Lenticular Lens Component for Multi-Viewpoint Display
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Solution Overview
Problem
Existing image display devices that use lenticular lenses to display images to multiple viewpoints suffer from image quality degradation due to shielding regions, which can be exacerbated by the use of anisotropic scattering sheets, and are challenging to manufacture.
Innovation Solution
A lens component comprising K unit lenses arranged in parallel with M partial lenses and a flat part between them, where the partial lenses have different optical axes and the same focal length, is used in conjunction with a display panel to minimize the impact of shielding regions and facilitate easy manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an anisotropic scattering sheet is used to prevent black streaks, then image quality is improved, but light scattering occurs which lowers image quality
Solution Approach 1:
The harmful shielding regions (black matrix) are extracted and removed from the display panel structure. By eliminating the black matrix entirely and using a three-layer pixel structure without shielding regions, the source of black streaks is removed while maintaining image brightness without requiring scattering sheets.
Solution Approach 2:
A light guide layer is introduced as an intermediary between the pixel structure and the lenticular lens. This light guide layer uniformly distributes light from the pixels, preventing direct viewing of shielding regions while maintaining image quality and brightness without causing unwanted scattering.
2Illumination intensity
If a lens component with specific form is used to prevent image quality deterioration, then image quality is improved, but manufacturing difficulty increases
Solution Approach 1:
The lens component is segmented into multiple lenticular lenses arranged in an array, where each lens corresponds to a pixel. This segmentation allows standard manufacturing techniques to be applied to each individual lens while maintaining overall system performance. The segmentation also enables the removal of black matrix between pixels.
Solution Approach 2:
Each pixel is designed with local quality differences through a three-layer structure (first layer with first color, second layer with second color, third layer with third color), allowing each pixel to emit multiple colors without requiring color filters that would block light. This local color differentiation eliminates the need for traditional color filtering while maintaining image quality.
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
This configuration enhances image quality by reducing or eliminating black streaks caused by shielding regions and allows for easier manufacturing compared to traditional lenticular lens designs.
Implementation Method 1
a lenticular lens in which cylindrical lenses are arranged in parallel... for forming an image on the liquid crystal display panel as the object surface onto the image surface
Implementation Method 2
provides an anisotropic scattering sheet between the liquid crystal display panel and the lenticular lens, so as to prevent the image quality from being lowered by the shielding region between pixels... allows the anisotropic scattering sheet to scatter the light required for forming images
Data Source
AI summary
A lens component 10 comprises K unit lenses 11, each extending in the X direction and having a common structure, arranged in parallel at a minimum period PL in the Y direction. Each unit lens 11 includes two partial lenses 121, 122 sectioned within the minimum period PL in the Y direction and a flat part 13 disposed between the partial lenses 121, 122. The partial lenses 121, 122 have respective optical axes different from each other but parallel to the Z direction and form images of a common point on an object surface onto an image surface A at respective positions different from each other.