Optical film processing method for backlight source, backlight source and mobile terminal

Abstract

The invention relates to an optical film processing method for a backlight source, the backlight source and a mobile terminal, and the method comprises the steps: pre-storing the punching parameters of at least one type of optical film in punching equipment, wherein the punching parameters comprise a punching position and a punching length; conveying the optical film to be processed to a specifiedposition, and fixing the optical film relative to the body of the punching equipment; and the punching equipment carries out punching treatment on the to-be-treated optical film according to the typeof the optical film and the pre-stored punching parameters. According to the method, punching treatment is performed on at least one optical film, when the punched optical film is heated to expand, the deformation is stopped at the punching-off position, finally, the punching-off position serves as a parting line, the part, close to the LED lamp strip, of the optical film deforms, the part, awayfrom the LED lamp strip, of the optical film does not deform or only slightly deforms, and thhus the wrinkling phenomenon of the optical film is improved and the backlight effect of the backlight source is improved.

Description

technical field [0001] The present invention relates to the technical field of backlights, in particular to an optical film processing method for backlights, backlights and mobile terminals. Background technique [0002] The backlight (Back Light) is a light source located behind the liquid crystal display (LCD), and its luminous effect will directly affect the visual effect of the liquid crystal display module (LCM). Backlights are widely used in touch screens, backlights, LCD / LCM, mobile phones, tablet computers, GPS and solar cells and other industries; they are mainly composed of light sources, light guide plates, optical modules and structural parts; among them, the light sources mainly include EL, CCFL and LED backlight types; light guide plates are divided into printing, chemical etching (Etching), precision mechanical characterization (V-cut), light lithography (Stamper), internal diffusion, and hot pressing; optical dies: light-enhancing film / sheet, diffusion film...

AI Technical Summary

Problems solved by technology

[0004] The optical film will expand and deform after being subjected to high temperature. If the heated area of ​​the optical film is not fully released, it will cause wrinkling and cause poor backlight; the backlight in mobile terminals usually adopts direct backlight or side-in Type backlight, for the direct type backlight, the LED light strip is usually parallel to the short side of the optical film, and the wrinkles generated by the heating of the optical film will spread from one end of the short side to other positions, causing the entire optical Severe wrinkling of the diaphragm, resulting in poor backlight effect

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