JPH0615228U - Thin switch with display function - Google Patents

Abstract

(57) [Abstract] [Purpose] An LCD mainly composed of a thin plate of synthetic resin is arranged on the upper surface of a sheet-like switch formed by stacking contact sheets having contact electrodes with a spacer interposed therebetween.
This is a thin switch with a display function that improves productivity by reducing the number of wiring steps and assembly steps, and gives a feeling of operation. An LCD 28 formed mainly of a synthetic resin thin plate is provided on the upper surface of a sheet-shaped switch in which contact sheets having contact electrodes 23 and 27 that are opposed to each other above and below a spacer 24 are laminated. The contact electrode 2 of the sheet-like switch disposed below by providing the key portion on the upper surface and pressing the key display portion 30
The electric circuit is opened and closed by connecting and disconnecting with 3, 27.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet-like switch formed by stacking contact sheets having contact electrodes, and in particular, a thin switch with a display function in which an LCD mainly formed of a synthetic resin thin plate is arranged on the upper surface of the sheet-like switch. Regarding

[0002]

[Prior art]

 Conventionally, as shown in FIG. 6, the conventional technology in such a field was the LCD 5 mainly made of glass. Therefore, the LCD 5 is made to face each other with the first spacer 13 formed of a transparent sheet interposed therebetween. A transparent touch switch comprising a lower transparent contact sheet 6 having an electrode 7 and an upper transparent contact sheet 10 having a transparent electrode 11 was arranged. The LCD 5 is arranged in the second spacer 3 having the opening 4 of that size, and the wiring pattern sheet 2 is laminated on the lower surface thereof.

[0003]

[Problems to be solved by the device]

 However, in the conventional switch described above, since the LCD is arranged below the transparent touch switch, since the LCD surface is a glass plate, the switch does not bend and the operation feeling is completely lost. Therefore, it was a cause of erroneous operation due to anxiety of operation. In addition, if the gap between the transparent contact sheets is made large in order to obtain a feeling of operation, the visibility in the diagonal direction becomes a problem, and eventually the gap between the transparent contact sheets has to be made small. Further, since the transparent touch switch is arranged on the upper surface of the LCD, there are drawbacks such as complicated connection of the wiring pattern of the switch section and the liquid crystal display section. It is an object of the present invention to eliminate the above-mentioned problems, and to provide a thin switch with a display function that has a simple structure, a clear display, and an operational feeling.

[0004]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides an LCD mainly composed of a synthetic resin thin plate on the upper surface of a switch part in which a contact sheet having contact electrodes facing each other with a spacer interposed is laminated. Key display is performed on the upper surface of the LCD, and a predetermined display portion on the upper surface of the LCD is pressed to bring the contact electrodes into contact with each other to open and close the electric path.

[0005]

[Action]

 According to the present invention, since the switch portion is provided on the lower surface of the LCD formed mainly of a thin plate of synthetic resin, the contact sheet having the contact electrodes facing each other with the spacer interposed is disposed, so that the LCD and the printing can be used. By pressing the display part, the contact electrodes are transmitted to the switch part and the contact electrodes provided on the contact sheet come into contact with each other.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front sectional view of a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of its main part. In these drawings, reference numeral 21 is a base, and like the lower contact sheet 22 and the lower contact sheet 22 in which a contact electrode 23 is provided through a spacer 24 having an opening 25 on the upper surface thereof, The upper contact sheet 26 provided with the contact electrodes 27 is laminated to form a thin switch. The upper contact sheet 26 is provided with the contact electrodes 27 and the LCD 28, and is provided with a circuit pattern to form a display device. Further, the LCD display portion 31 on the upper surface of the thin switch is made transparent, and the surface sheet 29 on which a plurality of key display portions 30 are printed is provided to form a thin switch with a display function. Instead of providing the surface sheet, the key display portion may be formed on the upper contact sheet by printing or the like. Further, a key display section can be provided on the upper surface of the LCD by not only the LCD display but also a label or printing.

FIG. 3 is a front sectional view of a second embodiment of the present invention, in which a second spacer 42 having an opening 43 is provided on the upper surface of a base 41, and a disc 44 curved upward is provided with an opening. 43. Then, as in the first embodiment, the lower contact sheet 45 provided with the contact electrode 46 with the first spacer 47 having the opening 48 interposed therebetween, and the contact electrode 45 similar to the lower contact sheet 45. A thin switch is formed by stacking the upper contact sheet 49 provided with 50. An LCD 51 is arranged on the upper contact sheet 49 together with the contact electrodes 50, and a circuit pattern is provided to form a display device. Further, a thin switch with a display function is formed by providing a transparent display portion of the LCD on the upper surface of the thin switch and providing a surface sheet 52 on which a plurality of key portions are printed. In the thin switch with a display function of the present invention configured as described above, when the key display portion of the surface sheet 52 is pressed, the curved disk 44 is pressed and inverted, so that a clear operation feeling can be obtained. . In addition, in order to obtain a clear operational feeling, various modifications are conceivable, such as drawing the contact sheet and utilizing its reversal operation.

