Display device, flexible substrate and manufacturing method of flexible substrate

Abstract

The invention relates to the technical field of flexible display, in particular to a display device, a flexible substrate and a manufacturing method of the flexible substrate. The flexible substrate comprises a substrate, wherein the substrate is provided with a plurality of flexible layers; fiber paved layers are formed between two adjacent flexible layers. According to the flexible substrate and the manufacturing method thereof provided by the invention, the flexible layers and the fiber paved layers form the flexible substrate together, so that the flexible layers can be effectively prevented from being deformed at high temperature, stress is reduced, the adhesive force of a film on the substrate is increased to the maximum extent, and the bending and compressing strength of the substrate are improved.

Description

technical field [0001] The invention relates to the field of flexible display technology, in particular to a display device, a flexible substrate and a manufacturing method thereof. Background technique [0002] With the rapid development of electronic information and the increasingly high-quality demands of consumers, the quality and display modes of displays play a very important role. Consumers are no longer satisfied with pure visual perception, but also require displays to be thinner, lighter, more portable, and more personalized. It is a qualitative leap from a thick CRT to a thin LCD, and now LCD has made great progress in some breakthroughs in display quality such as high resolution, narrow frame, and low power consumption. In recent years, functions such as 3D and touch, which have developed rapidly, have been welcomed by consumers. However, due to the inherent characteristics of liquid crystal materials, LCDs are still difficult to break through the defects of sl...

AI Technical Summary

Problems solved by technology

[0004] The ultra-thin glass substrate has good water vapor and oxygen barrier properties and good transparency, but it is very sensitive to crack defects, has poor impact resistance and bending properties, and it is difficult to realize the roll-to-roll (roll to roll) process. The development of ultra-thin Flexible glass is hard to come by

The metal foil substrate has the function of blocking water and oxygen, high temperature resistance and low cost, and its own ductility, which is easy to realize the roll-to-roll process, but the surface of the foil is rough (Ra=0.6um), even after polishing, it still needs to be plated planarization layer, which increases the thickness of the device

Plastic substrates are more flexible, lighter, and more impact-resistant, but plastic substrates are not resistant to high temperatures, and the TFT process must be completed at very low temperatures, which will increase defects in the film, but the amount of plastic deformation at high temperatures is very large. Large, higher than the glass transition temperature, the amount of plastic deformation is seriously increased and the lattice match between the plastic substrate and the film is not as good as that of glass, and the film is easy to fall off

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