Vehicular Display Bezel with Reflecting Plate
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Solution Overview
Problem
Vehicular display devices that project images onto a front glass face issues with external light reflections causing discomfort to passengers and reducing visibility, and existing solutions either compromise visibility or increase costs due to complex configurations and additional parts.
Innovation Solution
A vehicular display device with a bezel that includes a cover portion and a frame portion, where the cover portion's front-side end is positioned lower than the rear-side end, featuring a reflecting plate with high reflectivity and an output plate that collects and transmits external light, reducing reflections and enhancing visibility while integrating the frame with the instrument panel for cost reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the cover portion is arranged to be front tilted downward to prevent reflected light from reaching the passenger, then passenger comfort is improved, but the inner surface of the frame portion is reflected darkly and visibility is lowered
Solution Approach 1:
The frame portion is divided into a front frame and a rear frame, with the front frame specifically designed to include light-reflecting structures. This segmentation allows the front frame to compensate for the darkness caused by the tilted cover portion while the rear frame maintains its protective function.
Solution Approach 2:
A light-reflecting structure (reflective sheet or reflective paint) is introduced as an intermediary element on the inner surface of the front frame. This mediator reflects external light onto the front glass, compensating for the reduced illumination caused by the tilted cover portion and improving overall visibility.
2Object-affected harmful factors
If a complex configuration with separate instrument panel and frame portion is used to prevent reflected light, then passenger comfort is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The frame portion is integrated with the instrument panel as a single molded piece rather than separate components. This merging reduces the number of parts and assembly processes while maintaining the light-reflecting function through the incorporated reflective structures.
Solution Approach 2:
The front frame serves multiple functions: it provides structural support, protects the display device, and incorporates light-reflecting structures to improve visibility. This multi-functionality reduces the need for separate components and simplifies the overall design.
3Object-affected harmful factors
If the cover portion is front tilted downward, then external light reflection toward passenger is prevented, but the reflection on front glass becomes focused at near point causing parallax and reduced visibility
Solution Approach 1:
The light-reflecting structure is arranged at a different spatial position and angle relative to the front glass, creating a separate light path dimension. This allows the reflected light to reach the front glass at an appropriate angle, preventing parallax issues while maintaining the tilted cover portion's protective function.
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
Prevents external light reflections from causing passenger discomfort and maintains good visibility while reducing manufacturing costs by simplifying the design and integrating the frame with the instrument panel.
Implementation Method 1
a front frame arranged on a front side of the cover portion includes a reflecting plate formed to have a high reflectivity on an upper surface
Implementation Method 2
the output plate is formed with a semi-transparent member that transmits light reflected by the reflecting plate therethrough and reflects external light
Implementation Method 3
the output plate is formed with a semi-transparent member that transmits light reflected by the reflecting plate therethrough and reflects external light
Implementation Method 4
a light-collecting portion collecting external light such that the external light enters from a front into between the reflecting plate and the output plate
Data Source
AI summary
Provided is a vehicular display device that offers good visibility without causing a passenger to feel uncomfortable. In a bezel that includes a cover portion arranged above a display unit of a vehicular display device and a frame portion enclosing the cover portion, a front-side end portion of the cover portion is arranged at a position lower than a rear-side end portion. As a result, external light is reflected forward. Moreover, a front frame includes a reflecting plate, a semi-transparent output plate covering over the reflecting plate, and a light-collecting portion collecting external light that enters from a front into a space enclosed by the reflecting plate and the output plate. As a result, the front frame is prevented from being darkly reflected onto a front glass.