Switch

Abstract

To provide a switch which can enhance comfort in a car.SOLUTION: A switch 10 includes a touch operation part 13 which is optically transmittable and is used for touch operation to operate equipment of a vehicle, the switch being used by pasting the touch operation part 13 on a transparent member such as a glass. The touch operation part 13 includes a transparency type lighting part 21 which displays a display body corresponding to operation functions of the equipment with a light source, and a sensor sheet 22 for detecting touch operation of a user for the display body displayed on the transparency type lighting part 21. The sensor sheet 22 is disposed so as to be overlapped on the transparency type lighting part 21.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a touch-operated switch. [Background technology]

[0002] Conventionally, an overhead console attached to the ceiling of a vehicle is well known, as disclosed in Patent Document 1. In this type of overhead console, map lamps provided on the overhead console are turned on and off by operating a switch provided on the housing of the overhead console. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-70066 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, efforts have been made to improve the sense of openness inside a vehicle by extending the windshield all the way to the ceiling and enlarging the windshield. However, if a structure such as an overhead console is installed on the ceiling of the vehicle, a structure of a certain size will be placed on the ceiling. Therefore, even if the windshield is enlarged, the sense of openness inside the vehicle will be hindered. Therefore, there is a need to improve the comfort inside the vehicle by minimizing the number of structures placed on the ceiling. [Means for solving the problem]

[0005] The switch that solves the above problem has a light-transmittable touch operation unit that is touched when operating a vehicle device, and is configured to be used by attaching the touch operation unit to a transparent member of the vehicle, and the touch operation unit has a transmissive illumination unit that uses a light source to display a display corresponding to the operation function of the device, and a sensor sheet that is placed on top of the transmissive illumination unit to detect a user's touch operation on the display displayed on the transmissive illumination unit. [Effects of the Invention]

[0006] The present invention can improve the comfort inside the vehicle. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic diagram of a front interior of a vehicle having a switch according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing the configuration of a switch. [Figure 3] FIG. [Figure 4] FIG. 2 is a schematic diagram showing the arrangement positions of switches. [Figure 5] FIG. 2 is a perspective view showing the configuration of a transmissive illumination unit. [Figure 6] FIG. 2 is a schematic diagram showing an arrangement pattern of light sources. [Figure 7] FIG. 2 is an electrical configuration diagram of the switch. [Figure 8] FIG. 10 is an explanatory diagram showing a switch that has been touched; DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present disclosure will be described below. (Vehicle 1 Overview) As shown in FIG. 1, the vehicle 1 includes a transparent member 2, which is a glass 3 that separates the interior and exterior of the vehicle 1. In this example, the glass 3 is, for example, a windshield 3a disposed at the front of the vehicle interior. The glass 3 is, for example, a light-control glass that becomes transparent when electricity is applied to a light-control film sandwiched between a pair of glass materials, and becomes opaque when electricity is not applied to the light-control film. The glass 3 is, for example, an ultraviolet-blocking glass that prevents ultraviolet rays contained in sunlight from entering the vehicle interior. In this example, the windshield 3a is formed in a shape that extends to form at least a portion of the roof 4 of the vehicle 1, in order to create a sense of openness inside the vehicle.

[0009] When the vehicle 1 is equipped with an autonomous driving system that performs autonomous driving or driver assistance, the vehicle 1 is equipped with a detection unit 5 that detects the surrounding conditions of the vehicle 1. Examples of the autonomous driving system include advanced driver assistance systems (ADAS) that achieve autonomous driving levels "1" to "2." Examples of the advanced driver assistance system include adaptive cruise control, forward collision warning, collision damage mitigation braking control device, pedestrian detection, lane departure warning, lane departure prevention support system, visibility monitoring, rear cross traffic alert, driver monitoring, automatic headlamp beam adjustment, and advanced parking assist.

[0010] In this example, the detection unit 5 is disposed on the windshield 3a to monitor the situation ahead of the vehicle. Specifically, the detection unit 5 is disposed, for example, at the center of the windshield 3a in the vehicle width direction. The detection unit 5 has, for example, a camera, a sensor, a radar, etc., inside a housing 6. An inner mirror 7 is attached to the housing 6 of the detection unit 5 to enable the rear of the vehicle to be viewed from inside the vehicle.

