Flexible substrate, production method, flexible display device and electronic device

Abstract

The invention discloses a flexible substrate, a production method, a flexible display device and an electronic device. The flexible substrate comprises a substrate body, a first flexible material layer arranged on the substrate body, a metal wire arranged on the first flexible material layer and a second flexible material layer covering the first flexible material layer and the metal wire. The flexible substrate also comprises multiple island regions and island connection regions, wherein the metal wire is arranged in the island connection regions and extend into the island regions. Accordingto the flexible substrate, the metal wire is arranged in the flexible substrate body with better tensile properties to relieve cracking or fracturing in the prior art, meanwhile, shear stress generated during warping deformation of the flexible substrate is reduced, and stress damage of the metal wire in the multidirectional folding and stretching process is reduced. Therefore, the tolerance of the flexible display device or the electronic device to device deformation is improved, and accordingly the yield of a product is increased.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible substrate, a manufacturing method, a flexible display device and electronic devices. Background technique [0002] Organic Electroluminescent Display (OLED / LED) has gradually become the mainstream in the field of display due to its low power consumption, high color saturation, wide viewing angle, thin thickness, and flexibility. Applied to terminal products such as smartphones, tablets, and TVs. Among them, flexible OLED / LED products are the most prominent, and gradually become the mainstream of OLED / LED displays because they can meet various special structures. With the development of flexible technology, from bendable (Bendable), bend (Foldable), gradually transition to elastic flexibility (Stretchable). [0003] Existing flexible substrates generally use flexible substrates. On the substrate of each layer of PI (polyimide) or other flexible materials, a thicker b...

AI Technical Summary

Problems solved by technology

When transitioning to elastic flexibility, due to the severe local deformation, the existing devices are easy to cause small damages through processes such as collision and separation, and then through the expansion of small damages, larger cracks occur and expand along the flexible substrate, resulting in flexible Tear or damage to the substrate, resulting in poor reliability or even failure

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