OLED Display Loudspeaker Vibration for Vehicle Audio Space
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Solution Overview
Problem
Integrating an audio system with multiple speakers in a vehicle is challenging due to limited space, requiring significant assembly space and processing power to provide a satisfying listening experience for all passengers while maintaining cost-effectiveness.
Innovation Solution
The use of display loudspeakers with OLED panels and exciters, which are thin, space-efficient, and capable of vibrating to reproduce audio signals, allowing for individual listening zones with reduced mounting space and cabling requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of speakers is increased to provide a satisfying listening experience for all passengers, then the listening quality is improved, but the assembly space and cost increase
Solution Approach 1:
The patent combines display and loudspeaker functions into a single integrated component. The display panel serves dual purposes: visual information display and audio reproduction through vibration of the panel itself, eliminating the need for separate speaker units and reducing assembly space while maintaining listening quality
Solution Approach 2:
The display panel is designed to perform multiple functions simultaneously: it displays visual content and reproduces audio signals through vibration. This multi-functionality allows one component to replace what would traditionally require separate display and audio devices, reducing the number of components needed in the vehicle
2Adaptability or versatility
If the number of speakers is increased to create individual listening zones, then the audio personalization is improved, but the device complexity and cabling requirements increase
Solution Approach 1:
The audio system is segmented into multiple independent display-loudspeaker units, each capable of receiving and processing audio signals independently. This segmentation allows different audio content to be played to different passengers simultaneously, enabling audio personalization while keeping each unit relatively simple in design
3Reliability
If traditional electrodynamic speakers are used, then the audio reproduction is reliable, but the mounting space and weight increase
Solution Approach 1:
The patent replaces the traditional electrodynamic speaker mechanism with a vibration-based system using display panels. Instead of using electromagnetic coils and diaphragms, the system vibrates the display panel itself to reproduce audio signals, significantly reducing the mechanical complexity and space requirements while maintaining audio reproduction capability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a satisfying listening experience for all vehicle occupants with minimal assembly space, reduced wire usage, and cost-effectiveness, while enabling personalized audio content and improved engine order cancellation efficiency.
Implementation Method 1
at least one exciter coupled to the OLED panel and configured to vibrate the OLED panel to reproduce the audio signal
Data Source
AI summary
An audio system arranged in a listening environment in a vehicle comprises at least one multimedia unit configured to output an audio signal, and at least one display loudspeaker, wherein each of the at least one display loudspeaker is coupled to the at least one multimedia unit and receives the audio signal from the at least one multimedia unit, and each of the at least one display loudspeaker comprises an OLED panel and at least one exciter coupled to the OLED panel and configured to vibrate the OLED panel to reproduce the audio signal.