Autostereoscopic Display Vertical Screen Subpixel Arrangement
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Solution Overview
Problem
Autostereoscopic displays on vertically oriented screens face challenges due to non-symmetrical screen structures, leading to pixel enlargement and visible subpixels, resulting in poor visual quality and unpleasant outlines, as existing optical components struggle to maintain separating power and avoid artifacts when rotated.
Innovation Solution
The method involves switching off or darkening certain subpixels on a vertical screen to adjust the arrangement of subpixels corresponding to different points of view, using an oblique optical component to link subpixels across columns, and introducing a vertical offset pattern to minimize pitch and artifacts, allowing for better visual quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the screen is rotated by 90° to vertical format, then the display can better highlight vertical subjects and save space, but the pixel structure becomes non-symmetrical causing visible subpixels and poor visual quality
Solution Approach 1:
The patent accepts and exploits the asymmetric pixel structure resulting from screen rotation. Instead of trying to restore symmetry, the invention adapts the autostereoscopic system to work with the asymmetric subpixel arrangement, where subpixels are stacked vertically rather than arranged horizontally, thereby resolving the visual quality issue caused by the non-symmetrical structure
Solution Approach 2:
The patent changes the parameters of the optical component to match the rotated screen configuration. The cylindrical lenses are oriented with their axes parallel to the screen edges rather than inclined at 18° as in conventional horizontal screens, and the pitch of the lens array is adjusted to correspond to the vertical subpixel spacing, thereby maintaining visual quality in the vertical format
2Device complexity
If conventional optical components are used on vertical screens, then the system structure remains simple, but artifacts and moiré effects appear due to pixel enlargement
Solution Approach 1:
The patent modifies the parameters of the optical component to match the vertical screen configuration. The cylindrical lens axes are oriented parallel to the screen edges instead of at 18° inclination, and the lens pitch is adjusted to correspond to the vertical subpixel spacing. This parameter adaptation eliminates artifacts and moiré effects while maintaining system simplicity
Solution Approach 2:
Instead of rotating the conventional optical component setup and accepting the resulting visual degradation, the patent inverts the approach by designing the optical component parameters from scratch to match the vertical screen configuration, thereby achieving high visual quality without complex modifications
3Area of stationary object
If the pitch of the optical component is increased to match enlarged pixels, then the component can cover the vertical screen, but the separating power is lost and visual quality deteriorates
Solution Approach 1:
The patent optimizes the pitch parameter of the lens array to match the vertical subpixel spacing on the rotated screen. By setting the pitch equal to the distance between vertically adjacent subpixels of the same color, the optical component achieves both adequate coverage of the vertical screen and maintains high separating power, preventing the deterioration of visual quality
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
This approach enhances the visual quality of autostereoscopic displays on vertical screens by reducing artifacts and moiré effects, enabling effective autostereoscopic rendering with improved separating power and reduced luminosity loss, while maintaining acceptable brightness.
Implementation Method 1
A selector device, typically consisting of an array of cylindrical lenses or a parallax barrier in front of the display screen
Data Source
AI summary
A method for autostereoscopic display of an autostereoscopic image with N points of view of rank between 1 and N—in an ascending order from right to left—on a screen having pixels arranged in rows and in columns, said pixels consisting of a plurality of subpixels of different colors (R, G, B), wherein said screen is arranged with its largest dimension in the vertical direction so that the subpixels forming each pixel are arranged in said vertical direction, and each column of the screen is filled with blocks of at least three subpixels corresponding to a set of subpixels of one of the points of view of the image to be displayed, separated by blocks of one or more subpixels that are off or darkened.