Storage Line Repair for LCD Data Lines
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional liquid crystal display (LCD) devices face difficulties in efficiently repairing disconnections in data lines during manufacturing, as forming separate conductive wiring for repairs decreases process efficiency and makes post-manufacturing repairs challenging, and conventional storage lines used for repairs often compromise their original function of transmitting voltage signals.
Innovation Solution
The implementation of a display device design that incorporates storage lines with horizontal and vertical portions overlapping data lines, allowing the vertical portion to function as a repair line while the horizontal portion maintains its original voltage transmission function, thereby enabling easy repair of data line disconnections without compromising the storage line's original function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a separate conductive wiring is formed for repairing data line defects, then the data line can be repaired, but the process efficiency decreases and additional processing steps are required
Solution Approach 1:
The storage line is designed to serve dual functions: its primary function of transmitting storage voltage signals and a secondary function as a repair line for data line defects. By making the storage line universally functional, the patent eliminates the need for separate repair wiring, thereby maintaining manufacturing efficiency while enabling repair capability.
Solution Approach 2:
The patent merges the repair line function with the existing storage line structure. Instead of adding a separate conductive wiring for repair purposes, the storage line is configured to also serve as the repair line, combining multiple functions into a single structure and avoiding additional processing steps.
2Ease of repair
If conventional storage lines are used for repair, then repair is possible, but the storage line cannot transmit voltage signals simultaneously
Solution Approach 1:
The storage line is designed with multi-functionality to simultaneously serve as both a repair line for data line defects and a functional line for transmitting storage voltage signals. This is achieved through specific structural configurations including holes at intersections with data lines and protruding portions that maintain electrical connectivity while enabling repair functions.
Solution Approach 2:
The storage line is segmented into different portions with specific functions: the main body transmits storage voltage signals, while specific segments (protruding portions) are configured to facilitate repair functions. The holes at intersection points with data lines allow the storage line to serve as a repair path without compromising its voltage transmission capability.
3Ease of repair
If the storage line is configured with holes and protruding portions, then it can serve as a repair line, but the structural complexity increases
Solution Approach 1:
The storage line is designed with specific structural features (holes at data line intersections and protruding portions) that enable it to perform dual functions: transmitting storage voltage signals and serving as a repair line. These structural modifications are strategically placed to achieve multi-functionality without excessive complexity.
Solution Approach 2:
The storage line maintains a simple linear structure in most regions for efficient voltage signal transmission, while local portions are modified with holes and protruding portions specifically at intersection points with data lines. This local quality approach ensures repair functionality is provided only where needed, minimizing overall structural complexity.
Data Source
AI summary
A display device includes: a substrate including a display area at which an image is displayed; and on the substrate in the display area thereof: a data line and a gate line on the substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode connected to the thin film transistor; and a storage line which overlaps the pixel electrode. The storage line has a first hole at a position overlapping the data line.