析；然后对眼动数据进行客观分析。两者相结合得出用户对于侧窗投影显示位置的偏好。

其次，对眼动实验的所有被试进行一对一深度访谈，深入挖掘体验过后排侧窗投影显示的用户在行车和驻车两大使用场景下，对于后排侧窗投影显示功能的需求。采用访谈转录提取，亲和图聚类的用户研究方法总结出了用户在不同场景下对于不同功能的偏好程度以及主观认为的最佳展示区域

最后，本研究结合问卷，眼动实验和访谈的数据，利用描述性统计及非参数检验等多种统计学方法，系统深入地探究了后排乘客对于侧窗玻璃投影显示的位置偏好和不同场景下的功能偏好。以此为设计准则，并结合车载显示的设计原则设计出符合用户需求的可交互界面。对可交互界面进行可用性测试并对界面进行迭代，进一步提升用户体验。

本研究通过综合运用多种研究方法，如问卷调查、深度访谈和眼动实验等，对后排乘客对于侧窗玻璃投影显示位置的偏好以及在多样化场景下对应功能的需求进行了开创性的验证和解析，成功回应了企业在开发侧窗投影显示技术时对于理想位置设定和功能配置的关键问题。在此基础上，精心构思并实现了可交互的界面设计，并通过严格的可用性测试，有力证明了后排侧窗投影显示方案在实践应用上的合理性与有效性。这一系列研究活动不仅为解决现有技术挑战提供了实证依据，还在每个研究阶段积累了宝贵的数据和洞见，进而为合作企业未来在智能汽车产品项目开发中找准定位、明确设计理念和发展路径提供了有力的支持，助力企业在车载交互技术创新上取得更大突破，切实提升产品的实用性和用户体验。

In the process of technological innovation in smart cabins, multi-screen human-computer interaction design is regarded as one of the key paths to promote the process of intelligence. This collaborative research project, jointly implemented by Beijing Normal University and Saint-Gobain R&D (Shanghai) Co., Ltd., aims to adapt to the rapid development trend and market demand orientation of multi-screen interactive interfaces in the field of smart vehicles. Against this backdrop, the partnering company, leveraging its core competencies, is committed to developing an innovative rear side window projection display system to enrich and expand in-vehicle human-computer interaction methods.

Firstly, this study recruited 33 Generation Z adult participants for an eye-tracking experiment. Three different display materials were played in five different areas in a specific order, and eye-tracking data were collected during users' observation. Participants then completed a Likert 7-point scale questionnaire after the experiment. Subjective analysis of the questionnaire was conducted first, followed by objective analysis of the eye-tracking data. Combining these two analyses revealed users' preferences for the projection display position on the side window.

Secondly, one-on-one in-depth interviews were conducted with all participants from the eye-tracking experiment to delve deeper into their needs for rear side window projection display functionality in both driving and parking scenarios. User research methods including interview transcription extraction and affinity diagram clustering were employed to summarize users' preferences for different functions in different scenarios and their subjective perception of the best display area.

Finally, this study utilized various statistical methods, such as descriptive statistics and non-parametric tests, to systematically and deeply explore rear passengers' preferences for projection display positions on side windows and functional preferences in different scenarios, combining the data from questionnaires, eye-tracking experiments, and interviews. Based on these design criteria and in accordance with the design principles of in-vehicle displays, an interactive interface that meets user needs was designed. The interactive interface underwent usability testing and iterations to further enhance the user experience.

By comprehensively applying various research methods such as questionnaire surveys, in-depth interviews, and eye-tracking experiments, this study made groundbreaking validations and analyses of rear passengers' preferences for side window projection display positions and their corresponding functional needs in diverse scenarios. It successfully addressed the key issues faced by companies in developing side window projection display technology regarding ideal position settings and functional configurations. Based on these insights, an interactive interface design was carefully conceived and implemented, and its rationality and effectiveness in practical applications were strongly demonstrated through rigorous usability testing. This series of research activities not only provided empirical evidence for addressing existing technological challenges, but also accumulated valuable data and insights at each research stage. This has provided strong support for the partnering company to accurately position itself, clarify design concepts, and define its development path in future smart vehicle product projects, enabling the company to achieve greater breakthroughs in in-vehicle interaction technology innovation, effectively enhancing product usability and user experience.