Segmented Anti-Crack Wiring for Flexible Display Panels
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Solution Overview
Problem
Existing flexible display panels face issues where anti-crack wiring, designed to prevent external stress, is prone to damage during electrostatic tests due to excessive electric charge accumulation, leading to potential breakage and malfunction.
Innovation Solution
The display panel incorporates a peripheral region with disconnected, F-shaped or comb-shaped anti-crack wiring sub-units arranged at equal intervals, featuring metal crack barrier lines and common connection lines to disperse electric charges and improve impedance, thereby protecting internal wiring from damage during electrostatic tests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If anti-crack wiring is designed as a large piece of metal material interconnecting in a fence manner surrounding the panel, then the ability to obstruct external forces from entering the panel is improved, but the impedance decreases and electric charges accumulate easily, making the wiring prone to damage during electrostatic tests
Solution Approach 1:
The anti-crack wiring is divided into multiple disconnected wiring sub-units instead of forming a continuous fence-like structure. Each sub-unit is isolated from others, which increases the overall impedance and prevents electric charge accumulation while maintaining the crack obstruction function through the distributed arrangement of multiple segments
Solution Approach 2:
The wiring sub-units are strategically positioned in the peripheral region with specific spacing and configurations (F-shape or comb-shape). This local optimization allows each sub-unit to provide anti-crack protection in its specific zone while the disconnected nature maintains high impedance, creating different functional properties in different spatial locations
2Reliability
If anti-crack wiring is placed close to the cutting path to intercept external forces, then the protection of internal functional wiring is improved, but the wiring is more likely to be damaged by blasting during electrostatic tests due to charge accumulation
Solution Approach 1:
By segmenting the anti-crack wiring into disconnected sub-units positioned near the cutting path, the patent maintains the protective function against external forces while increasing impedance to prevent charge accumulation that would make the wiring susceptible to electrostatic damage
Solution Approach 2:
The disconnected wiring sub-units act as intermediaries between the external cutting forces and the internal functional wiring. They intercept and dissipate external forces through their distributed configuration while their high impedance prevents them from becoming charge accumulation points that could transfer electrostatic damage to internal wiring
Data Source
AI summary
The present disclosure provides a display panel and a display device. The display panel includes a functional region and a peripheral region surrounding the functional region, wherein the functional region is provided with peripheral working wiring adjacent to the peripheral region, and the peripheral region is provided with anti-crack wiring including a plurality of wiring sub-units that are disconnected from each other. The display device includes the above display panel.