Dummy Gate Tracking Lines for LCD Loading Equalization
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Solution Overview
Problem
Liquid crystal display (LCD) devices experience non-equalized loading effects due to signal interference between conducting layers, leading to inconsistent pixel loading and compromised display quality.
Innovation Solution
Incorporating dummy gate tracking lines that are electrically disconnected from gate lines but parallel to data lines, with modulating signals applied to these dummy lines to generate a balanced loading effect similar to that of gate tracking lines, thereby equalizing the loading across pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gate tracking lines are electrically connected to gate lines to deliver gate driving signals, then gate lines can be properly driven, but signal interference between conducting layers occurs causing non-equalized loading effect on pixels
Solution Approach 1:
Dummy gate tracking lines serve as intermediary elements that are electrically disconnected from gate lines but positioned parallel to data lines. These dummy lines act as mediators to generate loading effects that compensate for the interference caused by actual gate tracking lines, thereby equalizing the loading effect across all pixels without disrupting the gate driving signal delivery function
Solution Approach 2:
The patent changes the electrical connection parameter of tracking lines by creating dummy gate tracking lines that are electrically disconnected from gate lines, while maintaining their physical positioning and signal delivery capability to adjacent lines. This parameter change allows the dummy lines to generate loading effects without causing the same interference issues as connected tracking lines
2Manufacturing precision
If dummy gate tracking lines are added to equalize loading effect, then display quality improves, but device complexity increases
Solution Approach 1:
Dummy gate tracking lines are created as copies of the gate tracking line structure, with identical geometric configuration and electrical connection characteristics to data lines. These copied structures replicate the loading effect generation mechanism without the harmful signal interference, allowing display quality improvement through a straightforward structural replication approach
Data Source
AI summary
A display device includes a substrate, gate lines, data lines, gate tracking lines, and dummy gate tracking lines. The gate lines and the data lines are arranged perpendicularly. Each gate tracking line is disposed between one parts of two adjacent data lines, and substantially parallel to the data lines. Each dummy gate tracking line is electrically disconnected to the gate lines, disposed between other parts of two adjacent data lines, and substantially parallel to the data lines.