Adaptive 3D Display System for User Position
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Solution Overview
Problem
Auto-stereoscopic 3D displays are sensitive to viewer position, leading to discomfort and reduced effectiveness in dynamic scenarios where users may not be optimally aligned, causing distorted or inverted 3D perceptions.
Innovation Solution
A three-dimensional display system that adjusts its 3D mode operation based on user presence estimates, switching between 2D and 3D modes and modifying disparity and depth range characteristics to optimize the 3D effect for the viewer's position, using lenticular or barrier display systems with lenses and shutters to direct views effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If auto-stereoscopic displays use fixed viewing cones with specific viewing angles, then three dimensional perception is achieved for users in specific locations, but user discomfort occurs when users are not optimally aligned or move through the display area
Solution Approach 1:
The patent applies dynamics by making the display system adaptive rather than static. The display dynamically adjusts its operation mode (2D or 3D) based on real-time detection of user presence and position. Sensors detect user location and the system responds by switching between different display modes, ensuring optimal viewing experience whether the user is stationary or moving through the display area.
Solution Approach 2:
The patent implements feedback through a closed-loop system where sensors continuously monitor user presence and position, and this information feeds back to the display control system. The system uses this feedback to automatically adjust between 2D and 3D modes, eliminating the need for manual intervention and ensuring the display adapts to user movements in real-time.
2Reliability
If auto-stereoscopic displays provide fixed 3D views, then optimal 3D effect is achieved for dedicated users, but discomfort and confusion occur for users in dynamic positions or peripheral viewing
Solution Approach 1:
The patent applies universality by enabling the display system to perform multiple functions - both 2D and 3D display modes - within a single system. The display can switch between these modes depending on user presence and position, making it universally suitable for both dedicated users seeking optimal 3D effect and casual viewers who may be moving or viewing from peripheral positions.
Solution Approach 2:
The patent implements parameter changes by dynamically altering the display mode parameter based on detected user conditions. When a user is detected in an optimal position, the system switches to 3D mode with appropriate disparity and depth parameters. When users are in peripheral or moving positions, the system adjusts parameters to provide a more comfortable viewing experience, potentially switching to 2D mode or modifying the 3D parameters.
3Reliability
If the display operates continuously in 3D mode, then high 3D performance is maintained, but user discomfort increases for those not properly positioned
Solution Approach 1:
The patent applies dynamics by making the display mode flexible rather than fixed. The system continuously monitors user presence and position, dynamically switching between 2D and 3D modes to optimize the viewing experience. This dynamic adjustment ensures high 3D performance when appropriate while minimizing discomfort when users are not properly positioned.
Solution Approach 2:
The patent implements feedback through continuous sensing of user presence and position, with this information feeding back to control the display mode. This closed-loop feedback mechanism allows the system to maintain high 3D performance for properly positioned users while automatically reducing or eliminating 3D effects for users in positions that would cause discomfort.
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
Enhances user experience by reducing discomfort and maintaining high 3D performance, allowing flexible operation and adapting to user presence and movement, ensuring optimal 3D perception without requiring precise viewer alignment.
Implementation Method 1
auto-stereoscopic displays that use means at the display (such as lenticular lenses, or barriers) to separate views, and send them in different directions where they individually may reach the user's eyes
Implementation Method 2
an efficient 3D experience may be provided for dedicated users while at the same time reducing the discomfort and inconvenience that may be experienced in some circumstances and scenarios
Data Source
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AI summary
A three dimensional display system comprises a display (207) presenting a plurality of views of a scene where each view corresponds to a viewing direction for the scene. A rendering unit (203) generates an image for each of the views. The rendering unit (203) is capable of generating differentiated images for neighbouring views containing differentiated image data providing a three dimensional depth effect when neighbouring views are viewed by different eyes of a viewer. A user processor (209) generates a user presence estimate in response to an attempted detection of a user in a viewing area for the display system. A 3D mode controller (213) modifies the three dimensional effect in response to the user presence estimate. For example, the display system may provide a two dimensional image when no user is present and a three dimensional image when a user is present. This may reduce discomfort experienced by viewers in suboptimal positions.