Vibration Actuator Display Speaker Integration Slim Chassis
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Solution Overview
Problem
The integration of narrow bezel technology in information handling systems has eliminated the external chassis space typically used for speaker assemblies, necessitating a new location for sound-generating devices without increasing the chassis thickness.
Innovation Solution
Incorporating a vibration actuator within the chassis lid that causes the digital display to vibrate, generating audible sound or vibrational tactile feedback, thereby eliminating the need for external speakers or enhancing available speaker options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If narrow bezel technology is used to eliminate external chassis space, then the chassis thickness is reduced and form factor is slimmed, but space for traditional speaker assemblies is eliminated
Solution Approach 1:
The patent combines the speaker functionality with the digital display by integrating a vibration actuator that causes the display to vibrate and generate sound. This merging of functions eliminates the need for separate speaker assemblies while maintaining sound generation capability within the constrained chassis volume.
Solution Approach 2:
The digital display serves multiple functions: it displays visual information and simultaneously acts as a sound-generating surface through vibration actuation. This multi-functionality allows the system to maintain speaker capabilities without dedicating separate space for traditional speaker assemblies.
2Volume of moving object
If traditional speaker assemblies are removed to maintain slim form factor, then chassis thickness is reduced, but sound generation capability is compromised
Solution Approach 1:
The patent replaces the traditional mechanical speaker system (with diaphragms and voice coils) with a vibration actuator system that uses electromagnetic or piezoelectric actuation to vibrate the digital display surface. This substitution maintains sound generation capability while eliminating the need for bulky mechanical speaker components.
Solution Approach 2:
The system changes the operational parameters of the digital display by inducing controlled vibrations at audible frequencies. By transforming the display from a static visual output device to a dynamic vibration-based sound generation surface, the system achieves speaker functionality without traditional speaker hardware.
3Volume of moving object
If vibration actuator is integrated within chassis lid, then space for loudspeakers is eliminated, but tactile user experience is enhanced
Solution Approach 1:
The patent utilizes mechanical vibration of the digital display surface to generate both audible sound and tactile feedback. The vibration actuator creates controlled oscillations that users can feel through the display surface, providing enhanced tactile interaction while eliminating the need for separate speaker assemblies.
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 maintains a slim form factor while providing enhanced tactile user experience and sound generation, negating the requirement for bulky diaphragm components and additional space for loudspeakers.
Implementation Method 1
Incorporating a vibration actuator within the chassis lid that causes the digital display to vibrate, generating audible sound or vibrational tactile feedback
Data Source
AI summary
A method of fabricating an information handling system chassis may comprise operably connecting an A-cover housing a digital display to a chassis base, via a hinge, forming an opening into a space between the A-cover and the digital display, inserting a first interchangeable vibration actuator housing a first vibration actuator, selected from a plurality of different types of vibration actuators into the opening of the A-cover, such that a first surface of the first vibration actuator housing lies substantially coplanar with the rear surface of the A-cover, and a second surface of the first vibration actuator housing is situated adjacent the rear surface of the digital display. The method may also include transmitting code instructions to the first vibration actuator, and transducing the code instructions, via the first vibration actuator, to cause a first corresponding movement of at least a portion of the digital display to produce a vibration.