JPH0722012Y2 - LCD display push button switch - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display push button switch in which a liquid crystal plate is provided on the upper surface of an operation button.

[0002]

2. Description of the Related Art Conventionally, as a liquid crystal display push button switch of this type, a display portion made of a liquid crystal plate is provided on the upper surface of the operation button of the push button switch, and information such as characters and symbols constituted by lines is displayed there. there were. In addition, an illuminating section in which a light emitting body is arranged is provided around the liquid crystal plate.

[0003]

However, in the liquid crystal display push button switch configured as described above, when blinking, the display disappears, so that the display is erroneously recognized. Further, since the light-emitting body is arranged around the liquid crystal plate, there is a drawback that a space is correspondingly taken and the entire switch becomes large.

Further, the display of the liquid crystal plate is visually appealing by the light-emitting body arranged around it, but it is difficult to understand because the display part of the liquid crystal plate and the light-emitting part of the light-emitting body are apart from each other, and it is mistakenly recognized. There was a flaw. The present invention eliminates the above problems,
An object of the present invention is to provide a liquid crystal display push button switch which can reduce the space and can make the display clear to prevent accidents due to misidentification.

[0005]

In order to achieve the above object, the present invention provides a switch in which terminals are projected from the lower surface of the operation button and the switch body, and a liquid crystal plate is provided on the upper surface of the operation button. An IC mounted in the operation button while providing a liquid crystal display portion for information such as characters and symbols on a plate
By the control by the chip, the flashing display is performed between the information such as the characters and symbols and the other liquid crystal display section by reversing the light and shade repeatedly.

[0006]

According to the present invention, as described above, in the switch in which the terminals are projected from the lower surface of the operation button and the switch main body, and the liquid crystal plate is arranged on the upper surface of the operation button, characters, symbols, etc. are provided on the liquid crystal plate. A liquid crystal display unit for the information of the above is provided, and the characters on the liquid crystal plate are controlled by the IC chip mounted in the operation button.
Flushing display is performed between the information such as symbols and the other liquid crystal display unit by reversing light and shade repeatedly.

Therefore, the display becomes clearer and accidents due to misidentification can be prevented.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a perspective view of a liquid crystal display push button switch showing an embodiment of the present invention, FIG. 2 is a plan view showing the display state of the operation buttons of the liquid crystal display push button switch of the present invention on the liquid crystal surface, and FIG. 3 is a liquid crystal display of the present invention. It is a top view which put a push button switch together.

In these figures, 1 is a switch body,
Reference numeral 2 designates a switch terminal projecting from the bottom surface of the switch body, and 3 designates an operation button. Reference numeral 4 denotes a liquid crystal display section provided on the upper part of the operation button 3. The upper surface of the operation button 3 is a translucent member, and a display section for displaying symbols, characters, figures and the like is provided, and a liquid crystal plate is provided on the back surface thereof. Arrange. A switch body 1 provided with a contact mechanism section (not shown) is provided below the switch body 1 and constitutes a liquid crystal display push button switch.

On the liquid crystal display unit, for example, as shown in FIG. 2A, the character A is displayed by a line 5 so that the character A is darker than the outer portion 4, or as shown in FIG. As shown in (), the character A can be a blank 6 so that it is thinner than the outer portion 4 '. In addition, a liquid crystal display push button switch is also installed to enable various types of display.
That is, as shown in FIG. 3 (a), the character A is displayed by a line 5, or as shown in FIG. 3 (b), the character A is outlined 6 or as shown in FIG. 3 (c). , The letter A represented by the line 5 is flashed (blinking) 7, or the letter A is outlined 6 is flushed 8 as shown in FIG. 3 (d). As shown, the alternate inversion display of FIGS. 3A and 3B can be performed.

As described above, as shown in FIG. 3A and FIG.
The display of (b) can be made to display five types of functions. Further, by making the backlight multicolored, it is possible to display the function more than twice as many as the combination. As described above, the character portion can be displayed darker than the outer portion, or conversely, the character portion can be lightened so that the outer portion is displayed darker. In that case, it is not always necessary to insert a line in the character portion, and it is sufficient to make the color tone relatively darker to the outside or lighter on the contrary. The control is freely performed by the mounted IC chip (see FIG. 5).

An example of a concrete structure of the liquid crystal display push button switch of the present invention will be described below with reference to the drawings. FIG. 4 is a sectional view of an essential part showing an example of the liquid crystal display push button switch of the present invention, FIG. 5 is an exploded perspective view of the liquid crystal display push button switch, and FIG. 6 is a plan view of a holder of the liquid crystal display push button switch. .

