3D Display Assembly Grating Misalignment for Moiré Fringe Reduction
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Solution Overview
Problem
Existing display assemblies using delta pixels combined with slit gratings for naked eye 3D display suffer from serious moiré fringe phenomena, which negatively impact the display effect.
Innovation Solution
A 3D display assembly with a grating on the light output side of the display panel, where sub-pixels are arranged in columns with alternating first and second sub-pixel groups, and light-shielding parts are misaligned to reduce moiré fringes by creating an inclination effect without increasing crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If delta pixels are combined with slit gratings to realize naked eye 3D display, then low crosstalk and strong 3-D percept are achieved, but serious moiré fringe phenomenon occurs which affects the display effect
Solution Approach 1:
The patent introduces asymmetric displacement between adjacent sub-pixel groups in different columns. Specifically, sub-pixels in adjacent columns are offset by a displacement amount in the column direction, breaking the symmetric periodic structure that causes moiré fringes. This asymmetric arrangement maintains the 3D display function while eliminating the harmful interference patterns.
Solution Approach 2:
The patent addresses the moiré fringe problem by introducing a displacement in the column direction (first direction), which is perpendicular to the traditional row-direction arrangement. This dimensional change in the sub-pixel layout disrupts the periodic interference pattern while preserving the 3D viewing effect through the grating structure.
2Object-affected harmful factors
If sub-pixels are arranged in columns with alternating first and second sub-pixel groups, then moiré fringes are reduced, but device complexity increases
Solution Approach 1:
The patent divides the sub-pixels into distinct first sub-pixel groups and second sub-pixel groups that are alternately arranged in columns. Each group is further segmented by introducing a displacement between adjacent columns. This segmentation approach systematically reduces moiré fringes while maintaining a structured, manufacturable pattern through repetitive unit cell design.
Data Source
AI summary
In accordance with some embodiments of the present disclosure, a three dimensional (3D) display assembly, a driving method thereof, and a display device are provided. The 3D display assembly includes a display panel comprising: a color filter substrate comprising a black matrix, a plurality of sub-pixels defined by the black matrix arranged in columns along a first direction, and a grating comprising a plurality of light-shielding parts arranged in an array form to define a plurality of openings; wherein: the grating is located on a light output side of the display panel, and a center line of a central opening of the grating is overlapped with a center line of the black matrix.