Nested Pixel Unit Arrangement for OLED Color Separation
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Solution Overview
Problem
Current OLED display technologies, such as standard RGB and PenTile arrangement modes, face challenges in minimizing the separation distance between sub-pixel regions of the same illuminant color, which affects color separation and display quality.
Innovation Solution
A novel pixel unit arrangement featuring a first sub-pixel region surrounded by a second and third sub-pixel region, where the second and third sub-pixel regions also surround each other, with specific area and color configurations, reducing the separation distance between same-illuminant color sub-pixel regions in adjacent pixel units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If standard RGB or PenTile arrangement modes are used, then the display panel can be manufactured with conventional processes, but the separation distance between sub-pixel regions of the same illuminant color cannot be minimized, affecting color separation and display quality
Solution Approach 1:
The patent applies nesting by arranging sub-pixel regions in concentric rings where the first sub-pixel region is at the center, surrounded by the second sub-pixel region, which is in turn surrounded by the third sub-pixel region. This nested configuration allows sub-pixels of different colors to be closely packed while maintaining distinct separation, minimizing the distance between same-color sub-pixels in adjacent pixel units and improving color separation without requiring complex manufacturing processes
Solution Approach 2:
The patent uses the same illuminant color for corresponding sub-pixel regions in adjacent pixel units (e.g., the first sub-pixel region of one pixel unit has the same illuminant color as the first sub-pixel region of the adjacent pixel unit). This copying approach ensures consistent color separation across the display panel while maintaining the minimized separation distance achieved by the nested arrangement
Data Source
AI summary
Embodiments of the present disclosure provide a pixel unit, a display substrate, and a method for manufacturing the display substrate. The pixel unit includes: a first sub-pixel region; a second sub-pixel region located at a periphery of the first sub-pixel region and surrounding the first sub-pixel region; and a third sub-pixel region located at a periphery of the second sub-pixel region and surrounding the second sub-pixel region.