Curved Data Lines in Display Panels for V-Line Defect Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional dual-gate pixel structures in display panels result in inconsistent pixel layout sizes, leading to poor display quality and vertical line defects due to inconsistent gate-source capacitances.
Innovation Solution
A display panel with a specific pixel structure arrangement where data lines and touch sensing lines have non-straight, continuously curved or bent shapes, with each subpixel coupled to different scan lines, and formed from the same metal layer, ensuring consistent pixel layouts and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a conventional dual-gate pixel structure is used, then the number of data lines can be reduced by half, but the layout sizes of the pixels become inconsistent, resulting in inconsistent gate-source capacitances and poor display quality
Solution Approach 1:
The data lines are designed with curved shapes instead of straight lines, allowing them to bend around pixel regions and achieve consistent routing lengths. This curvature enables the data lines to maintain uniform spacing and length across all pixels while still serving the reduced number of pixel columns, thereby ensuring consistent gate-source capacitances without requiring as many data lines
Solution Approach 2:
The invention changes the geometric parameters of the data lines by introducing curved paths with specific radii and bending angles. By adjusting these geometric parameters, the data line lengths are equalized across different pixel columns, ensuring that all pixels receive data signals with equivalent electrical characteristics, thus resolving the layout inconsistency issue while maintaining the reduced data line configuration
2Quantity of substance
If a conventional dual-gate pixel structure is used, then the number of data lines can be reduced by half, but vertical line defects occur due to inconsistent gate-source capacitances
Solution Approach 1:
The curved data line design eliminates the vertical line defects by ensuring uniform electrical characteristics across all pixels. The curvature allows precise control of data line lengths and spacing, preventing the capacitance variations that cause V-line defects, while still achieving the goal of using fewer data lines
Solution Approach 2:
The invention uses identical curved routing patterns for all data lines, creating a replicated geometric structure that ensures each data line has the same length and electrical characteristics. This copying of the curved pattern across all pixels guarantees consistent gate-source capacitances, eliminating the reliability issues associated with conventional layouts
Data Source
AI summary
A display panel and a fabrication method thereof are provided. The display panel includes pixels, data lines and scan lines. The pixels are arranged in pixel rows and pixel columns, and each pixel has subpixels. The data lines are configured to transmit data signals to the pixels, and each data line has a non-straight and continuously curved shape or a non-straight and continuously bent shape. The scan lines are configured to sequentially transmit scan signals to the pixels. The subpixels of each pixel are coupled to different scan lines, and each data line is curved or bent with respect to a unit of one pixel. Accordingly, the display panel of the invention can avoid the problems of poor image display and vertical line (V-line) defects as well as reducing power consumption.