Micro-LED Display Common Line Integration via Conductive Element
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Solution Overview
Problem
The challenge in the display technology industry is to effectively reduce electrical impedance in light emitting diode (LED) displays to enhance their performance, particularly in micro-LED displays, which affects their luminance, contrast, and power consumption.
Innovation Solution
A display device design that includes a substrate with a driving component and a common line, where a conductive element extends from the common line to connect with the light emitting component's electrode, eliminating the need for an additional substrate and simplifying the manufacturing process by integrating the common line and driving component on the same substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate substrate is used for the common line and driving component, then electrical connection is achieved, but device complexity and manufacturing time increase
Solution Approach 1:
The patent combines the common line and driving component onto the same first substrate, eliminating the need for a separate second substrate. This integration reduces device complexity and manufacturing steps while maintaining reliable electrical connections through the conductive element that directly bridges the light emitting component to the common line on the unified substrate structure.
2Reliability
If electrical impedance is reduced, then display performance improves, but manufacturing precision requirements increase
Solution Approach 1:
The conductive element is strategically positioned and configured to specifically address high-impedance regions in the electrical path. By optimizing the local electrical properties through the conductive element's geometry and material characteristics, the patent reduces impedance at critical connection points without requiring extreme manufacturing precision across the entire device structure.
3Productivity
If manufacturing process is simplified, then productivity increases, but manufacturing precision may decrease
Solution Approach 1:
By integrating the common line and driving component on a single substrate, the patent reduces the number of substrates that need to be aligned and bonded. This simplification of the manufacturing process eliminates complex multi-substrate alignment steps, thereby improving productivity while actually reducing the precision requirements compared to multi-substrate approaches.
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
This design reduces manufacturing time and cost while improving display quality by minimizing impedance and reducing the influence of high impedance on electrical connections, leading to better luminance and contrast in micro-LED displays.
Implementation Method 1
The common line is electrically connected to the second electrode through the conductive element
Data Source
AI summary
The disclosure relates to a display device, including a first substrate, a light emitting component, an insulating layer, and a conductive element. The first substrate has a driving component and a common line. The light emitting component is disposed on the first substrate and has a first electrode and a second electrode. The first electrode is electrically connected to the driving component. The insulating layer is disposed to the first substrate and has a first opening and a second opening. The first opening exposes the second electrode of the light emitting component. The second opening exposes the common line. The common line is electrically connected to the second electrode through the conductive element.