Micro-LED Pixel Arrangement for Edge Color Shift Elimination

Solution Overview

Problem

Existing Micro-LED display panels suffer from edge color shift due to the arrangement of sub-pixels in prior art, which affects the viewing experience.

Innovation Solution

A Micro-LED pixel arrangement structure where the sub-pixels in the leftmost and rightmost columns have perpendicular arrangement directions compared to those in other rows, ensuring consistent distances and intervals to prevent edge color shifts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If sub-pixels are arranged in the order of Red, Green, and Blue (RGB) from left to right in each module, then the manufacturing process is simple and consistent, but adjacent sub-pixels of the same color form on the edges, causing edge color shift that affects viewing experience

Engineering Contradiction:

Improvesub-pixel arrangement consistencyVSAvoidedge color shift

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent applies asymmetry by changing the sub-pixel arrangement from the conventional symmetric RGB pattern to an asymmetric pattern where edge columns contain only two color sub-pixels instead of three. Specifically, the first column contains only Green and Blue sub-pixels, and the last column contains only Red and Green sub-pixels, breaking the symmetry of the traditional RGB repetition pattern. This asymmetric design prevents same-color sub-pixels from aligning on edges, thereby eliminating edge color shift while maintaining manufacturing feasibility.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The patent applies local quality by making the edge columns different from the internal columns in terms of sub-pixel composition. While internal columns follow the standard three-color sub-pixel pattern, the edge columns are specially designed to contain only two colors each. This localized modification at critical edge positions addresses the edge color shift problem without changing the overall arrangement pattern across the entire display panel, thus maintaining ease of manufacture while improving display quality at problematic locations.

Inventive Principle:

Principle #3Local quality

2Area of stationary object

If multiple display modules are spliced together to form a large display panel, then the display size can be increased, but splicing positions create edge color shifts that affect overall display quality

Engineering Contradiction:

Improvedisplay panel sizeVSAvoidsplicing position color shift

Core Design Contradiction:

Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The asymmetric edge column design creates a unique edge pattern that can be used for identification and alignment during module splicing. When modules are assembled, the asymmetric edge arrangement ensures that modules are positioned correctly relative to each other, preventing color mismatch at splicing positions. The distinctive two-color edge columns serve as visual and structural guides for proper module alignment, thereby eliminating color shift issues at splicing positions while allowing the display panel to be scaled to larger sizes.

Inventive Principle:

Principle #4Asymmetry

3Ease of manufacture

If all sub-pixels in edge columns are arranged with the same orientation as internal columns, then the manufacturing process is simplified, but single-color sub-pixels appear on edges causing color inconsistency

Engineering Contradiction:

Improvesub-pixel arrangement uniformityVSAvoidedge color consistency

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent applies local quality by making the edge columns different from the internal columns in terms of sub-pixel composition. While internal columns follow the standard three-color sub-pixel pattern, the edge columns are specially designed to contain only two colors each. This localized modification at critical edge positions addresses the edge color shift problem without changing the overall arrangement pattern across the entire display panel, thus maintaining ease of manufacture while improving display quality at problematic locations.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20230064639A1Micro-led pixel arrangement structure, arrangement method, and display panel

Publication Date: 2023.03.02 KONKA GROUP

AI summary

Disclosed are a Micro-LED pixel arrangement structure, an arrangement method, and a display panel. The pixel arrangement structure comprises a plurality of pixel groups, each comprises a plurality of sub-pixels. The arrangement directions of the sub-pixels in the plurality of pixel groups on the leftmost column and in the plurality of pixel groups on the rightmost column are perpendicular to the arrangement direction of the sub-pixels in other pixel groups on the first row or the last row. The arrangement directions of the sub-pixels in the pixel groups on the leftmost column and in the pixel groups on the rightmost column in the Micro-LED pixel arrangement structure are perpendicular to the arrangement directions of the sub-pixels in other pixel groups on the first row or the last row, thereby avoiding edge color shift and improving the display quality.