Display Connection Line Bypass for Signal Reliability
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Solution Overview
Problem
Liquid crystal displays face issues with reduced display quality due to damage in signal lines, leading to visible defects and vertical line patterns, as damaged signal lines can affect voltage distribution among pixel electrodes.
Innovation Solution
A display apparatus design featuring a connection line that acts as a bypass for data signals between sub-pixel electrodes and data lines, minimizing equivalent resistance and parasitic capacitances, and optimizing the layout to ensure uniform voltage distribution and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the line width of signal lines is made small to improve aperture ratio, then the aperture ratio is improved, but the signal lines become prone to damage causing display defects
Solution Approach 1:
The patent introduces a connection line as an intermediary component that provides an alternative electrical path between pixel electrodes and data lines. When the original data line is damaged, the connection line acts as a mediator to maintain electrical connectivity, thereby resolving the reliability issue without requiring thicker signal lines that would reduce aperture ratio.
2Reliability
If voltages with different polarities are alternately applied to pixel columns to improve display quality, then display quality is improved, but damaged signal lines cause unwanted voltage effects leading to vertical line patterns
Solution Approach 1:
The connection line is designed as a preventive measure against signal line damage. By providing an alternative electrical path in advance, it cushions against the harmful effects of data line breakdown. When a data line is damaged, the connection line prevents the propagation of unwanted voltages that would otherwise cause vertical line patterns, thereby maintaining display quality despite the alternating voltage application.
3Reliability
If a connection line is added to provide bypass path for data signals, then reliability is improved and line defects are prevented, but device complexity increases
Solution Approach 1:
The electrical connection path is segmented into multiple independent routes: the primary data line and the alternative connection line. This segmentation allows the system to maintain functionality through one path even when the other fails. The connection line is implemented as a separate, simplified structure that complements rather than complicates the existing data line architecture.
4Use of energy by moving object
If the connection line is disposed between sub-pixel electrodes to minimize parasitic capacitances, then equivalent resistance is minimized and power consumption is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The connection line is positioned with specific local quality characteristics: it is disposed between sub-pixel electrodes in regions where minimizing parasitic capacitance is most critical. This localized positioning optimization reduces equivalent resistance and power consumption in key areas without requiring uniform high-precision positioning across the entire display structure, thereby balancing performance improvement with manufacturing feasibility.
Data Source
AI summary
A display apparatus includes a first sub-pixel and a second sub-pixel. The first sub-pixel and the second sub-pixel are electrically and respectively connected to a first gate line and a second gate line adjacent to each other and are electrically connected to a data line. The display apparatus further includes a connection line disposed between sub-pixel electrodes of the first and second sub-pixels. The connection line has two ends connected to the data line and serves as an additional or alternative path for transmitting a data signal that is transmitted by the data line.