Method for manufacturing optical films with quartz powder for backlight modules

Abstract

The invention discloses a method for manufacturing optical films with quartz powder for backlight modules. The method includes manufacturing at least one platy or flaky transparent optical substrate with the thickness of 0.1-5mm; adding the natural crystalline quartz powder into printing ink or resin adhesive and forming quartz paint; coating the quartz paint on the surfaces of the transparent optical substrates in a screen printing or roller coating manner, or filling the quartz paint between two or three layers of transparent optical substrates; solidifying the quartz paint and forming the platy or flaky optical films with quartz coated layers and the thicknesses of 0.01-1mm. The method has the advantages that the platy or flaky optical films for the backlight modules can be used as light guide plates or prism sheets or diffusion sheets, and accordingly the optical brightness and the integral optical effectiveness can be improved; the backlight modules with the optical films manufactured by the aid of the method are quite applicable to liquid crystal display television sets, display screens of monitors, display screens of laptops, display screens of mobile phones, advertising illuminating lamp boxes and decorative lighting.

Description

technical field [0001] The present invention relates to a method for preparing an optical film used in a backlight module, especially by adding crystalline quartz powder to printed ink or resin glue to prepare an optical film containing quartz powder, such as a diffuser, A prism sheet, a reflection sheet, and a double-layer optical film belong to the field of optical film preparation. Background technique [0002] A general liquid crystal module mainly includes three parts, a panel module, a backlight module and a driving circuit module, wherein the backlight module has a high luminous efficiency to provide a light-emitting component of a light source. In addition, the traditional backlight module also needs a light guide plate to guide the strong light generated by the light-emitting components, so that the light can penetrate the liquid crystal module, so that the light of the backlight module can penetrate the liquid crystal module more, reduce light scattering and reduce...

AI Technical Summary

Problems solved by technology

[0004] However, the disadvantage of the above-mentioned prior art is that the reflector of this light guide plate is white, opaque, and the surface is rough, and most of the light cannot be concentrated and reflected and will be consumed, so only a small part of the light can be reflected, so that the overall light The utilization rate is very low, often resulting in insufficient brightness of the backlight module

Images