JP2015041223A - Electrostatic switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrostatic switch capable of improving the light emission quality of a light emission region disposed on an operation surface while stabilizing the detecting sensitivity of an operation.SOLUTION: An electrostatic switch 70 includes: a base material panel 10 formed of translucent materials; and a film sensor 20 for detecting an operation to a switch operation surface 11 formed on the base material panel 10. A light shielding layer 30 is formed on a rear face 10b of the base material panel 10. A transmission opening 31 corresponding to the shape of the light emission region 11a of the switch operation surface 11 is disposed in the light shielding layer 30. The transmission opening 31 is filled with a diffused transmission layer 40 coating the light shielding layer 30. The diffused transmission layer 40 is configured to exert a diffusion action by being colored, and formed with a smoothed sticking surface 41 to which the film sensor 20 is stuck.

Description

  The present invention relates to an electrostatic switch that detects an operation on an operation surface.

  Conventionally, for example, Patent Document 1 discloses a touch panel in which a decorative portion is formed by printing or the like on the surface of a transparent cover base material formed of a translucent material as a kind of electrostatic switch. In such a touch panel, in order to stabilize the sensitivity for detecting a finger, it is desirable that the detection means such as a touch panel sensor be attached to a smooth surface with reduced steps. Therefore, in the touch panel sensor of Patent Document 1, a colorless and transparent overcoat layer is formed on the base material so as to cover the decorative portion. The detecting means is attached to the smoothed overcoat layer.

JP 2012-73726 A

  In recent years, electrostatic switches are strongly required to form a light emitting region on the operation surface that emits light by transmitting light from a light source. The inventor of the present invention has conceived that a light shielding layer for forming a background portion of the light emitting region is provided on the back surface of the substrate. Furthermore, the inventor of the present invention tried to form an overcoat layer as disclosed in Patent Document 1 so as to cover the light shielding layer, and affix the detection means to the overcoat layer.

  However, when the overcoat layer is formed, the entry of minute foreign matters, the generation of minute bubbles, etc. may inevitably occur. Therefore, if the overcoat layer is formed in the form in which the light emitting region is provided, the unevenness of illumination is caused in the light emitting region due to the fact that the progress of light is hindered by the bubbles and the foreign matters. For this reason, even if the detection sensitivity of the operation by the detection means can be stabilized, the light emission quality of the light emitting region can be impaired.

  The present invention has been made in view of the above-described problems, and an object thereof is to improve the light emission quality of the light emitting region provided on the operation surface while stabilizing the detection sensitivity of the operation by the detection means. It is to provide a possible electrostatic switch.

  In order to achieve the above-mentioned object, the first invention provides an electrostatic for detecting an operation on the operation surface (11) provided with a light emitting region (11a) that emits light by transmitting light from the light source (60). A switch, which is formed of a light-transmitting material and forms an operation surface, and is disposed on the back side of the operation surface of the substrate panel and detects an operation on the operation surface. A means (20), an opening (31) corresponding to the shape of the light emitting region is formed, a light shielding layer (30) formed on the back surface (10b) of the base panel for shielding light from the light source, and the opening are filled A diffused transmission layer (40) that forms a pasting surface (41) to which the detection means is pasted while covering the light shielding layer, is colored so as to diffuse light from the light source, and transmits light from the light source; An electrostatic switch comprising

  In the present invention, light from the light source is diffused when passing through the colored diffuse transmission layer filling the opening of the light shielding layer. Therefore, even when bubbles and foreign matters are mixed into the diffuse transmission layer, the illumination unevenness in the light emitting region due to the bubbles and foreign matters can be made inconspicuous by the diffusion action of the diffuse transmission layer. In addition, since the light shielding layer is covered with the diffuse transmission layer, the sticking surface to which the detection means is attached can be smooth with reduced steps. According to the above, it is possible to improve the light emission quality of the light emitting region while stabilizing the sensitivity of the operation detection by the detection means.

  In addition, the second invention is an electrostatic switch that detects an operation on the operation surface (11) provided with a light emitting region (11a) that emits light by transmitting light from the light source (60), and is a transparent switch. A base panel (10) that is formed of a light-sensitive material and forms an operation surface; and a detection means (220) that is disposed on the back side of the operation surface of the base panel and detects an operation on the operation surface; An opening (31) corresponding to the shape of the light emitting region is formed, a light shielding layer (30) formed on the back surface of the base panel for shielding light from the light source, and colored to diffuse the light from the light source, and The light from the light source is formed by forming a diffusion transmission layer (240) that transmits light from the light source and fills the opening, and a sticking surface (281) to which the detection means is attached by covering the light shielding layer and the diffusion transmission layer. A regular transmission layer (280) for regular transmission; The electrostatic switch comprises a.

