Switch module
a switch module and switch technology, applied in the field of switch modules, can solve the problems of user error operation, reduced operability, and difficulty in slimming down the switch module, and achieve the effects of reducing manufacturing cost, reducing yield, and easy adjustmen
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first embodiment
[0039][First Embodiment]
[0040]A switch module according to a first embodiment of the present invention will be described with reference to FIG. 1A. FIG. 1A is a schematic cross-sectional view of a switch module according to the present embodiment.
[0041]
[0042]The switch module according to the present embodiment includes a transparent FPC (Flexible Printed Circuit) board 1 serving as a board; and an LED 20 serving as a light source element. The transparent FPC board 1 is disposed to face key portions 10. In addition, transparent conductive films 2 (wiring lines) and electrodes 4 are provided on a side of the transparent FPC board 1 that faces the key portions 10. Furthermore, each electrode 4 is covered with a deformable metal dome 3 (conductive switch member) which is in contact with a part of a corresponding transparent conductive film 2. In addition, at least the surfaces of the metal domes 3 are covered with a transparent dome sheet 5 (protective member). Note that the dome sheet...
second embodiment
[0067][Second Embodiment]
[0068]A switch module according to a second embodiment of the present invention will be described with reference to FIG. 1B. FIG. 1B is a schematic cross-sectional view of a switch module according to the present embodiment. Note that description of the same components as those in the first embodiment will not described here.
[0069]
[0070]The present embodiment is characterized in that the surfaces of transparent conductive films 2 are covered with transparent protective films 2a (transparent protective members). The transparent protective films 2a are formed on the transparent conductive films 2 by performing processing such as lamination, transfer, or printing on an insulating material with high transparency. With this configuration, the transparent conductive films 2 can be mechanically protected from contact, shock, etc., and thus, the durability of the switch module is improved.
[0071]In addition, since the protective films 2a are transparent, light reflec...
third embodiment
[0073][Third Embodiment]
[0074]A switch module according to a third embodiment of the present invention will be described with reference to FIG. 2A. FIG. 2A is a schematic cross-sectional view of a switch module according to the present embodiment. Note that description of the same components as those in the first and second embodiments will not described here.
[0075]
[0076]The present embodiment is characterized in that transparent conductive films 2 serving as wiring lines are jumper-connected on a transparent FPC board 1. FIG. 2A shows a state in which the transparent conductive films 2 are not all covered with transparent protective films 2a, and opening portions of transparent conductive films 2 which are partially formed are electrically connected by a jumper connection 2b by means of a transparent conductive film.
[0077]With this configuration, even when complex wiring lines are required such as two-layer wiring lines, such a case can be coped with by connecting the wiring lines ...
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