Display Panel Sub-pixel Arrangement for Uniform Color Distribution

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Solution Overview

Problem

Conventional high-resolution display technologies face issues with poor display effects and complex calculations due to non-uniform distribution of sub-pixels and high calculation requirements in Pentile mode, leading to serrated grains, latticed spots, and unclear displays.

Innovation Solution

A display panel with nine sub-pixels arranged in five columns, including color and compensation sub-pixels, where sub-pixels of the same color are not adjacent, allowing for uniform distribution and reduced calculation complexity, achieving higher resolution and improved display effects through brightness and chromaticity compensation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the number of sub-pixels of part of colors is halved to achieve Pentile mode, then the resolution is improved, but the sub-pixels are not uniformly distributed causing serrated grains and latticed spots

Engineering Contradiction:
ImproveresolutionVSAvoiduniform distribution of sub-pixels
Core Design Contradiction:
Measurement precisionVSStability of the object's composition

Solution Approach 1:

The pixel unit is segmented into multiple sub-pixels with different functions: color sub-pixels (R, G, B) for color display and compensation sub-pixels (X, Y) for brightness and chromaticity compensation. This segmentation allows the color sub-pixels to be sparsely arranged while compensation sub-pixels make up for the non-uniform distribution, resolving the contradiction between reduced sub-pixel count and uniform distribution requirement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different sub-pixels are assigned different local functions: color sub-pixels handle color information while compensation sub-pixels handle brightness and chromaticity compensation. The compensation sub-pixels are strategically positioned to locally compensate for the non-uniform distribution of color sub-pixels, eliminating serrated grains and latticed spots while maintaining high resolution.

Inventive Principle:
Principle #3Local quality

2Device complexity

If the number of sub-pixels is reduced in Pentile mode, then the device complexity is reduced, but the calculation quantity increases due to layer and region divisions

Engineering Contradiction:
Improvesub-pixel configurationVSAvoidcalculation time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The pixel unit is pre-configured with compensation sub-pixels positioned at specific locations. This preliminary arrangement of compensation sub-pixels eliminates the need for complex layer and region division calculations during display operation, as the compensation function is built into the physical structure rather than requiring computational compensation.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If sub-pixels are arranged in conventional patterns, then the manufacturing is simplified, but the display effect deteriorates with serrated grains and latticed spots

Engineering Contradiction:
Improvesub-pixel arrangementVSAvoiddisplay quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The pixel unit employs an asymmetric arrangement where compensation sub-pixels are positioned differently from color sub-pixels. The compensation sub-pixels are located at specific positions (e.g., corners or edges) rather than following a regular grid pattern, which eliminates the symmetric lattice structures that cause latticed spots while remaining compatible with standard manufacturing processes.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS9880412B2Display panel and display method thereof, and display device
Publication Date: 2018.01.30 BOE TECHNOLOGY GROUP CO LTD
  • US9880412B2 patent drawing
  • US9880412B2 patent drawing
  • US9880412B2 patent drawing

AI summary

The present invention provides a display panel and a display method thereof, and a display device. The display panel comprises a plurality of pixel units, each pixel unit is composed of nine sub-pixels arranged in five columns, one center sub-pixel traversing two rows is only provided in the third column of each pixel unit, while the sub-pixels are arranged in two rows in other columns. The nine sub-pixels in each pixel unit include color sub-pixels and compensation sub-pixels, the color sub-pixels include a red sub-pixel, a green sub-pixel and a blue sub-pixel, and the compensation sub-pixels include a brightness compensation sub-pixel and a chromaticity compensation sub-pixel. The center sub-pixel has any one of five kinds of colors, a number of the sub-pixels with each of other four colors is two, and the sub-pixels with the same color are not adjacent to each other.