Vehicle Display Device Light Blocking Layer Integration
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Solution Overview
Problem
Integration of a pointer-type instrument and a display on a single protective plate in vehicle display devices can lead to adhesiveness issues due to air bubbles between reflected-light suppression and bonding layers, and visibility is impaired by light interference and information overlap.
Innovation Solution
A vehicle display device with a planar protective plate featuring a light blocking layer between the pointer-type instrument and the display, and a light-transparency bonding layer on the rear surface, along with a second reflected-light suppression layer on the front surface, preventing layer lamination and light mixing, and utilizing light blocking walls to separate emitted light from different instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a second reflected-light suppression layer is formed on the rear surface of the protective plate to suppress reflected light from the pointer-type instrument, then light reflection is reduced, but air bubbles may be included between the reflected-light suppression layer and the bonding layer, causing adhesiveness loss and display detachment
Solution Approach 1:
The patent extracts the second reflected-light suppression layer from direct contact with the bonding layer by positioning it only on the pointer-type instrument area, leaving the bonding area free of this layer. This prevents air bubbles from forming at the interface between the suppression layer and bonding layer, maintaining adhesiveness while still suppressing reflected light where needed.
Solution Approach 2:
The second reflected-light suppression layer is applied locally only to the pointer-type instrument area rather than uniformly across the entire rear surface. This localized application suppresses reflected light from the pointer instrument while avoiding interference with the bonding process in other areas.
2Shape
If multiple display instruments including pointer-type instrument and display are arranged adjacently on a single protective plate to create integrated attractive appearance, then external appearance is improved, but light from different instruments interferes with each other and important information becomes buried
Solution Approach 1:
The patent segments the rear surface of the protective plate into distinct functional areas: a pointer-type instrument area with second reflected-light suppression layer, a display area without the suppression layer, and a light blocking layer separating them. This segmentation prevents light interference between instruments while maintaining their integrated appearance from the front.
Solution Approach 2:
The light blocking layer acts as an intermediary element between the pointer-type instrument and the display, preventing light from one instrument from interfering with the other. This mediator maintains the integrated appearance while ensuring clear visibility of information from both instruments.
3Shape
If pointer-type instrument with three-dimensional effects is combined with display on single protective plate to create attractive external appearance, then external appearance is improved, but reflected light from pointer instrument may interfere with display visibility
Solution Approach 1:
The patent extracts the second reflected-light suppression layer application to only the pointer-type instrument area, separating it from the display area. This allows the pointer instrument to maintain its three-dimensional attractive appearance while suppressing reflected light, without adding suppression layers that would interfere with display visibility.
Solution Approach 2:
The light blocking layer serves as an intermediary that prevents reflected light from the pointer-type instrument from interfering with the display. This mediator enables both instruments to coexist on the same protective plate with their respective visual characteristics preserved.
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 visibility and attractiveness by preventing air bubbles, maintaining adhesiveness, and ensuring prominent display of critical vehicle information like travel speed, while maintaining an attractive external appearance.
Implementation Method 1
a first reflected-light suppression layer is formed on a front surface
Implementation Method 2
the protective plate includes a light blocking layer for concealing a space between the pointer-type instrument and the display
Implementation Method 3
a light-transparency bonding layer covering and bonding a display surface of the display
Implementation Method 4
a second reflected-light suppression layer covering the front surface of the pointer-type instrument
Data Source
AI summary
Provided is a vehicle display device which exhibits high visibility, and which has an attractive external appearance. A vehicle display device according to the present invention is provided with: pointer-type instruments (a speedometer and an engine tachometer; a display disposed next to the pointer-type instruments; and a planar protective plate which has, formed on the front surface thereof, a first reflected-light suppression layer. The protective plate is disposed so as to cover the front surfaces of the display and the pointer-type instruments. Furthermore, in the protective plate, light-blocking layers for concealing spaces between the display and the pointer-type instruments are formed. Moreover, a light-transmitting bonding layer, which covers and bonds a display surface of the display, and second reflected-light suppression layers, which cover the front surfaces of the pointer-type instruments, are formed on the rear surface of the protective plate so as to not overlie each other.