Display Panel Data Link Layout for Narrow Bezel Image Quality
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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 causing image quality degradation
Solution Approach 1:
The data link lines are divided into multiple segments with different structures. First data link lines have a linear structure, while second data link lines have a bending structure with stepped portions. This segmentation allows different sections of the data link lines to be optimized for different functions, reducing overall coupling capacitance while maintaining compact bezel design.
Solution Approach 2:
Different portions of the data link lines are given different local characteristics. The first data link lines maintain a simple linear structure for efficient signal transmission, while the second data link lines incorporate bending and stepped structures in specific locations to reduce coupling capacitance with adjacent signal lines, applying local quality changes to mitigate the harmful effect.
2Object-affected harmful factors
If data link lines are formed in stepped structures to reduce coupling capacitance, then image quality is improved, but device complexity increases
Solution Approach 1:
The complex stepped structure is applied only to the second data link lines, while the first data link lines maintain a simple linear structure. This segmentation of structural complexity allows the device to achieve coupling capacitance reduction where needed without unnecessarily complicating the entire data link line system.
Solution Approach 2:
The stepped structure is applied partially to only the second data link lines rather than all data link lines. This partial action is sufficient to reduce the coupling capacitance issue without applying excessive structural complexity to the entire system, achieving the necessary mitigation with minimal added complexity.
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.