JPH09147663A - Touch panel switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch panel switch which is provided with stroke and clicking feeling despite a large screen and improves operability. SOLUTION: A switch plate 12 and a liquid crystal display(LCD) 15 to be an image display means are arranged in parallel to each other respectively and the switch plate 12 is movably supported perpendicular to the scope 21 of the LCD15. Secondly, a momentary switch 23 for producing moderate feeling is provided on a printed wiring board 13 arranged in parallel to the LCD15 at certain intervals in a position opposed to an approximately center part of the switch plate 12. A projection part 22 for pressing the momentary switch 23 is provided in the switch plate 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch panel switch suitable for application to a vehicle-mounted switch or the like.

[0002]

2. Description of the Related Art Recently, touch panel switches have come to be used as operation switches for automobiles. FIG.
Shows a conventional resistive touch panel switch 100. The touch panel switch 100 includes a glass substrate 101 and a sheet 102, each of which is formed of a transparent conductive film with electrodes 1
03 and 104 are formed, and a transparent conductive paint film is applied on the electrodes 103 and 104. And sheet 1
When the arbitrary position of 02 is pushed, the electrode 103 of the pushed position,
104 contact each other, and a switch corresponding to the electrodes 103 and 104 operates. In addition to the resistance film type, the touch panel switch includes a photoelectric matrix type, a capacitance detecting type, a load detecting type, and an acoustic type.

In addition to the above, a touch panel switch 110 as shown in FIG. 8 has also been proposed.
The touch panel switch 110 is provided on the printed circuit board 11
The display unit 112 is attached to the display unit 11
The push switch 113 is attached to the center of the display unit 2 and the cover 114 arranged above the display unit 112 is pressed to push the free end 116 of the frame plate 115 whose one side is supported by the printed circuit board 111 from the fulcrum 117. The switch 113 is pressed. In addition, 118 is a pressure sensor and 119 is a case.

[0004]

By the way, a large number of various push switches are used as operation switches in the interior of an automobile, and the push switches allow the user to feel a stroke feeling and a click feeling (moderation feeling) with a finger. Has become. However, if such a push switch that allows the user to confirm the operation feeling with the finger and the touch panel switch 100 as shown in FIG. 7 are used in a mixed manner, not only a feeling of discomfort but also an erroneous operation may occur. This is because
This is because the touch panel switch 100 does not have an operation feeling that can be directly sensed with a finger, and therefore the operation feeling is supplemented by visually recognizing the electronic sound or the color change of the screen that is sensed by the ear.

Therefore, as a means for directly sensing the operation feeling, there has been proposed a method in which a feeling of moderation is generated by the operation of the push switch 113 at the same time as the operation of the cover 114 shown in FIG. However, this touch panel switch 110
Is effective for a small rectangular screen because the free end 116 of the frame plate 115 inclines in only one direction from the fulcrum 117, but for example, a screen having a size of 5 inches or more has a short-end dimension of 70 mm or more. Therefore, there is a possibility that the stroke of the cover 114 is insufficient when the end portion of the screen is pressed, so that no feeling of moderation occurs, or the push switch 113 does not operate normally. The present invention has been made in view of the above circumstances, and provides a touch panel switch that can improve the switch operability with a feeling of stroke and moderation even on a large screen, and can be applied to an in-vehicle switch as well as another switch. The purpose is not to cause discomfort during operation.

[0006]

The structure of a touch panel switch according to the present invention for achieving the above object comprises a switch plate and a printed wiring board which are arranged in parallel to the screen display means, respectively. The plate is movably supported with respect to the screen display means and can move to press the printed wiring board, and a switch for abutting against the switch plate by the movement of the switch plate to generate a feeling of moderation is provided on the printed wiring board. It is characterized in that it is provided substantially at the center.

Alternatively, the switch plate is provided in a double structure sandwiching the screen display means from both sides, and the switch plate and the screen display means are integrally assembled. Alternatively, a convex portion for pressing the switch is provided at a position of the switch plate corresponding to the switch.

Alternatively, the screen display means is fixed to the cluster panel, and the switch plate is movably locked to the mounting means protruding from the cluster panel via the biasing means, and the switch plate is pressed. It is characterized by being provided so as to be elastically recoverable. Or,
It is characterized by further comprising a pressing pin which slidably penetrates through a substantially central portion of the screen display means and presses the switch by the switch plate.

