Transparent OLED Substrate Virtual Quadrilateral Pixel Arrangement
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Solution Overview
Problem
Existing transparent OLED display technologies face challenges in achieving high pixel density without reducing ambient light transmittance and suffer from issues like edge color deviation and graininess due to centralized subpixel arrangements.
Innovation Solution
A display substrate design featuring island regions with subpixels arranged in a virtual quadrilateral pattern, where first subpixels are at vertex positions, and second and third subpixels are on center lines, allowing for independent light emission and improved dispersity, along with a bridge region for signal lines to enhance light transmittance and reduce pixel density requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If subpixels are arranged in a centralized pattern to increase pixel density, then pixel density is improved, but ambient light transmittance deteriorates and edge color deviation occurs
Solution Approach 1:
The display substrate is divided into multiple island regions with hole regions between them, segmenting the subpixel arrangement to allow light transmission through the hole regions while maintaining high pixel density in the island regions
Solution Approach 2:
The subpixels are arranged asymmetrically within each island region according to a virtual quadrilateral pattern, with different subpixel types positioned at specific locations to optimize both density and light transmission characteristics
2Productivity
If subpixels are arranged in a centralized pattern to increase pixel density, then pixel density is improved, but image uniformity deteriorates due to graininess and edge color deviation
Solution Approach 1:
Different regions of the display substrate have different subpixel arrangements - island regions contain subpixels while hole regions are transparent, creating local quality variations that improve overall image uniformity
Solution Approach 2:
The subpixel arrangement follows a virtual quadrilateral pattern with center lines, adding a dimensional structure that distributes subpixels more evenly and reduces edge color deviation
3Manufacturing precision
If subpixels are closely arranged to reduce dark areas, then display fineness is improved, but manufacturing complexity increases
Solution Approach 1:
The virtual quadrilateral pattern and center line definitions are established in advance to guide subpixel placement, simplifying the manufacturing process by providing a clear structural framework before actual subpixel arrangement
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 improves the uniformity and fineness of the display image by reducing dark areas and graininess, while maintaining high ambient light transmittance and avoiding edge color deviations, thus enhancing the display effect.
Implementation Method 1
An organic light-emitting diode (OLED) is an active light emitting display device
Data Source
AI summary
A display substrate and a driving method of the same, and a display device, relate to the technical field of displaying. The display substrate includes a plurality of island regions separated from each other, and hole regions located between adjacent island regions; wherein, each of the plurality of island regions comprises a plurality of subpixels, the plurality of subpixels include first subpixels, second subpixels and third subpixels; the first subpixels are located at four vertex positions of a virtual quadrilateral; the second subpixels and the third subpixels are located at positions of two center lines of the virtual quadrilateral, to separate adjacent first subpixels; each of the center lines is a connecting line between midpoints of a pair of opposite side edges of the virtual quadrilateral.