Naked-Eye 3D Display Light Splitting Structure and Sub-Pixel Arrangement
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Solution Overview
Problem
Current naked-eye 3D display devices face challenges in achieving high viewpoint density and smooth parallax transition due to limitations in manufacturing processes and alignment difficulties between sub-pixels and light splitting structures.
Innovation Solution
The proposed display device incorporates a light splitting structure with a plurality of light splitting portions arranged along a row direction and extending along a column direction, where sub-pixels are arranged in sub-pixel row groups with shifted rows and gaps between sub-pixels, optimizing the ratio of light splitting portion size to sub-pixel pitch for improved brightness compensation and reduced moire effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If sub-pixels are arranged with gaps and shifted rows to compensate for discontinuous illumination, then brightness uniformity is improved, but device complexity increases
Solution Approach 1:
The display panel is divided into multiple sub-pixel row groups, each containing at least two rows of sub-pixels. Within each group, adjacent rows are shifted relative to each other in the row direction, creating an interleaved arrangement where gaps in one row align with sub-pixels in another row. This segmentation strategy compensates for discontinuous illumination by ensuring continuous coverage across the display area.
Solution Approach 2:
The sub-pixel rows are arranged asymmetrically with shifts in the row direction, breaking the conventional symmetric grid arrangement. This asymmetric shifting causes gaps between sub-pixels in one row to overlap with sub-pixels in adjacent rows, creating a互补 effect that compensates for illumination discontinuities and improves overall brightness uniformity.
2Manufacturing precision
If light splitting portions are sized to match sub-pixel pitch for high viewpoint density, then 3D display quality is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies that the ratio of light splitting portion size along the row direction to sub-pixel pitch is in the range of 0.9 to 1.1. This parameter optimization allows the light splitting portions to be slightly smaller or larger than the sub-pixel pitch, providing manufacturing tolerance while maintaining effective viewpoint density. This range-based parameter setting balances 3D display quality with manufacturability.
3Object-generated harmful factors
If sub-pixel row groups are shifted to create overlapping gaps and sub-pixels, then moire effects are reduced, but device complexity increases
Solution Approach 1:
The patent introduces a spatial dimensionality change by shifting sub-pixel rows in the row direction, creating a two-dimensional interleaved pattern. This dimensional arrangement causes gaps and sub-pixels to overlap in the column direction, effectively distributing light paths and reducing moire effects that would otherwise occur from direct alignment.
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 configuration enhances viewpoint density and achieves smooth parallax transition, improving the display effect by eliminating moire caused by discontinuous illumination and enabling ultra-multi-viewpoint naked-eye 3D display.
Implementation Method 1
a light splitting structure, configured to split image light emitted from the plurality of sub-pixels to different viewpoint regions
Implementation Method 2
the light splitting structure includes a plurality of light splitting portions arranged along a row direction and extending along a column direction
Data Source
AI summary
A display device is provided. The display device includes: a plurality of sub-pixels and a light splitting structure including a plurality of light splitting portions. Each of the plurality of sub-pixels includes a plurality of display units, the plurality of sub-pixels are arranged as a plurality of sub-pixel row groups, each of the plurality of sub-pixel row groups includes at least two rows of sub-pixels, a gap is provided between two adjacent sub-pixels in each row of sub-pixels, and two adjacent rows of sub-pixels in each sub pixel row groups are shifted from each other in a row direction so that a sub-pixel in one row and the gap between two adjacent sub-pixels in another row are shifted from each other; a ratio of a size of each light splitting portions along the row direction to a pitch of the sub-pixels is in a range from 0.9 to 1.1.