Three-dimension curve surface touch control panel

Abstract

The invention discloses a three-dimension curve surface touch control panel. The surface of a protection panel of the three-dimension curve surface touch control panel is provided with a three-dimension curve surface and is pasted with an optical film, the optical film is in contact with a bending part formed by the three-dimensional curve surface of the protection panel, and at least one hole is formed in a position, corresponding to the bending part of the three-dimensional curve surface, of the optical film, so the region becomes a stress release region, and the air bubble problem and the peeling phenomenon caused by stress action during the curve surface pasting can be respectively solved and avoided, wherein the holes at the bending part of the optical film can be designed to penetrate or not penetrate through the optical film, in addition, the optical film is of a one-layer or multilayer film structure and can comprise a touch control sensing film, optical cement or anti-explosion film, and in addition, the three-dimension curve surface touch control panel is applicable to protection panels with three-dimensional curve surfaces such as inner curve surfaces, outer curve surfaces or irregular curve surfaces.

Description

technical field [0001] The invention relates to a touch panel, in particular to a three-dimensional curved touch panel. Background technique [0002] The composition of the touch panel is generally a protective glass (Cover lens) and a touch sensing film (Sensor film). In terms of safety, an explosion-proof film ( ASF) to prevent glass splash. When three-dimensional (3D) curved glass is used for the cover glass of the touch panel, compared with the flat cover glass, the appearance design of the three-dimensional curved glass has a streamlined and three-dimensional texture, and the three-dimensional touch on the touch panel is excellent, and the three-dimensional curved surface Glass allows for magnification and includes benefits such as a bezel-less housing design. [0003] However, if the cover glass has a three-dimensional curved surface, the attachment position of the optical adhesive (such as OCA or OCR) and the optical film (such as touch sensing film, explosion-proof...

AI Technical Summary

Problems solved by technology

[0004] figure 1 After the touch sensing film 20, 30 or the explosion-proof film and other optical films are bonded and fixed with the three-dimensional curved surface protection panel 10 through the optical glue 40, the edge of the film material will be bent at the bonding point of the curved surface. Please refer to figure 2 sectional view of and Figure 3A , 3B At this time, the stress will be concentrated at the bending point. If it is left standing for a long time or encounters thermal expansion and contraction, it will easily cause air bubbles, or cause the phenomenon of peeling (Peeling) of the film rebound.

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