Adaptive Vehicle Display Layout for Occupant Posture Changes
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Solution Overview
Problem
In vehicles capable of autonomous driving, the posture changes of occupants can make it difficult for them to view information displayed on screens, as the display visibility is compromised when occupants change their position during autonomous driving.
Innovation Solution
A vehicle display device with multiple display faces (front-side, rear-side, upper-side, and lateral) that detects the occupant's orientation and posture, and adjusts the display to ensure information is shown on the most visible face, using a projector that can change magnification and projection direction to maintain optimal visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed display part is provided at a single location in the vehicle, then the device complexity is reduced, but the visibility of information becomes poor when occupants change their posture during autonomous driving
Solution Approach 1:
The display system is segmented into multiple independent display parts positioned at different locations (front-side display part, rear-side display part, upper-side display part, and lateral display part). Each display part can independently display information, allowing occupants to view information from their optimal viewing position regardless of posture changes during autonomous driving.
Solution Approach 2:
The display system transitions from a single fixed location to a three-dimensional spatial distribution of multiple display parts throughout the vehicle cabin. This multi-dimensional arrangement ensures that information is accessible from various angles and positions, solving the visibility problem when occupants change posture.
2Ease of operation
If multiple display parts are provided at different locations, then the visibility of information is improved for occupants with various postures, but the device complexity increases
Solution Approach 1:
The projector unit is designed with multi-functionality, capable of projecting images onto any of the multiple display parts located at different positions in the vehicle. This universal projector can dynamically select and project to the most appropriate display face based on the detected occupant posture, reducing the need for separate projection systems for each display location.
Solution Approach 2:
The detection part serves as an intermediary between the occupant's posture and the display system. It detects occupant orientation and posture, then provides this information to the control part, which uses it to select the appropriate display face and adjust projection parameters, thereby coordinating the multiple display parts efficiently.
3Ease of operation
If the display automatically adjusts to occupant posture, then the visibility is maintained, but the measurement and detection requirements become more complex
Solution Approach 1:
The system implements a feedback loop where the detection part continuously monitors occupant posture and orientation, and this information is fed back to the control part. The control part then adjusts the display face selection and projection parameters in real-time based on this feedback, ensuring continuous optimal visibility as the occupant's posture changes during autonomous driving.
Data Source
AI summary
A vehicle display device includes: a display part having a front-side display part, a rear-side display part and an upper-side display part provided inside a vehicle cabin, each of the front-side display part, the rear-side display part and the upper-side display part having a display face; a detection part that detects an orientation and a posture of an occupant; and a control part that selects a display face in accordance with the orientation and the posture of the occupant detected by the detection part, and controls display by the display part such that information is displayed at the selected display face. The display face of the upper-side display part is provided at a roof head lining inside the vehicle cabin.