In-Vehicle Display Optical Module Layout for Driver Monitoring
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Solution Overview
Problem
There is a challenge in determining the optimal position for the optical module in in-vehicle display devices to facilitate effective information collection and monitoring, particularly in relation to driver fatigue and distraction, due to the complexity of integrating optical modules with display panels in vehicles.
Innovation Solution
The optical module is positioned within specific distance ranges relative to the edges of the display panel, considering the viewing angles and arrangement angles, with the module placed on one side away from the headrest and aligned with the display panel's symmetry axis, allowing for comprehensive driver monitoring and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the optical module is positioned to optimize driver monitoring coverage, then information collection accuracy is improved, but the device structure becomes more complex
Solution Approach 1:
The patent combines the optical module and display panel into a single integrated in-vehicle display device structure. The optical module is positioned at specific locations (above, below, left, or right of the display panel) and integrated with the display panel through a unified housing, reducing structural complexity while maintaining monitoring accuracy
Solution Approach 2:
The patent specifies precise positioning requirements for the optical module relative to the display panel edges (e.g., distance from left/right edges: 0.05a to 0.45a, distance from upper/lower edges: 0 to 0.5b). These localized positioning constraints optimize the optical module's information collection accuracy without requiring complex overall structural design
2Volume of moving object
If the optical module is integrated with the display panel, then component space is reduced, but the positioning precision becomes more difficult to achieve
Solution Approach 1:
The patent establishes predetermined positioning relationships between the optical module and display panel through design specifications (e.g., symmetric positioning relative to display panel edges, specific distance ranges). These pre-defined positioning requirements guide the manufacturing process to achieve precise integration while minimizing component space
Solution Approach 2:
The patent allows flexible positioning of the optical module at different locations (above, below, left, or right of the display panel) depending on specific vehicle interior layouts and monitoring requirements. This asymmetric positioning flexibility enables space optimization while maintaining manufacturing feasibility through standardized mounting interfaces
Data Source
AI summary
The present invention provides an in-vehicle display device, an in-vehicle display system, and a vehicle. The in-vehicle display device includes a display panel and an optical module. In a top view of the in-vehicle display device, a distance between the optical module and a left edge of the display panel or a distance between the optical module and a right edge of the display panel is froma2-Ltan(α2)+L′2toa2+Ltan(α2)-L′2,a distance between the optical module and an upper edge of the display panel is from 0 tob2+Ltan(β2)-L′′2cosθ,and a distance between the optical module and a lower edge of the display panel is fromb2-L tan(β2)-L′′2cos θto b.