Perceptibility

Drivers must be able to take in the information on their vehicle information display at a glance while driving safely. In accordance with this principle, we take into consideration text size, brightness, color, and information display time so that information is displayed in a highly visible form that is easy for everyone to see.

In order to display advanced driving support information and connected technology information in clear, easy to understand ways, the number and range of display devices is increasing, encompassing windshields and interior cabin surfaces. In accordance with this principle, our systems automatically adjust superimposed displays on front windshields based on the driver's eye position and facial angle. This ensures visibility and eliminates information display misalignment. When displaying information on interior cabin surfaces, both resolution and brightness are reduced, so we pay close attention to legibility.

The amount of information displayed in vehicles is rising. In addition to safety, vehicle, road environment, convenience, and entertainment information, there is now a rising amount of advanced driving support information. In accordance with this principle, we group and prioritize similar types of information, structuring them so that customers can understand them immediately.

Information regarding the vehicle's surroundings, detected by vehicle sensors, is intangible, so interpretations can vary from driver to driver. In accordance with this principle, our systems aid with driver understanding by using interaction design in which function operation states and danger levels are expressed in easy-to-understand ways.

When humans experience visual appeal, their impressions of entire experiences become more positive. In accordance with this principle, we seek to improve usability not simply by accurately displaying technical information, but also by using beautiful and appealing interaction design.

In the past, feedback from vehicles to users has generally consisted of isolated feedback methods, such as warning lamp lights or beeps. In accordance with this principle, we use the rich sensory capabilities of users to convey increasingly complex vehicle conditions so that they can clearly understand the state of their automobiles. For example, when switching over from autonomous driving to manual driving, air flow, fragrance, GUI coloring, sonic melody, and vibration are used to alert the driver.