Auto-stereoscopic Display Orientation Adaptation
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Solution Overview
Problem
Conventional auto-stereoscopic display systems require multiple points of view to maintain relief images, which limits their flexibility and usability, especially on mobile devices that change orientations, as they are designed for specific screen orientations and do not adapt well to portrait or landscape modes without losing resolution or image quality.
Innovation Solution
A method and system that allows auto-stereoscopic image display on a mobile screen rotating around an axis perpendicular to its plane, adjusting the stereoscopic base and image projection to maintain relief perception across various orientations, using an inclined optical component and calculating a modified stereoscopic base based on the pivot angle to ensure identical relief sensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional auto-stereoscopic display systems use multiple fixed viewpoints on a screen, then relief image quality is maintained, but the system loses flexibility when the device orientation changes between portrait and landscape modes
Solution Approach 1:
The patent implements dynamic adaptation of the auto-stereoscopic display system by detecting the device orientation (portrait or landscape mode) and automatically adjusting the stereoscopic base and viewpoint configuration accordingly. The system transitions from a static fixed-viewpoint approach to a dynamic orientation-adaptive approach, where the display parameters are recalculated based on the current device orientation to maintain optimal image quality and relief perception in any mode.
Solution Approach 2:
The patent changes key display parameters (stereoscopic base, viewpoint spacing, image projection angles) based on the detected device orientation. When the device rotates between portrait and landscape modes, the system modifies these parameters to compensate for the orientation change, ensuring that the relief image quality and multi-viewpoint functionality are preserved regardless of how the device is held.
2Manufacturing precision
If the screen resolution is maintained while adding multiple viewpoints, then image quality is preserved, but the complexity of the display system increases
Solution Approach 1:
The patent makes the display system universal by enabling it to function effectively in both portrait and landscape orientations without requiring separate hardware configurations. The same screen and optical components are used in both modes, but the system adapts its parameters to maintain full functionality. This multi-functional capability allows the device to serve as an auto-stereoscopic display regardless of orientation, reducing the need for mode-specific hardware variations.
3Reliability
If physical modifications are made to the screen to support auto-stereoscopic display, then relief image projection is enabled, but the device loses flexibility for different applications and orientations
Solution Approach 1:
The patent implements dynamic parameter adjustment based on device orientation detection. The system continuously monitors whether the device is in portrait or landscape mode and automatically recalculates the stereoscopic base and viewpoint configuration to maintain optimal relief image projection in the current orientation. This dynamic adaptation eliminates the need for physical screen modifications while preserving reliable auto-stereoscopic functionality across all orientations.
Solution Approach 2:
The system changes display parameters (stereoscopic base, viewpoint spacing, projection angles) based on the detected orientation state. When transitioning between portrait and landscape modes, the parameters are adjusted to maintain proper geometric relationships for relief perception, allowing the same physical screen to reliably project auto-stereoscopic images in any orientation without hardware changes.
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 continuous relief image projection on mobile devices regardless of orientation, maintaining image quality and resolution without the need for physical modifications to the screen, suitable for applications like smartphones and tablets used in both portrait and landscape modes.
Implementation Method 1
This magnifying glass effect results from the fact that a lens placed at the right distance (its focal length) magnifies the sub-pixel that is in alignment with its optical axis and the pupil of the observer's eye.
Implementation Method 2
each having a focal length configured to be able to reflect to infinity the light rays coming from the screen
Implementation Method 3
involving the use of an optical sensor for detecting the eyes of an observer making it possible to detect the inclination of the observer's head in front of the screen
Data Source
Figure 1~2
Figure 3a~3b
Figure 3c~4
AI summary
The invention relates to a system and a method for displaying, on a mobile display screen (10) able to rotate about a real or virtual axis that is perpendicular to the display plane of the screen, an auto-stereoscopic image with N view points made up of N elementary images interleaved according to a pre-defined mixing scheme, said screen comprising a pixel matrix arranged in lines and columns, an optical component (11) being mounted above the screen and having a main axis inclined at an angle αo in relation to the direction of the columns, and configured to allow the projection, when the screen is oriented in an initial viewing direction (20), of predetermined pairs of view points towards the right and left eye, respectively, of a viewer, with the method comprising the following steps: pivoting the screen (10); detecting the pivot angle α of the screen (10); rotating the N elementary images by an angle inverse to the detected pivot angle α; interleaving the pivoted N elementary images according to the mixing scheme of the N elementary images in the initial direction, and displaying said N pivoted elementary images on the display screen.