Oblique Light-Splitting Display Layout for Bidirectional 3D Viewing
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Solution Overview
Problem
Current 3D display technologies face challenges in providing bidirectional naked-eye 3D visuals with perfect compatibility between landscape and portrait orientations, limiting user experience on mobile devices.
Innovation Solution
A display apparatus featuring a light-splitting assembly with obliquely placed light-splitting structures relative to the preset horizontal and vertical directions, combined with a display panel comprising pixel islands and sub-pixels arranged in specific configurations to achieve directional light emission and parallax images in both orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional light-splitting structures are used with alignment directions parallel to horizontal or vertical directions, then the structure is simple and easy to manufacture, but bidirectional 3D display effect cannot be achieved
Solution Approach 1:
The light-splitting structure employs an oblique alignment direction that is neither parallel to the horizontal nor vertical direction, creating an asymmetric configuration relative to the pixel array. This asymmetric orientation enables the light-splitting structure to direct light at angles that create parallax effects in both horizontal and vertical directions simultaneously, achieving bidirectional 3D display capability without requiring multiple separate light-splitting components.
2Measurement precision
If pixel density is increased to maintain high resolution, then display quality improves, but crosstalk between adjacent viewpoints increases
Solution Approach 1:
The patent applies different functional characteristics to different regions of the display. Each pixel island contains sub-pixels with specific light-emission characteristics tailored to their position, and the light-splitting structure is configured to direct light from each sub-pixel at specific angles. This local differentiation ensures that light from adjacent pixels is directed to distinct viewing zones, reducing crosstalk while maintaining high overall resolution.
Solution Approach 2:
The display panel is segmented into multiple pixel islands, where each pixel island contains multiple sub-pixels. The light-splitting structure is correspondingly segmented into multiple light-splitting units, with each unit associated with a specific pixel island or sub-pixel. This segmentation allows independent control and optimization of light direction for each unit, enabling high resolution while minimizing interference between adjacent viewing zones.
3Adaptability or versatility
If light-splitting structures are oriented at oblique angles to achieve bidirectional 3D effect, then 3D display quality improves, but manufacturing precision requirements increase
Solution Approach 1:
The oblique light-splitting structure serves multiple functions simultaneously: it acts as a light-directing element, a viewing-angle control mechanism, and a parallax-generating component for both horizontal and vertical directions. By using a single oblique-oriented structure rather than multiple separately oriented structures, the patent reduces the number of alignment operations required while achieving complex bidirectional 3D effects.
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 improved user experience by allowing parallax images to be seen in both horizontal and vertical directions, maintaining high resolution and reducing crosstalk between viewpoints.
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.