Rearview Mirror with Motion Sensor for Mode Switching
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Solution Overview
Problem
Rearview mirrors with display functions require safe and intuitive switching between reflection and display modes, as well as adjustable display ranges, to prevent impairment of safety during vehicle operation.
Innovation Solution
Incorporating a motion sensor to detect user motions and control the switching between mirror and display modes, and to adjust the display range, using a half mirror and a liquid crystal display panel, with a unified operation system that integrates motion detection for safe and intuitive operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rearview mirror with display function is used, then the display function can be provided, but the complexity of operation increases and safety may be impaired
Solution Approach 1:
The patent combines the motion sensor originally intended for driver support with the display switching control, merging two functions into one unified operation system. This allows the same motion sensor to control both driver support operations and display/mirror mode switching, thereby reducing overall system complexity while maintaining versatility
Solution Approach 2:
The motion sensor is designed to serve multiple purposes: it detects driver motions for driver support operations and simultaneously controls switching between display and mirror modes. This multi-functional design eliminates the need for separate control systems, reducing complexity while enhancing adaptability
2Ease of operation
If independent operation systems are used for display switching and display range adjustment, then each function can be controlled independently, but the overall system complexity increases
Solution Approach 1:
The patent merges the control of display switching and display range adjustment into a single unified operation system based on motion sensor detection. By combining these controls, the system maintains ease of operation through intuitive motion-based gestures while reducing the number of independent systems required
3Ease of operation
If motion sensor is used for unified control, then the operation becomes more intuitive and safety is improved, but the device complexity increases
Solution Approach 1:
The motion sensor is designed as a universal control device that handles multiple functions including display switching, mirror mode switching, and display range adjustment. By making the sensor multi-functional, the patent reduces the need for multiple specialized sensors or control mechanisms, thereby maintaining intuitive operation while actually reducing overall device complexity
Data Source
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AI summary
A rearview mirror with a display function (1) includes a display panel (30) that displays a picture of a rear camera (51) of a vehicle, and a half mirror (22) provided in a display surface of the display panel (30). A motion sensor (40) performs motion detection. A switching control unit (108) performs processing of switching a mode to a display mode, in a motion detection result in any direction of directions detected by the motion sensor (40), when the rearview mirror with a display function (1) functions as a mirror mode, and processes the motion detection detected by the motion sensor (40) as a moving instruction of a display range to each of the detected directions, when the rearview mirror with a display function (1) functions as the display mode.