In these figures, 10 is a switch main body, and an operating shaft 11 is attached to the central portion of the switch main body 10. A recess 12 is formed on the left side, and a connector 14 with a switch terminal 15 is provided below the recess 12, and a circuit pattern 21 at one end of a flexible printed wiring board 20 is connected to the connector 14. A plunger 16 is located at the upper end of the operating shaft 11, and projections 17 are formed at both ends thereof. A flexible printed wiring board 20 is attached to the upper portion of the plunger 16. The flexible printed wiring board 20 has a through hole 22 through which the operating shaft 11 penetrates and a mounting hole 23 into which a printed circuit board 25 is mounted.
And the circuit pattern 21 is provided at one end thereof. An IC chip 26 is mounted on the printed board 25. The holder 30 is provided on the printed circuit board 25. On this holder 30, two pairs of multicolored light-emitting bodies 31, 32 and 33,
34 is provided.

Further, projecting portions 35 and 36 are formed facing each other on both sides, and elongated holes 37 and 38 are formed inside them. Connectors 41 and 42 connected to the circuit pattern of the printed circuit board 25 are attached to the long holes 37 and 38 to apply a voltage to the liquid crystal plate 43. These connectors 41, 4
A diffusion plate 40 is arranged inside the unit 2. An operation button 44 is provided so as to cover the above-mentioned assembly, and a display portion 45 made of a translucent member is formed at the center of the operation button 44.

As described above, the display portion 45 of the operation button 44
A liquid crystal plate 43 is disposed on the back surface of the. The connectors 41 and 42 for connecting the printed circuit board 25 and the circuit pattern 21 are provided in the holder 3 in contact with the lower surface of the liquid crystal plate 43 near the front and rear ends thereof.
Long holes 37 and 38 are provided before and after 0, and a diffusion plate 40 is housed in a predetermined space of the holder 30 between the connectors 41 and 42 arranged before and after the long holes 37 and 38, and is provided around the diffuser 40. Light emitters 31 to 34, which face each other and emit light in multiple colors, are provided. In this embodiment, two pairs of multicolored light emitters 31,
32, 33, 34 are arranged.

A printed circuit board 25 is provided below the holder 30, and an IC chip 26 is mounted on the upper surface of the printed circuit board 25. Further, the flexible printed wiring board 20 has an attachment hole 23 for fixing and a through hole 22 for loosely fitting the actuating shaft 11 protruding below the plunger 16, and the circuit pattern thereof is the circuit pattern 21 of the printed circuit board 25. Connected to.

Further, the plunger 16 is also elastically fitted in the space of the operation button 44, and thus the liquid crystal plate 43 to the plunger 16 are housed in the operation button 44. The switch body 10 has a recess 12 on one side thereof for accommodating the connector 14, and accommodates the operating shaft 11 for driving the contact. The shaft 18 projecting downward from the plunger 16 and the actuating shaft 11 are connected so as to be able to transmit an operating force.

A liquid crystal display unit for information such as characters and symbols is provided on the liquid crystal plate 43 thus constructed, and in addition to the liquid crystal display, the liquid crystal display unit 45 is controlled by the IC chip 26 as described above. The display is made by reversing the light and shade of the color tone of. Further, the information on the liquid crystal plate 43 is subjected to a flashing display by the reciprocal reversal effect of light and shade.

FIG. 7 is a side view for comparing the height of the operation button of the liquid crystal display push button switch of the present invention with the height of the operation button of the conventional liquid crystal display push button switch. FIG. 7 (a) shows the present invention. FIG. 7B is a side view of the conventional operation button of FIG. In the display of the operation buttons of the liquid crystal display push button switch of the present invention, since many functions can be displayed without using a backlight, the present invention is different from the conventional operation button 51 equipped with a backlight. The height of the operation button 50 can be lowered by H-H '.

FIG. 8 is a side view for comparing the size of the operation button of the liquid crystal display push button switch of the present invention with the size of the operation button of the conventional liquid crystal display push button switch.
8A is a plan view of the operation button of the liquid crystal display push button switch of the present invention, and FIG. 8B is a plan view of the operation button of the conventional liquid crystal display push button switch in which a light emitter is arranged on the upper surface of the operation button. FIG. 3C is a plan view of a liquid crystal display push button switch in which a light emitting body is arranged around a conventional operation button.