[0011] (Switch 10) 1 and 2, a vehicle 1 is provided with a switch 10 that is used to operate a device 11 (see FIG. 1) of the vehicle 1. The device 11 that is the target of operation of the switch 10 is, for example, an interior lighting device 12 that illuminates and brightens the interior of the vehicle. The interior lighting device 12 has, for example, a room lamp function that illuminates the entire interior of the vehicle and a map lamp function that locally illuminates a predetermined position in the vehicle with directional light.

[0012] 2, the switch 10 includes a light-transmittable touch operation unit 13 that is touch-operated to operate a device 11 of the vehicle 1, and a control unit 14 that controls the switch 10. In this example, the touch operation unit 13 is an operation panel that is touch-operated to operate the device 11. The control unit 14 is a control unit that includes, for example, a processor, memory, storage, etc. The processor is, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit).

[0013] As shown in Fig. 1, touch operation unit 13 is attached to glass 3 (windshield 3a in this example) for use. Specifically, touch operation unit 13 is arranged in the center of windshield 3a in the vehicle width direction. Touch operation unit 13 includes driver's seat side touch operation unit 13a arranged closer to the driver's seat on windshield 3a, and passenger's seat side touch operation unit 13b arranged closer to the passenger's seat on windshield 3a.

[0014] The control unit 14 is disposed, for example, in a non-transparent vehicle member 15 adjacent to the glass 3. That is, the control unit 14 is not disposed in the glass 3, but in a non-transparent vehicle member 15 around the glass 3. Examples of the vehicle member 15 include a detection unit 5, which is a component of the autonomous driving system, a vehicle roof 4, and a vehicle body pillar 16. The pillar 16 is, for example, a front pillar (A-pillar) of the vehicle body.

[0015] 3, the touch operation unit 13 displays indicators 18 corresponding to the operation functions of the device 11. When the device 11 is an interior lighting device 12, the indicators 18 include a room lamp indicator 18a indicating that the touch operation unit 13 is a switch portion for a room lamp function, and a map lamp indicator 18b indicating that the touch operation unit 13 is a switch portion for a map lamp function. The indicators 18 include marks, symbols, numbers, pictures, etc.

[0016] (Touch operation unit 13) As shown in FIG. 2, the touch operation unit 13 includes a transmissive illumination unit 21 that displays a display 18 corresponding to the operation function of the device 11 using a light source 20 (see FIGS. 5 and 6), and a sensor sheet 22 that detects a user's touch operation on the display 18 displayed on the transmissive illumination unit 21. In this example, the transmissive illumination unit 21 includes a first main body 23 having a shape corresponding to the operation area of ​​the touch operation, and a first connection portion 24 extending from the first main body 23. The first main body 23 is formed, for example, in the shape of a rectangular sheet. The first connection portion 24 extends from a portion of the periphery of the first main body 23 and is formed in a strip shape. The transmissive illumination unit 21 is configured to be light transmissive and is preferably, for example, transparent.

[0017] The sensor sheet 22 has a second main body portion 25 having a shape corresponding to the operation area of ​​the touch operation, and a second connection portion 26 extending from the second main body portion 25. The sensor sheet 22 is configured to be light transmissive, and is preferably transparent, for example. The sensor sheet 22 is, for example, a capacitance sheet whose capacitance changes in response to contact with or proximity of an object (in this example, a human body). The sensor sheet 22 is arranged over the transmissive illumination unit 21.

[0018] The first body 23 of the transmissive illumination unit 21 is attached to the glass 3 by a first adhesive layer 27. The second body 25 of the sensor sheet 22 is attached to the transmissive illumination unit 21 by a second adhesive layer 28. The first adhesive layer 27 and the second adhesive layer 28 are made of a light-transmitting material. The first adhesive layer 27 and the second adhesive layer 28 are, for example, OCA (Optically Clear Adhesive). In this way, the transmissive illumination unit 21 is formed in a layered structure by stacking, from top to bottom, the sensor sheet 22, the second adhesive layer 28, the transmissive illumination unit 21, and the first adhesive layer 27.

[0019] 4, at least a part of the touch operation unit 13 is disposed so as to extend to the ceiling portion 30 of the windshield 3a. In this example, part of the upper end of the touch operation unit 13 extends to the ceiling portion 30.

[0020] (Transmissive illumination section 21) 5, the transmissive illumination unit 21 is, for example, a sheet-like transmissive film unit 32. The transmissive film unit 32 is, for example, a flexible OP film (Optical-system in Film) equipped with LEDs as the light source 20. The OP film has advantages such as being thin, allowing LEDs to be arranged at a narrow pitch, being resistant to bending and twisting, being transparent, having high on-board reliability, and being adaptable to customization.

