Through-Hole Display Pixel Layout With Curved Data Lines

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Solution Overview

Problem

Existing display devices face challenges in reducing the area of non-display regions, particularly around through portions, while maintaining effective sealing performance.

Innovation Solution

A display device design that includes a substrate with a through portion, a pixel array surrounding the through portion, and data lines that are curved along the perimeter of the through portion, reducing the overlap between data lines and improving sealing with a thin film encapsulation layer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If data lines are arranged in straight lines, then manufacturing is simple, but non-display area is large

Engineering Contradiction:
Improvenon-display areaVSAvoiddata line arrangement
Core Design Contradiction:
Area of stationary objectVSEase of manufacture

Solution Approach 1:

The data lines are designed to curve along the perimeter of the through portion rather than extending in straight lines. This curvature allows the data lines to follow the contour of the through portion, minimizing the occupied area in the non-display region while maintaining electrical connection to pixels on both sides of the through portion.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Adaptability or versatility

If through portion is present, then device functionality is enhanced, but sealing performance deteriorates

Engineering Contradiction:
Improvedevice functionalityVSAvoidsealing performance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The thin film encapsulation layer is formed to extend over the curved data lines and seal the through portion, creating a nested structure where the encapsulation layer surrounds and protects the data lines and through portion. This nested configuration maintains sealing performance despite the presence of the through portion for enhanced device functionality.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS12274133B2Display device having a through portion
Publication Date: 2025.04.08 SAMSUNG DISPLAY CO LTD
  • US12274133B2 patent drawing
  • US12274133B2 patent drawing
  • US12274133B2 patent drawing

AI summary

A display device includes a substrate including a first surface, and a second surface opposite the first surface, and defining a through portion passing therethrough, a pixel array including a plurality of pixels surrounding the through portion at the first surface, a plurality of scan lines extending along a first direction for providing scan signals to the pixels, and a plurality of data lines extending along a second direction crossing the first direction for providing data signals to the pixels, the plurality of data lines including first and second data lines adjacent the through portion at different layers, and having at least a portion thereof curved along a perimeter of the through portion.