In these figures, the width X'of the operation button 60 of the liquid crystal display push button switch of the present invention is the operation button 61 of the conventional liquid crystal display push button switch in which a light emitter is arranged on the upper surface of the operation button.
Width X and the width X of the liquid crystal display push button switch 62 in which a light emitting body is arranged around the conventional operation button, the width can be reduced by XX ′, which results in a large space. It can be reduced.

The present invention is not limited to the above-described embodiments, but various modifications can be made within the scope of the present invention, and these modifications are not excluded from the scope of the present invention.

[0023]

As described above in detail, according to the present invention, the following effects can be obtained. (1) Unlike conventional flashing flashing of characters and symbols in word processors and personal computers, the present invention provides a liquid crystal display of information such as characters and symbols on the liquid crystal plate of the operation button.
By the control by the IC chip mounted in the operation button, the information such as characters and symbols on the liquid crystal plate is flushed by the reversing action of light and shade, so that the display does not disappear every time it blinks. Therefore, the display of the characters and symbols is easy to see, and therefore the characters and symbols are not misunderstood.

(2) Displayed characters and symbols on the liquid crystal plate are not only darkly displayed as in the prior art, but also displayed as if the lines forming the characters and symbols are removed, and the display can be reversed. As a result, even when a plurality of units are provided side by side, the display can be differentiated at a glance. Therefore, in order to perform a separate function display, it is possible to omit the backlight of the light emitting body having a different color tone. In addition, since it is not necessary to use a backlight, the space for the light emitter can be omitted, and the size is small,
Moreover, it can be manufactured at low cost.

(3) The characters and symbols displayed on the liquid crystal plate are not only displayed darkly as in the prior art, but also displayed as if the lines forming the characters and symbols are removed, and the display is reversed. Since it is possible to increase the number of functions displayed on the operation button surface. Also, because the function display only on the liquid crystal surface is insufficient, a plurality of light emitters were arranged on the outer periphery of the liquid crystal plate of the operation button to compensate, but according to the present invention, most of them do not require it. Therefore, the operation button can be made small.

(4) By combining the structure of the present invention with a conventional backlight and a light-emitting body arranged on the operation button, more functions can be displayed, so that the application can be expanded more than ever. You can

[Brief description of drawings]

FIG. 1 is a perspective view of a liquid crystal display push button switch according to an embodiment of the present invention.

FIG. 2 is a plan view showing a display state on the liquid crystal surface of the operation button of the liquid crystal display push button switch of the present invention.

FIG. 3 is a plan view showing the liquid crystal display push button switch of the present invention.

FIG. 4 is a cross-sectional view of essential parts showing an example of a liquid crystal display push button switch of the present invention.

FIG. 5 is an exploded perspective view showing an example of a liquid crystal display push button switch of the present invention.

FIG. 6 is a plan view showing an example of a holder of the liquid crystal display push button switch of the present invention.

FIG. 7 is a side view for comparing the height of the operation button of the liquid crystal display push button switch of the present invention with the height of the operation button of the conventional liquid crystal display push button switch.

FIG. 8 is a side view for comparing the size of the operation button of the liquid crystal display push button switch of the present invention with the size of the operation button of the conventional liquid crystal display push button switch.

[Explanation of symbols]

 1,10 Switch body 2,15 Switch terminal 3,44,50,51,60,61 Operation button 4 Liquid crystal display 11 Operating shaft 12 Recess 14 Connector 16 Plunger 17 Projection 18 Axis 20 Flexible printed wiring board 21 Circuit pattern 22 Through hole 23 Mounting hole 25 Printed circuit board 26 IC chip 30 Holder 31, 32, 33, 34 Light emitter 35, 36 Projection part 37, 38 Long hole 40 Diffuser plate 41, 42 Connector 43 Liquid crystal plate 44 Operation button 45 Display part

Claims (1)

[Scope of utility model registration request] Claim: 1. From the bottom of the operation button and switch body,
Project, in the switch which is disposed a liquid crystal plate on the upper surface of the operation button, the character on the liquid crystal panel, Rutotomoni provided a liquid crystal display unit of the information symbols and the like, IC to be mounted in said operating button
Information such as the above-mentioned characters and symbols can be controlled by a chip.
The liquid crystal display push button switch which is characterized in that the flushing indication according to forward and backward repeatedly inverted <br/> shades in between the liquid crystal display unit of the other.