Diffused Backlit Display Logo Visibility
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Solution Overview
Problem
Electronic device logos or images can be difficult to discern in well-lit environments and distracting in low-lit environments due to inadequate lighting conditions.
Innovation Solution
A diffused backlit display system is employed, featuring a light source with reflective elements and an optically-transmissive layer that diffuses light through openings in the display panel, creating a silhouette-like light emission pattern to enhance visibility of graphical elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a logo is illuminated using conventional backlighting, then the logo becomes visible, but it becomes distracting in low-lit environments and difficult to discern in well-lit environments
Solution Approach 1:
The patent applies local quality by using a diffuser element positioned specifically behind the logo region to selectively diffuse light only in the logo area, while other regions of the display maintain their original lighting characteristics. This localized diffusion creates a soft, glowing effect for the logo that adapts well to different ambient lighting conditions without affecting the overall display performance.
Solution Approach 2:
The patent implements dynamics by making the logo illumination controllable and adjustable independently from the main display. The logo can be illuminated or deactivated based on ambient light conditions, user preferences, or specific operational modes, allowing the system to adapt dynamically to varying environmental lighting conditions.
2Illumination intensity
If a logo is illuminated brightly to ensure visibility, then the logo is easily seen, but it creates a distracting effect in low-lit environments
Solution Approach 1:
The patent employs color changes by utilizing the diffuser element to soften and redistribute the light spectrum from the logo illumination. This creates a warm, ambient glow that is less visually intrusive and distracting compared to direct, harsh backlighting, while still maintaining adequate logo visibility across different lighting environments.
Solution Approach 2:
The diffuser element acts as an intermediary between the light source and the logo, transforming direct light into a softened, distributed glow. This intermediary component reduces the harshness of direct illumination while maintaining visibility, thereby eliminating the distracting effect in low-lit environments.
3Object-affected harmful factors
If no logo illumination is provided, then there is no visual distraction, but the logo becomes difficult to discern in well-lit environments
Solution Approach 1:
The patent applies preliminary action by pre-positioning the diffuser element behind the logo region during manufacturing. This diffuser is ready to immediately soften and distribute light when the logo illumination is activated, ensuring that the logo is always presented with a softened glow that is visible without being distracting, regardless of ambient lighting conditions.
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 diffused backlit display system improves logo or image visibility across varying lighting conditions, providing a consistent and aesthetically pleasing silhouette-like effect on electronic devices.
Implementation Method 1
light emitted by a light source disposed within display member 18 is emitted through an opening in a panel or support member of display member 18 toward an exterior of electronic device 10 and is diffused by one or more reflective elements 50
Data Source
AI summary
An electronic device comprises a housing having a panel with an opening extending therethrough, a light source disposed within the electronic device and configured to transmit light through the opening, an optically-transmissive layer located on a side of the panel opposite a side of the light source and extending over the opening, and a reflective element disposed on the optically-transmissive layer and located at least partially coincident with a location of the opening.