Composite film for display, polarizer and display device

Abstract

The invention discloses a composite film for displaying, a polaroid and a display device. The composite film for displaying comprises a substrate film layer and a surface coating arranged on the surface of the substrate film layer. The surface coating is internally provided with a plurality of projection structures. The cross sectional areas of the projection structures in the direction parallel to the surface coating decrease gradually in the direction, where the substrate film layer vertically points to the surface coating. The plurality of projection structures arranged in the surface coating of the composite film can enable the reflection direction of each incident ray incident to the inner portion of the surface coating to rotate to enable more incident rays to be reflected to the range of a viewing angle deviating from the direct viewing direction, thereby increasing glossiness of the surface coating, enabling the reflected light in a large angle to be increased to cause dazzle, and realizing a peep-proof effect, where normal display is realized only in the direct-viewing small angle; and the glossiness can be adjusted by adjusting the side inclination degrees of the projection structures, so that light ray modulation cost is low, and unnatural display is not caused.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a composite film for display, a polarizer and a display device. Background technique [0002] The rapid development of various forms of display products has not only changed people's production and lifestyle, but also brought great convenience and fun to people's life. At the same time, the leakage of secrets caused by display products during use has gradually attracted people's attention. For example, in the application of special displays such as ATM machines, due to the large viewing angle of the existing display screens, there is no guarantee for the security of personal private information, such as bank account numbers and passwords, so it is necessary to implement anti-peeping design on such display devices . [0003] In existing anti-peeping settings, directional light sources can be used to reduce the display viewing angle of the display to achieve anti-peeping effects...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a composite film for display, a polarizer, and a display device, which are used for anti-peep display and solve the problems of high cost and unnatural display in the prior art

Images