3D Display Microlens Array with Triangular Sub-Pixel Segmentation
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Solution Overview
Problem
Current 3D display devices using binocular parallax cause eye fatigue and dizziness due to vergence-accommodation conflict, and they have low 3D resolution due to large microlens sizes that fail to meet visual requirements.
Innovation Solution
A display device with a microlens array and pixel islands, where each microlens unit corresponds to a set of sub-pixels forming a triangle, reducing microlens size and increasing resolution by arranging sub-pixels in a triangular configuration on adjacent pixel islands, and using time division multiplexing to enhance image rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If binocular parallax is used for 3D display, then stereoscopic vision is achieved, but eye fatigue and dizziness occur due to vergence-accommodation conflict
Solution Approach 1:
The patent segments the display into multiple pixel islands, each corresponding to a microlens unit, creating discrete light fields that can be independently controlled. This segmentation enables the system to present different images to left and right eyes while maintaining proper accommodation cues, thereby resolving the vergence-accommodation conflict that causes eye fatigue and dizziness in traditional binocular parallax displays.
Solution Approach 2:
The patent introduces microlens units as an intermediary optical element between the display panel and the viewer's eyes. These microlens units manipulate light fields to create accurate stereoscopic images while maintaining proper focus cues, serving as a mediator that reconciles the conflict between vergence (eye rotation) and accommodation (lens focusing) that plagues conventional 3D display methods.
2Area of stationary object
If microlens size is increased, then 3D display coverage is improved, but 3D resolution decreases
Solution Approach 1:
The patent divides the display area into multiple pixel islands, each associated with a microlens unit. This segmentation allows the system to use smaller microlens units that maintain high resolution while collectively covering a large display area through the multiplexed arrangement of multiple pixel islands. Each microlens unit can be small and precise, yet the overall system achieves extensive coverage.
Solution Approach 2:
The patent arranges sub-pixels in a triangular configuration across multiple pixel islands, utilizing spatial multiplexing in the lateral dimensions. This dimensional arrangement allows the system to pack more microlens units into the display area, increasing both coverage and resolution simultaneously by effectively using two-dimensional space more efficiently.
3Adaptability or versatility
If sub-pixels are arranged in triangular configuration across pixel islands, then viewpoint number increases, but device complexity increases
Solution Approach 1:
The patent segments the display into multiple pixel islands with triangular sub-pixel arrangements, where each island corresponds to a microlens unit. This segmentation provides a modular framework that systematically increases the number of viewpoints through controlled replication of the triangular pattern across multiple islands, making the complexity manageable through regular, repeating structures rather than random or irregular arrangements.
Solution Approach 2:
The patent utilizes the lateral dimensions of the display panel to arrange multiple pixel islands in a multiplexed configuration. By extending the triangular sub-pixel arrangement across multiple spatial locations in the lateral plane, the system increases the number of available viewpoints without requiring additional depth layers, thereby managing device complexity through two-dimensional spatial multiplexing.
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 reduces eye fatigue, increases 3D image resolution, and improves the overall visual experience by allowing more viewpoints and higher refresh rates, effectively addressing the limitations of existing 3D display technologies.
Implementation Method 1
a microlens array disposed on a light-emitting side of the display panel... each microlens unit corresponds to a set of sub-pixels... the microlens unit and the display panel... a distance h between the microlens unit and the display panel
Data Source
AI summary
Provided is a display device. The display device includes a display panel and a microlens array disposed on a light-emitting side of the display panel, wherein the display panel includes a plurality of pixel islands in which a first pixel island displaying a first color, a second pixel island displaying a second color, and a third pixel island displaying a third color adjacent to one another form a repeating unit. In a same repeating unit, three sub-pixels at the same positions relative to their respective microlens units in the first pixel island, the second pixel island, and the third pixel island are disposed at three vertexes of a triangle respectively, and thus form a color fusion pixel. In addition, the display device further includes microlens arrays in one-to-one correspondence with the plurality of pixel islands to realize 3D display.