A low thermal shrinkage, self-adhesive optical reflective film

Abstract

A low thermal shrinkage, self-adhesive optical reflective film, including a reflective film base layer, the reflective film base layer is coated with a resin layer on both sides, and the resin layer is filled with temperature-regulating particles with a core-shell structure; the lower resin layer is coated with an antistatic agent Glue layer, on the glue layer is bonded with a layer of release film; the base layer of the reflective film includes the main resin and organic particles incompatible with the main resin, and inorganic particles incompatible with the main resin. After the core layer is stretched, the organic particles and Separation between the main resin and between the inorganic particles and the main resin to form cavities, the density difference between the organic particles and the main resin is less than 0.25g / cm 3 . The reflective film of the present invention is coated with a resin layer containing temperature-regulating microparticles on both sides. By absorbing / releasing heat, the film layer maintains a stable and suitable working temperature, and prevents the reflective film from shrinking and deforming due to environmental temperature changes.

Description

technical field [0001] The invention relates to an optical reflection film. Background technique [0002] The liquid crystal display itself does not emit light, and the display function benefits from the light emitted by the modulated backlight source. The performance index of the display depends on the performance of the backlight source, so the performance of the backlight module light source directly affects the quality of liquid crystal display. The reflective film is one of the most important optical films in the backlight module of the liquid crystal display. In the liquid crystal display, the reflective film is at the bottom of the backlight module of the light guide plate, reflecting the light leaked from the light source back to the light guide plate, so that it can be concentrated Frontal projection prevents light from leaking out, so as to increase the efficiency of light use. However, the heat generated by the backlight module working for a long time will cause ...

AI Technical Summary

Problems solved by technology

However, the heat generated by the backlight module working for a long time will cause thermal shrinkage and deformation of the reflective film. At the same time, the reflective film in the backlight module is generally fixed by bonding light-shielding glue on the edges of both sides. The space above the reflective film is insufficient, resulting in reflection. The membrane is prone to adverse phenomena such as membrane arches, wrinkles, and delamination, which seriously affect the display effect

In the traditional backlight module structure, the reliability of the optical film is not considered in the design of the structure

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