Flexible Display Audio Tuning for Sliding and Rolling Devices
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Solution Overview
Problem
In electronic devices with flexible displays, the variable distance between speakers and microphones due to structural changes affects audio performance, necessitating dynamic audio tuning to maintain optimal sound quality.
Innovation Solution
The electronic device includes a housing with audio modules on opposite sides, a flexible display that moves relative to the housing, and a processor that adjusts audio signals based on the display's exposure to correct audio performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is made flexible and movable relative to the housing, then the portability and display flexibility are improved, but the relative distance between the speaker and microphone changes, causing audio performance degradation
Solution Approach 1:
The patent applies dynamics by making the audio parameter adjustment system adaptive to the changing structural configuration. The processor dynamically identifies the display state (folded, unfolded, rolled, or slided) and adjusts audio parameters accordingly, transforming a static audio system into a dynamic one that responds to structural changes. This resolves the contradiction by allowing the display to be flexible while maintaining audio performance through real-time parameter adaptation.
Solution Approach 2:
The patent implements parameter changes by modifying audio signal parameters (such as equalization, volume, or spatial audio settings) based on the identified display configuration. When the display moves between different states, the processor changes the audio parameters to compensate for altered speaker-microphone distances and positions. This directly addresses the technical contradiction by using parameter adjustment to maintain audio reliability despite structural flexibility.
2Reliability
If the display structure is fixed, then the audio tuning parameters remain stable, but the device lacks the flexibility and portability provided by movable displays
Solution Approach 1:
The patent employs feedback by having the processor continuously identify the display's current configuration state and use this information to adjust audio parameters. The system monitors the structural state (through sensors or processor analysis) and feeds this information back into the audio processing chain, creating a closed-loop system that maintains audio stability despite structural changes. This feedback mechanism allows the device to be flexible while preserving audio tuning stability.
3Reliability
If audio parameters are adjusted dynamically based on display position, then audio performance is maintained, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-defining multiple sets of audio parameters corresponding to different display configurations (folded, unfolded, rolled, slided states). Instead of calculating optimal parameters in real-time, the system has predetermined parameter sets ready for each state. When a configuration change is detected, the processor simply switches to the appropriate pre-configured parameter set, reducing computational complexity while maintaining audio performance.
Data Source
AI summary
An electronic device may include a housing, a first audio module positioned on a first side surface of the housing and a second audio module positioned on a second side surface of the housing, a display which includes a touch sensor panel, and moves with respect to the housing so at least a part of the display is exposed from the inside of the housing to the front side of the electronic device, and processor operatively connected to the display, wherein the processor is configured to identify whether the display moves by sliding or rolling with respect to the housing to allow at least a part of the display to be exposed, and correct an audio signal with respect to the at least one first audio module and the at least one second audio module corresponding to the display being moved.