  Also in this invention, since at least the opening of the light shielding layer is filled with the colored diffuse transmission layer, the light from the light source is diffused when passing through the diffuse transmission layer. Therefore, the illumination unevenness of the light emitting region due to the bubbles and foreign matters can be made inconspicuous by the diffusion action by the diffusion transmission layer. In addition, since the regular transmission layer is formed so as to cover the light shielding layer and the diffuse transmission layer, the application surface to which the detection means is applied can be smooth with reduced steps. According to the above, it is possible to improve the light emission quality of the light emitting region while stabilizing the sensitivity of the operation detection by the detection means.

  The third invention is an electrostatic switch that detects an operation on the operation surface (11) provided with a light emitting region (11a) that emits light by transmitting light from the light source (60), and transmits light. A base panel (310) that is made of a conductive material and forms an operation surface; a detection means (20) that is disposed on the back side of the operation surface of the base panel and detects an operation on the operation surface; An opening (331) corresponding to the shape of the region, and a light shielding layer (330) that is formed on the back surface (310b) of the base panel and shields light from the light source. A convex portion (316) that forms a pasting surface (335) to which the detecting means is pasted together with the light shielding layer by filling the opening by projecting from the back surface to a height (h) corresponding to the thickness (t) of It is characterized by that.

  In this invention, the opening of the light shielding layer is filled with a convex portion protruding from the back surface of the base panel. Since the height of the convex portion corresponds to the thickness of the light shielding layer, the sticking surface formed by the convex portion and the light shielding layer can be smooth with a reduced level difference. In addition, since the colorless and transparent layer can be omitted if the opening is filled with the convex portion, uneven illumination in the light emitting region due to bubbles and foreign matters cannot occur. Therefore, it is possible to improve the light emission quality of the light emitting region while stabilizing the sensitivity of the operation detection by the detection means.

  Note that the reference numbers in the parentheses are merely examples of correspondence with specific configurations in the embodiments described later in order to facilitate understanding of the present invention, and limit the scope of the present invention. It is not intended.

It is a front view of the electrostatic touch panel provided with the electrostatic switch by 1st embodiment of this invention. It is a figure which shows the structure of an electrostatic switch, Comprising: It is the II-II sectional view taken on the line of FIG. It is a figure which shows the process of manufacturing an electrostatic switch. It is a figure which shows the structure of the electrostatic switch by 2nd embodiment. It is a figure which shows the process of manufacturing the electrostatic switch by 2nd embodiment. It is a figure which shows the structure of the electrostatic switch by 3rd embodiment. It is a figure which shows the process of manufacturing the electrostatic switch by 3rd embodiment.

  Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration is described in each embodiment, the configuration of the other embodiment described above can be applied to the other part of the configuration. Moreover, not only the combination of the configurations explicitly described in the description of each embodiment, but also the configuration of a plurality of embodiments can be partially combined even if they are not explicitly described, as long as there is no problem in the combination. And the combination where the structure described in several embodiment and the modification is not specified shall also be disclosed by the following description.

(First embodiment)
The electrostatic touch panel 100 shown in FIGS. 1 and 2 is provided with a plurality of electrostatic switches 70 according to the first embodiment of the present invention. The electrostatic touch panel 100 is installed on an instrument panel or the like in the passenger compartment with each electrostatic switch 70 exposed so that a contact operation with the finger F of the operator is possible. For example, when an operator touches the switch operation surface 11 of a specific electrostatic switch 70 with a finger F, an air conditioner mounted on the vehicle is activated. Then, the operation state of the air conditioner is displayed on the liquid crystal display unit 13.

  The electrostatic touch panel 100 includes a film sensor 20, a base panel 10, a light shielding layer 30, a diffuse transmission layer 40, and the like.

  The film sensor 20 is disposed on the back side of the base panel 10 and detects an operation on each switch operation surface 11. The film sensor 20 is formed in a thin film shape by an insulating film 21 and an electrode 22. The insulating film 21 is made of, for example, a transparent polyimide resin. On the other hand, the electrode 22 is formed of a conductive material such as copper formed in a film shape. The electrode 22 is disposed on the back side of the switch operation surface 11 and overlaps the switch operation surface 11 in the thickness direction of the film sensor 20. A plurality of openings 23 for transmitting light are formed in the electrode 22. The electrode 22 is connected to the detection circuit 50.

