Mobile Device Infotainment Screen Size Adaptation
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Solution Overview
Problem
Existing methods for integrating mobile device application programs into vehicle infotainment systems fail to ensure a suitable display for drivers, as the user interface appearance varies with different screen resolutions and pixel densities, leading to potential distortions and readability issues.
Innovation Solution
A method where the screen size of the infotainment system is standardized in units of comparable size, allowing the mobile device to determine and compare it with the user interface size, deciding whether to transmit image data to ensure a suitable display, including the use of modified user interfaces for smaller screens to prevent distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the application program is programmed to work with virtual pixels to accommodate different screen resolutions, then the developer burden is reduced and the application can run on different screens, but the user interface may still be distorted or unsuitable for the infotainment system screen
Solution Approach 1:
The system performs preliminary actions by determining the infotainment system screen size in comparable size units before transmitting the user interface, and compares it with the user interface size to decide whether to transmit image data. This preliminary comparison and decision-making process ensures that the user interface is appropriately adapted to the infotainment screen size before display, preventing distortion while maintaining developer ease of use.
2Loss of information
If the user interface is transmitted without size comparison to ensure complete information display, then all content is available, but the interface may be distorted or unreadable on screens of different sizes
Solution Approach 1:
The system implements feedback by comparing the infotainment system screen size with the user interface size in comparable size units, and uses this comparison result to control whether image data is transmitted. This feedback mechanism ensures that user interface information is only transmitted when the screen size is appropriate, preventing distortion while maintaining complete information display.
3Adaptability or versatility
If density-independent pixels are used to abstract screen properties, then the application program becomes portable across different devices, but the specific optical properties of the infotainment system screen are not considered, leading to potential readability issues
Solution Approach 1:
The system performs preliminary determination of the infotainment system screen size in comparable size units before transmitting the user interface, and compares it with the user interface size to decide whether to transmit image data. This preliminary action ensures that device compatibility is maintained while screen readability is preserved by considering the specific optical properties of the infotainment system screen.
Data Source
AI summary
A method for projecting a user interface of an application program provided for a screen of a mobile device is provided onto a screen of an infotainment system arranged in a vehicle. The user interface can be displayed in a manner suitable for the driver of the vehicle if the screen size of the infotainment system is determined in the infotainment system. The screen size is transferred to the mobile device via a data interface, the user interface size of the application program running in the mobile device in the unit of the comparable size is determined in the mobile device. The screen size of the infotainment system is compared with the user interface size of the application program and a decision is made on the basis of the comparison, which image data is transferred from the mobile device to the infotainment system via the data interface.