Light-Splitting Display Layout for Bidirectional Naked-Eye 3D
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Solution Overview
Problem
Existing 3D display technologies struggle to provide a bidirectional naked-eye 3D experience with perfect compatibility between landscape and portrait orientations on mobile devices.
Innovation Solution
A display apparatus with a light-splitting assembly and pixel islands arranged in specific directions, utilizing light-splitting structures like cylindrical lenses to emit light in controlled angles, ensuring parallax images are visible in both horizontal and vertical orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional 3D display technologies are used, then 3D display capability is achieved, but compatibility between landscape and portrait orientations is poor
Solution Approach 1:
The patent introduces a light-splitting assembly with light-splitting structures arranged in a first direction that is oblique to both the horizontal and vertical directions of the display panel. This oblique arrangement enables the system to provide parallax images in both horizontal and vertical directions simultaneously, achieving bidirectional 3D display that is compatible with both landscape and portrait orientations without sacrificing 3D display capability
Solution Approach 2:
The light-splitting assembly is designed to perform multiple functions: it provides horizontal parallax images for traditional landscape viewing, vertical parallax images for portrait viewing, and maintains 2D display compatibility. This multi-functional design allows a single display system to serve multiple viewing modes and orientations effectively
2Adaptability or versatility
If light-splitting structures are added to enable bidirectional 3D display, then viewing angle and orientation compatibility improve, but device complexity increases
Solution Approach 1:
The light-splitting assembly is divided into multiple light-splitting structures that are periodically arranged in the first direction. Each light-splitting structure corresponds to specific pixel islands and works independently to redirect light in specific directions. This segmentation allows the complex function of bidirectional 3D display to be achieved through multiple simple, repetitive units rather than a single complex component
Solution Approach 2:
The light-splitting assembly acts as an intermediary component between the display panel and the viewer's eyes. It receives light from the pixel islands and redirects it to create parallax images in both horizontal and vertical directions. This intermediary approach allows bidirectional 3D functionality to be added without fundamentally redesigning the display panel itself, thus limiting the increase in overall device complexity
3Reliability
If multiple light-splitting structures are used to reduce crosstalk, then image quality improves, but manufacturing precision requirements increase
Solution Approach 1:
The light-splitting structures are designed as periodically repeating units that are identical or similar in structure. Each light-splitting structure is a copy of the others, arranged at regular intervals in the first direction. This periodic copying allows the system to achieve effective crosstalk reduction through the collective action of multiple structures while using standardized, easily manufacturable components with relaxed individual precision requirements
Solution Approach 2:
The patent optimizes key parameters such as the pitch between light-splitting structures, the oblique angle of the first direction relative to the panel directions, and the dimensions of individual structures. By carefully selecting these parameters, the system achieves effective crosstalk reduction while maintaining manufacturing feasibility. The periodic arrangement and specific geometric parameters enable predictable optical behavior that is tolerant to typical manufacturing variations
4Measurement precision
If pixel islands with multiple sub-pixels are arranged in specific directions, then resolution and viewing angle improve, but manufacturing complexity increases
Solution Approach 1:
The display panel is divided into multiple pixel islands, where each pixel island contains multiple sub-pixels arranged in the row direction. This segmentation allows the high-resolution display function to be distributed across many simple pixel units. Each pixel island can be manufactured using standard processes, and the collective arrangement achieves retina-level resolution without requiring complex individual pixel structures
Solution Approach 2:
The patent employs different arrangements and configurations for different regions of the display. Pixel islands are selectively positioned and configured to work with the light-splitting structures. The sub-pixels within each pixel island are arranged with specific aperture ratios and spacing optimized for their local function in the bidirectional 3D system, allowing high resolution to be achieved through localized optimization rather than uniform complexity across the entire display
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
Enables bidirectional 3D display with reduced crosstalk and improved user experience, maintaining 2D display compatibility and achieving retina-level resolution with enhanced viewing angles and reduced manufacturing complexity.
Implementation Method 1
a light-splitting assembly at a display side of the display panel, where the light-splitting assembly includes a plurality of light-splitting repeating units extending in a first direction and continuously arranged in the preset horizontal direction; each light-splitting repeating unit includes M light-splitting structures extending in the first direction
Data Source
AI summary
Provides is a display apparatus including: a display panel including: pixel islands in arrays in a row direction and a column direction, pixel islands include n sub-pixels at intervals in the row direction, n>1. The display panel has a preset horizontal direction and a preset vertical direction perpendicular to the preset horizontal direction; a light-splitting assembly at a display side of the display panel, the light-splitting assembly includes light-splitting repeating units extending in a first direction and continuously in the preset horizontal direction, light-splitting repeating units include M light-splitting structures extending in the first direction; a width of M light-splitting structures is equal to a width of K pixel islands in row direction, M and K are positive integers, an included angle between the first direction and the preset horizontal direction and an included angle between the first direction and the preset vertical direction are greater than 0.