FIG. 4 shows a third embodiment of the present invention in which a base 61 is formed in a curved shape, and a spacer 64 having an opening 65 having the same structure as that of the first embodiment is interposed on the upper surface thereof. A thin switch is constructed by laminating a lower contact sheet 62 provided with contact electrodes 63 and an upper contact sheet 66 provided with contact electrodes 67 similarly to the lower contact sheet 62. The upper contact sheet 62 is provided with the contact electrodes 67 and the LCD 68, and is provided with a circuit pattern to form a display device. Further, a thin switch with a display function is configured by providing a transparent display unit of the LCD on the upper surface of this thin switch and providing a surface sheet 69 on which a plurality of key display units are printed. Since the base 61 is formed in a curved shape, the surface sheet 69, the upper contact sheet 66 on which the LCD 68 is arranged, the spacer 64, and the lower contact sheet 62 are mainly formed of a synthetic resin thin plate. Since they are laminated along the base 61, a thin switch with a display function having a curved surface can be obtained.

FIG. 5 shows a fourth embodiment, in which 81 is a base, a lower contact sheet 82 provided with contact electrodes through a spacer 83 having an opening formed on the upper surface thereof, and a lower contact sheet thereof. Similar to the gate 82, an upper contact sheet 84 provided with contact electrodes is laminated to form a thin switch, and an LCD 85 mainly formed of a synthetic resin thin plate is disposed on the upper surface thereof. With the above configuration, the display section 88 of the LCD displays the key display section 87 such as up, down, left, right and the like, and by pressing the key display section 87, the switch section is operated. The thin switch with a display function configured as described above can display an arbitrary key display portion 87 by the LCD 85 and can be used for various devices. Further, a key display portion may be provided on the upper surface of the LCD 85 by a label or printing. By providing a light-emitting body for a backlight or the like around the LCD, bright and clear function display can be performed. The present invention is not limited to the above-mentioned embodiments, and various modifications can be made based on the spirit of the present invention, and these modifications are not excluded from the scope of the present invention.

[0010]

[Effect of device]

 As described in detail above, according to the present invention, the following effects can be obtained. (1) Conventionally, when a transparent touch switch is pasted on a glass LCD, since the surface is a glass plate, there is almost no bending when the switch is operated, so no operation feeling was obtained. The LCD, which is mainly made of a synthetic resin thin plate, is placed on top of the sheet-shaped switch, which reduces the thickness to a fraction of that of conventional products and reduces the weight. This makes it possible to obtain a feeling of operation, and therefore, it is possible to prevent anxiety of operation and erroneous operation, and the fingertip does not feel uncomfortable or tired during operation. (2) Since the LCD formed mainly of synthetic resin is arranged on the upper part of the sheet-shaped switch, the spacer and the wiring board, which are required when the LCD using the conventional glass is arranged, are connected to the contacts. Since it can also be used as a seat, the structure is extremely simple, and a thin switch with a display function can be obtained with reduced assembly and wiring work. (3) Since the LCD, which is mainly composed of a synthetic resin thin plate, is placed above the sheet-shaped switch, a thin switch with a display function can be obtained without using a transparent touch switch, so it is extremely inexpensive to manufacture. In addition to this, various structures can be applied, such as disposing a disk on a sheet-shaped switch or embossing to obtain a feeling of operation. (4) Unlike conventional LCDs that use glass, an LCD that is mainly composed of a thin plate of synthetic resin is provided, so a thinner switch with a display function can be obtained and the elasticity of synthetic resin can be used. We can provide thin switches with display function that match the design of equipment such as curved surfaces. (5) Since the LCD mainly composed of a thin plate of synthetic resin is used, the operation feeling due to the bending of the synthetic resin can be obtained, and a bright and clear functional display can be performed by providing a light emitting body in the periphery.

[Brief description of drawings]

FIG. 1 is a front sectional view of a first embodiment of the present invention.

FIG. 2 is a perspective view of an essential part of the first embodiment of the present invention.

FIG. 3 is a front sectional view of a second embodiment of the present invention.

FIG. 4 is a front sectional view of a third embodiment of the present invention.

FIG. 5 is a perspective view showing a main part of a fourth embodiment of the present invention.

FIG. 6 is a front sectional view showing a conventional technique.

[Explanation of symbols]

 21, 41, 61, 81 Base 22, 45, 61, 82 Lower contact sheet 23, 27, 46, 50 Contact electrode 24, 63, 83 Spacer 25, 43, 48 Opening 26, 49, 64, 84 Lower part Contact sheet 28, 51, 65, 85 LCD 29, 52, 89 Surface sheet 30, 87 Key display section 31, 88 Display section 42 First spacer 47 Second spacer

Claims (3)

[Scope of utility model registration request] 1. An LCD formed mainly of a synthetic resin thin plate is provided on the upper surface of a switch portion in which a contact sheet having contact electrodes facing each other with a spacer interposed is provided, and a key display is provided on the upper surface of the LCD. Do this with LC
A thin switch with a display function that opens and closes the electric path by contacting the contact electrodes by pressing a predetermined key display section on the upper surface of D. 2. The thin switch with a display function according to claim 1, wherein a curved portion is inverted below the LCD formed mainly of the synthetic resin thin plate to obtain a feeling of operation. 3. A thin switch with a display function according to claim 1, wherein a light emitting body is provided around an LCD formed mainly of the thin plate of synthetic resin.