Display Device Segmented Metal Layer for Wiring Reflection Control
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Solution Overview
Problem
Existing display devices face challenges in integrating additional functions due to the increasing display area, particularly in preventing external light reflection from wiring visible outside the display area.
Innovation Solution
Incorporating a metal layer with spaced segments along the outer edge of the display area to block external light reflection, combined with an input sensing layer featuring sensing electrodes arranged in different directions, and signal wiring interposed between the metal layer and the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display area is increased to add functions, then the functionality of the display device is improved, but external light reflection from wiring becomes more visible
Solution Approach 1:
The metal layer is divided into multiple segments spaced apart from each other, where each segment blocks light reflection from specific wiring portions. This segmentation allows the metal layer to be positioned in the opening area while maintaining display functionality and reducing harmful light reflections.
Solution Approach 2:
The metal layer acts as an intermediary element positioned between the wiring and the external environment. By placing the metal layer in the opening area, it mediates the light path to block reflections from wiring while allowing the display to maintain its functional expansion.
2Object-affected harmful factors
If a metal layer is added to block light reflection, then the harmful light reflection is reduced, but the device complexity increases
Solution Approach 1:
The metal layer is merged with the opening area structure, combining the light-blocking function with the existing display device architecture. This integration minimizes additional complexity by utilizing the opening area that is already part of the display structure.
Solution Approach 2:
The metal layer serves multiple functions: it blocks light reflection from wiring, defines the opening area geometry, and can be integrated with sensing electrodes. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
3Area of stationary object
If the metal layer is positioned in the opening area, then the display area is maximized, but wiring visibility increases
Solution Approach 1:
The metal layer is segmented into multiple portions spaced apart, allowing it to be positioned in the opening area without creating a continuous barrier. This segmentation enables the metal layer to block light from specific wiring portions while maintaining the overall display area and allowing light to pass through other regions.
Solution Approach 2:
The metal layer is positioned locally in the opening area rather than uniformly across the entire display. This local positioning allows the metal layer to address specific light reflection problems in the opening area while preserving the display area and optical characteristics of the rest of the display.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively reduces visible light reflection from internal wiring, enhancing the display device's functionality and aesthetic appeal by integrating additional components like sensors or cameras without compromising image quality.
Implementation Method 1
The metal layer may include a metal having a light-blocking characteristic
Data Source
AI summary
A display device includes a substrate including an opening defined therein, a display area adjacent to the opening, and a non-display area extended along the opening to be disposed between the opening and the display area; a display element with which an image is displayed, on the substrate in the display area thereof; and a metal layer including a plurality of segments spaced apart from each other, each segment disposed in the non-display area of the substrate.