Parallax Barrier Display Subpixel Arrangement for Monotone Image Clarity
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Solution Overview
Problem
Display devices that use parallax images to create stereoscopic vision suffer from reduced resolution and visibility issues when displaying monotone images, such as geometric figures or characters, due to the allocation of pixels and optical elements, leading to information loss and deformation.
Innovation Solution
A display device with an image display section composed of unit pixels arranged as sub-pixels corresponding to multiple colors, and an optical element that allocates light to viewpoints in a manner where the same color is not arranged linearly in a predetermined number of sub-pixels in any direction, preventing information loss and improving visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a stepwise barrier is used to allocate light to multiple viewpoints, then stereoscopic vision is achieved, but visibility of monotone images such as geometric figures or characters deteriorates due to information loss in same column, row, or oblique direction
Solution Approach 1:
The patent applies asymmetry by arranging sub-pixels of the same color in non-linear, asymmetric patterns rather than uniform linear arrangements. Specifically, the red sub-pixels, green sub-pixels, and blue sub-pixels are positioned at different offset locations within their respective groups, creating an asymmetric color distribution that prevents monotone image degradation while maintaining stereoscopic vision capability
Solution Approach 2:
The patent transitions from linear one-dimensional color arrangements to two-dimensional non-linear arrangements of sub-pixels. By distributing sub-pixels of the same color across different rows and columns in a non-linear pattern, the invention adds spatial dimensionality to the color arrangement, thereby preventing information loss in any single direction while preserving the barrier system's stereoscopic function
2Adaptability or versatility
If pixels are allocated according to viewpoint positions in stereoscopic display, then multiple viewpoints are achieved, but resolution is degraded because the number of pixels for each viewpoint is reduced
Solution Approach 1:
The patent segments the display into multiple viewpoint regions by using the barrier structure to direct light from different pixel columns to different viewpoints. Each viewpoint receives light from a specific set of pixels, allowing simultaneous display of multiple images with different perspectives while maintaining adequate resolution through proper pixel allocation
Solution Approach 2:
The patent applies local quality by optimizing the barrier structure and pixel arrangement specifically for multi-viewpoint display. The barrier is positioned and configured to direct light from specific local regions of the display to specific viewpoints, allowing each viewpoint to receive sufficient light intensity and resolution while maintaining the overall multi-viewpoint capability
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
The solution enhances visibility when displaying monotone images by preventing information loss and deformation, particularly for geometric figures or characters, by ensuring that the same color is not arranged linearly in a predetermined number of sub-pixels in any direction, thereby improving image clarity and integrity.
Implementation Method 1
an optical element having a window section allocating light emitted from the image display section in units of the sub-pixels to a plurality of viewpoints
Data Source
AI summary
A display device including: an image display section in which unit pixels each composed of a plurality of sub-pixels corresponding to a plurality of colors are arranged; and an optical element having a window section allocating light emitted from the image display section in units of the sub-pixels to a plurality of viewpoints, wherein a color arrangement of the sub-pixels of the image display section or an arrangement of the window section of the optical element is set such that, when the image display section is viewed from each of the plurality of viewpoints, in an arrangement of colors of light allocated by the window section of the optical element, a same color is not arranged linearly in a predetermined number of sub-pixels or more in succession in any of a row direction, a column direction, and an oblique direction.