[0021] In this example, the transmissive illumination unit 21 includes a substrate 33 that constitutes the main body of the transmissive illumination unit 21 and a protective film 34 that protects the surface of the substrate 33. The substrate 33 is provided with a plurality of LED chips 35 as light sources 20 for displaying the display 18. Examples of the LED chips 35 include small chip-shaped LEDs, mini LEDs (submillimeter light-emitting diodes) with a diameter of approximately 100 to 200 μm, and micro LEDs (micro light-emitting diodes) that are approximately 50 to 100 times smaller than mini LEDs. The protective film 34 is provided with a circuit unit 36 ​​that outputs power and drive signals to the LED chips 35. The substrate 33 is made of, for example, silicon. The substrate 33 protects the LED chips 35 and the circuit unit 36. In the transmissive illumination unit 21, the substrate 33 is fixed to the glass 3 via a first adhesive layer 27.

[0022] As shown in Fig. 6, the multiple LED chips 35 are arranged to resemble the display 18. Note that Fig. 6 illustrates an example of the arrangement of the LED chips 35 in the room lamp display 18a. When the LED chips 35 are lit, the display 18 represented by the arrangement pattern of the LED chips 35 is displayed on the touch operation unit 13. Note that although the LED chips 35 are not transparent, they are so small in size that they do not stand out given the transparency of the touch operation unit 13.

[0023] (Control unit 14) 2, the control unit 14 has an IC (Integrated Circuit) 39 of the switch 10 and a substrate 40 on which the IC 39 is mounted. The control unit 14 is electrically connected to the transmissive illumination unit 21 and the sensor sheet 22. Specifically, the control unit 14 is connected to the transmissive illumination unit 21 by a first connection unit 24, and is connected to the sensor sheet 22 by a second connection unit 26. In this way, the first main body unit 23 of the transmissive illumination unit 21 is electrically connected to the control unit 14 via the first connection unit 24, and the second main body unit 25 of the sensor sheet 22 is electrically connected to the control unit 14 via the second connection unit 26.

[0024] An end of the first connection portion 24 of the transmissive illumination unit 21 is connected to the substrate 40 and is electrically connected to the IC 39 via a wiring pattern (not shown) of the substrate 40. An end of the second connection portion 26 of the sensor sheet 22 is connected to the substrate 40 and is electrically connected to the IC 39 via a wiring pattern (not shown) of the substrate 40. The touch operation unit 13 and the control unit 14 are disposed at positions separated from each other via the first connection portion 24 and the second connection portion 26.

[0025] Note that control unit 14 may be provided separately for driver's seat side touch operation unit 13a and passenger's seat side touch operation unit 13b. That is, control unit 14 may be provided for each of driver's seat side touch operation unit 13a and passenger's seat side touch operation unit 13b. Also, one control unit 14 may be shared by driver's seat side touch operation unit 13a and passenger's seat side touch operation unit 13b.

[0026] (Electrical configuration of switch 10) As shown in FIG. 7, the control unit 14 is electrically connected to each light source 20 of the transmissive illumination unit 21. In this example, the control unit 14 and each light source 20 are electrically connected by a first connection unit 24 of the transmissive illumination unit 21. When the lighting conditions for the display 18 (room lamp display 18a and map lamp display 18b) are met, the control unit 14 turns on the light source 20, thereby displaying the display 18 on the touch operation unit 13. Examples of lighting conditions for the display 18 include when the vehicle 1 is powered on and when a user performs an operation to request display. Examples of user operations to request display include voice input and hand waving.

[0027] The control unit 14 determines a touch operation on the surface of the touch operation unit 13 based on the detection signal of the sensor sheet 22, and controls the operation of the device 11 by outputting an operation signal Sa according to the determination result to the device 11. In this example, the control unit 14 recognizes the relationship between the position on the surface of the sensor sheet 22 and the display position of the display 18, and when a position on the surface of the touch operation unit 13 corresponding to the display 18 is touched, the control unit 14 operates the device 11 by outputting an operation signal Sa according to the touched display 18 to the device 11.

