Transparent Screen Tile Dimming for Image and Background Visibility
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Solution Overview
Problem
Existing display systems on transparent surfaces, such as vehicle windshields, face challenges in enhancing the visibility of images while maintaining the visibility of the background environment, as uniform brightness control can compromise either the image or the background visibility.
Innovation Solution
A display dimming control apparatus that independently controls the dimming level of each tile on a transparent screen using dimming elements, based on background information, viewer position, and visibility considerations, ensuring optimal brightness levels for both the image and background.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a smoke film or dimming film is attached to the entire surface of the screen to reduce incident light, then the visibility of the image is improved, but the visibility of the background environment is lowered
Solution Approach 1:
The screen is divided into multiple tiles, with each tile controlled by an independent dimming element. This segmentation allows different regions of the screen to have different dimming levels, enabling the image display area to be dimmed while keeping the background view area bright.
Solution Approach 2:
Different dimming levels are applied to different regions of the screen based on local requirements. The image display position receives higher dimming to improve visibility, while the background environment position maintains lower dimming to preserve visibility.
2Measurement precision
If the brightness of the screen is uniformly reduced to increase image visibility, then the image becomes more visible, but the background field-of-view is compromised
Solution Approach 1:
The dimming level of each tile is dynamically adjusted based on real-time detection of the display device position and background information. This dynamic control allows the system to adapt to changing conditions and optimize both image visibility and background view simultaneously.
Solution Approach 2:
The system detects the display device position and background information, then uses this feedback to automatically adjust the dimming level of each tile. This closed-loop control ensures optimal performance without manual intervention.
3Measurement precision
If independent dimming control is implemented for each tile, then both image visibility and background visibility can be optimized, but the device complexity increases
Solution Approach 1:
The dimming apparatus uses a universal control approach where the same control unit manages all dimming elements across all tiles. This multi-functional control system reduces overall complexity despite the increased number of controlled elements.
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 system enhances image visibility while preserving background visibility by dynamically adjusting brightness levels according to environmental conditions and viewer position, providing clear images and maintaining a favorable background view.
Implementation Method 1
a dimming apparatus having a plurality of dimming elements, the plurality of dimming elements independently controlling a dimming level of the screen for each of a plurality of tiles
Data Source
AI summary
A display dimming control apparatus includes: a display image generation unit that determines a display device position that is a position of a display device that emits image light in order to display an image on a transparent screen from a display apparatus having the display device; and a dimming processing control unit that controls a dimming apparatus having a plurality of dimming elements. The plurality of dimming elements independently control a dimming level of the screen for each of a plurality of tiles obtained by virtually dividing the screen The dimming processing control unit includes a dimming position determination unit that determines one or more dimming elements that control dimming levels of one or more tiles corresponding to a screen display position.