  The detection circuit 50 detects a capacitance value generated between the electrode 22 and the finger F. The detection circuit 50 determines whether or not there is an operation on the switch operation surface 11 based on whether or not the capacitance value acquired from the electrode 22 exceeds a preset threshold value. This threshold value is set in advance by experiment or calculation so that the determination of “there is a touch operation” is made when the finger F touches the switch operation surface 11.

  The film sensor 20 is provided with an adhesive layer 29 shown in FIG. The adhesive layer 29 is a so-called double-sided tape that is formed in a sheet shape of about 50 μm and can adhere both surfaces to other objects. The adhesive layer 29 is a so-called base material-less double-sided tape having no base material, and is formed of a translucent acrylic pressure-sensitive adhesive. The adhesive layer 29 has the insulating film 21 bonded to a pasting surface 41 to be described later.

  The base panel 10 shown in FIGS. 1 and 2 is formed of a resin material having translucency and colored in gray or the like. The base panel 10 is provided with a liquid crystal opening 14 for enabling the operator to visually recognize the liquid crystal display unit 13. Further, an outer surface (hereinafter referred to as “exposed surface 10 a”) exposed so that the finger F can come into contact with the base panel 10 forms the above-described switch operation surface 11. Each switch operation surface 11 is provided with a light emitting region 11a that emits light by transmitting light. Each light emitting area 11a forms characters and pictograms indicating functions assigned to each electrostatic switch 70 to the operator, and a boundary line indicating the range of each electrostatic switch 70 to the operator.

  As shown in FIG. 2, the light source 60 that emits light from the light emitting region 11 a is provided on the back surface 10 b side of the base panel 10. The light source 60 is located on the opposite side of the switch operation surface 11 with the film sensor 20 interposed therebetween. The light source 60 is, for example, a light emitting diode or the like, and radiates light transmitted through the light emitting region 11a toward the opposing electrostatic switch 70.

  The light shielding layer 30 shown in FIGS. 2 and 3A is formed so as to cover the back surface 10 b of the base panel 10. The light shielding layer 30 is formed by curing a paint applied in a film shape. The coating material forming the light shielding layer 30 is, for example, black, and has a light shielding property. Thereby, the light shielding layer 30 can shield the light from the light source 60. The light shielding layer 30 forms a background portion surrounding the light emitting region 11a on the switch operation surface 11 shown in FIG. As shown in FIGS. 2 and 3 (B), a plurality of transmission openings 31 are formed in the light shielding layer 30. The opening shape of each transmission opening 31 corresponds to the shape of each light emitting region 11a. The transmissive opening 31 is formed by removing the paint in a range overlapping the light emitting region 11a in the light shielding layer 30 by laser light irradiation.

  The diffuse transmission layer 40 shown in FIGS. 2 and 3 (C) is formed by curing a paint applied in a film shape so as to cover the light shielding layer 30 in which each transmission opening 31 is formed. The diffuse transmission layer 40 can fill each transmission opening 31 by entering each transmission opening 31. The diffuse transmission layer 40 forms a smoothed pasting surface 41. As shown in FIG. 3D, the adhesive layer 29 is attached to the attaching surface 41, whereby the film sensor 20 is held by the diffuse transmission layer 40 formed integrally with the base panel 10.

  The coating material forming the diffuse transmission layer 40 shown in FIG. 2 contains a colorant such as white. The colored paint enters into each transmission opening 31 by application to the light shielding layer 30, and is cured in the shape of each light emitting region 11a. A portion of the diffuse transmission layer 40 filled in each transmission opening 31 transmits the light from the light source 60 toward the base panel 10 while diffusing the light from each light transmission opening 31.

  According to the above configuration, light from the light source 60 is transmitted through the gaps between the electrodes 22 in the film sensor 20, the adhesive layer 29, the diffusive transmission layer 40, and the base panel 10 in order, and from each light emitting region 11a. It is emitted toward. Therefore, by turning on the light source 60, it is visually recognized that the light emitting region 11a is turned on in the switch operation surface 11 at a position facing the light source 60.

