Micro LED Display Panel Active Area Subpixel Arrangement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Micro LED display panels face the screen door effect due to large sub-pixel sizes, requiring numerous micro LEDs to fill the gaps, leading to high costs and reduced display quality.
Innovation Solution
A micro LED display panel design featuring active areas with a specific arrangement of micro LEDs, including odd-numbered and even-numbered columns and rows, with varying colors and distributions to minimize the number of LEDs while maintaining high resolution and eliminating the screen door effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the sub-pixel area is increased to reduce the number of micro LEDs, then manufacturing cost is reduced, but the screen door effect worsens and display quality deteriorates
Solution Approach 1:
The patent divides each logical pixel into multiple physical sub-pixels (e.g., 9 sub-pixels per pixel), where each sub-pixel contains multiple micro LEDs arranged in a grid pattern. This segmentation allows the use of fewer micro LEDs per logical pixel while maintaining display resolution, as adjacent sub-pixels share boundaries that eliminate the screen door effect.
Solution Approach 2:
The patent implements a nested structure where multiple micro LEDs are arranged within each sub-pixel, and multiple sub-pixels are nested within each logical pixel. This hierarchical nesting allows efficient packing of micro LEDs while maintaining the illusion of continuous display through shared boundaries between nested elements.
2Object-affected harmful factors
If micro LEDs are densely packed to eliminate screen door effect, then display quality is improved, but manufacturing cost increases due to higher quantity of micro LEDs required
Solution Approach 1:
The patent merges adjacent sub-pixels to form logical pixels, where shared boundaries between sub-pixels eliminate the need for additional micro LEDs that would otherwise be required to fill gaps. This merging approach reduces the total quantity of micro LEDs needed while maintaining display continuity and eliminating the screen door effect.
Solution Approach 2:
The patent transitions from a one-to-one mapping of micro LEDs to pixels to a many-to-few mapping by introducing sub-pixels as an intermediate layer. This dimensional change in the organizational structure allows multiple micro LEDs per sub-pixel and multiple sub-pixels per logical pixel, reducing the overall micro LED count while maintaining display quality.
3Manufacturing precision
If the number of micro LEDs per sub-pixel is increased, then resolution is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies local quality by allowing different numbers and arrangements of micro LEDs in different sub-pixels (e.g., corner sub-pixels vs. edge sub-pixels vs. center sub-pixels). This localized variation optimizes the overall display resolution while simplifying manufacturing, as each sub-pixel can be independently configured based on its position and function.
Data Source
AI summary
A micro LED display panel includes a plurality of active areas disposed on a substrate and arranged in an array. A plurality of micro LEDs are uniformly arranged in each of the active areas to achieve high-resolution of micro LED display panel. By controlling the number of micro LEDs in each of the active areas, the production cost can be effectively controlled, while a screen door effect can be eliminated to thereby enhance market competitiveness of the micro LED display panel.