Vehicle Display Light Barrier Dye Absorption
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Solution Overview
Problem
Display devices with illuminable functional elements in vehicles face issues with stray light contamination between separate elements, leading to unwanted visibility of non-activated features, which is aesthetically and functionally undesirable.
Innovation Solution
A display device structure incorporating a light barrier element with a dye molecularly solved in the rear support layer, positioned vertically between functional elements to absorb or reflect light and prevent scattering, ensuring only intended elements are illuminated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light source is placed behind the display device to illuminate functional elements, then the functional elements become visible and provide information to the driver, but stray light contaminates neighboring functional elements causing unwanted visibility
Solution Approach 1:
A light barrier element is introduced as an intermediary component between the light source and the functional elements. This light barrier element selectively blocks stray light from reaching non-illuminated functional elements while allowing the intended functional elements to be illuminated by the light source, thereby preventing light contamination without compromising the visibility of activated elements.
Solution Approach 2:
The light barrier element is positioned at specific locations corresponding to non-activated functional elements, creating local light blocking properties only where needed. This selective positioning allows the display device to maintain high illumination intensity for activated elements while locally preventing stray light from contaminating inactive elements, thus resolving the contradiction between overall visibility and local light contamination.
2Adaptability or versatility
If multiple functional elements are arranged on the display device to provide comprehensive information, then the information coverage is improved, but light scattering between elements increases causing aesthetic and functional issues
Solution Approach 1:
Light barrier elements are positioned between multiple functional elements to act as mediators that prevent light scattering from one element to another. This allows the display device to maintain a comprehensive arrangement of functional elements for complete information coverage while the light barrier elements selectively block stray light paths between adjacent elements, preventing mutual contamination.
Solution Approach 2:
The display device is segmented into multiple functional zones, each with its own light barrier element. This segmentation allows each functional element to be independently controlled and illuminated without affecting neighboring elements, thus maintaining comprehensive information coverage while eliminating light scattering between elements through spatial separation and individual light management.
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
Effectively reduces or eliminates stray light contamination, maintaining the intended visibility of functional elements while concealing non-activated features, enhancing both functionality and aesthetics.
Implementation Method 1
the light barrier element comprises a dye and is formed in the rear support layer, such that the dye is molecularly solved in the material of the rear support layer
Implementation Method 2
the light barrier element is adapted for reducing or preventing light scattering through the light barrier element
Data Source
Figure 1~2b
Figure 3
AI summary
The invention is directed to a display device (10) with illuminable functional elements (28), comprising: at least one functional layer (14), at least one rear support layer (16), and at least one light barrier element (32), wherein the functional layer (14) comprises at least two functional elements (28a, 28b), that are light transmittance for visible light and are illuminable by at least one light source (30), wherein the rear support layer (16) comprises at least one light barrier element (32), wherein the light barrier element (32) comprises a dye and is formed in the rear support layer (16), such that the dye is molecularly solved in the material of the rear support layer, and wherein the light barrier element (32) is adapted for reducing or preventing light scattering through the light barrier element (32). Further, the invention is directed to a method for producing the above display device.