KR101016948B1 - Input apparatus and method using on-screen direction key - Google Patents

Abstract

The present invention is a device that can easily enter a character by touch, click or drag after assigning letters, numbers, symbols to the on-screen direction key consisting of individual direction keys of the up, down, left, right, center (5 directions) and It is about a method. The method includes the steps of: generating one or more on-screen directional keys by assigning letters, numbers, symbols or functions to individual directional keys; Displaying one on-screen directional key composed of individual directional keys with letters, numbers, symbols or functions arranged in a directional manner; Determining whether there is a letter, number, symbol, or function to be input in the currently displayed on-screen direction key; Selecting a first individual direction key having a character, a number, a symbol, or a function to be input if there is a character, a number, a symbol, or a function to be input; Selecting one corresponding second individual direction key from among the five individual direction keys according to the position of the letter, number, symbol or function to be displayed on the selected first individual direction key; And clicking, touching, or dragging the two selected direction keys in the selected order to input one letter, number, or symbol or execute a corresponding function.

On Screen Direction Key, Left Key, Right Key, Center Key, Text Entry, Input Mode

Description

Character input device and method using on-screen arrow keys {INPUT APPARATUS AND METHOD USING ON-SCREEN DIRECTION KEY}

The present invention relates to a character input device and method using an on-screen in a system equipped with a display device, such as a computer (PC), PMP, mobile phone, smart phone, and more specifically, the top, bottom, left, right, center The present invention relates to a text input device and a method using an on-screen directional key that can easily input characters (or numbers, symbols, etc.) by assigning letters, numbers, and symbols to five on-screen directional keys, and then touch, click, or drag. .

In general, when a numeric key (KEY or button) and a direction key are used together, such as a mobile phone or a remote controller, a Korean character is input using a numeric key with many keys, and a character is assigned by assigning a character to the numeric key. Several techniques are widely known. However, character input on devices such as MP3, PSP, digital cameras, joysticks, etc., where there are no numeric keys and only five directional keys in the top, bottom, left, right, and center, is difficult to implement due to the small number of arrow keys.

A common character input method using a direction key known to date is to build a database of characters to be input, display a series of characters through a search, and then input a selected character by moving the cursor with the direction key. In addition, an on-screen keyboard method is known in which a character in which a keyboard is displayed on a computer monitor screen is displayed and a character is input by clicking a button with a mouse or a touch pen.

However, the conventional text input method using the direction key has a problem that it is cumbersome and takes a long time to go through a plurality of operations for searching and moving the cursor to find a character to be input. In addition, the conventional on-screen keyboard has a problem in that since the keyboard image is large, the contents of the screen cannot be viewed by covering the screen. Particularly, when it is necessary to input a character such as a search word on a web page screen while surfing the web, the conventional on-screen keyboard has a problem in that it is inconvenient to use the web page content and impairs the aesthetics of the screen.

The present invention has been proposed to solve the above problems, an object of the present invention, by placing letters, numbers, symbols, etc. on the on-screen direction keys of the five directions of up, down, left, right, center The present invention provides a character input device and method using an on-screen directional key that can intuitively recognize a direction key to be input so that characters (or numbers, symbols, etc.) can be easily input by one or two touches, clicks, or drags.

According to an aspect of the present invention, there is provided a method of generating one or more on-screen direction keys by assigning letters, numbers, symbols, or functions to individual direction keys; Displaying one on-screen directional key composed of individual directional keys with letters, numbers, symbols or functions arranged in a directional manner; Determining whether there is a letter, number, symbol, or function to be input in the currently displayed on-screen direction key; Selecting a first individual direction key having a character, a number, a symbol, or a function to be input if there is a character, a number, a symbol, or a function to be input; Selecting one corresponding second individual direction key from among the five individual direction keys according to the position of the letter, number, symbol or function to be displayed on the selected first individual direction key; And clicking, touching, or dragging the two selected direction keys in the selected order to input one letter, number, symbol, or execute a corresponding function.

