Pixel Arrangement Structure for High-Resolution Display Devices

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Solution Overview

Problem

The increasing demand for high-resolution display devices requires a large number of sub-pixels, leading to increased manufacturing difficulty and cost due to the refinement of process technology.

Innovation Solution

A pixel arrangement structure where a first sub-pixel is surrounded by second and third sub-pixels forming a virtual rhombus, reducing the number of sub-pixels needed by sharing sub-pixels across multiple pixels, with specific angle and area ratios optimizing the arrangement for improved resolution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the resolution of the display device is increased by reducing pixel size and pitch between pixels, then the resolution is improved, but the process difficulty and manufacturing cost are increased

Engineering Contradiction:
ImproveresolutionVSAvoidprocess difficulty
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The invention segments the traditional pixel structure by dividing each pixel into multiple sub-pixels (e.g., red, green, blue sub-pixels) arranged in specific geometric patterns. This segmentation allows for increased resolution through more sub-pixels without proportionally increasing manufacturing complexity, as the segmented structure can be fabricated using standard multi-layer deposition processes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a linear or simple grid arrangement to a two-dimensional geometric pattern (such as triangular or hexagonal lattices) for sub-pixel arrangement. This dimensional optimization increases the effective number of sub-pixels within the same area, improving resolution without requiring smaller pitch and thereby avoiding increased process difficulty.

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

2Measurement precision

If the resolution of the display device is increased by reducing pixel size and pitch between pixels, then the resolution is improved, but the manufacturing cost is increased

Engineering Contradiction:
ImproveresolutionVSAvoidmanufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The invention designs a universal sub-pixel arrangement pattern (such as the triangular lattice with central and surrounding sub-pixels) that can be applied across the entire display panel. This universal pattern allows standardization of the manufacturing process, enabling mass production at lower costs while achieving high resolution through the efficient use of sub-pixels.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If the number of sub-pixels is increased to achieve high resolution display, then the resolution is improved, but the number of sub-pixels required is large

Engineering Contradiction:
ImproveresolutionVSAvoidnumber of sub-pixels
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The invention merges adjacent sub-pixels of the same color from different pixels into shared structures. For example, a red sub-pixel at the boundary of two pixels serves both pixels simultaneously. This merging reduces the total number of sub-pixels required while maintaining the resolution, as each sub-pixel contributes to multiple pixels' color output.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention recovers space and resources by eliminating redundant sub-pixels through the sharing mechanism. Instead of providing dedicated sub-pixels for every pixel location, the design recovers the ability to use the same sub-pixel for multiple pixels, thereby reducing the total quantity of sub-pixels needed while preserving display quality.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentUS9960210B2Structure of pixel arrangement and display device
Publication Date: 2018.05.01 BOE TECHNOLOGY GROUP CO LTD
  • US9960210B2 patent drawing
  • US9960210B2 patent drawing
  • US9960210B2 patent drawing

AI summary

The present invention discloses a structure of pixel arrangement and a display device. The structure of pixel arrangement includes a first sub-pixel, and second sub-pixels and third sub-pixels that are provided surrounding the first sub-pixel, the first sub-pixel, portions of the second sub-pixels and portions of the third sub-pixels constituting a virtual rhombus, wherein a center of the first sub-pixel coincides with a center of the virtual rhombus; a center of the second sub-pixel coincides with a first vertex of the virtual rhombus; and a center of the third sub-pixel coincides with a second vertex of the virtual rhombus. Compared with the prior art, the number of sub-pixels required to achieve high resolution display in the present invention is smaller, so that the number of the sub-pixels is decreased.