Since this touch panel switch is provided with a switch for generating a click feeling in the center of the screen,
Even on a large screen, a feeling of stroke and a feeling of moderation are uniformly generated, and even when used in combination with other switches such as a push switch, the operation can be performed without a feeling of strangeness. Further, since the convex portion of the switch plate presses the switch and the end portion of the switch plate is prevented from coming into contact with the printed wiring board first, it is possible to always generate a uniform moderation.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a touch panel switch according to the present invention will be described in detail below with reference to the drawings. 1 is an exploded perspective view showing a first embodiment of a touch panel switch according to the present invention in an exploded manner, and FIG. 2 is FIG.
3 is a perspective view of a touch panel switch to which a switch plate is attached, FIG. 3 is a perspective view showing a printed wiring board of the touch panel switch, and FIG. 4 is a sectional view taken along line AA of FIG. As shown in FIG. 1, the touch panel switch 1 is
A switch plate 12 formed in a frame shape, a printed wiring board 13, and a cover 14 are sequentially arranged on the back side of the cluster panel 11.

A square window 16 is provided on the cluster panel 11, and four windows 16 are provided near the corners of the window 16 as mounting means for mounting the switch plate 12, the printed wiring board 13 and the cover 14. The boss 17 is provided so as to project from the back surface side of the cluster panel 11.

The switch plate 12 is provided in a substantially rectangular parallelepiped, and an LCD (liquid crystal display device) 15 serving as a screen display means can be housed therein. That is, the switch plate 12 is provided in a double structure that sandwiches the LCD 15 from both sides, and the LCD 15 is incorporated and integrated. The switch plate 12 is provided with a mounting hole 18 at a corner position corresponding to the boss 17, and the switch plate 12 is mounted on the cluster panel 11 by inserting the boss 17 into the mounting hole 18.

The boss 17 penetrating the mounting hole 18 has a structure shown in FIG.
As shown in, the compression spring 19 serving as the biasing means is inserted, and the E ring 20 is further fitted. As a result, the switch plate 12 is secured to the boss 17 and is elastically movable in a direction perpendicular to the screen 21 of the LCD 15 described later.

A convex portion 22 for pressing a tact switch 23, which will be described later, is provided at a substantially central portion on the back surface of the switch plate 12. The switch plate 12 is an LC
It is configured as a two-layer glass substrate sandwiching D15 from both sides, and a pad formed of a transparent resistance film is mounted on the first layer (on the side of the cluster panel 11) to form a capacitance detection type switch. . The second layer of the switch plate 12 (on the side of the printed wiring board 13) functions to generate a feeling of moderation. A connector 35 is connected to the lead portion 34 of the switch plate 12.

A conventionally well-known one can be applied to the LCD 15,
From the side of the switch plate 12, the switch plate 1
2 is inserted as an intermediate layer. And LCD15
Are fixed by screws 32 to a pair of LCD fixing stays 36 protruding from the cluster panel 11. Therefore, the switch plate 12 is provided movably with respect to the screen 21 of the fixed LCD 15. The LCD 1
A connector 37 is integrally provided on the side surface of the connector 5. The LCD 15 is attached to the cluster panel 11 so as not to be guided.

As shown in FIG. 3, the printed wiring board 13 is a tact switch 23 for generating a moderation at a position corresponding to the convex portion 22 of the switch plate 12 on the surface side facing the switch plate 12. Is attached. That is, when the tact switch 23 is pressed, a tactile sensation is generated and an ON signal is output. Also,
A plurality of rubber contacts 33 and connectors 30, 38 are provided on the front surface side of the printed wiring board 13, and a wire harness connection connector 31 is provided on the back surface side. As shown in FIG. 4, the printed wiring board 13 is fixed to the top of the boss 17 on which the switch plate 12 is mounted by fixing screws 24. More specifically, in the printed wiring board 13, when the switch plate 12 moves to the limit position against the biasing force, only the convex portion 22 abuts the tact switch 23, and It is placed so that it does not come into contact with the part.

The switch plate 12 and LCD 15 mounted as described above are connected to the connectors 35 and 37, respectively.
Are connected to and electrically connected to the connectors 38 and 30 of the printed wiring board 13.

As shown in FIG. 1, the cover 14 has an opening 39 formed therein to expose the wire harness connecting connector 31 of the printed wiring board 13 and a switch in which the printed wiring board 13 and the LCD 15 are integrally incorporated. The fixing screw 2 so as to include the plate 12 and each component provided on the back surface side of the cluster panel 11
It is fixed to the cluster panel 11 by 5. The cluster panel 11 includes a rotary switch assembly 26A and a fan switch assembly 26.
B, a temperature control switch assembly 27, a mode changeover switch assembly 28, and a light guide plate 29 are assembled.

Touch panel switch 1 having the above structure
When setting the content displayed on the screen 21 of the LCD 15, when the switch plate 12 is pressed through the window 16 of the cluster panel 11, the switch plate 12 elastically translates in a direction perpendicular to the screen 21, The tact switch 23 of the printed wiring board 13 is pressed by the convex portion 22 of the switch plate 12. As a result, the tact switch 23 is turned on with a feeling of moderation.

