Efficient Repair of Array Substrates with Laser-Induced Coupling
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Summary
Problems
In the manufacturing of array substrates for display panels, defects in pixel units can lead to issues with gray scale voltage transmission, causing display problems, and existing repair methods are inefficient due to complex structures and high defect rates.
Innovation solutions
The implementation of a repair structure within pixel units, comprising a first and second part that are mutually insulated but electrically coupled after repair, allowing for electrical connection via laser irradiation, enabling gray scale voltage transfer from adjacent pixel units to ensure proper display functionality.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a repair structure is introduced to enable repair of defective pixel units, then the reliability of the display substrate is improved, but the device complexity increases due to the additional repair structure components and laser irradiation process
Why choose this principle:
The repair structure is divided into two insulated parts (first part and second part) that are spatially separated and independently formed. This segmentation allows the structure to remain electrically isolated during normal operation while enabling selective electrical connection through laser irradiation for repair purposes, thus improving reliability without requiring a fully connected complex structure from the beginning
Principle concept:
If a repair structure is introduced to enable repair of defective pixel units, then the reliability of the display substrate is improved, but the device complexity increases due to the additional repair structure components and laser irradiation process
Why choose this principle:
The repair structure parts are pre-formed and positioned in their insulated states during the manufacturing process, preparing the substrate for potential future repair. The first part is formed connected to the first electrode, and the second part is formed connected to adjacent pixel units, but they remain insulated until needed. This preliminary preparation enables quick repair activation through laser irradiation without requiring complex real-time decision-making or additional manufacturing steps
Application Domain
Data Source
AI summary:
The implementation of a repair structure within pixel units, comprising a first and second part that are mutually insulated but electrically coupled after repair, allowing for electrical connection via laser irradiation, enabling gray scale voltage transfer from adjacent pixel units to ensure proper display functionality.
Abstract
An array substrate and a method for manufacturing the same, a method for repairing an array substrate, and a display apparatus are provided. The array substrate includes a base substrate and pixel units above the base substrate, each pixel unit includes a light emitting device, the light emitting device includes a first electrode and a second electrode, at least one pixel unit is provided with a repair structure, the repair structure includes a first part and a second part mutually insulated, the first part and the second part are electrically coupled after being repaired, the first part is electrically coupled to the first electrode of the light emitting device in the pixel unit where the repair structure is located, the second part is electrically coupled to the first electrode of the light emitting device in any pixel unit other than the pixel unit where the repair structure is located.