In addition, the apparatus of the present invention for achieving the above object, a display device for displaying one on-screen direction key consisting of five direction direction keys arranged letters and numbers, symbols or functions with directional; Selection means for selecting each individual direction key of the on-screen direction key displayed on the display device; A code table storing codes of letters, numbers, or symbols displayed on the on-screen direction keys; And displaying an on-screen direction key on the display device, selecting a letter, number, or symbol group assigned to the respective direction key when the first individual direction key is input through the selection means, and placing letters, numbers, or symbols of the selected individual direction key. When the second individual direction key corresponding to the direction is input, one letter, number, or symbol of the corresponding direction is selected from the selected letter, number, or symbol group, and the corresponding code in the code table is output to input letters, numbers, or symbols. If a function is selected, the controller may be configured to execute a corresponding function.

The selection means may be any one of a button, a touch screen, or a mouse for selecting individual direction keys consisting of an up key U, a down key D, a left key L, a right key R, and a center key C. One.

According to the present invention, five to five directional keys consisting of up, down, left, right, center, or on-screen directional keys in the form of images are assigned to each individual direction keys to three to five letters, numbers, symbols, functions, etc. and then input the corresponding characters. In order to intuitively recognize the individual direction keys for the purpose of displaying the direction has the effect that you can enter letters, numbers or symbols very easily and quickly. In particular, the present invention is suitable as a character input means for portable electronic products (mobile phones, PMPs, web computers, etc.) because the touch screen is operated by touch or click or drag method using the on-screen direction key, which is easy to display even in a small display device. In the case of laptops, the on-screen direction keys can be displayed on only a part of the monitor screen, so that various characters can be easily entered without covering other screens.

The technical problems achieved by the present invention and the practice of the present invention will be more clearly understood by the preferred embodiments of the present invention described below. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

1 is a view showing an example of an on-screen directional key consisting of five individual direction keys in accordance with the present invention, (a) is an example of a circular direction key and (b) is an example of a rectangular direction key.

On-screen direction key 10 according to the present invention is composed of five individual direction keys arranged in five directions to easily recognize the up, down, left, right, center as shown in FIG. Referring to FIG. 1, the on-screen direction key 10 includes an upward key U disposed above the central key C positioned at the center, a downward key D disposed below, and a left arrow disposed at the left side. (L), and a rightward key R disposed on the right side.

Each of the direction keys U, D, L, R, and C of the on-screen direction key 10 according to the present invention preferably has three to five letters, numbers, or symbols (in some cases, different on-screen direction keys). You can also assign a function to call or a 'function' such as uppercase to lowercase, etc.), which can be 3 to 5 letters or numbers assigned to each individual direction key (U, D, L, R, C) or The symbols are arranged and displayed to have directivity so that the individual direction keys U, D, L, R, and C to be intuitively recognized. Therefore, the user can easily recognize the direction key for inputting the desired character only by the position of the characters displayed on the on-screen direction key 10, so that the user can easily input the desired letter, number or symbol.

2 and 3 are examples in which three letters (or numbers or symbols) are assigned to individual direction keys U, D, L, R, and C according to the present invention, and FIGS. 4 to 6 are individual direction keys U An example of assigning four letters (or numbers or symbols) to, D, L, R, C respectively. FIG. 7 shows five letters (or numbers or letters) for individual direction keys (U, D, L, R, C). Symbol), and FIG. 8 illustrates an example of using a plurality of on-screen direction keys to which different characters (or numbers or symbols) are assigned when there are many kinds of characters (or numbers or symbols) to input. Each individual direction key (U, D, L, R, C) may be assigned a letter, number, symbol, figure, or function. Hereinafter, for convenience of description, it will be collectively referred to as 'character'.

[3 letter assignment example]

FIG. 2 is a view showing an arrangement of three characters in a horizontal direction on an up key U and a down key D according to the present invention, such that a left key U, a center key C, and a right key R are arranged in a horizontal direction. 3 is an example of selecting one letter, and in FIG. 3, three letters are disposed in the vertical direction to the left key L and the right key R according to the present invention. This is an example of selecting one letter with the key C and the down key D.

Referring to FIG. 2, "a, b, c" is assigned to the uplink key U and displayed horizontally, and "1,2,3" is assigned to the downkey D and displayed horizontally. Therefore, to input "a" on the left side of the up key (U), click the 'up key (U)' and 'left key (L)' or touch or drag the up key (U) to the left key (L). In order to input the "b" displayed at the center of the up key (U), click the up key (U) and the center key (C) or touch or press the center key at the up key (U). It can be seen that it is necessary to drag with the key (C), in order to input the "c" displayed on the right side of the up key (U), click the up key (U) and the right key (R) or touch or up It can be seen that the drag needs to be dragged from the key U to the right R key. Here, the 'click' includes a button operation using a mouse or a direction key, the 'touch' includes a touch using a hand or a tool when a touch panel (touch screen) is installed, and the 'drag' includes a mouse or a hand or a tool. It includes a drag operation using.

