OLED Pixel Arrangement Structure With Overlapping Sub-Pixels
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Solution Overview
Problem
Designing an effective pixel arrangement structure for OLED display panels that enhances display performance and reduces manufacturing complexity.
Innovation Solution
A pixel arrangement structure comprising repetition components arranged in rows and columns, with each component including a first pixel group, a second pixel group, and a third pixel group. The first and second pixel groups have sub-pixels that overlap in the column direction, while the third pixel group includes sub-pixels positioned between and adjacent to the first and second pixel groups, maintaining a 1:1:1 ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional pixel arrangement structures are used, then manufacturing process complexity remains high, but display effect is limited
Solution Approach 1:
The pixel arrangement is segmented into three distinct pixel groups (first, second, and third pixel groups) within each repetition component. This segmentation allows for optimized sub-pixel positioning and overlapping arrangements that improve display effect while maintaining manageable fabrication complexity through modular repetition.
Solution Approach 2:
The patent introduces a three-dimensional overlapping arrangement of sub-pixels in the column direction, moving beyond traditional two-dimensional planar arrangements. Adjacent sub-pixels overlap in the column direction to create vertical layering, which enhances display quality by improving pixel density and color accuracy without proportionally increasing horizontal space requirements.
2Manufacturing precision
If sub-pixels are arranged with overlapping in column direction, then display effect is improved, but mask opening complexity increases
Solution Approach 1:
The mask design is segmented to correspond with the three pixel groups, allowing each group to be addressed separately during fabrication. This segmentation simplifies the mask opening process by breaking down the complex overlapping arrangement into manageable fabrication steps.
Solution Approach 2:
The patent employs a preliminary action principle by using a specifically designed mask assembly that pre-configures the overlapping sub-pixel positions. The mask openings are predetermined and positioned to directly create the desired overlapping arrangement during vapor deposition, eliminating the need for complex post-fabrication adjustments.
3Productivity
If repetition components are arranged in rows and columns, then manufacturing efficiency is improved, but pixel arrangement complexity increases
Solution Approach 1:
The display panel is divided into multiple identical repetition components arranged in rows and columns. Each repetition component contains a standardized set of three pixel groups with specific sub-pixel arrangements. This segmentation into modular units simplifies manufacturing by enabling batch production and standardized fabrication processes.
Solution Approach 2:
While the repetition components are arranged in two-dimensional rows and columns for manufacturing efficiency, the sub-pixels within each component utilize three-dimensional overlapping in the column direction. This multi-dimensional approach allows complex pixel arrangements to be achieved without increasing horizontal space, maintaining manufacturing efficiency.
Data Source
AI summary
A pixel arrangement structure for a display panel includes a plurality of repetition components arranged in rows and columns. Each repetition component includes: a first pixel group including two or more first sub-pixels arranged in a column direction, two adjacent first sub-pixels at least partially overlapping with each other in the column direction; a second pixel group disposed on a side of the first pixel group in a row direction and including two or more second sub-pixels arranged in the column direction, two adjacent second sub-pixels at least partially overlapping with each other in the column direction; and a third pixel group including two or more third sub-pixels, the two or more third sub-pixels including at least one first-type third sub-pixel disposed between the first pixel group and the second pixel group, and at least one second-type third sub-pixel disposed on a side of the second pixel group.