Diagonal Signal Lines for Flexible Display Stress Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display panels with flexible substrates that can be bent or rolled are prone to physical and structural damage, such as cracks and separation, due to stresses applied during shape changes, which existing technologies have not adequately addressed.
Innovation Solution
The display device features data lines and scan lines arranged in diagonal directions, with drivers positioned accordingly to reduce stress on the panel, allowing for deformation without causing damage, and includes a method of driving the display panel by alternating the output of scan and data signals across these lines to minimize strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the substrate is made flexible to enable bending and rolling, then the adaptability and versatility of the display device are improved, but the reliability deteriorates due to cracks and separation caused by stresses
Solution Approach 1:
The patent changes the arrangement dimension of signal lines from orthogonal (horizontal/vertical) to diagonal directions. This dimensional change allows the lines to better accommodate bending stresses by distributing strain more evenly across the flexible substrate, reducing crack formation while maintaining signal transmission functionality.
Solution Approach 2:
The patent employs asymmetric arrangement of data lines and scan lines in diagonal directions rather than symmetric orthogonal arrangement. This asymmetric configuration optimizes stress distribution patterns during bending, preventing uniform stress concentration that leads to cracks and separation in conventional designs.
2Object-affected harmful factors
If data lines and scan lines are arranged in diagonal directions, then the harmful effects of stress are reduced, but the device complexity increases due to driver arrangement
Solution Approach 1:
The patent merges the functions of multiple drivers by arranging data drivers and scan drivers alternately along diagonal directions. This consolidation reduces the total number of separate driver components needed compared to orthogonal arrangements, simplifying the overall device structure while achieving stress reduction through diagonal line configuration.
Solution Approach 2:
The diagonal arrangement of drivers enables them to serve multiple functions - controlling both data lines and scan lines that extend in diagonal directions. This multi-functional configuration reduces the need for additional dedicated drivers, simplifying the device despite the non-orthogonal geometry.
Data Source
AI summary
A display device and a method of driving the same are disclosed. The display device includes a display panel configured to display an image, a plurality of data lines arranged in a first diagonal direction of the display panel, a plurality of scan lines arranged in a second diagonal direction intersecting the first diagonal direction of the display panel, a plurality of data drivers connected to the plurality of data lines, and a plurality of scan drivers connected to the plurality of scan lines.