A high stiffness and high reflectivity reflective film

Abstract

The invention relates to a reflective film with high stiffness and high reflectivity. The reflective film comprises a polyester layer A containing pores therein and a polyester layer B without pores therein, and the porosity of the polyester layer A is 8-26%. The reflective film is simple in structure, high in stiffness, and good in coordination between the film stiffness and the reflectivity, wherein reflecting property in a film plane is uniform, the tearing strength resistance of the reflective film is improved, the tearing phenomenon in a later cutting process is eliminated, the production stability and the yield are improved, and the reflective film is particularly suitable for large-size displays due to high stiffness.

Description

technical field

[0001] The invention relates to a reflective film for a backlight source used in a liquid crystal display, in particular to a reflective film with high stiffness and high reflectivity. Background technique

[0002] Currently, liquid crystal displays are widely used as display devices in devices such as cellular phones, computers, televisions, and instruments. The liquid crystal display itself does not emit light, and needs to provide illumination light through a backlight source. In order to improve the utilization rate of light in the backlight source, it is necessary to assemble a reflective film to reduce the loss caused by light leakage, increase the brightness of the display, and further improve the picture quality of the display.

[0003] In order to improve the reflectivity, generally by adding particles or making the reflective film produce micropores or bubbles, the reflectivity is improved by using the refraction of the particles or the refractive ...

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