  In the first embodiment described so far, the light from the light source 60 is diffused when passing through the diffusion transmission layer 40 filling the transmission opening 31. Therefore, even when bubbles and foreign matters are inevitably mixed in the diffuse transmission layer 40, the illumination unevenness of the light emitting region 11a due to the bubbles and foreign matters is inconspicuous due to the diffusion action of the diffuse transmission layer 40. Can be done. In addition, due to the configuration in which the diffuse transmission layer 40 covers the light shielding layer 30, the pasting surface 41 is made smooth with reduced steps. According to the above, since the distance between the electrode 22 of the film sensor 20 and the switch operation surface 11 is less likely to vary, the electric charge accumulated between the finger F that contacts the switch operation surface 11 and the electrode 22 is also stable. Can be Therefore, it is possible to improve the light emission quality of the light emitting region 11a while stabilizing the sensitivity of detection of the contact operation by the film sensor 20.

  In addition, in 1st embodiment, the sticking surface 41 smoothed by formation of the light shielding layer 30 and the diffuse transmission layer 40 can be obtained. Therefore, the detection sensitivity can be stabilized and the light emission quality can be improved without increasing the number of processing steps in the form in which the light shielding layer 30 is covered with the colorless and transparent cover layer.

  In addition, since the base panel 10 of the first embodiment is a colored light-transmitting material, the base panel 10 can also exhibit a diffusing action in the same manner as the diffuse transmission layer 40. Therefore, the illumination unevenness of each light emitting area 11a can be made less noticeable. Furthermore, since the base panel 10 is colored in gray, it is difficult for the operator to distinguish the light emitting region 11a from the background portion when the light source 60 is off. For this reason, by turning on the light source 60, it is possible to realize an impressive effect such that each light emitting region 11a appears. Such improvement in appearance makes it possible to increase the product power of the electrostatic touch panel 100.

  In the first embodiment, the switch operation surface 11 corresponds to the “operation surface” recited in the claims, the film sensor 20 corresponds to the “detecting means” recited in the claims, and the transmission opening 31. Corresponds to the “opening” recited in the claims.

(Second embodiment)
The second embodiment of the present invention shown in FIGS. 4 and 5 is a modification of the first embodiment. In the electrostatic switch 270 according to the second embodiment, as shown in FIGS. 5A and 5B, the coating material that forms the diffuse transmission layer 240 is the light shielding layer 30 formed on the back surface 10 b of the base panel 10. Each transmission opening 31 is applied so as to individually cover it. This paint enters into each transmission opening 31 and hardens in the shape of each light emitting region 11 a to become a diffusion transmission layer 240. The diffuse transmission layer 240 individually fills each transmission opening 31 and does not cover the entire light shielding layer 30 as in the first embodiment.

  In addition, in the second embodiment, a regular transmission layer 280 shown in FIGS. 4 and 5C is provided. The regular transmission layer 280 is formed by curing a colorless and transparent paint applied in a film shape. The regular transmission layer 280 covers the light shielding layer 30 and the diffuse transmission layer 240. The regular transmission layer 280 forms a smoothed pasting surface 281. As shown in FIG. 5D, the film sensor 220 is attached to the attaching surface 281. The regular transmission layer 280 transmits the light from the light source 60 shown in FIG. 4 to the light shielding layer 30 and the diffuse transmission layer 240 without causing substantial diffusion.

  The electrode 222 of the film sensor 220 is formed in a thin film shape using a light-transmitting conductive material such as indium tin oxide (ITO) and a transparent conductive polymer. Similarly to the electrode 22 (see FIG. 2) of the first embodiment, the electrode 222 is disposed on the back surface side of the switch operation surface 11 so as to overlap the operation surface 11 and is connected to the detection circuit 50.

  According to the above configuration, light from the light source 60 is transmitted through the insulating film 21 and the electrode 222, the adhesive layer 29, the regular transmission layer 280, the diffuse transmission layer 240, and the base panel 10 in this order, and from each light emitting region 11a. It is emitted toward the operator. Therefore, also in the second embodiment, by turning on the light source 60, it is visually recognized that the light emitting region 11a is turned on in the switch operation surface 11 at a position facing the light source 60.

