Digital X-ray Detector Ground Electrode Static Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Digital X-ray detectors face issues with electrostatic defects and frictional static-electricity due to polyimide-based impurities, which affect their performance and reliability, particularly when using polyimide substrates.
Innovation Solution
The implementation of a digital X-ray detector design that includes a base substrate with a metal layer, an element-array, a ground electrode, a scintillator layer, and a reflective plate, where the reflective plate is electrically connected to the ground electrode and metal layer, creating a wide effective ground region to discharge static-electricity efficiently and minimize defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a polyimide substrate is used to enable flexible digital X-ray detector, then adaptability and flexibility are improved, but electrostatic defects and frictional static-electricity increase
Solution Approach 1:
A ground electrode is introduced as an intermediary component between the polyimide substrate and the elements-array. This ground electrode provides a dedicated pathway for static electricity to discharge, mediating the harmful electrostatic effects generated by the polyimide material while preserving its flexible properties.
Solution Approach 2:
The patent converts the harmful frictional static-electricity generated by the polyimide substrate into a manageable electrical phenomenon by providing a ground electrode that channels this static charge to ground. The harmful static electricity is transformed into a controlled discharge path that protects the detector elements.
2Reliability
If ground electrode is electrically connected to both elements-array and metal layer, then static-electricity discharge path is improved, but device complexity increases
Solution Approach 1:
The ground electrode serves multiple functions simultaneously: it acts as a static electricity discharge path, provides electrical shielding, and serves as a reference potential for the elements-array. This multi-functionality reduces the need for separate components for each function.
Solution Approach 2:
The patent merges the ground connection function with the existing metal layer structure. By electrically connecting the ground electrode to the metal layer that is already present on the polyimide substrate, the design combines multiple grounding functions into a unified structure rather than adding separate independent grounding systems.
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 design effectively reduces electrostatic defects and static-electricity-related failures by providing a robust discharge path for static-electricity, enhancing the reliability and performance of the digital X-ray detector, especially when using polyimide substrates.
Implementation Method 1
a static-electricity discharge path along which the static-electricity from the reflective plate moves through the ground electrode to the metal layer may be secured
Implementation Method 2
a scintillator layer disposed on the elements-array
Data Source
AI summary
The present disclosure relates to a digital X-ray detector, which includes a base substrate; a metal layer disposed on a bottom face of the base substrate; an elements-array disposed on a top face of the base substrate; a ground electrode disposed on a top face of the base substrate and electrically connected to the elements-array; a scintillator layer disposed on the elements-array; and a reflective plate disposed on the scintillator layer. Thus, a static-electricity discharge path along which static-electricity from the reflective plate moves through the ground electrode to the metal layer may be secured. This may increase or maximize an effective ground region, such that the static-electricity generated from the top and bottom of the digital X-ray detector can be more efficiently discharged out.