[0028] (Operation of the embodiment) Next, the operation of the switch 10 of this embodiment will be described. (Switch operation) 8, for example, to turn on the room lamp by operating the driver's seat side touch operation unit 13a, a portion of the surface of the driver's seat side touch operation unit 13a where the room lamp display 18a is displayed is touched with a finger or the like. Note that this touch operation is not limited to an operation of directly touching the driver's seat side touch operation unit 13a with a finger or the like, but may also be an operation of holding a finger close to the driver's seat side touch operation unit 13a, for example.

[0029] When the control unit 14 determines, based on a change in capacitance of the sensor sheet 22 of the driver's seat-side touch operation unit 13a, that a portion of the sensor sheet 22 corresponding to the display location of the room lamp indicator 18a has been touched, the control unit 14 outputs an operation signal Sa to the interior lighting device 12, indicating that the room lamp indicator 18a of the driver's seat-side touch operation unit 13a has been operated. When the interior lighting device 12 receives this operation signal Sa while the room lamp is turned off, the interior lighting device 12 turns on the room lamp. This causes the entire interior of the vehicle to be illuminated by the interior lighting device 12.

[0030] To turn off the illuminated room lamp, for example, the area on the surface of the driver's seat side touch operation unit 13a where the room lamp display 18a is displayed is touched again with a finger or the like. Note that this touch operation may also be an operation of directly touching the driver's seat side touch operation unit 13a or an operation of bringing a finger or the like close to the area.

[0031] When the control unit 14 determines, based on the change in capacitance of the sensor sheet 22, that a portion of the sensor sheet 22 corresponding to the display location of the room lamp indicator 18a has been touched, it outputs an operation signal Sa indicating this to the interior lighting device 12, just as in the case of a lighting operation. When the interior lighting device 12 receives this operation signal Sa when lighting the room lamp, it turns the room lamp off. Through the above operation, the touch-operable switch 10 switches the interior lighting device 12 on and off.

[0032] (Structural advantages of Switch 10) Conventionally, an overhead console having lamp components and switch components is attached to the ceiling of a vehicle 1 as an interior accessory for illuminating the interior of the vehicle. Since the overhead console has lamp components and switch components, it is quite large. Therefore, in conventional cases, a large and imposing overhead console is placed on the ceiling, creating a feeling of oppression from the ceiling. Furthermore, a parting line for the overhead console product is present on the ceiling, leaving room for improvement in terms of the design of the ceiling.

[0033] On the other hand, as shown in Figures 1 and 2, the switch 10 of this example has a structure in which a touch-operated transparent touch operation unit 13 is attached to the glass 3 (windshield 3a). As a result, there are no structures such as an overhead console on the ceiling, resulting in a flat ceiling shape. This makes it possible to create a sense of openness inside the vehicle. Furthermore, the absence of structures such as an overhead console on the ceiling also makes it possible to improve the design of the ceiling. The above is also advantageous in that it can accommodate larger windshields 3a.

[0034] In particular, in this example, the touch operation unit 13 is placed on the glass 3, and the control unit 14 is placed on the vehicle component 15. In this way, only the transparent touch operation unit 13 is placed in the area related to the appearance of the design, and the colored control unit 14 can be hidden by the vehicle component 15. This makes it possible to make the control unit 14 less noticeable, which further contributes to improving the design of the vehicle interior. Also, because the touch operation unit 13 is transparent, there is no physical dividing line. This also contributes further to improving the design of the vehicle interior.

[0035] Furthermore, since there is a degree of freedom in the placement of touch operation unit 13, it is possible to place touch operation unit 13, for example, to the side of windshield 3a in the vehicle width direction. This makes it possible to place touch operation unit 13 close to a user sitting in a seat, thereby improving the operability of touch operation unit 13. Furthermore, since there is a degree of freedom in the placement of touch operation unit 13, it is also possible to place touch operation unit 13 near interior lighting device 12. Therefore, it is possible to intuitively operate interior lighting device 12.

[0036] In addition, in this configuration, the display 18 is displayed by being directly illuminated from behind by light from the light source 20 located on the back side. In this way, the display 18 is displayed with pinpoint accuracy by the light source 20, so it is possible to display the display 18 with sufficient brightness. The contrast of the display 18 is also sufficient. Furthermore, because the light source 20 is an LED, the cost is lower than when an organic EL is used as the light source 20.

[0037] (Effects of the embodiment) According to the switch 10 of the above embodiment, the following effects can be obtained. (1) The switch 10 has a light-transmittable touch operation unit 13 that is touch-operated when operating a device 11 of the vehicle 1, and is used by attaching the touch operation unit 13 to a transparent member 2. The touch operation unit 13 has a transmissive illumination unit 21 that displays a display 18 corresponding to the operation function of the device 11 using a light source 20, and a sensor sheet 22 that detects a user's touch operation on the display 18 displayed on the transmissive illumination unit 21. The sensor sheet 22 is arranged over the transmissive illumination unit 21.

