JPS6142022A - Keyboard device - Google Patents

Abstract

PURPOSE:To change easily and quickly the key arrangement by combining a keyboard consisting of transparent electorde switches and a liquid crystal display device where display contents of the key arrangement are displayed electronically. CONSTITUTION:A liquid crystal display device 5 is provided where characters and symbols of the key arrangement of keys are displayed in accordance with transparent electrode switches 1 as touch switches on a keyboard 4, and the display of the liquid crystal display device 5 is controlled by the signal from a display controller 7 incorporating a ROM. A depression position detector 6 scans switches 1 successively to detect the position of the depressed switch and outputs this position to an output controller 8. The controller 8 outputs the operated key signal in accordance with the position signal of the depressed switch and address information of the character displayed in the position corresponding to said switch position. With respect to the change of the key arrangement, a key arrangement switch 10 is depressed to switch addresses, thus changing the key arrangement.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a keyboard device suitable for use in a 5A position for inputting multiple items, and in particular, the key arrangement of the keyboard device can be set arbitrarily, and The present invention relates to a keyboard device j1 in which display characters can also be set arbitrarily.

[Current Technique 1] A conventional keyboard of this type will be explained in the fourteenth section.

In the figure, (1) 11 transparent electrodes (or switches), (2) roll paper, ° (3) roll paper roll bag ♂ 1, and (4) transparent electrode switch (1). This is an IC keyboard.The roll paper (2) is divided into sections in the length direction at intervals longer than the length of the keyboard, and a mark (J) indicating an identification symbol is placed in each section of A. A key arrangement is displayed corresponding to the position of the electrode switch.The display of the key arrangement on the roll paper is visible through the transparent electrode switch (1).The winding device for the roll paper d In (3), the operation IIIl is performed using the signal from the detection 9i2F (not shown) that detects the mark of the identification symbol indicating the divided area on the roll paper, and the key arrangement displayed on the roll paper is pressed. The letters or symbols are
The roll paper (2) is wound up so as to correspond to the position of the transparent electrode switch (1), or the winding is stopped, and the keyboard key arrangement is displayed on the corresponding switch through the transparent electrode switch. A predetermined portion of the roll paper (2) is positioned so that In such an O-roll paper type itemized input keyboard device, items are written on roll paper (2), selected through transparent electrodes, and the selection information is taken out as an output signal. For this reason, it is necessary to create a key layout table on the roll paper before use, and for the bales used after creating the roll paper (2),
The disadvantage was that it was difficult to change. Furthermore, since the types of key arrangements written on the roll paper are limited by the storage l of the roll paper winding device (3), there is a problem in that a wide variety of key arrangements cannot be used. Also,
This roll paper type itemized input keyboard Kffl is
Since the key arrangement is changed by mechanical operation of driving the roll paper winding device, there is also a problem that the switching operation is slow.

[Summary of the Invention] This invention was made to solve the above-mentioned problems, and includes a board consisting of a transparent electrode switch,
The present invention is characterized by providing a keyboard device in which the key arrangement can be easily and quickly changed by combining a liquid crystal display device that electronically displays the display contents of the key arrangement.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Second
The figure is a perspective view of a keyboard device that is an embodiment of the present invention. In the board device shown in FIG. 2, a liquid crystal display (5) is used as a display device for displaying the characters and symbols of the key arrangement of the key corresponding to the transparent electrode switch (1) on the keyboard (4). ) is used. This liquid crystal display device (5) displays its display characters in a dot format, and the fonts of the displayed characters and symbols are stored in a read-only memory (ROM), and the display control device 1 (7)
The transparent electrode switch (1) is read out and predetermined characters and symbols are displayed in accordance with the key arrangement and corresponding to the arrangement position of the transparent electrode switch (1). The transparent electrode switch (1) is a liquid crystal display bag 2!
They are arranged vertically and horizontally on the keyboard (4) which is superimposed on the keyboard (5), and touch type switches are used here.

