Dual-Sided Display Module with Projection for In-Vehicle Information
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Solution Overview
Problem
General in-vehicle displays are limited to single-sided displays, which restrict the amount of image data and text information that can be displayed simultaneously, failing to effectively present information from multiple application scenarios.
Innovation Solution
A display module and system that utilizes a back frame with two backlight modules and liquid crystal panels on either side, allowing for double-sided display functionality while saving space and thinning the module, with a projection component to project the display image onto a suitable surface, such as a windshield, enabling the presentation of diverse information types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a single-sided display is used, then the device complexity is reduced, but the quantity of display information is limited
Solution Approach 1:
The patent transitions from a single-sided display to a double-sided display by utilizing both front and back surfaces of the liquid crystal panel, effectively adding a spatial dimension to the display capability. This allows information to be presented on two separate surfaces simultaneously, doubling the display information capacity without proportionally increasing device complexity.
Solution Approach 2:
The display system is segmented into two independent display surfaces (front and back), each with its own backlight module and control system. This segmentation allows each side to display different information independently, thereby increasing the total quantity of display information while maintaining manageable structural complexity through modular design.
2Loss of information
If a double-sided display with two backlight modules is implemented, then the display information quantity increases, but the volume of the display module increases
Solution Approach 1:
The patent employs a nested structure where the second backlight module is positioned within the space created by the first backlight module and the liquid crystal panel. The back frame structure is designed to accommodate both backlight modules in a layered arrangement, allowing the second backlight to be disposed in a groove formed by the backplane and second side wall, thus reducing the overall volume increase.
Solution Approach 2:
Instead of placing both backlight modules side-by-side in the same plane (which would increase volume), the patent utilizes the thickness dimension of the display module to stack the backlight modules at different depths. This vertical stacking in the thickness direction allows efficient space utilization, accommodating dual backlight modules without proportionally increasing the front-facing area or overall volume.
3Loss of information
If display interfaces are made larger to show more information, then the display information quantity increases, but the area of the display device increases
Solution Approach 1:
The patent resolves the area constraint by utilizing the third dimension (thickness) to add display capacity. Instead of expanding the front display area, it creates a second display surface on the back side of the panel, allowing more information to be displayed without increasing the footprint area of the display device.
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 the display of multiple information types simultaneously in a limited space, enhancing user experience by providing dual-sided display functionality and improving image uniformity through the use of a concave reflective surface for projecting images onto a windshield or other surfaces.
Implementation Method 1
a first backlight module disposed in the first groove; a second backlight module disposed in the second groove
Implementation Method 2
with a projection component to project the display image onto a suitable surface, such as a windshield
Data Source
AI summary
A display system includes a display module, a projection component, and a projection bearing component. The projection component is disposed with respect to a display side defined by a second liquid crystal panel. The projection bearing component is disposed with respect to a side of the projection component away from the display module. The projection component is configured to project a display image of the second liquid crystal panel onto the projection bearing component.