车载显示屏亮度对于道路安全的影响

The Impact of Vehicle Display Luminance on Road Lighting Safety

随着显示技术和控制技术的发展,车载显示越来越成为影响汽车设计与选购的重要因素。如今的汽车多媒体系统,将越来越多的集成到车载显示中。最新的车载显示技术的应用,例如液晶显示和平视显示器,可以给驾驶员带来更加丰富的信息以及更加舒适的驾驶体验。然而,车载显示对于道路安全却会带来一定的影响。在驾驶过程中,驾驶员需要花费大量的时间来观察、处理车载显示上的各类复杂的信息。驾驶员的视线在显示设备和道路的切换中,由于这两种光环境在亮度上的差异,驾驶员对前方道路的观察会受到影响,这一现象在夜间尤为严重,而这在一定程度上加剧了驾驶过程中的危险。本文针对车载显示设备的屏幕亮度对于驾驶员认知表现上的影响做了相关的研究。实验中,被试需要在观察不同亮度的车载显示之后完成一些视觉任务。结合瞳孔尺寸改变的数据,本文分析了显示屏亮度对于驾驶员工效的影响。

With the development of display and interactive technology, the use of display technology in automobile has become an important factor for automobile design and purchase. Today＇ s vehicle media systems are combining more and more functions into one screen. The latest vehicle display technology, such as LCD dashboard and HUD, brings more information and better driving experience to drivers, which makes the vehicle display become the ＂tourth screen＂ besides PCs, tablets and mobile phones. However, vehicle display will also affect the driving satety. In the driving process, it takes drivers much time to pay attention to the display information and deal with muhi-devices. The switch of driver＇ s sight between display devices and roads, especially at night, will attect the driver＇ s recognition because of the differences of the two kinds light environment, which will increase the risk of driving. In this paper, a study was done to research the impact of vehicle display luminance on driver＇ s cognitive pertormance. In the experiment, the subjects were asked to do some visual tasks after observing the vehicle display of different luminance. By combining the data of pupil change in the switching process, the influence of display luminance on the driver＇ s pertormance was analyzed.