Array Substrate Layout for Narrow-Bezel Display Bonding
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Solution Overview
Problem
Existing display technologies face challenges in reducing the size of the border frame due to the dense arrangement of wirings in the binding area, which makes it difficult to achieve a narrow-border display.
Innovation Solution
The proposed solution involves an array base plate with a substrate, an active area, and a binding area, where an alignment layer extends from the active area to the binding area, and binding terminals are located in the binding area without overlapping with the alignment layer's projection. This configuration allows for a reduced distance between the binding terminals and the active area edge, enabling a smaller border frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the binding area is arranged densely to accommodate wirings, then the electrical connection functionality is improved, but the border frame size cannot be reduced
Solution Approach 1:
The alignment layer is extended from the active area into the binding area, utilizing the third dimension (layer depth) to accommodate alignment functions. This allows binding terminals to be positioned closer to the active area edge without compromising alignment accuracy, as the alignment layer provides coverage in the extended region. The solution transforms a two-dimensional layout problem into a three-dimensional spatial arrangement, enabling reduced border frame size while maintaining reliable electrical connections.
2Manufacturing precision
If the alignment layer is extended to the binding area, then the alignment precision is improved, but the area occupied by the alignment layer increases
Solution Approach 1:
The alignment layer is merged with the binding area structure, extending continuously from the active area into the binding area. This integration allows the alignment layer to serve dual purposes: providing alignment precision for the active area while simultaneously covering the binding terminal regions. The merging eliminates the need for separate alignment structures in the binding area, optimizing space utilization while maintaining manufacturing precision.
Data Source
AI summary
An array base plate and a display apparatus are provided by the present application. The array base plate includes a substrate, an active area and a binding area that are located on the substrate, wherein the binding area is located at one side of the active area; the array base plate further includes: an alignment layer extending from the active area to the binding area; and binding terminals located in the binding area, wherein an orthographic projection of the alignment layer on the substrate does not overlap with orthographic projections of the binding terminals on the substrate; wherein in a direction parallel to a plane where the substrate is located and pointing from the active area to the binding area.