Manufacturing method of composite membrane having height-depth-width ratio micro structures
A technology with high aspect ratio and manufacturing method, which is applied in chemical instruments and methods, lamination devices, lamination auxiliary operations, etc. Insufficient depth, etc.
Active Publication Date: 2016-11-16
BENQ MATERIALS +1
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Problems solved by technology
Therefore, using figure 1 The anti-peeping film 1 produced by the conventional embossing process shown often has poor side-view anti-peeping effect due to insufficient depth.
In order to make the plurality of groove structures 3a reach a sufficient depth, the width of the plurality of groove structures 3a must be correspondingly increased, but this design will also reduce the penetration of the anti-peeping film 1 in the vertical direction at the normal viewing angle
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[0019] In order to make the invention features, content and advantages of the present invention and the effects that can be achieved easier to understand, the present invention is hereby combined with the accompanying drawings, and is described in detail as follows in the form of embodiments, and the drawings used therein, its gist It is only for illustration and auxiliary description, not necessarily the true proportion and precise configuration of the present invention after implementation. Therefore, the proportion and configuration relationship of the attached drawings should not be interpreted or limited to the scope of rights of the present invention in actual implementation. Explain first.
[0020] Embodiments of the method for manufacturing composite membranes with high aspect ratio microstructures according to the present invention will be described below with reference to related drawings. For ease of understanding, the same components in the following embodiments are...
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Abstract
The invention provides a manufacturing method of a composite membrane having height-depth-width ratio micro structures. The manufacturing method comprises the following steps: providing an arc base having a concave surface; arranging a flexible base material on the concave surface of the arc base, smearing a curable polymer layer on the surface of the flexible base material; pre-curing the polymer layer; forming a plurality of groove structures on the polymer layer, and completely curing the polymer layer to form a composite membrane; and removing the composite membrane from the arc base, and flattening the composite membrane to form a plurality of high-depth-width ratio micro structures. A plurality of groove structures are split towards the thickness direction of the polymer layer to form a plurality of height-depth-width ratio micro structures, so that the problem of poor demolding after the impression is unlikely to occur.
Description
technical field [0001] The invention relates to a manufacturing method of a composite film with a high aspect ratio microstructure. The composite film with a high aspect ratio microstructure is applied to an anti-peeping film to provide a good anti-peeping effect at a side view angle. Background technique [0002] Due to the popularity of mobile devices, people's demand for privacy when using mobile devices in public places also increases. At present, the form of anti-peeping film is commonly used to make any mobile device have anti-peeping effect. In order to achieve good anti-peeping performance, the common method of anti-peeping film is to form many light-shielding microstructures with a certain depth on the film material. Please refer to figure 1 As shown, it is an exemplary method for fabricating the privacy film 1 using a conventional embossing process, and steps 100 to 103 are indicated by reference numerals in brackets. In the conventional imprinting process, for ...
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IPC IPC(8): B32B37/15B32B38/00B32B38/04
CPCB32B37/15B32B38/00B32B38/04B32B2038/0076B32B2038/045
Inventor 吴龙海赵士维
Owner BENQ MATERIALS