Display Halo Light Guide for Wide-Angle Visibility
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Solution Overview
Problem
Conventional display devices struggle to provide effective visual notifications at wider viewing angles, particularly when users are not positioned directly in front of the device, as they rely on front-facing displays that are not easily visible from the side.
Innovation Solution
The implementation of a display device with a halo structure that includes a rim and internal light guiding elements, such as a sweep portion and receiving post, which receives light from LEDs and directs, diffuses, or scatters it outwardly along the sides of the device, allowing for broader visibility of notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a front-facing display is used for visual notifications, then the notification can be displayed clearly, but it is not easily visible from the side or at wider viewing angles
Solution Approach 1:
The patent transitions from a front-facing display (single viewing direction) to a halo structure that emits light in multiple directions around the device perimeter. The halo includes light guides positioned at different locations and orientations to direct light outwardly from the sides, enabling visibility from wider viewing angles while maintaining notification clarity.
Solution Approach 2:
The halo is divided into multiple segments including a rim and internal light guides with sweep portions and receiving posts. Each light guide segment is positioned to capture light from LEDs and direct it outwardly from specific portions of the device, collectively providing omnidirectional visibility.
2Adaptability or versatility
If light is directed outwardly from the sides of the device, then visibility from wider angles is achieved, but the light intensity may be reduced compared to front-facing display
Solution Approach 1:
Multiple light guides are combined within the halo structure, each receiving light from LEDs and directing it outwardly. The collective effect of multiple light guides working together maintains sufficient light intensity while achieving wide-angle visibility. The rim and internal structure work as an integrated system to distribute light effectively.
Solution Approach 2:
The light guides act as intermediaries between the light sources (LEDs) and the external environment. The sweep portions and receiving posts of the light guides capture and redirect light from the LEDs outwardly from the device sides, efficiently transferring light energy to achieve visibility at wider angles.
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 enables visual notifications to be visible from a wider range of angles, ensuring users can receive alerts or information without being directly in front of the display, enhancing the device's usability in various applications like thermostats or alert systems.
Implementation Method 1
the receiving post and the sweep portion are configured to receive light emitted by one or more light emitting devices and at least one of guide, direct, diffuse, focus, and scatter light emitted by the one or more light emitting devices out of the display device
Implementation Method 2
at least one of guide, direct, diffuse, focus, and scatter light emitted by the one or more light emitting devices
Implementation Method 3
The halo is at least one of a translucent and a transparent material and is configured to allow light to pass through
Data Source
AI summary
A display device includes a front portion, a rear portion, a halo, and sides extending between the front portion and the rear portion. The front portion, the rear portion, and the sides form an enclosure. The halo includes a rim and an internal structure. The rim is positioned between the front portion and the rear portion. The internal structure is at least partially within the enclosure and includes a sweep portion and a receiving post. The receiving post and the sweep portion are configured to receive light emitted by one or more light emitting devices and at least one of guide, direct, diffuse, focus, and scatter light emitted by the one or more light emitting devices out of the display device.