Rotatable Vehicular Display Reducing Sunlight Reflection
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Solution Overview
Problem
Vehicular touch screens face issues with strong sunlight causing reflections, which affect visibility and usability.
Innovation Solution
A vehicular screen central control system that includes a display device with two interconnected display areas that can rotate to fold and adjust based on light intensity, using a photosensitive sensor and processor to control the angle and brightness for optimal viewing, and a mode switching module for manual or automatic adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the touch screen is embedded in the dashboard, then the screen is integrated into the vehicle interior, but strong sunlight causes reflection on the screen reducing visibility
Solution Approach 1:
The patent applies the dynamics principle by making the display screen rotatable relative to the dashboard. The screen can dynamically adjust its angle based on lighting conditions, transitioning from a fixed embedded position to a rotated position that reduces sunlight reflection. This dynamic adjustment resolves the contradiction by maintaining screen integration while eliminating the reflection problem through angular repositioning.
Solution Approach 2:
The patent applies the dimensionality change principle by introducing rotational movement in the angular dimension. Instead of only positioning the screen in the planar dimension (embedded in dashboard), the screen can now rotate around an axis, adding a rotational degree of freedom. This allows the screen to adjust its orientation relative to sunlight direction, reducing reflection while maintaining integration.
2Object-affected harmful factors
If the display screen is rotated to reduce reflection, then visibility is improved, but the structural complexity increases
Solution Approach 1:
The patent applies the multi-functionality principle by integrating multiple functions into the rotation mechanism. The same rotational structure serves both to adjust the screen angle for reflection reduction and to position the screen for optimal viewing. The control system integrates light sensing, angle calculation, and motor control into a unified system that performs multiple tasks (detecting light conditions, determining rotation angle, executing rotation) through a single integrated mechanism, thereby reducing overall system complexity despite the added rotational capability.
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 reflections and improves visibility by dynamically adjusting the display configuration based on light conditions, enhancing the usability of the touch screen in various lighting environments.
Implementation Method 1
an information acquisition module 40 senses a light intensity signal received by the display device 10
Data Source
AI summary
A vehicular screen central control system includes a processor, an information acquisition module communicatively coupled to the processor, a rotator communicatively coupled to the processor, and a display device coupled to the rotator. The display device includes a first display area and a second display area. The information acquisition module is configured to acquire a light intensity signal received by the display device. The processor is configured to control the display device to display and analyze the light intensity signal to transmit an instruction to the rotator. The rotator adjusts an angle between the first display area and the second display area according to the instruction.