Nano Crystal Display Gate Driver Shielding
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Solution Overview
Problem
Nano crystal displays face challenges in protecting control signal lines and gate drivers from static electricity and moisture, which can lead to damage and affect their performance during manufacturing and operation.
Innovation Solution
The implementation of a nano crystal display design that includes a sub-electrode extending in a column direction to cover the gate driver and control signal line part, along with a cover layer and roof layer, which are strategically positioned to protect these components from static electricity and moisture, ensuring effective shielding and prevention of damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control signal lines and gate drivers are exposed in the non-display area, then manufacturing and operation are simpler, but they are vulnerable to static electricity and moisture damage
Solution Approach 1:
The patent implements a multi-layer nested protective structure where the cover layer is positioned within the non-display area, the sub-electrode extends to cover the control signal lines and gate drivers, and the roof layer is disposed on the sub-electrode. This nested arrangement provides comprehensive protection against static electricity and moisture while maintaining a compact overall structure.
Solution Approach 2:
The patent extends protection from a two-dimensional plane to a three-dimensional structure by having the sub-electrode extend in the column direction (vertical dimension) to cover the control signal lines and gate drivers, and positioning the cover layer and roof layer at different vertical levels. This dimensional extension creates effective shielding without significantly increasing the horizontal footprint.
2Reliability
If protective layers are added to shield control signal lines and gate drivers, then reliability improves, but manufacturing complexity increases
Solution Approach 1:
The patent combines multiple protective functions into a single integrated structure. The sub-electrode serves both as an electrical component and as a protective element that extends to cover the control signal lines and gate drivers. The cover layer and roof layer are integrated into the existing display structure, providing protection without requiring separate manufacturing processes.
3Reliability
If the sub-electrode extends to cover the gate driver and control signal line part, then protection effectiveness increases, but the display area is reduced
Solution Approach 1:
The patent applies protection locally rather than uniformly across the entire display. The cover layer is positioned specifically in the non-display area, the sub-electrode extends only to cover the control signal lines and gate drivers in the non-display area, and the roof layer is disposed on the sub-electrode in the non-display area. This localized approach provides effective protection while preserving the maximum display area.
Data Source
AI summary
A nano crystal display includes a display panel including a display area and a non-display area, a data driver which applies data voltages to pixels through data lines, a gate driver disposed in the non-display area and which sequentially applies gate signals to the pixels through gate lines in response to control signals, a control signal line part disposed in the non-display area and which applies the control signals to the gate driver, a cover layer which extends in a column direction and covers the gate driver and the control signal line part, and a sub-electrode which extends in the column direction and covers the cover layer. The pixels display gray scales corresponding to the data voltages provided through the data lines in response to the gate signals.