Display Device Protruding Data Lines for Wire Repair
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing resolution of liquid crystal displays makes wire repair difficult due to the decreasing width of wires, which complicates the repair process of defective pixels.
Innovation Solution
The display device incorporates protruding portions on the data and gate lines with wider widths to facilitate easy repair, allowing for increased contact area with a repair wire, thereby simplifying the repair process without significantly affecting transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of liquid crystal display is increased, then the display quality is improved, but the wire width decreases making repair difficult
Solution Approach 1:
The data line is designed with different widths in different regions: a first width in the first region and a second width (larger than the first) in the second region. This local variation allows the wire to maintain standard dimensions in most areas for high resolution while providing wider sections for easier repair access.
Solution Approach 2:
The data line is segmented into multiple regions with different functional characteristics. The first region maintains narrow width for resolution, while the second region has expanded width for repair purposes, creating distinct functional zones within a single continuous wire structure.
2Ease of repair
If the wire width is increased to facilitate repair, then the ease of repair is improved, but the transmittance is affected
Solution Approach 1:
The data line has different widths in different regions, with only the second region having increased width for repair. The first region maintains narrow width to preserve light transmittance for display quality, while the second region's expanded width is localized and does not significantly impact overall transmittance.
Solution Approach 2:
The wire is divided into functional segments where only the repair-access region has increased width. This segmentation ensures that the transmittance impact is confined to a small localized area rather than affecting the entire wire length, thereby minimizing the overall impact on display performance.
Data Source
AI summary
A display device including a first substrate, a gate line disposed on the first substrate and extending in a first direction and a data line disposed on the first substrate and extending in a second direction that crosses the first direction. A drain electrode is disposed on the first substrate. A first electrode is configured to connect with the drain electrode. The first electrode includes a first stem portion that extends in the first direction. The data line includes a first protruding portion and a second protruding portion. The first protruding portion and the second protruding portion have a larger width in the first direction than other portions of the data line. The first protruding portion overlaps the first stem portion of the first electrode in a third direction that is perpendicular to an upper surface of the first substrate.