Display Panel Stepped Data Link Layout for Narrow Bezels
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Solution Overview
Problem
Existing display devices face challenges in minimizing bezel width while maintaining image quality due to coupling capacitance caused by data link lines in the display area, which affects overall device aesthetics and performance.
Innovation Solution
The display device and panel implement a narrow bezel by forming data link lines in stepped structures within the display area, reducing coupling capacitance and improving image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If data link lines are disposed in the display area to reduce bezel width, then the bezel width is reduced, but coupling capacitance increases which degrades image quality
Solution Approach 1:
The data link lines are divided into multiple segments with different structures. The first data link lines have a linear structure while the second data link lines have a bending structure, including (2-3)th data link lines formed in a stepped structure. This segmentation allows different portions of the data link lines to have different characteristics, reducing overall coupling capacitance while maintaining narrow bezel width.
Solution Approach 2:
Different portions of the data link lines are given different local qualities through varying their structures. The linear structure is used in certain areas while the bending and stepped structures are used in other areas, optimizing the local electrical characteristics to minimize coupling capacitance in critical regions while maintaining compact layout elsewhere.
2Reliability
If data link lines are formed in stepped structures to reduce coupling capacitance, then image quality improves, but device complexity increases
Solution Approach 1:
The data link lines are segmented into different structural types (linear, bending, stepped) rather than using a uniform structure throughout. This allows the complex stepped structure to be applied only where necessary to reduce coupling capacitance, while simpler linear structures are used in other areas, balancing image quality improvement with device complexity management.
Data Source
AI summary
A display panel includes a plurality of subpixels; a first data line group disposed in a first area corresponding to a data driving circuit; a second data line group disposed in a second area located on outside of the first area; a plurality of gate lines; a first data link line group having a linear structure connected to the first data line group in a bezel area; and a second data link line group with a bending structure including (2−3)th data link lines formed in a stepped structure for connecting the second data line group.