Auxiliary Pixel Electrode Light Transmittance
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Solution Overview
Problem
The light transmittance of existing display apparatuses is not high in certain areas, limiting their versatility and application scope.
Innovation Solution
A display panel design that includes a substrate with a main display area, a component area, and a non-display area, featuring a multilayer main pixel electrode, a thin film transistor, an auxiliary pixel electrode with specific layer structures, and electrode connection wiring made of the same material, optimized for increased light transmittance in the component area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional display panel design is used, then manufacturing process is simple, but light transmittance in component area is low
Solution Approach 1:
The display panel is divided into distinct functional areas: main display area, component area, and non-display area. Each area has specifically designed electrode structures tailored to its functional requirements, allowing the component area to be optimized for light transmittance while the main display area maintains standard electrode configurations.
Solution Approach 2:
The electrode structure is customized for different regions of the display panel. The component area features a simplified electrode design with reduced layer thickness and optimized material composition specifically tailored to maximize light transmittance, while other areas maintain their standard electrode structures.
2Illumination intensity
If electrode structure is simplified to increase light transmittance, then light transmittance improves, but electrical connection reliability may deteriorate
Solution Approach 1:
The electrode connection is extended into the third dimension by forming protrusions that extend downward from the component area electrode. This vertical extension provides multiple contact points and increased contact area, ensuring reliable electrical connection despite the overall simplified and thinner electrode structure in the component area.
Solution Approach 2:
The protrusion structure acts as an intermediary element between the simplified component area electrode and the underlying conductive layers. It provides a robust connection interface that bridges the simplified upper electrode structure with the more substantial lower conductive structures.
Data Source
AI summary
A display panel includes: a substrate including a main display area, a component area, and a non-display area; a main pixel electrode in the main display area of the substrate and including a multilayer; a main thin film transistor in the main display area of the substrate and electrically connected to the main pixel electrode; an auxiliary pixel electrode in the component area of the substrate and including a multilayer; an auxiliary thin film transistor in the non-display area of the substrate; and a connection wiring electrically connecting the auxiliary thin film transistor to the auxiliary pixel electrode and having a same structure as the auxiliary pixel.