Vehicle Display Control With Shared Frame Buffer and Independent Screens
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Solution Overview
Problem
Existing vehicle display systems face inefficiencies in memory resource consumption and mirroring issues when executing the same application on central information displays (CID) and rear seat entertainment (RSE) individually, leading to difficulties in satisfying driver and passenger needs.
Innovation Solution
A method and device configuration that allow for efficient data sharing between CID and RSE by executing the same application in a single process, using a newly defined frame buffer, and managing touch inputs to prevent mirroring, thereby optimizing memory usage and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same application is executed individually on each display (CID and RSE), then each display can function independently, but memory resource consumption increases
Solution Approach 1:
The patent merges the execution of the same application on multiple displays by implementing a single process that shares data across CID and RSE through a common frame buffer, eliminating redundant memory usage while maintaining independent display functionality
Solution Approach 2:
The frame buffer is designed to serve multiple displays simultaneously, allowing a single memory resource to support both CID and RSE displays, thereby reducing overall memory consumption while maintaining universal access for different display units
2Stability of the object's composition
If a touch input on CID or RSE switches both displays to the same screen in mirroring method, then data consistency is maintained, but it becomes difficult to satisfy the needs of driver and rear seat passenger
Solution Approach 1:
The patent segments the display control by allowing different displays (CID and RSE) to show different content or interfaces simultaneously, enabling the driver and rear seat passenger to access different applications or information types without forcing mirroring mode
Solution Approach 2:
The system dynamically adjusts display content based on user interaction, allowing touch inputs on either display to independently control that specific display while maintaining the ability to switch between mirroring and independent display modes as needed
3Adaptability or versatility
If the same application is processed on multiple displays in separate processes, then each display operates independently, but system complexity increases
Solution Approach 1:
The patent combines multiple display processing into a single process that manages multiple frame buffers, reducing system complexity by eliminating redundant process structures while maintaining the ability to independently control each display
Data Source
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AI summary
Proposed are a device provided in a vehicle and a method for controlling same. A device provided in a vehicle according to one embodiment of the present disclosure comprises: a first module which executes a first application and outputs first video data corresponding to the first application; and a second module which is wired or wirelessly connected to the first module and outputs video data, which is the same as the first video data, at a first timing. The second module is designed to output second video data which is different from the first video data in response to, for example, an event which has occurred at a second timing after the first timing.