Fabric-Covered Speaker Display Structure for Uniform Light Emission
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Solution Overview
Problem
Integrating light-emitting components into voice-controlled assistant devices with a fabric layer is challenging due to the fabric imparting an undesired appearance to emitted light, which hinders effective information conveyance to the user.
Innovation Solution
The electronic device incorporates a housing with a speaker, a display featuring light-emitting components mounted on a substrate, an opaque support structure, a diffuser, and a display cover layer with foam interposed between the support structure and the cover layer, along with varying orientations of light-emitting component groups and the use of thermistors to manage temperature-induced luminance changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If light-emitting components are integrated into a voice-controlled assistant device with a fabric layer, then the device functionality is enhanced, but the fabric imparts an undesired appearance to emitted light
Solution Approach 1:
A diffuser is introduced as an intermediary component between the light-emitting components and the fabric layer. The diffuser has a first surface facing the light-emitting components and a second surface facing the fabric layer, allowing it to scatter and redistribute the light to eliminate the undesired appearance caused by the fabric while maintaining the functionality enhancement
2Adaptability or versatility
If light-emitting components are integrated into a voice-controlled assistant device with a fabric layer, then the device functionality is enhanced, but light leakage and color non-uniformity occur
Solution Approach 1:
The diffuser acts as a mediator that controls light propagation, preventing light leakage through proper light redistribution. It also addresses color non-uniformity by evenly scattering light from the light-emitting components across the fabric layer, ensuring uniform color perception
Solution Approach 2:
The diffuser provides localized light scattering properties at different positions, with its first surface receiving light from light-emitting components and its second surface interacting with the fabric layer, creating locally optimized light quality that prevents both leakage and color non-uniformity
3Adaptability or versatility
If light-emitting components are integrated into a voice-controlled assistant device with a fabric layer, then the device functionality is enhanced, but manufacturing complexity increases
Solution Approach 1:
The diffuser serves multiple functions simultaneously: it controls light appearance quality, prevents light leakage, addresses color non-uniformity, and provides a structural interface between the light-emitting components and the fabric layer. This multi-functionality reduces the need for additional separate components, thereby managing manufacturing complexity
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 configuration enhances the display's ability to convey information effectively by minimizing light leakage and color non-uniformity, ensuring consistent and uniform light emission despite temperature variations.
Implementation Method 1
a diffuser that is mounted to the opaque support structure and that overlaps the light-emitting components
Implementation Method 2
foam that is interposed between the opaque support structure and the display cover layer
Implementation Method 3
a first thermistor associated with the red light-emitting diode, a second thermistor associated with the green light-emitting diode, and a third thermistor associated with the blue light-emitting diode
Data Source
AI summary
An electronic device such as a voice-controlled speaker device may have a cylindrical shape. The electronic device may include a housing, a speaker in the housing configured to emit sound, and a display in the housing. The display may include a substrate, light-emitting components mounted on the substrate, an opaque support structure mounted on the substrate, a diffuser that is mounted to the opaque support structure and that overlaps the light-emitting components, a display cover layer that overlaps the diffuser, and foam that is interposed between the opaque support structure and the display cover layer. The light-emitting components may be arranged in groups that have the same layout and orientations that vary as a function of angular position relative to the center of the display. The foam and/or an adhesive layer may be formed from two or more discrete pieces that have footprints with complementary protrusions.