Array Substrate Layout for CCD Alignment in Ultra-Narrow Frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display panels with ultra-narrow frames lack sufficient space for alignment identification terminals, making it difficult for CCD cameras to identify them, leading to alignment issues during manufacturing.
Innovation Solution
The alignment identification terminals are integrated into the sub-pixel electrode regions of the array substrate, either in the first metal layer, the second metal layer, or both, allowing for a larger arrangement size and accurate identification, even in narrow frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If alignment identification terminals are disposed outside display regions in frame regions, then they can be arranged with sufficient space, but for ultra-narrow frames (width < 1mm), there is insufficient space in frame regions making CCD camera identification difficult
Solution Approach 1:
The patent moves the alignment identification terminals from the traditional frame region (one-dimensional boundary area) into the display region (two-dimensional active area), utilizing the sub-pixel electrode regions. This dimensional shift allows the terminals to be positioned where there is sufficient space while remaining accessible to CCD cameras during manufacturing alignment processes.
Solution Approach 2:
The alignment identification terminals are merged with the existing sub-pixel electrode regions, combining the display function with the alignment identification function. The terminals are formed using the same metal layers (first metal layer or second metal layer) that constitute the electrode structure, integrating multiple functions into a unified design.
2Length of stationary object
If alignment identification terminals are placed in ultra-narrow frame regions, then frame width is reduced, but the terminals cannot be identified by CCD cameras
Solution Approach 1:
By relocating terminals from the narrow frame boundary to the broader display region, the patent ensures adequate spatial dimensions for reliable CCD identification while maintaining ultra-narrow frame characteristics.
Solution Approach 2:
The patent applies different functional qualities to different regions: the frame region maintains its ultra-narrow dimensional characteristic for aesthetic purposes, while the display region's sub-pixel electrode areas provide localized spaces with sufficient dimensions for reliable alignment terminal placement and identification.
3Area of stationary object
If alignment identification terminals are arranged in narrow spaces, then frame region space is utilized, but arrangement size is limited affecting identification accuracy
Solution Approach 1:
The patent transitions from utilizing the limited one-dimensional frame region to utilizing the two-dimensional sub-pixel electrode regions within the display area, providing substantially larger arrangement space for precision alignment terminals.
Solution Approach 2:
The alignment identification terminals are formed simultaneously with the metal layers during the manufacturing process, ensuring precise positioning and arrangement before subsequent manufacturing steps. The terminals are pre-configured in the metal layers with accurate geometric patterns for optimal CCD identification.
Data Source
AI summary
The present invention provides an array substrate and a display panel. The array substrate includes a substrate, a first metal layer, a second metal layer, a pixel electrode layer, and an alignment identification terminal that are sequentially stacked. The alignment identification terminal is disposed in at least one of the first metal layer and the second metal layer, and is at least partially disposed in a sub-pixel electrode region. An arrangement of the alignment identification terminal is no longer limited by a narrow frame, and a size can be made larger to meet the needs of a CCD identification, ensuring an accuracy of identification and alignment.