Display Device Resin Layer Shock Resistance
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Solution Overview
Problem
Modern display devices face challenges in integrating additional functions and enhancing durability due to their thin and lightweight designs, which can lead to increased susceptibility to damage from external shocks and manufacturing defects.
Innovation Solution
A display device design incorporating a substrate with a display layer, a thin-film encapsulation layer, an input sensing member, and a resin layer that extends beyond the encapsulation layer, featuring a unique shape for the side surfaces to provide shock resistance and improved manufacturing processes to prevent defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the display device is designed with thin and lightweight structure, then the weight and thickness are reduced, but the resistance to external shocks and durability deteriorate
Solution Approach 1:
The patent employs a composite structure consisting of a substrate, display layer, thin-film encapsulation layer, resin layer, and input sensing member. This multi-layer composite design provides enhanced mechanical strength and shock resistance while maintaining a thin and lightweight overall structure, resolving the contradiction between weight reduction and durability enhancement.
Solution Approach 2:
The patent introduces a convex shape on the side surfaces of the substrate, transitioning from a flat two-dimensional surface to a three-dimensional convex structure. This dimensional change increases the moment of inertia and provides geometric reinforcement against external shocks while maintaining minimal added weight, effectively addressing the shock resistance issue in thin devices.
2Weight of moving object
If the display device is designed with thin and lightweight structure, then the weight and thickness are reduced, but the susceptibility to manufacturing defects increases
Solution Approach 1:
The patent incorporates a resin layer between the thin-film encapsulation layer and the input sensing member before final assembly. This preliminary structural preparation provides a buffer zone that compensates for potential manufacturing variations and reduces the risk of defects in the thin-layer structure, addressing the manufacturing precision challenge.
Solution Approach 2:
The resin layer acts as a cushioning element that预先 (in advance) compensates for potential manufacturing defects in the thin-film encapsulation layer and substrate. This beforehand cushioning provides mechanical tolerance and reduces the impact of manufacturing variations, lowering the defect rate in thin-device production.
3Adaptability or versatility
If additional functions are integrated into the display device, then the functionality and versatility are enhanced, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single unified structure. The substrate serves as both the structural base and the mounting platform for the display layer, encapsulation layer, and input sensing member. This multi-functional integration enhances versatility while avoiding the need for separate components, thereby controlling structural complexity.
Solution Approach 2:
The patent merges the display function and input sensing function into a single integrated structure where the input sensing member is positioned on the same substrate as the display layer. This merging of functions reduces the number of separate components and simplifies the overall device structure while enhancing adaptability.
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
The design enhances shock resistance and manufacturing reliability by creating a durable display device with convex side surfaces that reduce the risk of damage from external shocks and minimizes defects during production.
Implementation Method 1
The resin layer may include an ultraviolet (UV) curable material.
Data Source
AI summary
A display device includes a display panel that includes a substrate, a display layer disposed on the substrate, and a thin-film encapsulation layer that covers the display layer; an input sensing member that includes a base layer and sensing electrodes disposed on the base layer, wherein the base layer faces the substrate of the display panel; and a resin layer disposed between the thin-film encapsulation layer and the base laver. The display device includes an opening area and a display area that at least partially surrounds the opening area. A side surface of the substrate that at least partially surrounds the opening area has a shape in a thickness direction of the substrate that differs from a shape in the thickness direction of a side surface of another part of the substrate.