Naked Eye 3D Display Grating Angle Optimization
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Solution Overview
Problem
Traditional naked eye stereoscopic display devices suffer from Moire fringe phenomena due to the interference between light passing through the grating and the black matrix, which reduces the effectiveness of 3D display.
Innovation Solution
A stereoscopic display device with a display panel comprising alternately arranged first and second display units and a grating with a preset angle between the optical structures and the X direction of the display panel, optimizing the angle to reduce Moire fringe interference, where the angle is determined by specific formulas to minimize crosstalk and enhance 3D image separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a grating is mounted on a display panel for naked eye 3D display, then stereoscopic image separation is achieved, but Moire fringe phenomenon occurs due to interference between light passing through the grating and black matrix
Solution Approach 1:
The patent changes the spatial frequency parameter of the grating by adjusting the pitch between adjacent gratings to be less than half the pitch of the black matrix. This parameter modification prevents the interference condition that causes Moire fringes while maintaining the stereoscopic image separation function.
Solution Approach 2:
The patent introduces a new dimensional constraint by establishing a specific pitch relationship between the grating structure and the black matrix. By controlling the grating pitch in the spatial domain to be less than half the black matrix pitch, the interference pattern is eliminated while preserving the optical separation function.
2Area of stationary object
If the spatial frequency of the grating is close to the spatial frequency of the black matrix, then the grating structure is compact, but Moire fringes are formed reducing display quality
Solution Approach 1:
The patent modifies the spatial frequency parameter of the grating by setting the pitch between adjacent gratings to be less than half the pitch of the black matrix. This parameter change decouples the spatial frequencies of the grating and black matrix, preventing Moire fringe formation while maintaining compact grating structure.
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 effectively reduces Moire fringe interference, allowing for clear separation of left and right eye images and improved 3D display quality without the need for external viewing aids, enhancing the overall stereoscopic display experience.
Implementation Method 1
The grating can be a lenticular grating or a slit grating; the displayed images can then be separated with the separating effect of the grating.
Implementation Method 2
the grating comprises a plurality of optical structures arranged parallel to each other
Data Source
AI summary
The embodiments of the present invention provide a stereoscopic display device and a method for manufacturing the same, relating to the technical field of display; the stereoscopic display device and the method for manufacturing the same can reduce Moire fringe phenomenon during displaying of a naked eye 3D display device. The stereoscopic display device comprises a display panel and a grating, wherein the display panel comprises a plurality of first display units and a plurality of second display units, the plurality of first display units and the plurality of second display units are arranged alternately in a Y direction of the display panel; the grating comprises a plurality of optical structures arranged parallel to each other; a preset angle β is arranged between the optical structure and an X direction of the display panel, thereby reducing Moire fringe phenomenon during displaying.