Forming mechanism of single-sheet double-sided coated optical film

Abstract

The invention discloses a shaping mechanism for a single-chip double-face coating-type optical film, wherein the shaping mechanism comprises a first roller group, a press fit shaping unit, a positioning mark, and a positioning sensor. The first roller group comprises a first glue applicator; the press fit shaping unit is arranged behind the first roller group and comprises a press fit base and a bearing platform both which are arranged at an interval from top to bottom; the bearing platform is used for an optical film base material to pass through and bearing the optical film base material, the press fit base can generate a press fit action towards the bearing platform; the press fit face of the press fit base is provided with a second optical layer which aligns at the first optical layer of the first surface; the positioning mark is formed on the first surface of the optical film base material and at the specified interval of the first optical layer; the positioning sensor is arranged on at least one part of the press fit base of the press fit shaping unit and at the specified interval of the second optical layer so that the set positioning mark of the optical film base material is detected to obtain the precision position and time point for performing the press fit action by the press fit base, thus two optical layers precisely aligned can be formed on two opposite surfaces of the single optical film base material.

Description

Technical field [0001] The invention relates to an optical film forming mechanism, in particular to an innovative optical film forming mechanism capable of achieving single-chip double-sided coating and precise alignment. Background technique [0002] Optical film (such as the surface layer film of the glass substrate of the liquid crystal display screen) has a composite coating structure, and its manufacturing and molding methods are usually manufactured and molded by a roller-type coating and molding mechanism. The roller-type coating and molding mechanism is mainly manufactured by It is composed of unit rollers that can roll relatively and a gluing device through which glue is supplied. [0003] The roller-type coating and molding mechanism described in the previous paragraph basically has no problems when manufacturing and molding general single-layer optical films. However, because the current optical films will have more complex composite layers or more depending on the requi...

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Problems solved by technology

[0003] The roller-type coating forming mechanism mentioned in the previous paragraph basically does not have any problems when manufacturing and forming ordinary single-layer optical films, but because the current optical films will have more complex composite layers or multiple The appearance of multi-layer composite structure, for example, the optical film attached to the liquid crystal display is often composed of a multi-layer optical base layer, a circuit structure layer (such as nano-silver) and a packaging layer; for this kind of multi-layer composite optical film If the product is manufactured by the above-mentioned roller-type coating forming mechanism, there are considerable problems and disadvantages; the general reason is that during the multi-layer coating operation of the simple roller-type coating forming mechanism, its base material is often due to The distance pulled by the roller is too long, resulting in deformation. As a result, the alignment accuracy between adjacent adhesive layers is often difficult to meet the industry's ideal quality requirements

[0004] Although, for the optical film structure of the multi-layer composite form, there are also related industries that use double substrates to apply adhesive layers separately and then laminate them into a single optical film structure; however, this method requires additional In addition to the disadvantages of base material consumption and cost, there are also problems and disadvantages such as high error rate and alignment accuracy difficult to meet the industry's ideal quality in the double base material lamination process, and the manufacturing molding process is even more seriously lacking in efficiency. It is indeed an important technical topic worthy of further consideration and improvement by the industry

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