Transparent LCD Window Shade for Vehicle Sunroof
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Solution Overview
Problem
Existing window shade systems for vehicles require multiple components and space in the passenger compartment, and cannot fully cover sunroofs without large panels, often failing to properly block light.
Innovation Solution
A window display device with a transparent liquid crystal display screen integrated into the vehicle window glass, allowing for adjustable shading without additional panels or rails, using a capacitive sensor and control system to manage light transmittance and shade operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If shade panels and rails are installed in the passenger compartment, then light blocking function is provided, but the number of components increases and passenger compartment space is reduced
Solution Approach 1:
The patent uses a display screen that displays a virtual image of a shade panel instead of installing a physical shade panel. The display screen shows a graphical representation that mimics the appearance and function of a real shade, allowing users to control light blocking through digital means rather than physical components.
Solution Approach 2:
The patent replaces the mechanical system of physical shade panels and rails with an electronic display system. The display screen, controlled by a microcomputer, substitutes for the mechanical shading mechanism, eliminating the need for physical moving parts while achieving the same light blocking function.
2Object-affected harmful factors
If shade panels and rails are installed in the passenger compartment, then light blocking function is provided, but passenger compartment space is reduced
Solution Approach 1:
The patent uses a display screen that displays a virtual image of a shade panel instead of installing a physical shade panel. The display screen shows a graphical representation that mimics the appearance and function of a real shade, allowing users to control light blocking through digital means rather than physical components.
Solution Approach 2:
The patent replaces the mechanical system of physical shade panels and rails with an electronic display system. The display screen, controlled by a microcomputer, substitutes for the mechanical shading mechanism, eliminating the need for physical moving parts while achieving the same light blocking function.
3Volume of moving object
If shade panels smaller than sunroof size are used, then component size is reduced, but the entire sunroof opening cannot be covered
Solution Approach 1:
The patent makes the display screen serve multiple functions: it displays information, shows virtual shade panels, and provides the actual shading function through its display capabilities. The same display screen that shows graphics can also block light when needed, eliminating the need for separate shade panels of various sizes.
Solution Approach 2:
The patent uses a display screen that displays a virtual image of a shade panel instead of installing a physical shade panel. The display screen shows a graphical representation that mimics the appearance and function of a real shade, allowing users to control light blocking through digital means rather than physical components.
4Volume of moving object
If small shade panels are used, then installation space is reduced, but proper light blocking fails to be achieved
Solution Approach 1:
The patent makes the display screen serve multiple functions: it displays information, shows virtual shade panels, and provides the actual shading function through its display capabilities. The same display screen that shows graphics can also block light when needed, eliminating the need for separate shade panels of various sizes.
Solution Approach 2:
The patent uses a display screen that displays a virtual image of a shade panel instead of installing a physical shade panel. The display screen shows a graphical representation that mimics the appearance and function of a real shade, allowing users to control light blocking through digital means rather than physical components.
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
Reduces the number of components and space requirements in the passenger compartment, provides full window shading without gaps, and allows for adjustable transparency and shade operation via simple gestures, enhancing comfort and privacy while maintaining visibility.
Implementation Method 1
transparent liquid crystal display screen integrated into the vehicle window glass
Implementation Method 2
using a capacitive sensor and control system to manage light transmittance and shade operation
Data Source
Figure 1~2
Figure 3A~4
Figure 5A~6
AI summary
A window display device includes a display screen (61) provided in a transparent rear window glass pane (34) of a vehicle (31), an operating means (38) adapted to detect an action for operating the display screen, and a control means (79), which displays a shade on the display screen. The shade is movable to selectively open and close the display screen based on an action performed on the operating means.