Liquid Crystal Twisting Layer for Transparent Display Contrast
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Solution Overview
Problem
Transparent displays suffer from low contrast due to light transmission, which interferes with background scenery, leading to poor image sharpness and eye fatigue.
Innovation Solution
A liquid crystal twisting layer is integrated behind the transparent display, allowing it to switch between transparent and non-transparent states by rearranging liquid crystal molecules, enabling background visibility in the transparent state and improved contrast in the non-transparent state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the transparent display allows light transmission to maintain transparency, then the viewer can see background scenery, but the contrast and image quality deteriorate due to interference from background patterns and colors
Solution Approach 1:
The patent applies a liquid crystal twisting layer that can dynamically change its optical properties between transparent and non-transparent states. By controlling the orientation of liquid crystal molecules through applied voltage, the display transitions from a static transparent state to a dynamic state where it can block background interference, thereby resolving the contradiction between transparency and image sharpness.
Solution Approach 2:
The liquid crystal twisting layer changes its optical parameters (transparency/opacity) by altering the molecular orientation of liquid crystal molecules. When voltage is applied, the molecules reorient from a twisted state (transparent) to an aligned state (non-transparent), changing the display's optical properties to eliminate background interference and improve image contrast.
2Manufacturing precision
If the transparent display blocks background scenery to improve contrast, then image quality improves, but the transparency and ability to see background scenery is lost
Solution Approach 1:
The liquid crystal twisting layer provides dynamic control over the display's transparency. Users can switch between transparent and non-transparent states as needed, allowing the system to adapt to different viewing conditions and requirements, thus maintaining both transparency capability and image sharpness improvement options.
Solution Approach 2:
The transparent display with liquid crystal twisting layer serves multiple functions: it can operate as a fully transparent window, a high-contrast display, or anywhere in between. This multi-functionality allows the same device to satisfy both transparency requirements and image quality requirements depending on the operational mode.
3Manufacturing precision
If the transparent display uses a liquid crystal twisting layer to switch between transparent and non-transparent states, then contrast and image quality improve in non-transparent state, but the device complexity increases
Solution Approach 1:
The liquid crystal twisting layer is integrated directly behind the transparent display panel, nesting the additional functional layer within the existing display structure. This nesting approach minimizes the increase in device complexity by incorporating the contrast-enhancing mechanism into the display's existing architecture rather than adding separate external 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
The solution provides a transparent displaying apparatus with enhanced contrast and image quality by allowing or blocking background scenery based on the liquid crystal layer's state, improving user experience.
Implementation Method 1
the liquid crystal twisting layer comprising therein liquid crystal molecules that selectively exhibit a state of arrangement of being substantially perpendicular to the transparent display and a state of arrangement of being substantially parallel to the transparent display
Implementation Method 2
when the liquid crystal molecules of the liquid crystal twisting layer are arranged perpendicular to the transparent display, the liquid crystal twisting layer is in a transparent state... and when the liquid crystal molecules of the liquid crystal twisting layer are arranged parallel to the transparent display, the liquid crystal twisting layer is in a non-transparent state
Data Source
AI summary
The present invention provides a transparent displaying apparatus, which includes a transparent display (30/40) and a liquid crystal twisting layer (20) arranged on a back surface of the transparent display (30/40). The liquid crystal twisting layer (20) includes therein liquid crystal molecules that selectively exhibit two states of arrangement including a first one of being substantially perpendicular to the transparent display (30/40) and a second one of being substantially parallel to the transparent display (30/40). When the liquid crystal molecules of the liquid crystal twisting layer (20) are arranged perpendicular to the transparent display (30/40), the liquid crystal twisting layer (20) is in a transparent state, such that a viewer may see, on a display screen of the transparent display (30/40), background scenery on the backside of the transparent displaying apparatus; and when the liquid crystal molecules of the liquid crystal twisting layer (20) are arranged parallel to the transparent display (30/40), the liquid crystal twisting layer (20) is in a non-transparent state, such that a viewer does not see, on the display screen of the transparent display (30/40), the background scenery on the backside of the transparent displaying apparatus and, compared to the transparent state of the liquid crystal twisting layer (20), the display screen of the transparent display (30/40) in this state shows relatively high displaying contrast, providing a better effect of displaying.