Dual View Transparent Display Using Time-Multiplexed Shutter Control
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Solution Overview
Problem
Transparent displays that emit light from both sides often present images on opposite sides as mirror or reversed images, making it difficult to view text or asymmetrical objects effectively.
Innovation Solution
A dual view display system using a single transparent display with time-multiplexing and shutter devices on each side to allow or block viewing, ensuring images are properly oriented on both sides by controlling the shutter devices to alternate image visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transparent display emits light from both sides to enable viewing from either side, then the display is viewable from both sides, but the images on opposite sides become mirror or reverse images making text and asymmetrical objects difficult to view
Solution Approach 1:
The system dynamically switches between displaying a first image on the first side and a second image on the second side at different times. The display transitions from showing one image to showing the other image, with each image being properly oriented for its respective viewing side, thereby resolving the mirror image problem while maintaining dual-side viewability
Solution Approach 2:
The display alternates periodically between showing the first image on the first side and the second image on the second side. This periodic switching allows each side to receive properly oriented images at appropriate intervals, eliminating the continuous mirror image issue while preserving the capability for both sides to view content
2Device complexity
If a single transparent display is used to display images on both sides, then the device complexity is reduced, but the images cannot be properly oriented for both sides simultaneously
Solution Approach 1:
The single transparent display dynamically changes which image it displays on which side over time. By switching the display content between sides, the system maintains device simplicity while achieving proper image orientation for both viewing sides through temporal separation rather than spatial duplication
Solution Approach 2:
The display employs periodic switching between displaying the first image on the first side and the second image on the second side. This time-based alternation allows a single display to serve both sides with properly oriented images, avoiding the need for multiple displays while resolving the orientation problem
3Ease of operation
If shutter devices are used to control viewing on each side, then properly oriented images can be displayed on both sides at different times, but the device complexity increases
Solution Approach 1:
Shutter devices are introduced as intermediary components that control light transmission to each side independently. These shutters act as mediators between the display and the viewers, enabling the display to show properly oriented images on each side at appropriate times by blocking or allowing light passage, thus resolving the orientation issue while maintaining a unified display system
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
Enables simultaneous, properly oriented image display on opposite sides of a transparent display, reducing the need for swiveling or leaning and enhancing interaction in various scenarios like retail or gaming environments.
Implementation Method 1
a transparent organic light emitting diode (OLED) type display naturally emits light from both sides of the display
Implementation Method 2
shutter devices on each side of the transparent display are used to allow or block viewing of the display
Data Source
AI summary
A dual view display system to display two different images in substantially opposite direction using a single transparent display to time-multiplex the images and shutter devices to alternately block each side from being viewed according to the image being displayed.