Flexible Display Audio Routing for Seamless Signal Output
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Solution Overview
Problem
Flexible displays in electronic devices, such as rollable or foldable smartphones, often experience interference between audio output modules when their state changes, leading to temporary suspension of audio signal output.
Innovation Solution
An electronic device with a display module that can be bent or unfolded, multiple audio output modules, and a processor that sets these modules to an output-available state and determines the appropriate module for audio signal transmission based on the display's flex state, ensuring seamless audio output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If routing is reset when changing audio output module, then the changed audio output module can receive audio signal, but audio output is temporarily suspended during routing reset
Solution Approach 1:
The system performs preliminary actions by maintaining the audio signal in a buffered state and pre-configuring routing paths before switching audio output modules. This allows the audio signal to be continuously available and immediately redirected to the new module without suspension or interruption.
2Reliability
If multiple audio output modules are used to support flex states, then audio output can be maintained during display state changes, but device complexity increases
Solution Approach 1:
The audio system is designed with multiple audio output modules that can serve different functions based on display flex states. The same audio modules can be used for both normal operation and during flex state transitions, providing universal functionality that maintains audio output stability without requiring completely separate dedicated components for each state.
Data Source
AI summary
An example electronic device may include a display module which is bent or unfolded, and includes a display for providing a content; a plurality of audio output modules for outputting an audio signal; an audio module for converting the audio signal to an analog signal or converting an analog signal to the audio signal; and a processor electrically connected to the display module, the plurality of audio output modules, and the audio module. The processor is configured to set the plurality of audio output modules to an output-available state, determine an audio output module to output the audio signal from among the plurality of audio output modules, on the basis of a flex state of the display, and transmit the audio signal, which is converted to an analog signal by the audio module, to the plurality of audio output modules, and the audio output module, which is determined to output the audio signal, from among the plurality of audio output modules outputs the audio signal converted to the analog signal.