Transparent Display Panel Layout to Reduce Diffraction Ghost Images
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Solution Overview
Problem
Transparent display panels suffer from poor display effects due to strong diffraction effects caused by gaps between pixel columns, which result in noticeable ghost images.
Innovation Solution
The display panel design includes sub-pixel groups with varying intervals between adjacent sub-pixels, differing diffraction orders to reduce diffraction effects, and a staggered arrangement of sub-pixels to enhance display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If gaps are introduced between pixel columns to enable light transmission, then transparency is improved, but diffraction effects are enhanced causing ghost images
Solution Approach 1:
The patent applies asymmetry by making the intervals between adjacent sub-pixels different in different sub-pixel groups. Specifically, the first sub-pixel group has a first interval between adjacent sub-pixels, while the second sub-pixel group has a second interval that differs from the first interval. This asymmetric arrangement disrupts the periodic structure that causes strong diffraction, thereby reducing ghost images while maintaining transparency.
Solution Approach 2:
The patent applies local quality by varying the interval between adjacent sub-pixels in different local regions (sub-pixel groups). The first sub-pixel group has a different interval configuration compared to the second sub-pixel group, creating local variations in the optical structure. This local variation reduces the overall diffraction effect while preserving light transmission capability.
2Ease of manufacture
If uniform intervals are used between sub-pixels, then manufacturing is simplified, but diffraction ghost images are enhanced
Solution Approach 1:
The patent applies asymmetry by making the intervals between adjacent sub-pixels different in different sub-pixel groups. Specifically, the first sub-pixel group has a first interval between adjacent sub-pixels, while the second sub-pixel group has a second interval that differs from the first interval. This asymmetric arrangement disrupts the periodic structure that causes strong diffraction, thereby reducing ghost images while maintaining transparency.
3Device complexity
If sub-pixels are arranged in a regular grid pattern, then device complexity is reduced, but display quality deteriorates due to diffraction
Solution Approach 1:
The patent applies asymmetry by making the intervals between adjacent sub-pixels different in different sub-pixel groups. Specifically, the first sub-pixel group has a first interval between adjacent sub-pixels, while the second sub-pixel group has a second interval that differs from the first interval. This asymmetric arrangement disrupts the periodic structure that causes strong diffraction, thereby reducing ghost images while maintaining transparency.
Solution Approach 2:
The patent applies local quality by varying the interval between adjacent sub-pixels in different local regions (sub-pixel groups). The first sub-pixel group has a different interval configuration compared to the second sub-pixel group, creating local variations in the optical structure. This local variation reduces the overall diffraction effect while preserving light transmission capability.
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 staggered sub-pixel arrangement effectively reduces diffraction effects, improving the display panel's visibility and minimizing ghost images.
Implementation Method 1
Transparent display panels suffer from poor display effects due to strong diffraction effects caused by gaps between pixel columns
Data Source
AI summary
A display panel includes a base substrate and a plurality of sub-pixel groups. The plurality of sub-pixel groups includes a first sub-pixel group and a second sub-pixel group. The first sub-pixel group includes two adjacent sub-pixels with a first interval therebetween, and the second sub-pixel group includes two adjacent sub-pixels with a second interval therebetween. The first interval is different from the second interval.