Touch screen structure with 3D screen printing effect and light guide effect

Abstract

The invention relates to a touch screen structure with the 3D screen printing effect and the light guide effect. The touch screen structure with the 3D screen printing effect and the light guide effect sequentially comprises a protective layer, a polyester film layer and an ITO conductive film. A 3D wiredrawing decorative film layer is arranged on the position of a non-display area of a non-conductive face of the polyester film layer. A light-transmitting ink layer is arranged in the button position of the non-conductive face of the polyester film layer, and a light guide ink layer is arranged in the button position of the conductive face of the polyester film layer. According to the touch screen, ink does not need to be printed on the outermost protective layer in a silk screen mold, limitations of a panel adopted for the protective layer are reduced, and the touch screen structure can have the advantages of being rich and colorful in appearance and high in flexibility of appearance design. A light guide panel does not need to be arranged on a button area, and thus the thickness of the product can be further reduced. The decorative film layer is arranged below the protective layer, and thus the appearance of the product can not be affected after the product is used for a long time. The screen printing yield is relatively high, and compared with a touch screen panel requiring that buttons have the light guide effect, the touch screen structure with the 3D screen printing effect and the light guide effect is simple in manufacturing process and high in yield.

Description

technical field [0001] The present invention relates to a touch screen structure, more specifically, relates to a touch screen structure with 3D silk screen effect and light guide effect. Background technique [0002] The touch screen in the prior art is made of glass, PMMA (polymethyl methacrylate, acrylic) or other composite board materials, and it is difficult to form a decorative mask with a 3D drawing effect on the surface. In addition, silk screen printing ink is usually required on the protective layer of the touch screen, and the yield rate of silk screen printing is low with this technical solution. [0003] For the touch screen of the prior art, if it is required to have a light guide effect in the key area, a light guide plate must be pasted directly under the key. Compared with the present invention, there is an additional lamination process and die-cutting process. For example, Chinese utility model 201220053999.2 discloses a full lamination structure of a mobi...

AI Technical Summary

Problems solved by technology

[0002] The touch screen of the prior art uses glass, PMMA (polymethyl methacrylate, acrylic) or other composite board materials, and it is difficult to form a decorative mask with a 3D drawing effect on the surface

Moreover, it is usually necessary to screen-print ink on the protective layer of the touch screen, and the screen-printing yield rate of this technical solution is low

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