Vehicle Display Module With Reflective Cover for Dual Screen Sizes
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Solution Overview
Problem
Existing vehicle display devices often require multiple displays to accommodate different screen sizes, which increases complexity and installation requirements.
Innovation Solution
A single display device with a mechanism that allows a display panel to switch between a small and large screen size by using a cover window with total reflection and transmission areas, and a drive mechanism to adjust the display's orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple display devices are installed to provide different screen sizes, then the versatility and adaptability are improved, but the device complexity and installation requirements increase
Solution Approach 1:
The patent implements a single display device that can function as both a small screen and a large screen through the use of a cover window with differentiated optical properties. The display module universally serves multiple purposes by switching between displaying images directly (small screen mode) and displaying images through the cover window (large screen mode), eliminating the need for separate display devices for different screen sizes.
Solution Approach 2:
The patent employs a drive mechanism that can dynamically change the orientation and position of the cover window relative to the display panel. By rotating or tilting the cover window to different angles, the system dynamically switches between small screen and large screen modes, allowing the display device to adapt its functionality based on operational requirements.
2Adaptability or versatility
If the cover window has both total reflection and transmission areas, then the versatility of display modes is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The cover window is designed with spatially varying optical properties, where different regions (total reflection area and transmission area) have distinct functions. The total reflection area reflects light to create the large screen effect, while the transmission area allows light to pass through for the small screen mode. This local differentiation of optical properties enables versatile display modes while using a single integrated component, balancing functional requirements with manufacturing feasibility.
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
Enhances convenience by providing two screens of different sizes with one device, optimizing space utilization and reducing the number of installed displays.
Implementation Method 1
The cover window may include a total reflection area on which an image emitted from the display panel is totally reflected, and a transmission area on which the image emitted from the display panel is transmitted.
Data Source
AI summary
A display device for a vehicle comprises a display module having a display panel and a cover window disposed on one side of the display panel, and a drive mechanism for laying down the display module or standing the display module up, wherein the cover window may comprise: a total reflection area in which an image emitted from the display panel is totally reflected; and a transmission area in which the image emitted from the display panel is transmitted.