  In the second embodiment described so far, similarly to the first embodiment, at least the transmission opening 31 is filled with the colored diffuse transmission layer 240. Therefore, the diffuse transmission layer 240 exerts the effect of diffusing the light from the light source 60. As described above, even when bubbles and foreign matters are mixed in at least one of the diffuse transmission layer 240 and the regular transmission layer 280, the illumination unevenness of the light emitting region 11a due to these bubbles and foreign matters can be made inconspicuous. In addition, since the pasting surface 281 formed by the regular transmission layer 280 is smooth with a reduced level difference, the distance between the electrode 222 and the switch operation surface 11 is difficult to vary. Therefore, it is possible to improve the light emission quality of the light emitting region 11a while stabilizing the sensitivity of detection of the contact operation by the film sensor 220.

  In addition, in the second embodiment, since the diffuse transmission layer 240 can be formed thin, the light emitted from the light emitting region 11a can be strengthened. According to the above, since the light emission luminance of each light emitting region 11a can be further increased, the light emission quality of the light emitting region 11a is further improved. In the second embodiment, the film sensor 220 corresponds to “detecting means” recited in the claims.

(Third embodiment)
The third embodiment of the present invention shown in FIGS. 6 and 7 is another modification of the first embodiment. In the electrostatic switch 370 according to the third embodiment, the configuration corresponding to the diffuse transmission layer 40 (see FIG. 2) of the first embodiment is omitted. On the other hand, a plurality of convex portions 316 are formed on the base panel 310 according to the third embodiment. Each convex portion 316 protrudes from the back surface 310 b of the base panel 310 toward the film sensor 20. As shown in FIG. 7A, a mold 391 for molding the base panel 310 is provided with a concave groove 393 having a shape that complements the convex portion 316. According to molding using such a mold 391, each projection 316 can be formed on the base panel 310 without increasing the number of processing steps.

  As shown in FIG. 7B, the shape of each of the formed convex portions 316 corresponds to the shape of each light emitting region 11a. In these convex portions 316, the height h from the back surface 310b to the top surface 317 corresponds to the thickness t of the light shielding layer 330 shown in FIG. 7C, and is substantially the same as the thickness t. . The light shielding layer 330 is formed on the back surface 310b by printing. In the light shielding layer 330, a transmission opening 331 corresponding to the shape of the light emitting region 11a is formed in advance before printing. The light shielding layer 330 is in close contact with the back surface 310b at a position where each convex portion 316 enters into each transmission opening 331. Thus, each convex portion 316 fills each transmission opening 331. Further, the top surface 317 forms a pasting surface 335 together with the light shielding layer 330. As shown in FIG. 7D, the film sensor 20 is affixed to the affixing surface 335.

  According to the above configuration, the light from the light source 60 shown in FIG. 6 sequentially passes through the opening 23 of the electrode 22 and the adhesive layer 29 in the film sensor 20 and then passes from the top surface 317 of the convex portion 316 to the base panel 310. Incident light is emitted from each light emitting region 11a toward the operator. Therefore, by turning on the light source 60, it is visually recognized that the light emitting region 11a is turned on in the switch operation surface 11 at a position facing the light source 60.

  In the third embodiment described so far, since the height h of the convex portion 316 and the thickness t of the light shielding layer 330 are aligned with each other, the pasting surface 335 formed by the top surface 317 and the light shielding layer 330 is It can be smooth with reduced steps. Therefore, the interval between the electrode 22 and the switch operation surface 11 is difficult to vary. In addition, if the overcoat layer is not required, illumination unevenness of the light emitting region 11a due to bubbles and foreign matters cannot occur. Therefore, it is possible to improve the light emission quality of the light emitting region 11a while stabilizing the sensitivity of operation detection by the film sensor 20.

  In addition, in the third embodiment, the shadow generated by the peripheral wall of each convex portion 316 forms the contour of the light emitting region 11a. Therefore, the light emitting region 11a in the light emitting state obtains a clear outline. According to the above, since the shape of the light emitting area 11a is easily perceived by the viewer, the display quality of the light emitting area 11a is further improved. In the third embodiment, the transmission opening 331 corresponds to an “opening” recited in the claims.

(Other embodiments)
Although a plurality of embodiments according to the present invention have been described above, the present invention is not construed as being limited to the above embodiments, and can be applied to various embodiments and combinations without departing from the gist of the present invention. can do.

  The base panel in the above-described embodiment is formed of a smoked resin material colored in gray. However, the base panel may be a colorless and transparent material as long as it is translucent, or may be colored in a specific color. Further, the material forming the base panel is not limited to the resin material, and may be appropriately changed to tempered glass or the like. Furthermore, the switch operation surface in the electrostatic switch may be a flat surface, such as a curved surface curved in a convex shape toward the operator or a curved surface curved in a concave shape depending on the shape of the finger. Also good.