In the same way, "1" in the down key (D) is input by clicking the down key (D) and the left key (L) or by dragging from the down key (D) to the left key (L), and "2" Click the down key (D) and the center key (C) or touch or drag the down key (D) to the center key (C) to enter, and "3" clicks the down key (D) and the right key (R). Or touch and drag down from the down key (D) to the right key (R).

Referring to FIG. 3, "a, b, c" is assigned to the left key L and displayed vertically, and "1, 2, 3" is assigned to the right key R and displayed vertically. Therefore, in order to input "a" located on the upper side from the left key (L), click the left key (L) and the up key (U) or touch or drag from the left key (L) to the up key (U). In order to input the "b" displayed at the center of the left key (L), click the left key (L) and the center key (C), or touch or press the left key (L) to the center. It can be seen that it is necessary to drag with the key C. In order to input the "c" displayed at the lower side from the left key L, click the left key L and the down key D or touch or turn left. It can be seen that it is necessary to drag from the key L to the down key D.

In the same way, "1" in the right key (R) is input by clicking the right key (R) and the up key (U) or by dragging from the right key (R) to the up key (U), and "2" Click the right key (R) and the center key (C) or touch or drag the right key (R) to the center key (C) for input, and "3" clicks the right key (R) and the down key (D). Or drag by dragging from the right or down key (R) to the down key (D).

[4 character assignment example]

Figure 4 according to the present invention arranges three characters in the horizontal direction on the up key and down key, and further arranges one character on the lower side or the upper side, the left, middle, right key and the down key arranged in the horizontal direction or An example of a four-character arrangement in which one character is selected by the up key is shown. FIG. 5 shows three characters arranged in the vertical direction to the left and right keys according to the present invention. This is an example of 4-character arrangement in which one character is selected by the up, middle, down key and the right or left key arranged in the vertical direction.

Referring to FIG. 4, "a, b, c" is assigned to the uplink key U and displayed horizontally, and "d" is displayed below the horizontal line. 2, 3 "are assigned and displayed horizontally, and" 4 "is displayed above the horizontal line. Accordingly, "a, b, c" of the up key U is displayed in the same manner as the three-character assignment method described above, and thus the left key, the center key, and the right key are input.

The "d" displayed below the "a, b, c" line arranged horizontally on the up key U is clicked on the up key U and the down key D, or touched or down from the up key U. Input by dragging with key D.

In the same way, the "d" displayed on the upper side of the "1, 2, 3" line arranged horizontally in the down key D is clicked on the down key D and the up key U, or touched or the down key D is displayed. Input by dragging from the up key (U).

Referring to FIG. 5, "a, b, c" is assigned to the left key L and is vertically displayed, and "d" is displayed on the right side of the vertical line. 2, 3 "is assigned and displayed vertically, and" 4 "is displayed to the left of the vertical line. Therefore, "a, b, c" of the left key (L) is displayed in the same manner as the three-character assignment method described above, so input the same as the up key, the center key, and the down key.

And the "d" displayed on the right side of the "a, b, c" line arranged vertically in the left key (L) is clicked on the left key (L) and the right key (R) or touched by the right or left key (L) Input by dragging with the key (R).

In the same way, the "4" displayed on the left side of the "1, 2, 3" line vertically arranged on the right-side key (R) is clicked on the right-side key (R) and the left-side key (L) or touched or the right-side key (R). Input by dragging from the left key (L).

6 is an example of a four-character arrangement in which four characters are arranged in four directions of a center key and then one character is selected by up, down, left, and right keys according to the present invention.

