Cross-shaped sub-pixel triangular arrangement for visual resolution

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Solution Overview

Problem

Current display panels face challenges in achieving high visual resolution without increasing the complexity of the manufacturing process, as the physical and visual resolutions are equal with traditional pixel designs, and higher visual resolution requirements complicate the manufacturing process.

Innovation Solution

A pixel array with cross-shaped sub-pixels arranged in a triangular formation, allowing for tighter packing and higher visual resolution by forming a triangle with the center points of the sub-pixels, and a driving method that shares brightness values between sub-pixels to enhance output areas, thereby increasing visual resolution beyond physical resolution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional pixel designs with three or four sub-pixels per pixel unit are used, then the manufacturing process is simple, but the visual resolution is limited to be equal to the physical resolution

Engineering Contradiction:
Improvevisual resolutionVSAvoidmanufacturing process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The pixel array is divided into multiple pixel units, each containing three sub-pixels of different colors (R, G, B). By segmenting the display into these smaller functional units with specific triangular arrangements, the patent achieves higher visual resolution through optimized sub-pixel positioning and brightness sharing, while maintaining a manufacturing process that does not significantly increase in complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Adjacent sub-pixels of the same color are merged in terms of brightness contribution. The patent implements brightness sharing where multiple sub-pixels contribute to the perceived brightness of a display pixel, effectively combining their luminous output to achieve higher visual resolution without requiring more physical sub-pixels per pixel unit

Inventive Principle:
Principle #5Merging (Combining)

2Manufacturing precision

If higher visual resolution is achieved through traditional means, then the display quality improves, but the manufacturing process complexity increases

Engineering Contradiction:
Improvevisual resolutionVSAvoidmanufacturing process simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent applies local quality optimization by arranging sub-pixels in specific triangular formations within each pixel unit, where the center points of the three sub-pixels form equilateral triangles. This localized geometric optimization enables higher visual resolution in critical display areas without requiring complex manufacturing processes across the entire panel

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent transitions from traditional linear or grid-based sub-pixel arrangements to a triangular geometric arrangement in the spatial dimension. By positioning sub-pixel center points at vertices of equilateral triangles and utilizing brightness sharing across adjacent triangles, the patent achieves higher visual resolution through dimensional optimization rather than simply increasing pixel density

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP3166098B1Pixel array and driving method thereof and display panel
Publication Date: 2020.09.23 BOE TECHNOLOGY GROUP CO LTD
  • EP3166098B1 patent drawingFigure 1~2
  • EP3166098B1 patent drawingFigure 3~4
  • EP3166098B1 patent drawingFigure 5~6

AI summary

A pixel array, comprising multiple pixel units; each pixel unit comprises three sub-pixels in different colors, the three sub-pixels being a red sub-pixel (R), a green sub-pixel (G) and a blue sub-pixel (B) respectively; the connecting lines between central points of the three sub-pixels form a triangle, and each sub-pixel is a cruciform consisting of a rectangle with an aspect ratio of 3:1 in the transverse direction and the longitudinal direction respectively, and having equal lengths in the transverse direction and the longitudinal direction. Also provided are a method of driving the pixel array and a display panel comprising the pixel array. Driving the pixel array with the driving method enables the display panel to have higher visual resolution.