Flexible polarizer and display device

Abstract

The invention discloses a flexible polarizer and a display device. The flexible polarizer comprises a stretched polarizing layer, an adhesive layer located on the surface of one side of the polarizinglayer and a stripping layer located on the surface of the side, deviating from the polarizing layer, of the adhesive layer, wherein the adhesive layer comprises a first bonding portion and two secondbonding portions respectively located at two sides of the first bonding portion, and the interface adhesion of the second bonding portions are greater than the interface adhesion of the first bondingportion. After the stripping layer of the flexible polarizer is striped off, it can be directly attached to the surface of a display panel. The size of the flexible polarizer can be larger than the attached display size of the display panel, so that the second bonding portions can be reversely folded and adhered to the back surface of at least one film layer of the flexible polarizer or the display panel during adhesion, the second bonding portions have strong interfacial adhesion, the shrinkage stress generated by a stretchable polarizer when it is affected by the environment can be compensated, and the problem of unevenness caused by shrinkage stress can be avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a flexible polarizer and a display device. Background technique [0002] For flexible displays, especially flexible organic light-emitting diode displays (Organic Light-Emitting Diode, OLED for short), it is necessary to use a circular polarizer outside the display panel to shield the interference of ambient light on the display device and improve the display contrast. At present, the commonly used polarizing layer uses polyvinyl alcohol (PVA) polymer long chains to absorb iodide ions, and then aligns the PVA molecules and the iodide ions carried by them through directional stretching, so as to achieve the effect of polarization. [0003] However, this type of stretched polarizing film itself has a certain internal stress, and is limited by the moisture absorption and thermal instability of PVA itself. The shrinkage stress and deformation in the direction of the extension axis ...

AI Technical Summary

Problems solved by technology

[0003] However, this type of stretched polarizing film itself has a certain internal stress, and is limited by the moisture absorption and thermal instability of PVA itself. Shrinkage stress and deformation in the direction of the extension axis lead to warping, bubbling, undulation and even glue opening of the flexible polarizer, which seriously affects the environmental adaptability and application expansion of flexible displays.

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