  The film sensor in the said embodiment was affixed on the sticking surface with the double-sided tape. However, the structure that exhibits the function of the adhesive layer is not limited to the double-sided tape, and may be an adhesive or the like. Further, the configuration corresponding to the “detecting means” is not limited to the above-described film sensor. Any device having an electrode for detecting the capacitance generated between the finger F and the like can be appropriately employed as the “detecting means” described above.

  Although the diffuse transmission layer of the first and second embodiments is colored white, the color of the diffusion transmission layer may be changed as appropriate. Similarly, the color of the light shielding layer may be changed as appropriate. Furthermore, although the diffuse transmission layer in the first and second embodiments is formed thicker than the light shielding layer, the thickness of each layer may be changed as appropriate. Furthermore, the method of forming the diffuse transmission layer and the light shielding layer is not limited to the above-described coating and printing, and may be appropriately changed.

  In the above-described embodiment, it is assumed that an operation input to the switch operation surface is performed by an operator's finger F. However, the operation input method is not limited to the method using the finger F, and may be performed using a part other than the touch pen or the operator's finger. Even with such an input, the effect of the present invention for stabilizing the detection sensitivity can be exhibited.

  In the said embodiment, the example which applied this invention to the electrostatic switch of the electrostatic touch panel which operates the air conditioner mounted in the vehicle was demonstrated. However, the present invention is used not only for such vehicles but also for various transportation equipment and various information terminals, and the presence / absence of an operation is determined based on a change in capacitance generated between an electrode and a finger. Applicable to all electrostatic switches.

10, 310 base panel, 11 switch operation surface (operation surface), 10b, 310b back surface, 11a light emitting region, 316 convex portion, 20, 220 film sensor (detection means), 30, 330 light shielding layer, 31,331 transmission aperture (Aperture), 40, 240 Diffuse transmissive layer, 41, 281, 335 Affixed surface, 60 Light source, 70, 270, 370 Electrostatic switch, 280 Regular transmission layer, h Height of convex part, t Thickness of light shielding layer

Claims (4)

An electrostatic switch that detects an operation on an operation surface (11) provided with a light emitting region (11a) that emits light by transmitting light from a light source (60),
A base material panel (10) formed of a translucent material and forming the operation surface;
A detecting means (20) disposed on the back side of the operation surface in the base panel, and detecting an operation on the operation surface;
A light-shielding layer (30) that forms an opening (31) corresponding to the shape of the light-emitting region, is formed on the back surface (10b) of the base panel, and shields light from the light source;
An adhesive surface (41) to which the detection means is attached is formed by covering the light shielding layer while filling the opening, is colored so as to diffuse light from the light source, and transmits light from the light source. An electrostatic switch comprising: a diffuse transmission layer (40). An electrostatic switch that detects an operation on an operation surface (11) provided with a light emitting region (11a) that emits light by transmitting light from a light source (60),
A base material panel (10) formed of a translucent material and forming the operation surface;
A detection means (220) disposed on the back side of the operation surface of the base panel and detecting an operation on the operation surface;
An opening (31) corresponding to the shape of the light emitting region, and a light shielding layer (30) formed on the back surface of the base panel to shield light from the light source;
A diffuse transmission layer (240) that is colored to diffuse light from the light source and that transmits light from the light source and fills the opening;
A sticking surface (281) to which the detecting means is stuck is formed by covering the light shielding layer and the diffuse transmission layer, and a regular transmission layer (280) that transmits light from the light source in a regular direction. And electrostatic switch. An electrostatic switch that detects an operation on an operation surface (11) provided with a light emitting region (11a) that emits light by transmitting light from a light source (60),
A substrate panel (310) formed of a light-transmitting material and forming the operation surface;
A detecting means (20) disposed on the back side of the operation surface in the base panel, and detecting an operation on the operation surface;
A light shielding layer (330) that forms an opening (331) corresponding to the shape of the light emitting region, and is formed on the back surface (310b) of the base panel and shields light from the light source,
The base panel protrudes from the back surface to a height (h) corresponding to the thickness (t) of the light shielding layer and fills the opening, thereby blocking the pasting surface (335) to which the detecting means is pasted. An electrostatic switch having a convex portion (316) formed together with the layer.   The electrostatic switch according to claim 1, wherein the base panel is formed of a colored translucent material.

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