Shield Layer Layout for Silicon-Oxide TFT Display Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display technologies face challenges in reducing power consumption while maintaining improved display quality, especially in diverse and versatile applications of display apparatuses driven by silicon-based and oxide-based thin-film transistors.
Innovation Solution
A display panel design incorporating a substrate with a silicon-based TFT and an oxide-based TFT, featuring a shield layer with a metal material, inorganic layers, and voltage supply lines, which reduces power consumption and enhances display quality by stabilizing transistor characteristics and minimizing external light interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a shield layer is added to block external light interference, then display quality is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The shield layer is integrated within the existing multi-layer structure of the display panel, nesting the shielding function within the substrate, inorganic layers, and other existing layers rather than adding a separate external component. This reduces overall device complexity while maintaining shielding effectiveness.
Solution Approach 2:
The shield layer utilizes metal materials with specific electromagnetic shielding properties, creating a composite structure that combines the shielding function with the display panel's existing layers. This composite approach improves display quality by blocking external light interference while managing the complexity through material selection rather than structural addition.
2Reliability
If voltage lines and shield layers are added to stabilize transistor characteristics, then reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The shield layer and voltage lines are positioned at specific locations within the display panel structure, providing localized electromagnetic shielding and voltage stabilization exactly where the silicon-based TFTs are located. This targeted approach improves transistor characteristics stability without requiring high manufacturing precision across the entire panel, only in the specific regions where these components are integrated.
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 solution achieves reduced power consumption and improved display quality by stabilizing transistor characteristics and minimizing external light interference, enabling high-resolution displays with low power usage.
Implementation Method 1
a shield layer arranged between the substrate and the first semiconductor layer, and including a pattern and a connection line, the pattern overlapping the first semiconductor layer
Data Source
AI summary
A display panel includes a first thin-film transistor (“TFT”) arranged in a display area of a substrate and including a first semiconductor layer including a silicon semiconductor, a second TFT connected to the first TFT and including a second semiconductor layer including an oxide semiconductor, a voltage line connected to the first TFT, and a shield layer arranged between the substrate and the first semiconductor layer, and including a pattern and a connection line, the pattern overlapping the first semiconductor layer, the connection line extending from the pattern, and a voltage that is a same as a voltage applied to the voltage line being applied to the shield layer.