Transparent Display Light Blocking Member Distance Control
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Solution Overview
Problem
Transparent display devices face challenges in providing clear information visibility due to their transparent nature, which can obscure content from view.
Innovation Solution
A display device comprising a display panel, a light blocking member with adjustable transmittance, and a distance sensing member that calculates a proper viewing distance range and adjusts the light transmittance of the light blocking member based on the viewer's distance to optimize visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device uses a transparent display panel, then the background behind the display device can be viewed through the screen, but the viewer cannot clearly view the information on the screen due to the transparent property
Solution Approach 1:
The light blocking member's transmittance is dynamically adjusted based on the viewer's distance from the display device. When the viewer is within the proper viewing distance range, the light blocking member blocks background light to enhance information visibility. When the viewer is outside this range, the light blocking member allows background viewing. This dynamic adjustment resolves the contradiction between transparent property and information visibility.
Solution Approach 2:
The transmittance parameter of the light blocking member is changed according to the viewing distance. By controlling the transmittance parameter to be high when the viewer is outside the proper viewing distance range and low when inside, the system maintains both transparent property and information visibility under different conditions.
2Measurement precision
If the light blocking member blocks background light to improve information visibility, then the viewer can see screen content clearly, but the viewer cannot view background objects
Solution Approach 1:
The system dynamically switches between two states: when the viewer is within the proper viewing distance range, the light blocking member blocks background light for clear information viewing; when the viewer is outside this range, the light blocking member becomes transparent to allow background viewing. This dynamic state switching resolves the contradiction between information visibility and background viewing capability.
Solution Approach 2:
The distance sensing member provides feedback about the viewer's position, which the controlling member uses to adjust the light blocking member's transmittance. This feedback mechanism ensures that the display device automatically adapts to the viewer's position, maintaining either information visibility or background viewing capability based on the actual viewing conditions.
3Measurement precision
If the light transmittance of the light blocking member is adjusted dynamically, then visibility is optimized for different viewing distances, but the device complexity increases
Solution Approach 1:
The light blocking member acts as an intermediary element between the display panel and the viewer. By placing this controllable component in the light path, the system can selectively block or transmit background light without fundamentally redesigning the display panel structure. This intermediary approach optimizes visibility while minimizing overall device complexity.
Solution Approach 2:
The light blocking member serves multiple functions: it blocks background light when the viewer is close to improve information visibility, and it allows background light transmission when the viewer is far away to maintain the transparent display effect. This multi-functionality reduces the need for separate components for different viewing conditions, thereby limiting the increase in device complexity.
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
Improves visibility and effective information display by adjusting light transmittance according to the viewer's position, ensuring clear viewing of both screen content and background objects.
Implementation Method 1
an optical modulation layer interposed between the first transparent electrode and the second transparent electrode
Implementation Method 2
the light blocking member may have an adjustable light transmittance
Data Source
AI summary
A display device is disclosed. The display device may include a display panel, a light blocking member, a distance sensing member, and a controlling member. The display panel may include a pixel region and a transmission region. The light blocking member may be disposed on a rear surface of the display panel and have an adjustable light transmittance. The distance sensing member may sense a viewing distance between a viewer and the display device. The controlling member may calculate a proper viewing distance range, may compare the viewing distance with the proper viewing distance range to generate a comparison result, and may adjust the light transmittance of the light blocking member based on the comparison result.