Referring to FIG. 6, the central key C displays characters in four directions along the top, bottom, left, and right sides. Therefore, "a" displayed on the upper side is inputted by clicking the center key (C) and the up key (U) or by touching or dragging from the center key (C) to the up key (U), and "b" displayed on the left is the center key. Click (C) and the left key (L) or touch or drag from the center key (C) to the left key (L) to enter, "c" displayed on the lower side to the center key (C) and down key (D) Enter by clicking or dragging from the touch or center key (C) to the down key (D), and the "d" displayed on the right is clicked on the center key (C) and the right key (R), or from the touch or center key (C) Drag with the right key (R) to enter. In the case of assigning three letters to the central key (C), which has not been described above, the letters are displayed only in three of four directions.

 [5 character assignment example]

7 is an example of a five-character arrangement in which five characters are placed on each individual directional key corresponding to five directional keys, and one letter is selected by the respective individual directional keys.

Referring to FIG. 7, five characters are assigned to each of the individual direction keys U, D, L, R, and C, and the five characters are displayed by being arranged up, down, left, right, and center. Therefore, 4 characters out of 5 characters can be input in the same way as in the description of the 4 character assignment method above, and the remaining 1 character is a character located in the same direction as the individual direction keys on which the character is displayed. Enter it.

For example, the character displayed on the horizontal line in the up key U is input by double-clicking or touching the up key U. In the same way, the character displayed to the left of the vertical line in the left key (L) is entered by double-clicking or touching the left key (L), and the character displayed in the center of the center key (C) is double-clicked the center key (C) or Touch to enter. In the case of the down key (D) and the right key (R), the fifth character located in the same direction is inputted by double-clicking the down key (D) or the right key (R).

Like this, when five characters are placed on five individual direction keys (U, D, L, R, C), up to 25 kinds of letters or numerals can be entered. When it is easier to recognize the division according to the input mode, it is preferable to use a plurality of on-screen direction keys as shown in FIG.

[Example using multiple on-screen direction keys]

8 illustrates an example of generating on-screen direction keys according to a plurality of characters or input modes by generating a plurality of on-screen direction keys assigned different characters according to the present invention.

Referring to FIG. 8, when a plurality of on-screen direction keys 10-1 to 10-4 are adopted, when only one of the on-screen direction keys is displayed, a character to be input to the currently displayed on-screen direction key is not assigned. You can call up other onscreen arrow keys to enter the desired character. At this time, to call another direction key, use one of 5 individual direction keys currently displayed as a call function to call another on-screen direction key. In FIG. 8, 'm1' indicates that the second on-screen direction key 10-2 is called and displayed when the upward key U is clicked on the first on-screen direction key 10-1, and 'm2' is the second on-screen direction key 10-1. Clicking the up key U in the on-screen direction key 10-2 indicates returning to the first on-screen direction key 10-1. 'm3' indicates jumping to the third on-screen direction key 10-3 when the center key C is clicked on the first on-screen direction key 10-1, and 'm4' indicates a third on-screen direction key 10 -3) indicates jumping to the fourth on-screen direction key 10-4, and 'm5' indicates jumping from the fourth on-screen direction key 10-4 to the first on-screen direction key 10-1. .

As such, a method of calling another on-screen direction key from the currently displayed on-screen direction key can be designed in various ways, and in particular, can be conveniently defined according to the input mode. For example, after moving to another on-screen direction key based on one on-screen direction key, it may automatically return to the default on-screen direction key.

9 is a flowchart illustrating a procedure for inputting text using an on-screen direction key according to the present invention, and FIG. 10 is a configuration example of a character input apparatus using an on-screen direction key that can be implemented in portable terminals. Is an example of applying the on-screen direction key according to the invention on a computer screen.

According to the present invention, a procedure for inputting a character using the on-screen direction key is as shown in FIG. 9, by generating a character at least one on-screen direction key by assigning a letter to each individual direction key (S1) Displaying one on-screen direction key consisting of individual direction keys disposed at step S2; determining whether there is a character to be input in the currently displayed on-screen direction key; Calling up another on-screen direction key (S4); if there is a character to be input, as a result of the determination; selecting an individual direction key having the character to be input (S5); and corresponding individual direction key according to the position of the character to be displayed displayed on the selected individual direction key It is composed of a step (S6) of selecting, and a step (S7) of inputting a single character by clicking, touching or dragging the two selected direction keys.

