Vehicle Display Control Using Windshield Projection and Scenario Switching
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Solution Overview
Problem
Current vehicle display systems require drivers to look away from the road to view operational state information, leading to safety concerns due to distraction from driving.
Innovation Solution
A method and device for dynamically controlling a vehicle display, which acquires driving parameters to determine the optimal display mode and content, switching between projection and screen displays based on scenarios like light intensity, obstacle presence, and speed, ensuring critical information is displayed without requiring the driver to look away from the road.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If operational state information is displayed on the instrument panel, then the driver can view vehicle parameters, but the driver must look away from the road causing safety issues
Solution Approach 1:
The patent transitions the display from the traditional instrument panel (2D flat surface) to the windshield (3D transparent surface in the driver's field of view). This dimensional change allows information to be presented in the driver's line of sight without requiring head movement, resolving the contradiction between information access and driving safety.
Solution Approach 2:
The patent introduces a display device as an intermediary between the driver and the instrument panel. This intermediary projects or displays information on the windshield, acting as a mediator that delivers vehicle information to the driver without requiring the driver to shift attention from the road.
2Loss of information
If the display shows all operational information, then complete vehicle status is provided, but the display becomes complex and distracting
Solution Approach 1:
The patent applies local quality by displaying different types of information in different regions or formats on the windshield. Critical safety information is presented prominently and simply, while less critical information is displayed with lower priority or in condensed formats, reducing overall display complexity while maintaining information completeness.
Solution Approach 2:
The patent segments the display information into different categories or zones on the windshield. By dividing the information hierarchy and presenting it in organized segments rather than a single complex display, the system provides complete vehicle status while maintaining visual simplicity and reducing driver cognitive load.
3Adaptability or versatility
If the display mode is fixed, then the device structure is simple, but the display cannot adapt to different driving scenarios
Solution Approach 1:
The patent implements dynamics by making the display mode adjustable and adaptable to different driving scenarios. The display device can dynamically change its presentation mode (e.g., projection mode, transparent mode, or off) based on detected conditions such as ambient light, vehicle speed, or driver behavior, providing versatility without requiring a completely complex system architecture.
Data Source
AI summary
A method for controlling a display device of a vehicle is disclosed. The display device is configured to acquire data information sent by an external terminal by communicating with the external terminal. The method includes: acquiring a driving parameter collected by the vehicle; determining a target display mode and a target display content based on the driving parameter, wherein the target display mode comprises at least one of a projection display mode or a screen display mode; and displaying the target display content based on the target display mode. The method may also include determining a current driving scenario type of the vehicle or determining a target priority of the target display content.