Display Device Insulating Layer Grooves for Dehydrogenation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The thermal treatment process during dehydrogenation of a semiconductor layer in LED display devices can damage signal lines due to thermal stress, leading to inefficiencies and potential device failure.
Innovation Solution
A display device structure is designed with a substrate, switching elements, a semiconductor layer, and insulating layers, where the insulating layers are defined with grooves and dummy holes to protect the signal lines during dehydrogenation, preventing damage by allowing hydrogen release through these structures rather than directly through the signal lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal treatment process is performed during dehydrogenation of semiconductor layer, then dehydrogenation is achieved, but signal line damage occurs due to thermal stress
Solution Approach 1:
The patent introduces dummy holes that segment the thermal treatment path, allowing heat to be applied selectively through isolated regions rather than uniformly across the entire device. This segmentation enables dehydrogenation to occur in controlled zones while protecting signal lines from direct thermal exposure
Solution Approach 2:
The dummy holes act as intermediaries that mediate between the thermal treatment requirement and signal line protection. By providing dedicated pathways for hydrogen release, the dummy holes serve as sacrificial structures that absorb thermal stress away from the signal lines, enabling dehydrogenation without damaging the functional conductive layers
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 approach enables effective dehydrogenation of the semiconductor layer while minimizing damage to signal lines, ensuring the integrity and performance of the display device.
Implementation Method 1
due to a thermal treatment process during the dehydrogenation, a signal line may be damaged
Implementation Method 2
dehydrogenation of a semiconductor layer is performed
Data Source
AI summary
A display device is capable of preventing damage to a signal line in a dehydrogenation process of a semiconductor layer and to a method of manufacturing the display device, the display device including: a substrate; at least one switching element on the substrate; a pixel electrode connected to the at least one switching element; a semiconductor layer on the substrate, the semiconductor layer providing a channel area of the at least one switching element; an insulating layer on the semiconductor layer; and a conductive layer connected to the semiconductor layer through a contact hole of the insulating layer. The insulating layer has a groove that overlaps the semiconductor layer and surrounds the conductive layer in the contact hole.