Display Substrate Pixel Layout With Enlarged Transmission Regions
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Solution Overview
Problem
Large-size high PPI transparent displays suffer from a diffraction ghosting phenomenon due to smaller pixel sizes and reduced transparent regions, affecting customer experience.
Innovation Solution
The display substrate design includes pixel regions with adjacent sub-pixels and a light transmission region twice the size of a single pixel region, with folded border lines to reduce diffraction and improve transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel size is reduced to increase PPI, then display resolution is improved, but diffraction ghosting phenomenon occurs due to smaller pixel sizes and reduced transparent regions
Solution Approach 1:
The pixel region is divided into multiple sub-pixels (at least three sub-pixels per pixel region), and the pixel repeat unit is segmented into multiple pixel regions with light transmission regions between them. This segmentation allows each sub-pixel to be smaller (reducing diffraction) while the overall structure maintains sufficient transparent region area
Solution Approach 2:
The patent introduces a new structural dimension by creating pixel repeat groups with multiple pixel regions arranged in both first and second directions, with light transmission regions positioned between pixel regions. This multi-dimensional arrangement allows the light transmission region area to be doubled without increasing the overall pixel footprint, thus maintaining high PPI while reducing diffraction ghosting
2Measurement precision
If pixel size is reduced to increase PPI, then display resolution is improved, but transparent region area is reduced affecting transparency
Solution Approach 1:
The patent merges multiple light transmission region areas within the pixel repeat unit structure. Specifically, light transmission regions are positioned between multiple pixel regions (first, second, and optionally third pixel regions) within each pixel repeat unit, effectively doubling the total light transmission region area compared to conventional single-light-transmission-region designs
Solution Approach 2:
By arranging pixel regions and light transmission regions in a multi-dimensional pixel repeat unit structure (with both first and second directions), the patent increases the total light transmission area without proportionally increasing the overall pixel size, thus maintaining high PPI while improving transparency
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 design reduces the diffraction ghosting effect, enhancing the visual experience by maintaining display quality and transparency.
Implementation Method 1
a light transmission region located between the two pixel regions
Implementation Method 2
causing diffraction ghosting phenomena that affect customer experience
Data Source
AI summary
A display substrate and a display apparatus. Each pixel repeat unit (10) includes two pixel regions (P1, P2) arranged in a first direction, and a light transmission region (T) located between the two pixel regions (P1, P2), where each of the pixel regions (P1, P2) is provided with at least three sub-pixels (A, B, C) which are adjacently provided; and the area of the light transmission region (T) is equal to twice the area of a light transmission region (T) corresponding to a single pixel region (P1, P2).