[0038] According to this configuration, the switch 10 for operating the device 11 of the vehicle 1 has a structure in which a transmissive illumination unit 21 having a light source 20 that displays a display 18 indicating the operation function of the device 11 on the surface of the touch operation unit 13 is stacked with a sensor sheet 22 that detects a touch operation on the touch operation unit 13 that targets the display 18. The switch 10 is used as the transparent member 2 of the vehicle 1, for example, by being attached to the glass 3 of the vehicle 1. In this case, there is no need to provide an interior fitting on the ceiling of the vehicle 1 for operating the device 11 of the vehicle 1, and therefore the feeling of oppression from the ceiling inside the vehicle is reduced. This can improve comfort inside the vehicle.

[0039] (2) The transmissive illumination unit 21 is a sheet-like transmissive film unit 32. With this configuration, the switch 10 is sheet-like, which improves the degree of freedom in arranging the switch 10 and the ease of attaching it to the transparent member 2.

[0040] (3) The switch 10 includes a control unit 14 that controls the electrically connected transmissive illumination unit 21 and the sensor sheet 22. The transmissive illumination unit 21 has a first main body 23 having a shape corresponding to the operation area of ​​the touch operation, and a first connection unit 24 extending from the first main body 23. The sensor sheet 22 has a second main body 25 having a shape corresponding to the operation area of ​​the touch operation, and a second connection unit 26 extending from the second main body 25. The control unit 14 is connected to the transmissive illumination unit 21 by the first connection unit 24, and is connected to the sensor sheet 22 by the second connection unit 26.

[0041] According to this configuration, the components of the transmissive illumination unit 21 and the sensor sheet 22 and the control unit 14 that controls them can be arranged at positions separated from each other via the first connection unit 24 and the second connection unit 26. This makes it possible to arrange the transmissive illumination unit 21 and the sensor sheet 22 in the transparent member 2 and arrange the colored control unit 14 so that it is hidden by the components surrounding the transparent member 2. Therefore, because the colored control unit 14 is not arranged in the transparent member 2, the transparency of the transparent member 2 can be ensured.

[0042] (4) The control unit 14 is disposed in a non-transparent vehicle member 15 adjacent to the transparent member 2. According to this configuration, the control unit 14 can be disposed so as to be hidden by the vehicle member 15, utilizing the vehicle member 15 that is located near the transparent member 2.

[0043] (5) The transmissive illumination unit 21 has a sheet-like transparent substrate 33 that forms the main body, and a plurality of LED chips 35 as light sources 20 provided on the substrate 33 to display the display 18. With this configuration, since minute components such as the LED chips 35 are used as the light sources 20, the light sources 20 can be made even less noticeable.

[0044] (6) The plurality of LED chips 35 are arranged to resemble the display body 18. According to this configuration, it is sufficient to provide only the necessary number of LED chips 35, so there is no need to provide a large number of LED chips 35.

[0045] (7) The transparent member 2 is a windshield 3a that extends to form at least a portion of the roof 4 of the vehicle 1. With this configuration, the windshield 3a extends to the ceiling portion 30 of the vehicle 1, making it possible to see the outside of the vehicle through the ceiling. This gives the interior of the vehicle a more open feel, further contributing to improved comfort inside the vehicle. Furthermore, at least a portion of the touch operation unit 13 is disposed so as to extend to the ceiling portion 30 of the windshield 3a. Therefore, the touch operation unit 13 can be disposed in a position close to the ceiling where it does not obstruct the driver's view.

[0046] (Other embodiments) This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

[0047] The light source 20 may have, for example, an illumination function to brightly illuminate the surrounding area in addition to the display function of the indicator 18. That is, the switch 10 may have a light source 20 for illumination (room lamp function or map lamp function) in addition to the light source 20 for displaying the indicator 18.

[0048] The glass 3 is not limited to the windshield 3a, but may be, for example, a window glass of a vehicle door. The transparent member 2 is not limited to the glass 3 (windshield 3a) and may be, for example, an instrument panel in the driver's seat or a transparent panel provided in the center cluster. In this way, the transparent member 2 may be any transparent member mounted on the vehicle.

