Gate Line Cross-Connection Wiring for Display Signal Reliability
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Solution Overview
Problem
Conventional liquid crystal display devices experience display failures due to breaks in gate lines, resulting in dark lines and incomplete signal supply to pixel electrodes.
Innovation Solution
The display device incorporates cross connection wirings that connect adjacent gate lines, allowing for the distribution of gate signals even if a break occurs in one of the gate lines, thereby ensuring continuous signal supply and preventing display failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gate lines are used to supply signals to pixel electrodes, then signal supply is achieved, but breaks in gate lines cause display failures and dark lines
Solution Approach 1:
The gate lines are designed to serve multiple functions: they act as both signal transmission paths and as part of a redundant network through cross-connection wirings. This allows the gate lines to maintain signal supply capability even when one path fails, as the same structure can route signals through alternative paths.
Solution Approach 2:
Cross-connection wirings are introduced as intermediary elements that connect adjacent gate lines. These wirings act as mediators that can transfer gate signals from one gate line to another when a break occurs, ensuring continuous signal supply to pixel electrodes without requiring complete redesign of the gate line structure.
2Reliability
If conventional gate line configuration is used, then device complexity is low, but breaks cause dark lines and display failures
Solution Approach 1:
Cross-connection wirings are pre-configured between adjacent gate lines before operation. This preliminary arrangement ensures that alternative signal paths are already in place and ready to use immediately if a gate line break occurs, without requiring real-time reconfiguration or detection.
Solution Approach 2:
The cross-connection wirings serve as a cushioning mechanism against gate line failures. By having these alternative paths prepared in advance, the system can absorb the impact of gate line breaks and maintain display functionality, preventing the harmful effect of dark lines and display failures.
Data Source
AI summary
A display device, comprising: a first pixel row including a first pixel electrode and a second pixel electrode that are arranged in a first direction; a second pixel row; a third pixel row; a first source line and a second source line that extend in a second direction between the first pixel electrode and the second pixel electrode; a first gate line that extends in the first direction between the first pixel row and the second pixel row; a second gate line that extends in the first direction between the second pixel row and the third pixel row; a first end connection wiring that connects the first gate line to the second gate line at an end portion of the second pixel row; and one or more first cross connection wirings that transverse the second pixel row and connect the first gate line to the second gate line.