Display Lens Edge Illumination for Color-Coded Alerts
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Solution Overview
Problem
Inexpensive electronic devices with monochrome displays lack effective integration of contrasting color, as previous methods using discrete LEDs do not clearly associate color indicators with the displayed information.
Innovation Solution
A display lens system that illuminates the edge portions of the display screen using angled edges with a reflective coating, allowing colored light to be projected from the edges based on the information being displayed, such as red for critical levels and green for acceptable ranges, using a tri-color LED or multiple single-color LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If discrete colored LEDs are used to provide contrasting color indicators, then color information can be displayed, but the LEDs are separate from the display screen and users cannot readily associate the colored LEDs with the information being presented
Solution Approach 1:
The patent merges the color indicator function with the display screen by integrating LEDs within the display assembly and using a lens to project color from the screen's edge. This combines previously separate components (display and color indicator) into a unified structure, allowing users to directly associate color with displayed information while maintaining a compact design
2Adaptability or versatility
If discrete colored LEDs are used to provide contrasting color, then color information can be displayed, but this increases device cost and complexity
Solution Approach 1:
The display assembly is designed to perform multiple functions: displaying information and providing color indicators. The lens structure serves dual purposes by both protecting the display and projecting color from the edge. This multi-functionality reduces overall device complexity while maintaining color display capability
Solution Approach 2:
The patent combines the display screen, LEDs, and lens into a single integrated assembly. The LEDs are positioned within the display assembly rather than as separate components, and the lens serves both protective and optical functions. This merging reduces component count and simplifies device structure while enabling color display versatility
3Ease of manufacture
If monochrome displays are used to keep devices inexpensive, then device cost is reduced, but contrasting color information cannot be effectively conveyed
Solution Approach 1:
The patent applies color locally at the edge of the display screen rather than requiring full-color display capabilities across the entire screen. By projecting color from a specific location (the edge) using a lens, the system adds color information capability to an otherwise monochrome display at minimal cost, maintaining ease of manufacture while enhancing information conveyance
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 method provides an inexpensive and intuitive way to incorporate color into electronic device displays, enhancing usability by clearly indicating critical information through color-coded alerts without the need for separate LEDs.
Implementation Method 1
angled edges with a reflective coating, allowing colored light to be projected from the edges
Data Source
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Figure 5A~5C
AI summary
Embodiments provide systems, methods and apparatus for illuminating a portion of the face of a display lens proximate to and along one or more edges of the display lens. The display lens includes a transparent lens having four edges and a face surface. At least one edge includes an angle relative to the face surface configured to reflect light in the lens out of the face surface. Numerous other aspects are provided.