Internal explosion-proof film for multi-curved touch display module and preparation method thereof
A touch display, multi-curved technology, used in chemical instruments and methods, synthetic resin layered products, coatings, etc. Problems such as the complete fit of the surface to achieve the effect of ensuring consistency and avoiding scratches and unevenness
Active Publication Date: 2019-07-26
HENGSHAN JIACHENG NEW MATERIAL
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Problems solved by technology
Generally speaking, PET inner explosion-proof film (for example, thinner polyester film with hardened coating on the surface) can only be used on the arc edge of plane and hyperboloid, but in the corner of the four-curved surface structure, the pull of the material The requirements for stretching and shrinkage performance are very high. The existing technology is difficult to achieve the complete bonding of PET materials and four-curved surfaces. In addition, the base material of the PET inner explosion-proof film is hard and has good stiffness. Warped, the defect rate is usually above 30% (the above defect rate data comes from a large touch screen module manufacturer in southern China)
Method used
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[0025] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.
[0026] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper surface", "lower surface", "between" and the like are all based on the orientation or positional relationship shown in the accompanying drawings, such expressions only The purpose is to simplify and facilitate the description of the present invention, but not to indicate or imply that the referred components must have a specific orientation, be constructed and operate in a specific orientation.
[0027] Such as figure 1 As shown, an internal explosion-proof film for a multi-curved touch display module, including a base film 1, an explosion-...
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Abstract
The invention discloses an inner explosion-proof film for a multi-curved surface touch control display module and a preparation method thereof, and relates to the technical field of photoelectric products. The inner explosion-proof film of the multi-curved surface touch control display module comprises a base film, an explosion-proof layer, an adhesive layer and a release film which are sequentially arranged from the bottom to the top, wherein the explosion-proof layer is an aliphatic TPU film formed on the base film by casting / coating, or an acrylic resin film formed by coating the base film with acrylic resin and performing UV curing; the adhesive layer is an acid-free pressure sensitive adhesive layer coating the surface of the aliphatic TPU film or the acrylic resin film; the release film is compounded on the acid-free pressure sensitive adhesive layer. The inner explosion-proof film for the multi-curved surface touch control display module is good in softness, has very good close-fitting performance and relatively high viscosity, and can be applied to inner explosion prevention of 2.5D and 3D curved screens.
Description
technical field [0001] The invention relates to the technical field of optoelectronic products, in particular to an inner explosion-proof film for a multi-curved touch display module and a preparation method thereof. Background technique [0002] With the popularity of electronic products, various electronic products, such as mobile phones and tablet computers, have penetrated into millions of households and become an indispensable part of daily life. In recent years, curved display screens and flexible display screens have begun to be introduced into the market. Display modules The requirement for the TP cover plate on the surface is getting thinner and thinner. In order to prevent the TP glass from breaking and splashing, the TP explosion-proof film becomes indispensable. [0003] In order to adapt to the four-curved surface display structure, various materials are constantly being used for the protection of the four-curved surface structure. At present, the manufacturers ...
Claims
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IPC IPC(8): B32B7/12B32B27/06B32B27/08B32B27/36B32B27/40B32B33/00B32B37/12
CPCB32B7/12B32B27/06B32B27/08B32B27/36B32B27/40B32B33/00B32B37/12B32B2255/10B32B2255/26B32B2307/412
Inventor 刘文亮谢金沛
Owner HENGSHAN JIACHENG NEW MATERIAL