Display Substrate Hole Structure With Laser Blocking Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display apparatuses face challenges in reducing damage to substrates during manufacturing, particularly when using laser ablation processes, which can affect insulating layers, especially those with organic components.
Innovation Solution
The implementation of a laser blocking layer structure comprising multiple layers with overlapping segments and insulating dams, along with reinforcement layers, to protect the substrate and insulating layers from laser damage during the ablation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If laser ablation process is used for manufacturing, then productivity is improved, but substrate and insulating layer damage occurs
Solution Approach 1:
A laser blocking layer is introduced as an intermediary component between the laser source and the insulating layer. This blocking layer absorbs or reflects the laser energy, preventing direct interaction between the laser and the insulating layer, thereby eliminating laser-induced damage while preserving the productivity benefits of laser ablation
Solution Approach 2:
The laser blocking layer is positioned in advance before the laser ablation process occurs. By pre-placing this protective layer, the system prevents harmful laser effects from reaching the insulating layer before damage can occur, allowing the laser process to proceed at full efficiency
2Reliability
If insulating layer is disposed on substrate, then device functionality is improved, but laser damage to insulating layer increases
Solution Approach 1:
The laser blocking layer serves as a mediator that protects the insulating layer from laser damage. It is positioned between the laser source and the insulating layer, absorbing or reflecting harmful laser energy while allowing the insulating layer to maintain its essential electrical insulation and device functionality
Solution Approach 2:
The laser blocking layer is strategically positioned only in regions where laser damage would affect the insulating layer, allowing the insulating layer to maintain its protective quality in critical areas while preserving overall device functionality
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
This configuration effectively prevents laser-induced damage to the substrate and insulating layers, ensuring the integrity and functionality of the display apparatus during manufacturing.
Implementation Method 1
a laser blocking layer. The laser blocking layer is disposed on the insulating layer in the non-display area
Data Source
AI summary
A display apparatus includes a substrate including at least one hole disposed in a hole area of the substrate, a thin film transistor disposed on the substrate, a light-emitting component disposed on the substrate and electrically connected to the thin film transistor, an insulating layer disposed on the substrate, a thin film encapsulation layer disposed on the substrate, and a laser blocking layer. The substrate includes a display area and a non-display area that is disposed between the display area and the hole area. The laser blocking layer is disposed on the insulating layer in the non-display area.