Fluorescing Holder for Uniform Backlighting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display holders and backlit components face challenges with color variation and heat generation from incandescent lamps, and limited color options with LED backlighting, which affect visibility and aesthetic appeal, especially in low-light environments.
Innovation Solution
A holder with a one-piece, light-transmissive polymeric material incorporating diffusing substances and fluorescing materials that absorb light of a first spectrum and emit light of a second spectrum, providing consistent backlighting and minimizing color variation by ensuring a generally equal path length for light through the holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If incandescent lamps are used for backlighting, then sufficient illumination is provided, but heat generation becomes a concern
Solution Approach 1:
The patent replaces the incandescent lamp (thermal radiation source) with an LED (electroluminescence source) combined with a fluorescing material. This substitution eliminates the need for high-temperature operation while maintaining illumination effectiveness, as LEDs operate at much lower temperatures and the fluorescing material converts LED light to the desired spectrum without generating excessive heat.
Solution Approach 2:
The patent changes the spectral parameters by using a fluorescing material that absorbs light at one wavelength and emits at another. This allows optimization of the illumination spectrum while using a more energy-efficient light source, reducing heat generation while maintaining or improving illumination quality.
2Temperature
If LED backlighting is used, then heat generation is reduced, but color options are limited
Solution Approach 1:
The patent introduces a fluorescing material as an intermediary between the LED light source and the display. This material absorbs the LED's light output and re-emits it at different wavelengths, enabling color conversion and expansion of available color options while maintaining the energy efficiency and low heat generation of LED technology.
Solution Approach 2:
The patent utilizes the property of fluorescing materials to change the spectral parameters of light. By selecting appropriate fluorescing materials with different emission characteristics, various colors can be achieved from a single LED source, thereby providing versatile color options without sacrificing the thermal advantages of LEDs.
3Ease of manufacture
If non-uniform path length is used for light through the holder, then manufacturing is simplified, but color variation increases
Solution Approach 1:
The patent applies the fluorescing material uniformly throughout the holder structure, ensuring that light traveling through different path lengths within the holder experiences consistent spectral transformation. This uniform distribution of the fluorescing material compensates for variations in geometric path length, maintaining color consistency while allowing for relatively simple manufacturing of the holder shape.
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 solution ensures consistent and efficient backlighting with reduced color variation across the display area, improving visibility and aesthetic appeal in various lighting conditions while minimizing heat generation.
Implementation Method 1
a one-piece holder configured to support the backlit component. The holder having a first portion positioned between the at least one illumination source and the backlit component. The first portion including a fluorescing material which absorbs at least a portion of the light having the first spectrum and emits light having a second spectrum
Data Source
AI summary
An holder or support for a backlit component is disclosed which provides display lighting for the backlit component. The holder may be a one-piece holder and may be made from a polymeric material including one or more fluorescing materials and/or diffusing substances. A trim plate for a backlit display is disclosed. The trim plate may have a front face which provides both a solid support for graphic indicia and display lighting for the graphic indicia.