[0049] The lighting device as the device 11 is not limited to the interior lighting device 12 that illuminates the interior of the vehicle, but may also be an exterior lighting device that illuminates the exterior of the vehicle. The device 11 is not limited to a lighting device, but may also be, for example, an opening / closing device that opens and closes an opening / closing body mounted in the vehicle, an air conditioning device that conditions the air inside the vehicle, an audio device that plays music or radio, or an emergency call device that makes an emergency call.

[0050] The arrangement is not limited to the arrangement of the sensor sheet 22 on the front side of the switch 10 and the transmissive illumination unit 21 on the back side of the switch 10. For example, the transmissive illumination unit 21 may be arranged on the front side of the switch 10 and the sensor sheet 22 on the back side of the switch 10.

[0051] The LED chips 35 are not limited to being disposed only at predetermined positions on the base material 33, but may be disposed over the entire surface of the base material 33, for example. The transmissive illumination unit 21 is not limited to the transmissive film unit 32, but may be any member that can transmit light, has the light source 20, and can display the display 18.

[0052] The light source 20 is not limited to an LED, and may be a layered light-emitting member such as an OLED (Organic Light Emitting Diode). The first adhesive layer 27 and the second adhesive layer 28 are not limited to tape, and may be, for example, an adhesive.

[0053] The sensor sheet 22 is not limited to a capacitance type, but may be a resistive film type, an electromagnetic induction type, an ultrasonic surface acoustic wave type, an infrared scanning type, or the like. The control unit 14 may be configured as [1] one or more processors operating according to a computer program (software), or [2] a combination of such a processor and one or more dedicated hardware circuits, such as an application-specific integrated circuit (ASIC), that execute at least some of the various processes. The processor includes a CPU and memory, such as RAM and ROM, that stores program code or instructions configured to cause the CPU to execute the processes. The memory (computer-readable medium) includes any available medium accessible by a general-purpose or dedicated computer. Alternatively, instead of a computer including the processor, a processing circuit configured by one or more dedicated hardware circuits that execute all of the various processes may be used.

[0054] While the present disclosure has been described with reference to the embodiments, it is understood that the present disclosure is not limited to those embodiments or structures. The present disclosure also encompasses various modifications and equivalent modifications. In addition, various combinations and forms, including only one element, more than one element, or less than one element, are also within the scope and spirit of the present disclosure. [Explanation of symbols]

[0055] 1...vehicle, 2...transparent member, 3a...windshield, 4...roof, 10...switch, 11...device, 13...touch operation unit, 14...control unit, 15...vehicle member, 18...display, 20...light source, 22...sensor sheet, 23...first main body portion, 24...first connection portion, 25...second main body portion, 26...second connection portion, 30...ceiling portion, 32...transmissive film portion, 33...substrate, 35...LED chip.

Claims

1. A switch having a light-transmittable touch operation unit that is touch-operated when operating a device in a vehicle, the touch operation unit being attached to a transparent member of the vehicle, The touch operation unit is a transmission type illumination unit that displays a display according to an operation function of the device using a light source; a sensor sheet disposed over the transmissive illumination unit to detect a user's touch operation on the display displayed on the transmissive illumination unit.

2. The switch according to claim 1 , wherein the transmission-type illumination unit is a sheet-like transmission-type film unit.

3. a control unit that controls the electrically connected transmissive illumination unit and the sensor sheet; the transmissive illumination unit includes a first main body portion having a shape corresponding to an operation area of ​​a touch operation, and a first connection portion extending from the first main body portion; the sensor sheet has a second main body portion having a shape corresponding to an operation area of ​​a touch operation, and a second connection portion extending from the second main body portion; The switch according to claim 1 , wherein the control unit is connected to the transmissive illumination unit by the first connection unit and to the sensor sheet by the second connection unit.

4. The switch of claim 3 , wherein the control is disposed on a non-transparent vehicle member adjacent to the transparent member.

5. 2. The switch according to claim 1, wherein the transmissive illumination unit has a sheet-like transparent substrate that constitutes a main body portion, and a plurality of LED chips as the light source provided on the substrate for displaying the display body.

6. The switch according to claim 5 , wherein the plurality of LED chips are arranged in the shape of the display body.

7. the transparent member is a windshield extending to form at least a portion of the roof of the vehicle; The switch according to claim 1 , wherein at least a portion of the touch operation unit is disposed so as to extend to a ceiling portion of the windshield.

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