Autostereoscopic Lens Panel Aberration Control via Segmented Electrodes
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Solution Overview
Problem
Current stereoscopic image display devices using lens panels suffer from aberrations that degrade the quality of 3D images, limiting their effectiveness in providing clear and accurate three-dimensional perception.
Innovation Solution
The design incorporates a lens panel with a photomodulation unit and electrode units where the first electrode unit includes multiple electrodes at different layers, electrically connected, and the second electrode unit has corresponding electrodes with specific openings and insulating layers, allowing for controlled light path modulation to reduce aberrations and enhance image clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lens panel is used to enable autostereoscopic 3D image display, then the 3D image can be observed without spectacles, but lens aberrations occur that degrade image quality
Solution Approach 1:
The lens panel is divided into multiple sub-lenses arranged in an array, where each sub-lens corresponds to specific pixels on the display panel. This segmentation allows precise control of light paths from different pixels to different viewing angles, reducing aberrations while maintaining autostereoscopic functionality.
Solution Approach 2:
Each sub-lens is designed with optimized local optical properties, including specific focal lengths and aperture sizes tailored to its position in the array. This local optimization ensures that each sub-lens minimizes aberrations for its specific viewing zone, collectively improving overall image quality across the entire display.
2Device complexity
If a simple lens array is used to reduce device complexity, then manufacturing is easier, but lens aberrations increase degrading stereoscopic image characteristics
Solution Approach 1:
The patent optimizes key optical parameters of the sub-lenses, including focal length, aperture diameter, and spacing between lenses. By carefully adjusting these parameters, the system achieves reduced aberrations and improved stereoscopic image characteristics without requiring complex additional components.
Solution Approach 2:
The patent considers the three-dimensional arrangement of sub-lenses relative to the display panel, optimizing not only lateral spacing but also the distance between the lens array and the display surface. This dimensional optimization allows simple lens structures to achieve complex optical performance by exploiting spatial relationships.
Data Source
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AI summary
A stereoscopic image display device (1000) according to an exemplary embodiment includes: a display panel (10) including a plurality of pixels (PX); and a lens panel (20) positioned at a surface where the display panel (10) displays an image, wherein the lens panel (20) includes: a photomodulation unit (300) controlling a light path of light emitted from the display panel (10); and a first electrode unit (100) and a second electrode unit (200) facing each other with the photomodulation unit (300) interposed therebetween, and wherein the first electrode unit (100) includes a plurality of electrodes (121, 122, 123) that are electrically connected to each other and positioned at different layers, and the second electrode unit (200) includes at least one corresponding electrode (221) overlapping at least one among the plurality of electrodes (121, 122, 123).