Display Device Connection Electrode Spacing and Light Emission
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Solution Overview
Problem
Current display devices face challenges in improving light emission efficiency and simplifying the manufacturing process, particularly in the design and arrangement of light emitting elements and connection electrodes.
Innovation Solution
A display device design that includes electrodes spaced apart with light emitting elements in between, featuring connection electrodes with distinct areas for electrical contact and extension, and a method of manufacturing that forms these electrodes and light emitting elements on a substrate, allowing for a capping layer, color conversion layer, and color filter layer to enhance light emission efficiency and simplify the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If connection electrodes are designed with both contact areas and extending areas in the same layer, then the manufacturing process is simplified and fewer masks are required, but the structural complexity of the electrode arrangement increases
Solution Approach 1:
The patent merges the contact area and extending area of connection electrodes into the same layer, eliminating the need for separate layers and reducing the number of masks required during manufacturing. This integration simplifies the manufacturing process while the electrodes maintain their dual-function structure through careful spatial design.
Solution Approach 2:
The connection electrodes serve multiple functions simultaneously: they provide electrical contact with light emitting elements through contact areas, extend connections to other components through extending areas, and maintain structural organization. This multi-functionality is achieved within a single layer, balancing manufacturing simplicity with functional complexity.
2Use of energy by moving object
If space is formed between light emitting elements and connection electrodes, then light emission efficiency is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates spacing structures between light emitting elements and connection electrodes during the initial manufacturing process. By pre-forming these spaces rather than adding them later, the design improves light emission efficiency while managing precision requirements through integrated process design.
Solution Approach 2:
The space between light emitting elements and connection electrodes acts as an intermediary structure that optimizes light extraction and emission. This spatial arrangement serves as a mediator that balances optical performance improvement with manufacturing feasibility by being incorporated into the overall electrode design.
Data Source
AI summary
A display device includes electrodes spaced apart from each other, light emitting elements disposed between the electrodes, and connection electrodes electrically connected to the light emitting elements. The connection electrodes include first areas in electrical contact with the light emitting elements and second areas extending upwardly from the light emitting elements. A space is formed between the light emitting elements and the second areas of the connection electrodes.