OLED Display Panel Layout With Non-Uniform Sub-Pixel Spacing
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Solution Overview
Problem
OLED display panels face issues with poor color presentation, visual resolution, diagonal continuity, and high fabrication difficulty due to uniform sub-pixel spacing and large supporter areas, leading to contamination defects and process challenges.
Innovation Solution
A display panel design with non-uniform sub-pixel spacing, including first, second, and third sub-pixels of varying areas, arranged in specific configurations to allow for increased opening areas and reduced supporter size, using masks with tailored openings for efficient evaporation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If uniform sub-pixel spacing is used, then fabrication process is simplified, but color presentation and visual resolution deteriorate
Solution Approach 1:
The patent implements non-uniform sub-pixel spacing where different regions of the display panel have different spacing characteristics. Specifically, sub-pixels in different color groups (first, second, third sub-pixels) are spaced differently to optimize color presentation and visual resolution while maintaining manageable fabrication complexity through localized spacing variations rather than complete uniformity.
2Stability of the object's composition
If large supporter areas are used, then structural stability is improved, but contamination defects and fabrication difficulty increase
Solution Approach 1:
The patent divides the supporter structure into multiple smaller supporter regions corresponding to different sub-pixel groups. Instead of using large continuous supporter areas, the supporters are segmented to align with the non-uniform sub-pixel spacing, reducing the overall supporter area while maintaining structural stability where needed and minimizing contamination risks in other areas.
3Manufacturing precision
If non-uniform sub-pixel spacing is used, then color presentation and visual resolution are improved, but fabrication difficulty and mask tensioning increase
Solution Approach 1:
The patent systematically varies the spacing parameters between sub-pixels of different colors (first, second, and third sub-pixels with different areas) to optimize color presentation and visual resolution. By carefully controlling and differentiating the spacing parameters rather than using uniform spacing, the invention achieves superior display quality while keeping the fabrication process manageable through defined parameter variations.
4Use of energy by moving object
If sub-pixels of varying areas are used, then luminous efficiency is optimized, but mask complexity and fabrication precision requirements increase
Solution Approach 1:
The patent assigns different areas to sub-pixels of different colors (first, second, and third sub-pixels) to optimize luminous efficiency for each color type. This local differentiation in sub-pixel area allows each color to contribute optimally to overall luminous efficiency while the systematic arrangement and defined spacing relationships maintain manageable mask complexity and fabrication precision requirements.
Data Source
AI summary
There is provided a display panel, including: pixel units arranged in an array; each pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel emitting light of different colors and having areas sequentially increased; along a column direction of the array, for any adjacent pixel units, the second sub-pixel of the former pixel unit is arranged adjacent to the first sub-pixel of the latter pixel unit; third sub-pixels in the adjacent pixel units are arranged in sequence; a minimum distance and a maximum distance exist between the third sub-pixels adjacent to each other in the adjacent pixel units; for any adjacent pixel units, the second sub-pixel of the former pixel unit and the first sub-pixel of the latter pixel unit, which are adjacent to each other, are kept apart by a first distance being greater than the minimum distance and less than the maximum distance.