Staggered Sub-Pixel Grating for Multi-View Display Interference
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Solution Overview
Problem
Current display technologies face interference issues between viewpoint images due to limited viewing angles, making it difficult for multiple users to view a single display without moire or color moire interference.
Innovation Solution
The arrangement of sub-pixel units on a substrate, where each sub-pixel group includes multiple units configured for different viewpoint images, with staggered columns and specific grating opening regions, increases viewing angles and reduces interference by ensuring each viewpoint image is only visible within its corresponding angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a grating is used to display multiple viewpoint images, then stereoscopic display capability is improved, but viewing angle range is limited and interference occurs between viewpoint images
Solution Approach 1:
The display is segmented into multiple sub-pixel columns, where each column displays a specific viewpoint image. The grating is divided into multiple opening regions, with each region corresponding to a specific sub-pixel column and viewpoint image. This segmentation isolates the viewing angles of different viewpoint images, preventing interference while maintaining stereoscopic display capability.
2Adaptability or versatility
If viewing angle range is increased to allow multiple persons to view, then accessibility is improved, but interference between different viewpoint images occurs
Solution Approach 1:
Each opening region of the grating is assigned a specific geometric shape (triangle or quadrilateral) that corresponds to the local arrangement of sub-pixel columns. This local quality optimization ensures that each viewpoint image is directed to its specific viewing angle range, enabling multi-user viewing while preventing moire and color moire interference through precise local light control.
Data Source
Figure 1~3a
Figure 3b~4
Figure 5a
AI summary
A substrate, a grating and a display panel are provided. The substrate comprises a plurality of sub-pixel groups arranged periodically, each of the plurality of sub-pixel groups comprises: a first type of sub-pixel group which is configured for displaying a plurality of viewpoint images and comprises a first sub-pixel unit (201) configured for displaying a first viewpoint image, a second sub-pixel unit (201) configured for displaying a second viewpoint image and a third sub-pixel unit (203) configured for displaying a third viewpoint image; each of the plurality of sub-pixel groups at least comprises a first sub-pixel column and a second sub-pixel columns; and the first sub-pixel unit (201) is located in the first sub-pixel column of each of the plurality of sub-pixel groups, the second sub-pixel unit (202) and the third sub-pixel unit (203) are located in the second sub-pixel column of each of the plurality of sub-pixel groups, the second sub-pixel column and the first sub-pixel column are adjacent to each other and are staggered a preset distance in a vertical direction, and the preset distance is smaller than a width of one sub-pixel unit. Through the arrangement of the sub-pixel units on the substrate, the viewing angle of each viewpoint image is increased, and because within each viewing angle, only the viewpoint image corresponding to the viewing angle can be seen, the interference between different viewpoint images is reduced.