Light Guide Reflective Coating for Display Rigidity
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Solution Overview
Problem
Existing information handling system displays face challenges in maintaining rigidity while preserving optical properties, particularly when using adhesives to laminate components like light guides and reflective films, which can impair light reflection.
Innovation Solution
A method involving a reflective coating applied directly to the back surface of the light guide, eliminating contact with adhesives and maintaining optical performance, allowing for increased rigidity and compactness without compromising display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is used to laminate light guide to reflective film and display housing, then rigidity of display assembly is improved, but optical properties of light guide are impaired
Solution Approach 1:
The patent segments the display assembly into distinct components: light guide, reflective film, and display housing, allowing each to be optimized independently. The light guide can be made thinner while maintaining its optical function, as the reflective film provides the necessary light reflection without requiring direct adhesive contact that would compromise the light guide's optical properties.
Solution Approach 2:
The patent introduces an intermediary reflective film between the light guide and the display housing. This reflective film serves as a mediator that provides structural support and rigidity to the overall assembly while allowing the light guide to maintain its optical integrity. The reflective film reflects light back through the light guide without requiring adhesive that would impair the light guide's optical properties.
2Length of moving object
If components are made thinner for aesthetic purposes, then display appearance is improved, but structural rigidity deteriorates
Solution Approach 1:
The patent employs a composite structure combining multiple thin layers (light guide, reflective film, housing) that together provide the necessary rigidity. Each layer can be optimized for its specific function - the light guide for optical performance, the reflective film for light reflection and structural support - while the composite assembly as a whole achieves the required mechanical strength without increasing individual component thickness.
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 enhances the rigidity of the display assembly while maintaining the optical properties, enabling thinner and more robust displays without impairing light reflection, thus addressing the need for improved structural integrity without sacrificing aesthetics or functionality.
Implementation Method 1
the first surface receives light from the light source and transmits the light towards the panel display and the second surface of the light guide
Implementation Method 2
a layer of reflective material in contact with the first surface of the light guiding element, wherein the first surface receives light from the light source and transmits the light towards the panel display and the second surface of the light guide
Data Source
AI summary
A display assembly is disclosed providing a panel display, a light guiding element having a first surface and a second surface and a light source operable to illuminate the light guiding element. The display further includes a layer of reflective material in contact with the first surface of the light guiding element, wherein the first surface receives light from the light source and transmits the light towards the panel display and the second surface of the light guide.