That is, this switch panel switch 1
Is the switch plate 12 and the LCD 1 as described above.
Since the tactile switch 23 for generating a feeling of moderation is attached corresponding to the central position of the switch 5, even if the corner of the switch panel switch 1 is pressed even if the LCD 15 has a large screen, the switch is turned on. The panel switch 1 is constantly moved in parallel to uniformly generate a stroke feeling and a click feeling. Therefore, even when used in combination with another switch such as a push switch, the switch can be operated without a feeling of strangeness.

Further, by using the tact switch 23, a tactile sensation is generated and the tact switch is turned on at the same time. Therefore, it is possible to prevent an erroneous operation such that the tact switch 23 is erroneously turned on while searching the display contents on the screen. . Further, since the switch is turned on when a feeling of moderation is obtained, it is possible to avoid the trouble of damaging the switch plate 12 by applying an excessive pressing force to the switch plate 12.

Although the switch plate and the LCD are integrally formed in the above embodiment, the present invention does not necessarily have such a structure, and may be structured as shown in FIG. 5, for example. it can. FIG. 5 is an exploded perspective view of a main part of the touch panel switch according to the second embodiment of the present invention, and FIG. 6 is a cross-sectional view of the main part. 5 and 6, in this touch panel switch, the switch plate 44, the LCD 41, and the printed wiring board 13 are arranged in parallel, but unlike the previous embodiment, the switch plate 44 and the LCD 41 are configured separately. ing. In this case, a collar 42 is attached to the LCD 41 at substantially the center thereof, and a push pin 43 slidable in a direction perpendicular to the screen 45 is inserted in the collar 42.

The push pin 43 is fitted from the printed wiring board 13 side, and the base portion 43A thereof has the printed wiring board 1 mounted thereon.
3 is in contact with the tact switch 23 provided on the upper part of the upper part 3.
On the screen 45, as shown in FIG. 6, a glass substrate forming a switch plate 44 is movably installed with a small space. When the switch plate 44 is pressed to push down the push pin 43, the push pin 43 moves in the collar 42 and pushes the tact switch 23.

[0024]

As described above, in the touch panel switch according to the present invention, the switch plate arranged parallel to the screen display means is movably supported, and the touch panel switch is provided at a substantially central portion on the printed wiring board by the movement. Since the tact switch is pressed, it is possible to always generate a feeling of moderation. Therefore, even when used in combination with another push switch or the like, there is no sense of discomfort during operation. In addition, the switch plate is provided so that it can move in parallel, and the protrusions project from the tact switch, so that other parts must come into contact with the printed wiring board first and disable the tact switch. There is no. That is, LDC
A stable stroke feeling and moderation feeling can be obtained at all times even if the screen is enlarged. Further, since the switch is turned on at the same time when the feeling of moderation is generated, it is possible to prevent the switch plate from being damaged by applying an excessive pressing force to the switch plate.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of a touch panel switch according to the present invention.

FIG. 2 is a perspective view showing a mounted state of a switch plate in FIG.

FIG. 3 is a perspective view of a printed wiring board showing a mounted state of a tact switch.

FIG. 4 is a sectional view taken along line AA of FIG. 2;

FIG. 5 is an exploded perspective view of essential parts showing a second embodiment of a touch panel switch according to the present invention.

FIG. 6 is a sectional view of a main part of FIG. 5;

FIG. 7 is a configuration diagram illustrating a conventional touch panel switch.

FIG. 8 is an exploded perspective view showing the configuration of another conventional touch panel switch.

[Explanation of symbols]

 1 Touch panel switch 11 Cluster panel 12,44 Switch plate 15,41 LCD 19 Compression spring 21,45 Screen 22 Convex part 23 Tact switch 42 Push pin

Claims (5)

[Claims] 1. A printed wiring board comprising a switch plate and a printed wiring board which are arranged in parallel to the screen display means, respectively, and the switch plate is movably supported and moved with respect to the screen display means. The touch panel switch is characterized in that a switch for pressing the switch plate is provided in a substantially central portion of the printed wiring board so as to come into contact with the switch plate and generate a feeling of moderation when the switch plate moves. 2. The switch plate is provided in a double structure that sandwiches the screen display means from both sides, and the switch plate and the screen display means are integrally assembled. Touch panel switch. 3. The touch panel switch according to claim 1, wherein a convex portion for pressing the switch is provided at a position of the switch plate corresponding to the switch. 4. The screen display means is fixed to a cluster panel, and the switch plate is movably locked to a mounting means protruding from the cluster panel via a biasing means to press the switch plate. The touch panel switch according to claim 1, wherein the touch panel switch is elastically recoverable. 5. The touch panel switch according to claim 1, further comprising a pressing pin that slidably penetrates a substantially central portion of the screen display unit and presses the switch by the switch plate.