Rearview Mirror Structure for Full-Screen Touch Without Added Thickness
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Solution Overview
Problem
Intelligent rearview mirrors with streaming media applications face challenges in thickness and weight due to the addition of a touch sensing layer, which compromises their design and functionality.
Innovation Solution
A rearview mirror design incorporating a ring-shaped shielding layer and touch sensing layer on a second transparent substrate, with the shielding layer being electrically insulated from the touch sensing layer, and integrating a display structure layer with a transflective layer on a first transparent substrate, all housed within a plastic frame, allowing for a full-screen display and touch function while reducing overall thickness and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch sensing layer is attached to the display through an optical adhesive layer, then the rearview mirror gains touch functionality, but the thickness and weight increase
Solution Approach 1:
The patent combines the touch sensing layer and the display layer into a single integrated structure, eliminating the need for separate optical adhesive layers and reducing the number of discrete components. This merging approach maintains touch functionality while reducing overall weight and thickness.
Solution Approach 2:
The patent employs thin-film technology for the touch sensing layer, using flexible and lightweight materials that provide touch sensitivity without adding significant weight. The thin-film structure allows the touch layer to be integrated directly with the display without requiring thick adhesive layers.
2Ease of operation
If a touch sensing layer is attached to the display through an optical adhesive layer, then the rearview mirror gains touch functionality, but the thickness increases
Solution Approach 1:
The patent merges the touch sensing layer and display layer into an integrated structure, eliminating multiple separate layers and adhesive interfaces. This reduces the overall thickness while preserving touch functionality through direct integration.
Solution Approach 2:
The patent uses ultra-thin film structures for the touch sensing layer, enabling touch functionality with minimal thickness addition. The thin-film approach allows the touch layer to be directly bonded to the display without requiring thick optical adhesive layers.
3Area of stationary object
If the display area is as large as the mirror surface, then the field of view is improved, but the structure becomes more complex and heavier
Solution Approach 1:
The patent makes the entire mirror surface serve dual functions: as a reflective mirror surface and as a display area. This multi-functionality allows the full mirror surface to be utilized for display purposes without adding separate heavy components, as the same structure performs both mirror and display functions.
Solution Approach 2:
The patent combines the mirror substrate and display structure into a single integrated unit, where the display layers are deposited or attached directly onto the mirror surface. This merging eliminates the need for separate display housings and support structures, reducing overall weight while maximizing display area.
4Area of stationary object
If the display area is as large as the mirror surface, then the field of view is improved, but the structure becomes more complex
Solution Approach 1:
The patent designs the mirror surface to serve multiple functions simultaneously - reflection and display - eliminating the need for separate mirror and display assemblies. This multi-functional design simplifies the overall structure by reducing the number of independent components and assembly steps.
Solution Approach 2:
The patent integrates the display structure directly onto the mirror substrate, combining what would traditionally be separate components into a single unified structure. This merging approach reduces structural complexity by eliminating intermediate mounting structures, brackets, and separate housing requirements.
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 enables a lightweight, user-friendly rearview mirror with full-screen display and touch functionality, effectively addressing the thickness and weight issues of previous designs.
Implementation Method 1
The electrochromic material is filled in the accommodating space
Implementation Method 2
The transflective layer is disposed on the second surface
Data Source
AI summary
A rearview mirror with display function includes a display structure layer, a rearview mirror structure layer, a plastic frame and an electrochromic material. The display structure layer includes a first transparent substrate, a display body layer and a transflective layer on opposite sides of the first transparent substrate. The rearview mirror structure layer is disposed on one side of the display structure layer, and includes a second transparent substrate, a ring-shaped shielding layer, a touch sensing layer, an insulating substrate, and a transparent electrode layer. The ring-shaped shielding layer is disposed around a third surface of the second transparent substrate, and the touch sensing layer covers the third surface and the ring-shaped shielding layer. The ring-shaped shielding layer is electrically insulated from the touch sensing layer. The plastic frame, the transflective layer and the transparent electrode layer define an accommodating space. The electrochromic material is filled in the accommodating space.