Active Matrix Substrate Static Protection Narrow Frame Region
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Solution Overview
Problem
Existing active matrix substrates face challenges in protecting against static electricity, which complicates the reduction of the frame region width around the display area, as protection circuits are typically arranged outside the display region.
Innovation Solution
Incorporating a protection part with first and second protection circuits and a conductive unit within the display region, allowing the active matrix substrate to be protected from static electricity while narrowing the frame region by connecting protection circuits to the first and second lines, thereby suppressing discharge and equalizing potentials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If switching elements are arranged outside the display region to protect from static electricity, then the active element is protected from static electricity, but the frame region width cannot be decreased
Solution Approach 1:
The protection circuit is moved from the frame region (outside display region) into the display region itself, utilizing the vertical space between signal lines and the ground line. This dimensional repositioning allows the protection function to be integrated within the existing display area structure, eliminating the need for additional frame region width while maintaining static electricity protection capability.
2Area of stationary object
If the frame region is narrowed, then the display area proportion increases, but the active element cannot be adequately protected from static electricity
Solution Approach 1:
The protection circuit is merged with the existing signal line structure by placing it between the signal line and the ground line within the display region. This integration allows the protection function to be combined with the existing wiring layout, enabling static electricity protection without requiring additional space that would reduce the display area proportion.
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 protects the active matrix substrate from static electricity, allowing for a narrower frame region and improved operational stability by suppressing discharge and equalizing potentials within the display region.
Implementation Method 1
Each of the first protection circuits, according to a potential of the first line to which the first protection circuit is connected, allows the first line and the conductive unit to be conductive with each other
Implementation Method 2
The conductive unit is connected to each of the first protection circuits in the display region
Data Source
AI summary
Provided is an active matrix substrate that can protected from static electricity, with the frame region being narrowed. An active matrix substrate (20a) includes a plurality of first lines (GL), a plurality of second lines (SL), and a protection part (50). The first lines are formed in a display region (30). The second lines are formed in the display region, and intersect with the first lines. The protection part protects the active matrix substrate from static electricity. The protection part includes a plurality of first protection circuits (50A), and a conductive unit (50B). The first protection circuits are connected to each of the first lines in the display region. The conductive unit is connected to each of the first protection circuits in the display region. Each of the first protection circuits, according to a potential of the first line to which the first protection circuit is connected, allows the first line and the conductive unit to be conductive with each other.