Character inputting device

Abstract

A character input device is prepared as connecting transparent key switch unit to central processing unit connected with driving unit, connecting liquid crystal display unit to central processing unit, setting transparent key switch unit above liquid crystal display unit. It features that transparent key switch unit is attached on liquid crystal display unit so structure of character input device is compact for being carried easily.

Description

technical field [0001] The present invention relates to a character input device, specifically, to a character input device using a transparent key switch as an input device and a liquid crystal display unit as a display device; the present invention also relates to a character input method, specifically, It relates to a character input method for a character input device having a transparent key switch as an input device and a liquid crystal display unit as a display device. Background technique [0002] The character input device in the prior art is generally a mechanical keyboard, and a display screen is arranged on the top of the keyboard, and the user inputs characters by referring to the icons on the keys of the keyboard. A confirmation key, when the confirmation key is pressed, the previously entered characters will be transmitted to the upper computer connected to it, however, the disadvantage of this input device is that if it is portable, the number of keys is limi...

AI Technical Summary

Problems solved by technology

[0002] The character input device in the prior art is generally a mechanical keyboard, and a display screen is arranged on the top of the keyboard. The user inputs characters by referring to the icons on the keys of the keyboard. At the same time, the display screen above the keyboard displays the characters entered. The keyboard generally includes A confirmation key, when the confirmation key is pressed, the previously input characters will be transmitted to the upper computer connected to it, however, the disadvantage of this input device is that if it is portable, the number of keys is limited and cannot contain too many characters; if the input device is large, it is not portable, and it is not convenient to use in some occasions where space is limited

First of all, the space of the keys is limited and cannot contain many kinds of character information. Therefore, even if the mode switching part is included, the combined characters cannot be many. Secondly, the arrangement of the keys on the keyboard is fixed. If you need to input characters in different modes It needs to be switched repeatedly. In addition, if the user needs to change the input method, the keys must be replaced. Therefore, the user cannot choose the keyboard arrangement according to his actual operation needs or preferences, so it is very inconvenient to use.

[0004] In addition, keyboard input devices in the prior art generally only include a standard keyboard interface and a standard serial bus interface, therefore, the compatibility is not good

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