Method for making microstructural optical plate with high transferring rate and the molding apparatus thereof

Abstract

The invention provides a method for making microstructural optical plate with high transferring rate and a molding apparatus thereof. The method is to press the high-temperature resin raw material out from one die head and then fill the raw material into two partition pressing rollers to roll down the resin raw material, thereby making the resin raw material be smooth on surface. Then, the resin raw material is rolled by one transferring roller and is filled with photosensitive resin material that can be solidified after being exposed to the sunlight, thus to flow between the resin raw material and the surface of the transferring roller, with sunlight being provided. By properly adjusting the temperature of the material pressed out from the die head and the temperature of the resin raw material when the resin raw material contacts with the rollers, the resin raw material can maintain better high-temperature flexibility, thus to coat the wheel surface of the transferring roller in a bending manner. Combined with the photosensitive resin material having high fluidity and molded after solidifying when being exposed to sunlight, the microstructural optical plate with high transferring rate can be obtained.

Description

technical field [0001] The present invention relates to a manufacturing method of a microstructured optical plate and its molding device, in particular to a diffuser plate, a light guide plate, or other optical plates with different optical effects, and is a microstructured optical plate with a high transfer rate. A method of manufacturing a board and a forming device thereof. Background technique [0002] refer to figure 1 , in Japanese Laid-Open Patent Case 2001-113538, discloses a kind of technology that forms the microstructure on the optical film, and it is to pull out the optical film base material 1 that is wound into roll shape, and in this The surface of the substrate 1 is coated with a layer of UV-curable resin 10, and then a light device 12 is used to irradiate light while passing through a transfer roller 11 with a microstructure pattern on the surface, and the subsequent step of calendering film is added (Fig. not shown) to form a multilayer optical film with ...

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Problems solved by technology

[0004] However, if the optical plate in the back light module of a general liquid crystal display (Liquid Crystal Display), such as a light diffusion plate and a light guide plate, if microstructures are to be formed on the surface, the formed optical plate cannot be bent directly. Folding is fully covered on the surface of the roller in a curved form. Therefore, the shape of the microstructure actually transferred on the surface of the optical plate is different from the predetermined shape, which affects the optical properties. This is the insufficient transfer rate. Therefore, the aforementioned patent application The technology disclosed in 2001-113538 for manufacturing optical film surface microstructures is not suitable for making optical plates with surface microstructures

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