Autoparallactic Display with Dynamic View Generation
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Solution Overview
Problem
Autostereoscopic displays suffer from limited movement range, discontinuous movement, moiré effects, fixed viewing distance, and poor stereoscopic channel separation, leading to low image quality and limited viewer engagement.
Innovation Solution
A method for autoparallactic and autostereoscopic display using a grid of display elements with optical structures that allow for viewer-induced movement of display content, enabling continuous and jump-point-free movement, and adjustable viewing distances without changing the optical element, using a lens barrier optic or chromatic light deflector screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a small number of perspective views are used in autostereoscopic displays, then the cost of capturing and generating the combined image is kept within reasonable limits, but the movement range of the spatial visual impression is extremely limited
Solution Approach 1:
The patent implements dynamic control of display content movement that responds to viewer position changes. The control unit detects viewer movement and adjusts the displayed content's movement characteristics in real-time, enabling continuous adaptation without requiring multiple pre-captured perspective views. This dynamic approach resolves the contradiction by providing extensive movement range through computational control rather than through multiple static views.
Solution Approach 2:
The patent changes the parameter of view generation from static pre-captured images to dynamically generated views based on viewer position. By using a control unit that calculates and renders appropriate display content based on detected viewer movement, the system achieves extensive movement range while maintaining cost efficiency, as it generates views on-demand rather than requiring extensive pre-capture of multiple perspectives.
2Adaptability or versatility
If the number of perspective views is increased to improve movement range, then the movement of spatial visual impression improves, but the resolution and brightness of the perceived 3D impression are excessively reduced through optical filtering
Solution Approach 1:
The patent replaces the mechanical/optical barrier system with a control unit-based computational approach. Instead of using physical barriers that filter and reduce brightness when multiple views are combined, the system uses a control unit to detect viewer position and dynamically adjust display content. This substitution eliminates the brightness loss associated with optical filtering while maintaining extensive movement range through software-based view generation.
3Manufacturing precision
If a fixed optimal viewing distance is maintained, then the spatial visual impression quality is optimized, but the display requires changing the barrier or optical structure when viewing distance changes
Solution Approach 1:
The patent implements a dynamic control unit that continuously detects viewer position and adjusts display content characteristics in real-time. This dynamic adaptation allows the display to maintain optimal visual impression quality across varying viewing distances without requiring physical changes to the barrier or optical structure. The control unit compensates for distance changes through computational adjustments to the displayed content.
Solution Approach 2:
The control unit serves multiple functions: it detects viewer position, calculates appropriate display adjustments, and renders the corrected view. This multi-functional approach replaces the need for multiple specialized optical structures or barriers for different viewing distances. A single control unit handles all viewing distance scenarios, eliminating the complexity of having to change physical components.
4Reliability
If optical overlays are used to prevent unauthorized viewing, then security is improved, but the solution is simple only for mobile users and less suitable for larger stationary displays and larger groups of people
Solution Approach 1:
The patent implements dynamic view control that adapts to viewer position and identity. The control unit detects which viewer is present and provides them with the appropriate authorized view. This dynamic approach enables secure viewing for stationary displays and large groups, as the system can identify and authenticate multiple different viewers and provide each with their own authorized perspective, unlike static optical overlays that work only for mobile individual users.
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 viewer engagement by allowing continuous movement and adjustable viewing distances, improving image quality and accessibility for a wider range of viewers, while maintaining high stereo channel separation.
Implementation Method 1
an optical element with periodically arranged optical structures is placed upstream or downstream of the grid of rows and columns with display elements A(k, 1) at a distance D, by which Transmitted or emitted light propagation directions are specified
Implementation Method 2
lens barrier optic or chromatic light deflector screen
Data Source
Figure 1
Figure 1a
Figure 2
AI summary
The invention relates to visual displays having moving display content. Display content moved without auxiliary means via the individual movement of the observer are known in auto-stereoscopic 3D displays, but are limited due to a low number of perspective views, are discontinuous, and can only be optimally perceived from a distance. The auto-parallactic, auto-stereoscopic changing display according to the invention, having up to several hundred views, enables wide and continuous display movement, position-selective visibility, complete stereo channel separation, and large outscreenings and switching to conventional auto-stereoscopic 3D display without a hardware change, in that the number of views is decoupled from the resolution of the display device. The number of views AZ is the product of an object number OZ and a dynamic number DZ which is effective via the scanning movement of the observer. Figure 1 shows the principle of the view generation over time. OZ = 24, DZ = 8, and AZ = 192 are therein. The system number SZ defines the object number SZ*pixels on the display device. The computing capacity is independent of the 2K/4K/8K/16K market trend in display technology. A plurality of application options are explained in the embodiments.