In addition, according to the present invention, the apparatus for inputting a character using the on-screen directional key is one on-screen directional key consisting of individual directional keys in five directions arranged with a letter, number or symbol directionally as shown in FIG. A display device 23 for displaying 10), selection means for selecting each individual direction key displayed on the display device 23, and codes for storing codes of letters, numbers or symbols displayed on the on-screen direction key 10; On-screen direction key 10 is displayed on the table and the display device 23, and when the first individual direction key is input through the selection means, a letter, number, or symbol group assigned to the individual direction key is selected, and the character or If the second individual direction key corresponding to the number or symbol placement direction is entered, the corresponding direction among the selected letters, numbers or symbol groups Selecting one of a letter or number or symbol and outputs the code of the code table is composed of control section 22 to input a letter or number or symbol.

The selecting means may be a direction key button 21 or a touch screen for selecting individual direction keys consisting of an up key U, a down key D, a left key L, a right key R, and a center key C. 24, 24) or a mouse can be implemented. Referring to FIG. 10, the controller 22 displays the on-screen direction key 10 on the LCD display 23, and according to a user's manipulation, the direction key 21, the touch screen 24, and the touch screen driver 25. Through receiving the selection of the individual direction key through the code of the corresponding character is transmitted to the character processing unit (26).

In addition, according to the present invention, an on-screen direction key is implemented on a computer screen to use a web service. As shown in FIG. 11, the keyboard 31, the mouse 32, and the monitor 34 are connected to the computer main body 33. On-screen direction key 10 is displayed on the screen 38 of the monitor. The computer main body 33 is connected to the network 36 via a modem 35, and can access web sites 37 connected to the network by driving a web browser or the like, and on-screen direction keys ( 10) can be displayed. Referring to FIG. 11, in the on-screen direction key 10, five individual direction keys are normally selected by the mouse 32. Before being selected, all keys are displayed in a bright state, and the keys to be selected by the mouse 32 are darkened. It is also possible to display a key to be selected. As described above, a desired character may be input by clicking or dragging the selected individual direction keys.

On the other hand, the on-screen direction key according to the present invention can be implemented in various ways depending on the input mode, when the input mode is divided into English mode, Korean mode, Japanese mode, etc. in the English mode, as shown in Figure 12 to 15 four types of on You can define the screen direction keys to input English letters (uppercase / lowercase letters), numbers, symbols, etc. If necessary, you can also convert lowercase letters to uppercase after defining a lowercase-capitalization function. In addition, in Korean mode, as shown in FIGS. 16 to 20, five types of on-screen direction keys are defined to input Korean, English (lowercase / uppercase), numbers, and symbols.

[English mode]

12 to 15 are examples of screens of the on-screen direction keys for inputting alphabets, numbers, symbols, etc. in the English mode. In FIG. 12, each individual direction key of the on-screen direction key includes an up key U, a down key D, a left key L, a right key R, and a center key C as described above. Reference numerals are omitted because the direction keys can be easily identified.

Referring to FIG. 12, the display apparatus includes a character display window 40 displaying characters input together with the on-screen direction key 10, a clear button 42 for erasing all input contents, and a character input method. A HELP button 44 for guiding the display and a CLOSE button 46 for terminating the on-screen direction key 10 are displayed. Clicking the center key C in the on-screen direction key 10 of FIG. 12 invokes the on-screen direction key of FIG. 13, and sequentially clicks the upward key U to sequentially display the on-screen direction keys of FIGS. 14 and 15. Called. The method of inputting characters by looking at each of the on-screen direction keys is the same as described above, and further description thereof will be omitted.

However, instead of dragging twice to input the same character, three individual direction keys may be dragged successively to input the character to be input by dragging twice. For example, when inputting "aa", instead of dragging the "up key (U) + left key (L)" twice, the "up key (U) + left key (L) + up key (U) You can type more quickly by dragging then.

[Hangul mode]

16 to 20 illustrate examples of a screen of an on-screen direction key for inputting Korean, English, numbers, symbols, etc. in the Korean mode.

Referring to FIG. 16, the display apparatus includes a text display window 40 for displaying characters input together with the on-screen direction key 10, a clear button 42 for erasing all input contents, and a text input method. A help button 44 and a close button 46 for terminating the on-screen direction key 10 are displayed. The input method of consonants or vowels displayed on the on-screen direction key of FIG. 16 is the same as described above.