The touch switch detects commercial frequencies induced in the human body. This touch switch is well known and is not an essential part of the present invention, so its explanation will be omitted. However, in the present invention, the requirements for the wooden transparent electrode switch are: Any type of switch that uses a switch that can be visually checked may be used.

The liquid crystal display device (5) has a dot pattern drawn thereon for displaying characters and symbols corresponding to the position d of the transparent electrode switch (1) of the keyboard (4), and the display control device fi! The display is controlled by the signal from (7). The display 1lIIIa system af (7) has a built-in memory (ROM) dedicated for displaying characters and symbol patterns, and according to the specified key layout data,
Characters and symbols are displayed on the liquid crystal display device (5) on the bottom surface of each transparent electrode switch. The pressed position detection device (6) sequentially scans the transparent electrode switches (1) on the keyboard (5),
It detects the position of the transparent at-pole switch (1) pressed down by the operator, and the pressed position detection No. 18 is output to the output υ control device (8). Output 111160 wll
(8) receives the pressure detection signal from the pressed position detection device (6), and displays the display from the IQ control device (7).
In response to the Il111 signal, characters are displayed at the position corresponding to the operated position signal of the transparent electrode switch (1),
Outputs the code signal of the operated key from the address information of the symbol pattern. To change the key layout, press the key layout selection switch (10), and the press signal will be sent to the display 11m device ff1 (7) through the output control device (8).
). That is, the selection device for selecting the display of multiple types of key layouts to be displayed on the liquid crystal display device includes a key layout selection switch (10) and a key layout selection switch (10).
Output control device (8) and output control 11i! to which the press signal of 0) is sent. Display added through the output of (8) &
1llllI[(7). Display training m 2if
In (7), when a signal for changing the key arrangement is received, the upper address is switched and the character display of the key arrangement is changed. In addition, the signal of the key layout selection switch (10) is the transparent electrode switch (1)
Similarly to the group, it may be applied to the output control device (8) through the pressed position detection device (6).

In the above embodiment, the display device is a liquid crystal display device (5).
Although the case where the present invention is used is described, the present invention can be similarly applied to any electronic display device of this type.

[Effects of the Invention] As explained above, according to the present invention, there is provided a liquid crystal display device r1 that can arbitrarily change the display contents of a 1-array, and a group of transparent electrode switches arranged on the top surface of this liquid crystal display device. Through the keyboard, you can manually operate the keys according to the key layout displayed on the display device.
Input operations can be performed by selecting a wide variety of key layouts in response to inputting multiple items. Moreover, this type of key arrangement can be changed at high speed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view schematically showing a conventional multi-item input keyboard, and FIG. 2 is a block diagram showing a keyboard device according to an embodiment of the present invention. In the figure, (1) is a transparent electrode switch, (2) is a roll paper, (3) is a winding device, (4) is a keyboard, (5) is a liquid crystal display device, (6) is a pressed position detection S haze, (7) is a display control device, (8) is an output control device, and (10) is a key layout selection switch. In addition, in the figures, the same reference numerals and the same symbols indicate the same or equivalent parts.

Claims (3)

[Claims] (1) A liquid crystal display device that displays characters or symbols to be displayed on the keyboard surface according to the key arrangement, and a liquid crystal display device that displays characters or symbols on the display surface of the liquid crystal display device in accordance with the display position of the characters or symbols displayed on the display surface of the liquid crystal display device. A keyboard consisting of a group of transparent electrode switches in which each transparent electrode switch is arranged and characters or symbols displayed by the display device can be seen through the transparent electrodes, and a display of a plurality of types of key arrangement to be displayed on the liquid crystal display device. 1. A keyboard device comprising a selection device for making a selection, and outputting a display character code of a liquid crystal display device by pressing the transparent electrode switch. (2) The key layout displayed by the liquid crystal display device is as follows:
The keyboard device according to claim 1, characterized in that the keyboard arrangement corresponds to input items. (3) The keyboard device according to claim 1, wherein the key arrangement displayed by the liquid crystal display device is a key arrangement of 50 kana characters.