Display Panel Data Link Routing for Narrow Bezels and Uniform Luminance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in minimizing the bezel width while maintaining image quality, particularly in organic light-emitting display devices where the width of the bezel area increases due to varying lengths of data link lines, leading to parasitic capacitance and luminance inconsistencies.
Innovation Solution
The implementation of a display panel design where data lines in a first area are connected to a first data link line group with a linear structure and data lines in a second area are connected to a second data link line group with a bending structure, ensuring all horizontal data link lines in the display area have the same length to reduce parasitic capacitance and improve image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If data link lines are extended to connect data lines in the second area, then the bezel width can be reduced, but parasitic capacitance increases and luminance consistency deteriorates
Solution Approach 1:
The data link line group is divided into multiple independent data link lines, each connecting to specific data lines. This segmentation allows optimization of each link line's path and length, reducing overall parasitic capacitance while achieving narrow bezel width.
Solution Approach 2:
All horizontal data link lines are designed to have substantially the same length, creating equipotential conditions that minimize variations in parasitic capacitance across different data channels, thereby maintaining luminance consistency while reducing overall capacitance compared to extended varying-length designs.
2Length of stationary object
If data link lines are extended to connect data lines in the second area, then the bezel width can be reduced, but luminance consistency deteriorates
Solution Approach 1:
All horizontal data link lines are designed to have substantially the same length, creating equipotential conditions that minimize variations in parasitic capacitance across different data channels, thereby maintaining luminance consistency while achieving narrow bezel width.
Solution Approach 2:
The data link lines are configured with different structures (linear for first area, bending for second area) but optimized to have equal effective lengths, allowing each region to be optimized locally while maintaining global luminance consistency.
3Device complexity
If a linear data link line structure is used for all data lines, then the structure is simple, but data lines in the second area cannot be properly connected
Solution Approach 1:
Different data link line structures are applied to different areas: linear structure for the first area and bending structure for the second area. This allows each region to have the optimal structure for its specific connection requirements while maintaining overall system simplicity.
Solution Approach 2:
The data link line group is divided into multiple independent data link lines with area-specific structures, allowing the first area to use simple linear connections while the second area uses bending connections to reach distant data lines, expanding connection capability without significantly increasing overall complexity.
Data Source
AI summary
Embodiments of the disclosure relate to a display device and a display panel. A display panel includes a plurality of subpixels, a plurality of data lines comprising a first data line group disposed in a first area corresponding to a data driving circuit and 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 and disposed in a bezel area, and a second data link line group having a bending structure in which (2-3)th data link lines having the same length are connected to the second data line group through a display area.