JPH02214227A - Keyboard device - Google Patents

Abstract

PURPOSE:To reduce the occurrence of a type mistake by providing a device checking the shift state, a device switching a light emitting device corresponding to the shift state and a device displaying a character on a key top in the transmission light system. CONSTITUTION:When shift keys 1-3 are depressed, a shift state check device 4 checks the shift state of each occasion and when changeover is required, to which light emitting device is to be switched is commanded to a light emitting device switching device 5. Then the light emitting device switching device 5 switches light emitting devices 6-11 according to the command of the shift state check device 4. A character 12 of each key top is devised to transmit a light and the character able to be inputted by the present shift state is displayed on the key top by the lighting the light emitting devices 6-11 in the key top. Thus, mis-typing is reduced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a keyboard device for an electronic computer such as a personal computer, and particularly to a keyboard device in which each key functions as two or more input keys by interlocking with a shift key. The present invention relates to a keyboard device.

[Prior Art] Conventionally, in the keyboard device of an electronic meter 'xR' such as a personal computer, the number of symbols to be inputted is large compared to the total number of keys, so a plurality of symbols are inputted using the - key.

In such a case, the key top of each key should be
), only representative characters among the characters that can be entered by the key are engraved, or all characters that can be entered are engraved, as shown in FIG. 3(b).

[Problems to be Solved by the Invention] In the conventional keyboard device described above, only or all of the representative characters among the characters that can be input using the key are engraved on the key top. The disadvantage was that it was unclear what characters could be input due to the shift status at times, and typos were common.

[Means for Solving the Problems] An object of the present invention is to solve the above-mentioned problems of the prior art, and to reduce typographical errors by displaying characters that can be entered on the key tops depending on the shift state at the time. It is an object of the present invention to provide a keyboard device that can perform the following functions.

The present invention has achieved the above object, and provides a mechanism for checking the shift state and a mechanism corresponding to the shift state in a keyboard device of the type in which each key becomes an input key on two sides by interlocking with the shift key. The device is characterized by having a mechanism for switching the light emitting device by using a button, and a mechanism for displaying characters on the key tops using a transmitted light method.

[Actual Information] Next, a keyboard device according to the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory diagram of processing in an embodiment of the keyboard device according to the present invention.

FIGS. 2(a) and 2(b) are a plan view and a side view of the key top.

As shown in FIG. 2, on each key top of the keyboard device according to the present invention, all characters that can be entered by the key are arranged, and each character 12 is made to transmit light. Inside the key top, a light emitting device 13 is provided for each character, and each character is illuminated from inside the key top so that characters that can be input can be displayed depending on the shift state at the time.

Next, the processing of the keyboard device according to the present invention will be explained using FIG.

When the shift key 1.2.3 is pressed, the shift state check mechanism 4 checks the current shift state, and if switching is necessary, instructs the light emitting device switching mechanism 5 to which light emitting device to switch to. do.

The light emitting device switching mechanism 5 switches the light emitting devices 6, 7, 8, 9, 10, 11 according to instructions from the shift state checking mechanism 4. The letters 12 of each key truck 1 are designed so that the letter portions transmit light. 6.7.8 Light emitting device inside the key top
．． By the light emission of 9.10.11, characters that can be input in the current shift state are displayed on the key tops.

[Effects of the Invention] As explained above, the present invention provides a mechanism for checking the shift state and a mechanism for checking the shift state in a keyboard device of the type in which each key becomes an input key on two sides by interlocking with the shift key. Since it has a mechanism that switches the light emitting device in response to the change in the light emitting device, and a mechanism that displays characters on the key top using a transmitted light method, it is possible to display characters that can be input on the key top depending on the shift state at the time. This has the effect of reducing the occurrence of tie-1 mistakes.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of processing in an embodiment of the keyboard device according to the present invention. FIGS. 2(a) and 2(b) are a plan view and a side view of the key top. FIGS. 3(a) and 3(b) are explanatory diagrams of key tops in a conventional keyboard device. l, 2.3... Shift key 4... Shift status check mechanism 5... Light emitting device switching mechanism 6.7.8.9.10.11... Light emitting device 12...
Character 13...Light-emitting device

Claims (1)

[Claims] In a keyboard device of a type in which each key becomes two or more input keys by interlocking with a shift key, there is provided a mechanism for checking a shift state, and a mechanism for switching a light emitting device in accordance with the shift state. A keyboard device comprising: , and a mechanism for displaying characters on the key tops using a transmitted light method.