Display Signal Line Identification Without Wider Line Spacing
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Solution Overview
Problem
Existing display devices face challenges in identifying line numbers of gate and data lines without increasing the distance between them, particularly as pixel density increases, making defect detection and repair difficult.
Innovation Solution
The display device incorporates wide portions on signal lines to form identification patterns, such as relief patterns, symbols, or numbers, which are formed on adjacent signal lines without altering the distance between them, allowing for easy identification of line numbers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If line numbers are added to signal lines for identification, then ease of repair is improved, but device complexity increases
Solution Approach 1:
The identification pattern is merged with the signal line structure itself by forming wide portions directly on the signal lines. This integration allows line number identification without adding separate identification components, thereby improving ease of repair while avoiding increased device complexity.
Solution Approach 2:
The identification is achieved by changing the width dimension of the signal lines (creating wide portions) rather than adding length or separate identification elements. This dimensional approach allows compact identification markers that do not increase overall device complexity while maintaining ease of repair.
2Measurement precision
If wide portions are formed on signal lines for identification, then measurement precision is improved, but manufacturing precision requirements increase
Solution Approach 1:
The identification is achieved by changing the width parameter of the signal lines to create wide portions. This parameter change provides clear visual distinction for measurement and identification purposes while the wide portions are formed using standard photolithography processes, avoiding excessive manufacturing precision requirements.
Data Source
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AI summary
A display device is provided. The display device comprises a substrate, pixels disposed on the substrate, and a plurality of signal lines for applying a signal to the pixels, the plurality of signal lines disposed on the substrate, the signal lines being spaced apart from one another and extending parallel to a first direction, and an identification pattern for identifying line numbers of the plurality of signal lines, wherein the identification pattern includes wide portions on one or more of the signal lines.