Die-cutting method and equipment for OCA optical film used for under-screen camera

Abstract

The invention discloses a die-cutting method and equipment for an OCA optical film used for an under-screen camera. The method comprises: laminating the OCA optical adhesive with the original light film on the surface and the original heavy film on the bottom on a carrier tape , and exclude the original light film on the OCA optical adhesive; Die-cut the shading tape, cut out the shading area, and remove the waste of the shading tape; attach the die-cut shading tape to the predetermined shading position on the OCA optical adhesive, and Exclude the release film on the shading tape; die-cut the OCA optical adhesive, cut out the product shape, and remove the frame waste; provide the shipping light film, remove the protective film on the shipping light film, and stick the shipping light film It is combined on the OCA optical adhesive to form the final patch; the final patch is die-cut, the finished product is cut out, and the waste is discharged. The invention realizes the shading of the designated position by cutting the shading area on the shading tape, which is convenient for cutting the camera part after the patch assembly, cutting the position of the camera hole, and realizing the assembly of the camera under the screen.

Description

technical field [0001] The invention relates to the technical field of OCA (Optically Clear Adhesive, optically transparent adhesive), in particular to a die-cutting method and equipment for an OCA optical film used for an under-screen camera. Background technique [0002] OCA optical glue is one of the raw materials for important touch screens. The optical acrylic adhesive is made without a base material, and then a layer of release film is attached to the upper and lower base layers to form a double-sided adhesive tape without a base material. It is the best adhesive for touch screen. [0003] OCA optical glue is divided into two categories, one is resistive, and the other is capacitive. The resistive optical glue can be divided into 50um and 25um according to the thickness, and the capacitive optical glue is divided into 100um and 175um. , 200um, 250um. [0004] The main uses of OCA optical glue include: electronic paper, projection screen assembly, display assembly, l...

AI Technical Summary

Problems solved by technology

[0005] The existing OCA optical adhesive structure is a single-layer whole piece of high-transparency product, with a light transmittance of over 92%. With the continuous development of technology, the camera under the screen has gradually become the mainstream. For smart devices that use the camera under the screen solution, in the After the screen is assembled, it is necessary to cut the part of the screen corresponding to the camera again. After cutting, there is light leakage on the edge of the material, and the cutting edge needs to be shading. The traditional display screen uses shading ink on the four sides for shading treatment. The current under-screen camera is located inside the display screen, and the traditional ink printing process products can no longer meet the demand. Therefore, it is necessary to perform light-shielding treatment at the designated position of the OCA optical glue and then attach it to the position that needs to be light-shielded. The traditional OCA optical film processing method and equipment can no longer meet the demand

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