Display Sub-Pixel Zigzag Layout for Aperture Ratio and Color Purity
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Solution Overview
Problem
Existing display devices face issues with reduced aperture ratio, light color mixing, and decoloring defects due to the arrangement of adjacent sub-pixel columns, which affect the efficiency and quality of image display.
Innovation Solution
The sub-pixel columns are alternately arranged in a zigzag manner with a driving voltage line located between them, allowing for improved aperture ratio adjustment and reduced light color mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If sub-pixel columns are arranged in a conventional linear manner, then the layout is simple and easy to manufacture, but the aperture ratio is reduced and light color mixing occurs between adjacent columns
Solution Approach 1:
The patent applies asymmetry by arranging sub-pixel columns in a zigzag pattern rather than a conventional linear grid. Specifically, odd-numbered sub-pixel columns (G1, G2, G3...) are shifted in the first direction relative to even-numbered columns (G0, G1, G2...), creating an asymmetric offset that increases the aperture ratio by optimizing the spacing and overlap between adjacent columns while preventing light color mixing.
2Ease of manufacture
If sub-pixel columns are arranged in a conventional linear manner, then the layout is simple, but light color mixing occurs between adjacent columns affecting display quality
Solution Approach 1:
The asymmetric zigzag arrangement with offset positioning of odd and even columns creates sufficient spatial separation between adjacent sub-pixel columns, effectively preventing light color mixing while maintaining manufacturing feasibility through a systematic offset pattern.
Solution Approach 2:
The patent introduces driving voltage lines as intermediary elements positioned between adjacent sub-pixel columns. These lines serve as both electrical conductors and physical barriers that further prevent light color mixing between columns while providing necessary electrical connections for pixel operation.
3Area of moving object
If sub-pixel columns are arranged in a zigzag manner, then the aperture ratio is increased, but the arrangement complexity increases
Solution Approach 1:
The patent segments the sub-pixel columns into two distinct groups: odd-numbered columns (G1, G2, G3...) and even-numbered columns (G0, G1, G2...). Each group is positioned with a specific offset in the first direction, creating a systematic zigzag pattern that increases aperture ratio while maintaining manageable complexity through regular segmentation.
4Object-affected harmful factors
If driving voltage lines are positioned between sub-pixel columns, then light color mixing is reduced, but the device structure becomes more complex
Solution Approach 1:
The driving voltage lines perform multiple functions: they provide necessary electrical power to the sub-pixels and simultaneously serve as optical barriers that prevent light color mixing between adjacent columns. This multi-functionality reduces the need for separate structures, thereby limiting the increase in overall device complexity.
Data Source
AI summary
A display device includes a first sub-pixel column including a plurality of first sub-pixels disposed in a first direction, a second sub-pixel column including a plurality of second sub-pixels disposed in the first direction and disposed at one side of the first sub-pixel column in a second direction intersecting the first direction, and a driving voltage line including a first driving voltage line disposed at the other side of the first sub-pixel in the second direction and extending along the first sub-pixel column and a second driving voltage line electrically connected to the first driving voltage line and electrically connected to a 1-1 sub-pixel among the plurality of first sub-pixels and a 2-1 sub-pixel among the plurality of second sub-pixels. The first sub-pixel column and the second sub-pixel column are disposed alternately. The second driving voltage line is between the first sub-pixel column and the second sub-pixel column.