Display Panel Auxiliary Film Structure for Flat Bonding Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display panels face issues with reliability and display effect due to uneven surfaces caused by through holes and metal connection electrodes, leading to increased reflectivity and potential light leakage.
Innovation Solution
A display panel design featuring a first film layer with openings and an auxiliary film layer that includes thickened, thinned, or hollow parts to provide a flat surface for electrode alignment, reducing reflectivity and improving bonding stability between the light-emitting elements and the drive substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light-emitting element is directly bonded to the drive substrate without auxiliary film layer, then the fabrication process is simpler, but the bonding reliability and alignment precision are reduced
Solution Approach 1:
The patent introduces an auxiliary film layer as an intermediary between the drive substrate and the light-emitting element. This auxiliary film layer includes a thickened part that protrudes toward the light-emitting element, serving as a mechanical support and alignment reference. The intermediary structure enhances bonding reliability and alignment precision without significantly complicating the overall device architecture.
2Manufacturing precision
If the surface of the drive substrate is made uneven to improve alignment, then the alignment precision is improved, but the surface uniformity and display quality are worsened
Solution Approach 1:
The patent applies local quality by creating a thickened part in the auxiliary film layer at a specific location corresponding to the bonding area. This localized thickening provides the necessary alignment precision and mechanical support only where needed, while the rest of the surface remains uniform. The thickened part acts as a localized feature that does not compromise overall surface uniformity.
3Reliability
If the auxiliary film layer is made thicker to improve bonding stability, then the bonding stability is improved, but the reflectivity increases
Solution Approach 1:
The auxiliary film layer is designed with local quality through the thickened part that is strategically positioned only at the bonding area. The thickening is localized rather than uniform across the entire layer, providing bonding stability where needed while minimizing the overall volume of material that could cause reflectivity issues. The rest of the auxiliary film layer maintains a thinner profile.
Data Source
AI summary
A display panel, a fabrication method of the display panel, and a display apparatus are provided in the present disclosure. The display panel includes a substrate; a drive substrate on the substrate, where the drive substrate includes a first film layer; and the first film layer includes a first opening; and a light-emitting element on the drive substrate, where the light-emitting element is disposed corresponding to the first opening. The drive substrate further includes an auxiliary film layer; and the auxiliary film layer includes a thickened part, a thinned part, or a hollow part overlapped with the first opening.