Curved Gate and Data Lines for Flexible Display Wiring
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Solution Overview
Problem
Flexible display panels with straight gate and data lines are prone to wiring breakage when bent due to tensile stress, leading to poor display performance.
Innovation Solution
The use of curved gate and data lines, arranged in a periodic S-shaped or sawtooth pattern, which increases their length and reduces deformation under tensile stress, enhancing bending resistance and preventing wiring breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If straight gate lines and data lines are used in the display panel, then the manufacturing process is simple and the wiring layout is easy, but the connecting wirings are easily broken when the display panel is bent due to tensile stress
Solution Approach 1:
The patent applies curvature to the gate lines and data lines, transforming them from straight lines to curved lines with periodic undulations. This curvature design allows the wirings to flex and deform elastically when the display panel is bent, preventing wire breakage while maintaining electrical connectivity. The curved geometry distributes mechanical stress along the wiring path, resolving the contradiction between manufacturing simplicity and bending reliability.
Solution Approach 2:
The patent changes the geometric parameters of the gate lines and data lines by introducing periodic curves with specific wavelengths and amplitudes. This parameter modification enables the wirings to accommodate panel bending through controlled deformation, transforming the rigid straight-line configuration into a flexible curved configuration that maintains reliability under mechanical stress while remaining compatible with standard manufacturing processes.
2Reliability
If the gate lines and data lines are made curved to prevent breakage, then the bending resistance is improved, but the wiring length increases
Solution Approach 1:
The periodic curved design provides an optimal balance between bending resistance and wiring length. By using gentle, periodic undulations rather than sharp bends or excessive curves, the design achieves sufficient flexibility to prevent wire breakage during panel bending while minimizing the additional length introduced by the curved path. The curvature parameters are optimized to provide just enough slack for bending accommodation without excessive length increase.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The curved lines effectively disperse tensile stresses into shear stresses, preventing wiring breakage and ensuring a stable display even when the panel is bent, thus maintaining display quality.
Implementation Method 1
The curved lines effectively disperse tensile stresses into shear stresses, preventing wiring breakage and ensuring a stable display even when the panel is bent
Data Source
AI summary
The invention provides an array substrate, a display panel and a display device, belongs to the field of display technology, and can solve the problem of breakage of metal connecting wirings when the array substrate is bent. The array substrate comprises a plurality of gate lines and a plurality of data lines, wherein at least a part of the gate lines and/or at least a part of the data lines are curved. The display panel in the invention comprises the array substrate, and the display device in the invention comprises the display panel. The invention may be applied to manufacture of a flexible display panel.