Oxidation-Resistant Liquid Crystal Display Design
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Summary
Problems
Liquid crystal displays face challenges with limited viewing angles, high electron mobility requirements, and oxidation issues with low-resistance metal conductors, particularly in thin film transistors, which affect performance and manufacturing efficiency.
Innovation solutions
A liquid crystal display design incorporating an oxide semiconductor with a transparent insulating layer of indium oxide, a protecting layer covering data lines and electrodes to prevent oxidation, and a passivation layer to enhance channel length and transistor performance.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a data conductor is formed of a metal with low resistance to increase current transfer speed, then the current transfer speed is improved, but the data conductor may be oxidized by an insulating layer formed over the data conductor
Why choose this principle:
A protecting layer is introduced as an intermediary between the low-resistance metal data conductor and the insulating layer. This protecting layer prevents direct contact between the metal and oxidizing environment, while still allowing the data conductor to function. The protecting layer acts as a barrier that mediates the interaction between the metal and insulating layer, preventing oxidation without compromising electrical performance.
Principle concept:
If a data conductor is formed of a metal with low resistance to increase current transfer speed, then the current transfer speed is improved, but the data conductor may be oxidized by an insulating layer formed over the data conductor
Why choose this principle:
The data conductor structure is formed as a composite multi-layer structure consisting of a low-resistance metal layer combined with a protecting layer. This composite structure combines the high electrical conductivity of the metal with the oxidation resistance of the protecting layer, achieving both fast current transfer and protection against oxidation.
Application Domain
Data Source
AI summary:
A liquid crystal display design incorporating an oxide semiconductor with a transparent insulating layer of indium oxide, a protecting layer covering data lines and electrodes to prevent oxidation, and a passivation layer to enhance channel length and transistor performance.
Abstract
A liquid crystal display includes: a substrate; a gate line and a data line disposed on the substrate; a semiconductor layer disposed on the substrate; first and second field generating electrodes disposed on the substrate; and a first protecting layer formed from the same layer as the first field generating electrode and covering at least a portion of the data line.