In-mold formed touch module and production method
A touch module, in-mold forming technology, applied in the direction of instrument, electrical digital data processing, data processing input/output process, etc. Application of touch panel injection molding and other issues to achieve the effect of reducing man-hours and simplifying the production process
Active Publication Date: 2012-07-18
TRENDON TOUCH TECHNOLOGY CORPORATION
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Problems solved by technology
However, it has not been applied to the in-mold injection molding manufacturing of the touch panel at present
[0005] Regarding the touch panel (Touch Panel), it has been disclosed to use Indium Tin Oxide (ITO) to make a touch sensing circuit on a glass substrate, but it has not been applied to the in-mold injection molding of the touch panel. Manufacturing
[0006] In addition, the IML technology disclosed in the aforementioned WO No.00 / 39883 patent covers and combines antennas, which cannot be used for touch control, and does not apply ITO (nano-indium tin metal oxide) to the production of inductive capacitive touch panels. , and there is no method of using conductive ink to make a push-type touch panel that can be pressed. It includes ITO and a carrier plate covered with ITO. Can it be made into an integrated one by combining in-mold injection molding technology? Touch module, so far, no one has disclosed related technologies and example applications
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[0056] In the following, the in-mold forming touch module and its production method of the present invention will be described in detail as a preferred embodiment with reference to the accompanying drawings:
[0057] figure 1 It is a three-dimensional view of an electronic product housing with a touch module, figure 2 for figure 1 cutaway diagram. Depend on figure 1 and figure 2 It can be seen that the in-mold forming touch module 10 of the present invention includes:
[0058] An adhesive film 1 has an inner surface 11 (matching image 3 shown), and an outer surface 12 for holding and touching, and at least one relative position of the inner and outer surfaces 11, 12 defines a touch area 13;
[0059] A touch circuit 2, located in the touch area 13 on the inner surface 11 of the adhesive film 1;
[0060] A molded casing 3 is combined with the inner surface 11 of the plastic mold 1 by in-mold injection, and covers the touch circuit 2 as a whole.
[0061] In a specific ...
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The invention provides an in-mold formed touch module. The in-mold formed touch module comprises an adhesive film and a molded case, wherein the adhesive film has an inner surface and an outer surface; a touch region is defined by at least one opposite position of the inner surface and the outside surface; a touch circuit is arranged in the touch region on the inner surface of the adhesive film; and the molded case is combined with the inner surface of the adhesive film in an in-mold ejection manner, and covers the touch circuit as a whole. The invention also provides a production method of the in-mold formed touch module. The method comprises applying ITO (indium tin oxide) in the touch region on the inner surface of the adhesive film, processing the ITO to form the touch circuit, placing the adhesive film in the cavity of an ejection molding machine, injecting a molding material into the cavity to form the molded case, adhering the molded case with the inner surface of the adhesive film, and covering the touch circuit with the molded case as a whole. The in-mold formed touch module provided by the invention can improve the touch sensitivity of the module and simplify the process, and has the features of thinning design.
Description
[0001] This application was filed on November 27, 2007, the application number is 200710187478.X, and it is a divisional application named "in-mold forming touch module and its production method". 【Technical field】 [0002] The invention relates to an in-mold forming touch module and a production method thereof, in particular to a production method of in-mold injection molding, covering and combining a touch panel module with an induction circuit. 【Background technique】 [0003] Known in-mold touch (In Mold Touch) is derived from a combination of in-mold injection molding technology and touch panel manufacturing technology. [0004] And known, existing a kind of technology of In Mold Label (In Mold Label, IML (Injection Molding)), such as the antenna manufacturing method of IML disclosed in WO No.00 / 39883 patent, is to print a conductive The carrier plate of the antenna circuit of the ink is implanted in the cavity of a mold, and then the molding material is injected into th...
Claims
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Inventor 李旻益
Owner TRENDON TOUCH TECHNOLOGY CORPORATION