However, double consonants among consonants are input by dragging three separate direction keys successively, and double vowels such as "ㅠ" among vowels input the corresponding short vowels such as "TT" twice (or drag three successive direction keys successively). Method), “-” is input by dragging from the left key to the right key, and “ㅣ” is input by dragging from the up key to the down key.

For example, in FIG. 16, the consonant "a" is input by the "up key U + the left key L", and the consonant "ㄲ" is dragged from the up key U to the left key L, and then left. The key L can be easily entered by dragging the 'up key U + left key L + up key U' back to the up key U again. In addition, short vowel "ㅗ" is inputted as "center key (C) + up key (U)", and double vowel "ㅛ" is inputted with "center key (C) + up key (U)" twice or center key (C). Drag in the up key (U) and return to the center key (C) again by dragging the 'center key (C) + up key (U) + center key (C)'.

[Example of Japanese On-Screen Rectangle Key]

21 is an example of an on-screen directional key screen when Japanese is input according to the present invention. In the case of Japanese, hiragana and katakana can be assigned to five individual direction keys and input in a manner similar to the Korean input method described above.

In the above description, the present invention has been described with reference to an embodiment shown in the drawings, with reference to the case where the characters are Korean and English characters, but also characters of various other languages such as Japanese characters, Greek characters, Roman characters, Russian characters, Arabic characters, etc. Can be applied.

1 is a view showing an example of an on-screen directional key consisting of five individual direction keys in accordance with the present invention,

2 and 3 are examples of assigning three letters (or numbers or symbols) to individual direction keys U, D, L, R, and C according to the present invention, respectively.

4 to 6 are examples of assigning four letters (or numbers or symbols) to individual direction keys U, D, L, R, and C according to the present invention, respectively.

7 is an example in which five letters (or numbers or symbols) are respectively assigned to individual direction keys U, D, L, R, and C according to the present invention.

8 illustrates an example of using a plurality of on-screen arrow keys assigned different characters (or numbers or symbols) when there are many kinds of characters (or numbers or symbols) to input.

9 is a flowchart illustrating a procedure for inputting a character using an on-screen direction key according to the present invention;

10 is a configuration example of a text input device using an on-screen direction key that can be implemented in portable terminals,

11 is an example of applying the on-screen direction key according to the invention on the computer screen,

12 to 15 are examples of screens of the on-screen direction key for inputting alphabets, numbers, symbols, etc. in the English mode;

16 to 20 are examples of screens of the on-screen direction key for inputting Korean, English, numbers, symbols, etc. in the Korean mode;

21 is an example of an on-screen directional key screen when Japanese is input according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10,10-1 ~ 10-4: On-screen direction key 20: Character input device

21: arrow keys 22: control unit

23: display device 24: touch screen

25: touch screen driver 26: character processing unit

31: Keyboard 32: Mouse

33: computer main body 34: monitor

35: modem 36: network

37: Website

Claims (15)

