In-Vehicle Visual Display Switching for Noticeable Information Changes
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Solution Overview
Problem
Existing in-vehicle information display systems fail to effectively notify occupants of changes in information, particularly in automated driving environments, leading to difficulty in noticing important updates.
Innovation Solution
An information provision system that includes a visual device and a controller, which temporarily adjusts the luminance and saturation of the visual device during information switching periods, and uses distinct colors to represent different types of information, and optionally blinks to draw attention when a driver's operation is missed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the visual device merely changes from a first image to a second image, then the information is updated, but the occupant cannot easily notice the information change
Solution Approach 1:
The patent applies parameter changes by temporarily modifying the luminance or saturation of the visual device during the information switching period. When information changes from first information to second information, the controller temporarily lowers the luminance or saturation to create a noticeable transition effect, making the information change more apparent to the occupant without requiring complex additional hardware
Solution Approach 2:
The patent implements periodic action by applying the luminance or saturation adjustment only during specific time periods - namely, temporarily during the information switching period between displaying first information and second information. This time-limited parameter modification creates a periodic visual effect that draws attention to information changes without continuously altering the display characteristics
2Loss of information
If the visual device uses distinct colors to represent different information types, then information differentiation is improved, but the visual device requires more complex control
Solution Approach 1:
The patent applies color changes by causing the visual device to represent different types of information in different colors. For example, first information may be displayed in one color while second information is displayed in another color, enabling the occupant to quickly differentiate between information types through color cues rather than requiring detailed analysis of the displayed content
3Ease of operation
If automated driving control is implemented, then driver workload is reduced, but the driver may not notice important information changes
Solution Approach 1:
The patent applies parameter changes by temporarily lowering the luminance or saturation of the visual device during information switching periods in automated driving mode. This creates a noticeable visual transition that draws the driver's attention to important information changes even when the driver is not actively monitoring the display continuously, thus maintaining information noticeability while preserving the benefits of automated driving
Solution Approach 2:
The patent implements periodic action by applying visual parameter modifications only during specific information switching periods rather than continuously. This time-limited approach creates periodic attention-grabbing effects that occur precisely when information changes, ensuring the driver notices important updates without requiring constant visual attention or increasing overall driver workload
Data Source
AI summary
An information provision system mounted on a vehicle includes: a visual device configured to visually provide information to an occupant of the vehicle; and a controller configured to control the visual device. The controller is further configured to: cause the visual device to provide first information in a first period; cause the visual device to provide second information different from the first information in a second period later than the first period; and set at least one of a luminance and a saturation of the visual device in at least a part of an information switching period between the first period and the the second period to be lower than that in the first period and the second period.