Arc-Section Pixel Structures for Display Panel Serration Reduction

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Solution Overview

Problem

Conventional liquid crystal display panels with rectangular pixel designs suffer from image serration, leading to poor display quality that fails to meet customer requirements for smoothness and image clarity.

Innovation Solution

The design incorporates a display panel with pixel structures featuring arc sections, subpixels arranged in a specific externally-tangent configuration of round or elliptical unit pixels, and a mask with light-transmissive holes to optimize pixel shape, reducing serration and enhancing image smoothness while maintaining cost-effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If rectangular pixel design is used, then manufacturing is simple and cost-effective, but image serration occurs and display quality deteriorates

Engineering Contradiction:
Improvepixel structure manufacturing simplicityVSAvoidimage smoothness
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent applies curvature by designing pixel edges with arc sections instead of sharp rectangular corners. Specifically, the pixel structure includes rounded corners with a predetermined radius, which eliminates the serration effect caused by sharp angles while maintaining manufacturing feasibility through standard photolithography processes. This curved design improves image smoothness without significantly complicating the manufacturing process.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Manufacturing precision

If arc sections are added to pixel edges, then image smoothness improves, but manufacturing complexity increases

Engineering Contradiction:
Improveimage smoothnessVSAvoidpixel structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent controls the complexity increase by carefully selecting and optimizing the arc radius parameter. The arc section has a predetermined radius that is optimized to eliminate serration while remaining compatible with existing manufacturing capabilities. By adjusting this single geometric parameter, the patent achieves improved image smoothness without requiring fundamental changes to the manufacturing process or device architecture.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10534214B2Display panel and mask for manufacturing process of display panel
Publication Date: 2020.01.14 HKC CORP LTD
  • US10534214B2 patent drawing
  • US10534214B2 patent drawing
  • US10534214B2 patent drawing

AI summary

A display panel and a mask for a manufacturing process of a display panel are provided. The display panel includes scan lines and data lines; the numerous data lines and the numerous scan lines are disposed to be intersected to form multiple pixel regions; each of the pixel regions is disposed with a pixel structure correspondingly. The pixel structure includes a pixel. Edges of the pixel at least include an arc section.