Display Panel Sub-Pixel Segmentation for Irregular Boundary Rendering

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Solution Overview

Problem

Special-shaped display panels in prior art technologies experience issues with zigzag patterns, unsmooth edges, and severe color cast near their boundaries due to mismatched pixel units and irregular shapes, leading to poor display effects.

Innovation Solution

The display panel is designed with a normal display region and a special-shaped display region, where the special-shaped region is divided into sub-pixel groups with multiple sub-pixels along specific directions, increasing pixel density and aligning scan lines to match the irregular boundary, such as a circular arc, without altering the overall pixel area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If pixel units are arranged in a regular grid pattern, then manufacturing is simple and pixel area is large, but the display region cannot match special-shaped boundaries causing zigzag patterns and unsmooth edges

Engineering Contradiction:
Improveboundary display qualityVSAvoidpixel arrangement complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The display panel is divided into a normal display region with regular pixel groups and a special-shaped display region with pixel units that are further segmented into sub-pixels. This segmentation allows the special-shaped region to have higher resolution and better boundary matching without affecting the simplicity of the normal region.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the display panel have different pixel structures. The normal display region uses standard pixel groups while the special-shaped display region uses pixel units divided into sub-pixels. This local differentiation optimizes display quality at the special-shaped boundary while maintaining overall manufacturing efficiency.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If the display region is changed to match special-shaped boundaries, then display effects are improved, but pixel units cannot completely coincide with the boundary causing color cast

Engineering Contradiction:
Improveboundary alignment precisionVSAvoidpixel unit configuration
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

Pixel units in the special-shaped display region are divided into multiple sub-pixels arranged in multiple rows. This dimensional expansion from single-row to multi-row sub-pixel arrangement enables finer boundary alignment and better color rendering at irregular boundaries.

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

Solution Approach 2:

The scan line configuration is made adaptive to the special-shaped boundary. Multiple scan lines are used in the special-shaped display region, with the number of scan lines varying according to the boundary shape, allowing dynamic adjustment of pixel density and alignment at different locations.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If multiple scan lines are used in the special-shaped display region, then pixel density increases and boundary display quality improves, but device complexity increases

Engineering Contradiction:
Improvepixel densityVSAvoidscan line configuration
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The display panel is segmented into normal and special-shaped regions with different scan line configurations. The special-shaped region uses multiple scan lines to achieve higher pixel density, while the normal region maintains a simpler single-scan-line-per-pixel-group configuration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The scan line structure is designed to serve multiple functions: it provides both scanning and data transmission functions. The first scan lines connect pixel groups in the normal region, while second scan lines connect sub-pixels in the special-shaped region, creating a universal scanning architecture that handles both regions efficiently.

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

Data Source

PatentUS11030932B1Display panel and display device
Publication Date: 2021.06.08 SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
  • US11030932B1 patent drawing
  • US11030932B1 patent drawing

AI summary

The present disclosure provides a display panel and a display device. The display panel includes a normal display region and a special-shaped display region. A plurality of second pixel groups and second scan lines are sequentially disposed in the special-shaped display region. Each of the plurality of second pixel groups includes a plurality of rows of sub-pixels disposed along a first direction. The sub-pixels in each row are connected to the second scan lines in a corresponding row. The first scan lines are connected to the second scan lines to reduce a size of sub-pixels in each of the plurality of second pixel groups, increase a pixel density, and increase a display quality.