Structure of curved capacitive touch control panel

Abstract

The invention provides a structure of a curved capacitive touch control panel, which comprises a three-dimensional curved flexible circuit board with a capacitive touch control function, a touchable three-dimensional curved glass substrate and an adhesive layer. The three-dimensional curved flexible circuit board is provided with a first curved lateral face and a first curved end face, which are formed by at least two axial arc curved moulds by means of compression molding. The three-dimensional curved glass substrate is provided with a second curved lateral face and a second curved end face, which are mutually coupled and attached into a whole corresponding to arc curved shapes of the three-dimensional curved flexible circuit board. The adhesive layer is arranged between the three-dimensional curved glass substrate and the three-dimensional curved flexible circuit board and used for bonding the three-dimensional curved flexible circuit board onto the three-dimensional curved glass substrate.

Description

[0001] This application is a divisional application with the application number 200810172344.5, the application date being October 31, 2008, and the invention titled "Method and Structure of Curved Capacitive Touch Panel". Technical field [0002] The invention relates to a curved capacitive touch panel structure, in particular to a curved capacitive touch panel structure formed by plasticizing the capacitive touch panel. Background technique [0003] There are more common flat touch panels (Touch Panels), including resistive and capacitive touch panels. Among them, the capacitive touch panel has a touch circuit, which can be exposed, developed, and etched by yellow light processes. , Stacking transparent conductive materials (Indium Tin Oxide, ITO) one by one on the surface of a transparent substrate to become a transparent capacitive touch panel; or, the touch circuit can also be a flexible circuit Board (FLEXBILPRINTED CIRCIT, FPC), the flexible circuit board is directly attach...

AI Technical Summary

Problems solved by technology

[0004] It is known that the current optoelectronic products will be advanced with curved surface design as the mainstream; therefore, when designing the product, adding some physical buttons and art seams on the surface will cause the curvature of the product surface to be uncoordinated, and increase the surface area. The difficulty of designing and manufacturing the curved surface; in addition, related technologies related to the above-mentioned curved surface products can be found in British Patent No. 1110377, Japanese Patent No. 2002341323, Chinese Patent No. 1612185 (publication number), and AU Optronics Co., Ltd. The company (AUO PTRONIC SCORP.) publicly announced and demonstrated the convex curved liquid crystal display in June 2008; however, the described technology is about the curved surface application of safety glass or LCD, and neither mentions the curved surface application of the touch panel

[0005] In view of this, in the more advanced technology, related technologies related to the design of the curved surface of the above-mentioned touch panel have been disclosed. It can be seen in US Patent No. 6,654,071, which provides a display that can be freely bent according to the curvature of the display surface. A curved flexible capacitive touch panel is used to attach to the surface of the display, so that the display has a touch function; in addition, Chinese Patent No. 1479891 (publication number) also provides a The curved capacitive touch pad is provided with a functional film between two curved rigid transparent protective plates, and has touch capability; however, the touch pad of U.S. Patent No. 6,654,071 and the touch pad of Chinese Patent No. 1,479,891 All can only be bent into a curved surface along one axis (such as the longitudinal axis or horizontal axis of the touch panel), but cannot for

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