Display Panel Electrode Opening Structure for Impurity Blocking
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Solution Overview
Problem
Existing display technologies face challenges in providing highly convenient and reliable display panels, devices, and systems due to issues such as impurity diffusion and inefficient light transmission, which affect the performance and reliability of display elements.
Innovation Solution
The display panel design includes a structure with a display region, functional layer, first insulating film, and first conductive film, featuring specific opening portions and overlapping connections that allow for electrical connectivity and impurity inhibition, while utilizing light-transmitting materials to enhance convenience and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display panel uses a conventional structure without specific opening portions and overlapping connections, then the manufacturing process is simpler, but impurity diffusion occurs and electrical connectivity is insufficient
Solution Approach 1:
The display panel structure is segmented into multiple functional layers (functional layer, first insulating film, first conductive film) with specific opening portions. This segmentation allows for controlled electrical connectivity through the opening portions while maintaining manufacturing feasibility through modular layer assembly.
Solution Approach 2:
The first conductive film is positioned to overlap with the auxiliary wiring in a specific local region defined by the opening portions. This local overlapping connection provides enhanced electrical connectivity precisely where needed (at the auxiliary electrode region) without requiring complex structures throughout the entire display panel.
2Illumination intensity
If the display panel uses conventional materials and structure, then the manufacturing cost is lower, but light transmission efficiency is insufficient
Solution Approach 1:
The first insulating film is designed with specific opening portions that create local variations in optical properties. The overlapping connection structure allows light to pass through the functional layer, first insulating film, and first conductive film in a controlled manner, enhancing light transmission efficiency at the auxiliary electrode region without requiring complex manufacturing processes across the entire panel.
3Reliability
If the display panel lacks specific opening portions and overlapping connections, then the manufacturing process is simpler, but impurity diffusion into the display element occurs
Solution Approach 1:
The display panel is segmented into distinct layers (functional layer, first insulating film, first conductive film) with opening portions that create physical barriers. This segmentation prevents impurity diffusion into the display element by confining potential contaminants to specific regions outside the display element, while maintaining manufacturing feasibility through standard layer deposition techniques.
Solution Approach 2:
The first insulating film acts as an intermediary layer between the functional layer and the first conductive film. This intermediary structure with opening portions provides both electrical connectivity pathways and physical barriers against impurity diffusion, protecting the display element without requiring complex manufacturing processes.
Data Source
AI summary
A display panel is provided. The display panel includes a display region, a functional layer, a first insulating film, and a first conductive film; the display region includes a pixel; the pixel includes a display element and a pixel circuit; the display element includes a first electrode and a second electrode; the second electrode includes a first opening portion; the functional layer includes the pixel circuit, a second opening portion, and an auxiliary wiring; the pixel circuit is electrically connected to the display element in the second opening portion; the auxiliary wiring includes a region overlapping with the first opening portion; the first insulating film includes a third opening portion; the third opening portion includes a region overlapping with the first opening portion; and the first conductive film is electrically connected to the second electrode and the auxiliary wiring in the third opening portion.