Deformation-resistant optics reflecting film, liquid crystal display device and LED lighting equipment

Abstract

The invention provides a deformation-resistant optics reflecting film, a liquid crystal display device using the reflecting film and LED lighting equipment using the reflecting film, wherein the reflective film comprises a reflecting layer; and the back surface of the reflecting layer is adhered with a deformation-resistant layer, the thickness of deformation-resistant layer is 0.2-1.5 times of that of the reflecting layer, and the coefficient of thermal expansion of the deformation-resistant layer is 0.5-2 times of that of the reflecting layer. In the invention, a white film with a multi-cellular structure in the interior of the optics reflecting film is bonded with the deformation-resistant layer with the coefficient of thermal expansion similar to that of the white film and low cost, thereby keeping the high deformation resistance of the optics reflecting film, simultaneously reducing the cost of the optics reflecting film and having simple operation.

Description

technical field [0001] The invention relates to an optical film, in particular to an anti-deformation optical reflection film and a liquid crystal display device and LED lighting equipment using the film. Background technique [0002] Liquid crystal display devices are widely used in mobile communication equipment display devices, notebook computers, desktop computers, large-size LCD TVs and LED lighting equipment. Among them, optical films play an important role in the composition of liquid crystal display devices. Generally, 5- There are 7 optical films, and optical reflective film is one of the most important optical films. In recent years, liquid crystal display devices have developed rapidly, and higher requirements are also put forward for optical reflective films used in liquid crystal display devices. [0003] The liquid crystal display device mainly includes a liquid crystal panel, a light source, an optical reflective film, a light guide plate, an optical diffusio...

AI Technical Summary

Problems solved by technology

Most of the existing optical reflective films are white films with a microporous structure inside. The optical reflective films are prone to deformation under long-term irradiation of light sources, thus affecting the performance of liquid crystal display devices.

In practical application, the deformation resistance of the optical reflective film can be improved by increasing the thickness of the white film itself, but this will bring two problems: 1. The manufacturing process of this white film with a microporous structure inside is relatively complicated, and the cost is relatively high. Higher, increasing the thickness of the white film will inevitably bring higher costs; 2. The current equipment and technology are still relatively difficult to make a white film with a thickness of more than 188 microns with a microporous structure inside. Therefore, by increasing the white film itself The thickness of the optical reflective film is limited to improve the deformation resistance of the optical reflective film, especially for large-size liquid crystal displays, due to the high power of the internal light source, the required optical reflective film is also thicker, if the thickness of the white film itself is increased To improve its deformation resistance, it will lead to an increase in the cost of the optical reflective film and difficulties in the manufacturing process

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