Display Lighting Control via Audio Signal Processing
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Solution Overview
Problem
Conventional display apparatuses lack an integrated lighting component, leading to difficulties in achieving accurate lighting control in ambient noise conditions and fail to provide immersive user experiences, especially when users wear headphones, as they rely on external sound detection and volume-based brightness control.
Innovation Solution
A display apparatus with an integrated lighting system that includes a processor to control light sources based on audio signals, specifically high-frequency components, allowing for interactive lighting effects that enhance user immersion by flickering and adjusting brightness independently of ambient noise and volume settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional display apparatuses use external sound detection for lighting control, then lighting effects can be achieved, but accurate lighting control cannot be performed in ambient noise conditions
Solution Approach 1:
The patent extracts the harmful ambient noise from the sound detection process by using a microphone positioned to face away from the display screen, thereby capturing audio signals primarily from the speaker rather than environmental noise. This directional extraction allows accurate lighting control while minimizing interference from surrounding sounds.
Solution Approach 2:
The patent introduces a processor as an intermediary that analyzes audio signals and determines whether to activate lighting effects based on content type and audio characteristics. This intermediary layer filters out ambient noise interference by processing only relevant audio signals from the speaker, enabling precise lighting control in noisy environments.
2Ease of operation
If volume-based brightness control is used, then lighting brightness can be adjusted, but user focus on content is reduced when volume is increased
Solution Approach 1:
The patent changes the control parameter from volume level to content-type-based lighting activation. Instead of directly linking brightness to volume, the system analyzes audio content characteristics and selectively activates lighting effects only for specific content types, maintaining user focus while providing operational lighting control.
Solution Approach 2:
The patent implements dynamic lighting control where the processor continuously analyzes audio signals and adjusts lighting activation in real-time based on content type. This dynamic adjustment allows the system to provide lighting effects when appropriate while maintaining darkness during content consumption, adapting to user needs without requiring manual volume-based control.
3Adaptability or versatility
If separate lighting equipment is purchased and attached to the monitor, then lighting effects can be obtained, but device complexity and installation difficulty increase
Solution Approach 1:
The patent merges the lighting component with the display apparatus, integrating the microphone, processor, and lighting element into a single unified device. This combination eliminates the need for separate lighting equipment and simplifies the system while maintaining lighting effect capabilities through coordinated control of audio and lighting functions.
Solution Approach 2:
The patent creates a multi-functional display apparatus that simultaneously performs display, audio output, and lighting control functions. The integrated system uses the existing speaker and microphone for audio processing while adding lighting capability, making the device universally functional without requiring additional separate equipment.
4Ease of operation
If lighting component is integrated into the display apparatus, then ease of operation is improved, but manufacturing complexity increases
Solution Approach 1:
The patent segments the lighting control function into a distinct module with its own microphone, processor logic, and lighting element. This segmentation allows the lighting subsystem to be manufactured and tested independently before integration, reducing overall manufacturing complexity while maintaining ease of operation through unified control.
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
The solution provides an immersive user experience by accurately controlling lighting effects in response to audio signals, enhancing interaction with screen content and reducing eyestrain, even in changing environments.
Implementation Method 1
a light source disposed at one side of the display panel
Data Source
Figure 1A~1B
Figure 2~4
Figure 5~6B
AI summary
A display apparatus and a controlling method thereof are provided. The display apparatus may include: a display panel that displays a screen; a light source disposed at one side of the display panel; an audio input that receives an audio signal; and a processor that flickers the light source in response to the received audio signal.