Vehicle Door Camera Display Aspect Adjustment
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Solution Overview
Problem
The existing image display apparatuses for vehicles often mislead occupants by displaying undesired areas when the door or housing is in an open state, as the camera direction changes, leading to misunderstandings about the external circumstances.
Innovation Solution
An image display apparatus with a controlling device that adjusts the display aspect when the door or housing changes state, ensuring a larger angle of view is displayed when the door is open compared to when it is closed, and performing alert displays to differentiate between closed and open states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera direction changes with door movement to maintain imaging of the rear side area, then the camera can continuously monitor the desired area when the door is closed, but the camera images an undesired area when the door is opened
Solution Approach 1:
The display controlling unit dynamically adjusts the display aspect ratio based on the door state. When the door is opened, the system changes from displaying the entire captured image to displaying only a predetermined area (excluding the door side surface), thereby adapting the display to the changed camera orientation while maintaining information accuracy.
Solution Approach 2:
The system changes the display parameter (display aspect ratio) according to the door state parameter. The display controlling unit receives door state information and switches between different display modes (full image display vs. cropped area display), using parameter changes to resolve the contradiction between continuous monitoring and accurate representation.
2Ease of operation
If the camera direction changes with door movement, then the camera follows the door position, but the occupant may misunderstand the displayed image as showing the desired area when it actually shows the door side surface
Solution Approach 1:
The display controlling unit uses feedback from the door state detection to adjust the display content. When the door is opened, the system receives feedback about the door position and automatically switches to displaying only the predetermined area, preventing the occupant from misinterpreting the door side surface as the external circumstance.
3Quantity of substance
If the display shows the entire captured image including door side surface, then all captured information is displayed, but the occupant cannot distinguish between desired external area and undesired door surface
Solution Approach 1:
The display is segmented into different regions based on door state. When the door is opened, the display controlling unit segments the image to show only the predetermined area (external circumstance) while excluding the door side surface, thereby separating useful information from misleading information.
Data Source
Figure 1
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Figure 4
AI summary
An image display apparatus has: an imaging device (11L, 11R) that is placed at a door (15L, 15R) of a vehicle (1) and that is configured to image an external circumstance of the vehicle; a displaying device (14) that is configured to display an external image captured by the imaging device; and a controlling device (132, 133) that is configured to control an display aspect of the display when the display displays the external image, the controlling device is configured to control the display aspect such that the display aspect when the door is in an opened state is different from the display aspect when the door is in a closed state.