The individual direction keys are divided into a center key located at the center, an up key located above the central key, a down key located downward of the central key, a left key positioned to the left of the central key, and a right key positioned to the right of the central key. Assigning letters, numbers, symbols, or functions to a group, and in each individual direction key, one or more of the five individual direction keys are assigned to select one of the letters, numbers, symbols, or functions of the group according to the position of the character. Generating an on-screen direction key; Displaying one on-screen directional key by arranging letters, numbers, symbols, or functions on the individual directional keys of the on-screen directional key to have a predetermined directionality in left, right, center, up, and down directions; Determining whether there is a letter, number, symbol, or function to be input in the currently displayed on-screen direction key; If the character, number, symbol, or function to be input is present in the currently displayed on-screen direction key, selecting the first individual direction key displaying the character, number, symbol, or function to be input; A second individual direction key is selected from among five individual direction keys divided into up, down, left, right, and center according to the display position of the letter, number, symbol, or function to be displayed on the selected first individual direction key. step; And Clicking, touching or dragging the selected two individual direction keys in the selected order to enter the corresponding letters, numbers, symbols or executes the corresponding function After selecting the first individual direction keys, intuitively select the corresponding second individual direction keys among the five individual direction keys divided into up, down, left, right, and center according to the display position of letters, numbers, symbols, or functions displayed on the first individual direction keys. Character input method using the on-screen direction keys, characterized in that to make a selection. The method of claim 1, wherein displaying the one on-screen direction key If three letters, numbers, symbols, or functions are assigned to an up or down key, Character input method using the on-screen direction key, characterized in that three letters, numbers, symbols or functions are arranged in the horizontal direction and displayed to be selected by the left key, the center key, or the right key. The method of claim 1, wherein displaying the one on-screen direction key When three letters, numbers, symbols or functions are assigned to the left or right key Character input method using the on-screen direction key, characterized in that three letters, numbers, symbols or functions are arranged in the vertical direction and displayed to be selected by the up key, the center key, or the down key. delete The method of claim 1, wherein displaying the one on-screen direction key If four letters, numbers, symbols, or functions are assigned to an up or down key, Three letters, numbers, symbols, or functions are placed horizontally and selected by the left, center, or right keys, On-screen direction keys, characterized in that the remaining one letter or number, symbol or function is arranged in the horizontal or downward direction of the three letters or numbers, symbols or functions to be selected by the down key or the up key. Character input method using. The method of claim 1, wherein displaying the one on-screen direction key When four letters, numbers, symbols, or functions are assigned to the left or right key Three letters, numbers, symbols, or functions are placed vertically and selected by up, center, or down keys, An on-screen directional key characterized in that the other one letter or number, symbol or function is arranged to the right or left of three letters or numbers, symbols or functions arranged vertically and displayed for selection by the right or left key. Character input method using. The method of claim 1, wherein displaying the one on-screen direction key If four letters, numbers, symbols, or functions are assigned to the center key, 4. A method of inputting characters using on-screen directional keys, characterized in that four letters, numbers, symbols, or functions are arranged in four directions and displayed for selection by one of an up key, a down key, a left key, or a right key. The method of claim 1, wherein displaying the one on-screen direction key If five individual letters, numbers, symbols or functions are assigned to each individual direction key, Characters using on-screen directional keys, characterized in that five letters, numbers, symbols, or functions are arranged in five directions and displayed for selection by any one of up key, down key, left key, right key, or center key. Input method. The method of claim 1, wherein the step of bringing up the other on-screen direction key Character input method using the on-screen direction key, characterized in that when clicking any one of the five individual direction keys to bring up the other on-screen direction key. The method of claim 1, wherein generating the on-screen direction key Character input method using the on-screen direction keys, characterized in that for generating a series of on-screen direction keys for inputting the relevant letters, numbers, symbols or functions according to the input mode. The on-screen display of claim 1, wherein the step of inputting a single letter, number, or symbol by dragging inputs a character to be input by dragging twice by dragging three separate direction keys successively. Character input method using direction keys. The method of claim 11, wherein the character input method comprises: In the case of the Korean input mode, a double consonant or a double consonant is dragged from the first individual direction key to the second individual direction key, and then returned to the first individual direction key and input by one drag. . The method of claim 1, wherein the input method is Character input method using the on-screen direction key, characterized in that applied to a portable electronic device or a computer equipped with a display device. A display device for displaying one on-screen direction key composed of individual direction keys in five directions in which letters, numbers, symbols, or functions are arranged with direction; Selection means for selecting each individual direction key of the on-screen direction key displayed on the display device; A code table storing codes of letters, numbers, or symbols displayed on the on-screen direction keys; And The on-screen direction key consisting of five individual direction keys divided into an up key, a down key, a left key, a right key, and a center key is displayed on the display device, and when a first individual direction key is input through the selection means, When the assigned letter, number, or symbol group is selected, and the second individual direction key corresponding to the arrangement direction of the letter, number, or symbol of the selected first individual direction key is input, one of the corresponding directions among the selected letter, number, or symbol group is input. Selecting a letter, number or symbol of the to output the corresponding code in the code table to input a letter, number or symbol, and if the function is selected, including a control unit for executing the function After selecting the first individual direction keys, intuitively select the corresponding second individual direction keys among the five individual direction keys divided into up, down, left, right, and center according to the display position of letters, numbers, symbols, or functions displayed on the first individual direction keys. Character input device using the on-screen direction keys, characterized in that the selectable. The method of claim 14, wherein the selecting means, It is any one of a button, a touch screen, or a mouse for selecting an individual direction key consisting of an up key (U), a down key (D), a left key (L), a right key (R), and a center key (C). Character input device using the on-screen direction key.

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