WO2012099374A2

WO2012099374A2 - Computer keyboard

Info

Publication number: WO2012099374A2
Application number: PCT/KR2012/000393
Authority: WO
Inventors: 김나경
Original assignee: Kim Na Kyung
Priority date: 2011-01-20
Filing date: 2012-01-17
Publication date: 2012-07-26
Also published as: KR101059059B1; WO2012099374A3

Abstract

Disclosed is a keyboard. The disclosed keyboard comprises: a membrane sheet including a circuit having a plurality of contacts pressed by means of an external force to generate electrical signals; a cover plate which covers the upper surface of the membrane sheet and opens the contacts via through-holes; a plurality of key cups arranged on the through-holes so as to press the contacts as result of being pressed by a user; and a control unit to which signals, generated by the on/off operation of the contacts, are inputted, wherein the keyboard further comprises: a roll key rotatably arranged on a certain key cup of the plurality of key cups to operate in a certain mode; and a switching member which switches the circuit arranged on the membrane sheet on/off in accordance with the operation of the roll key so as to generate electrical signals.

Description

Computer keyboard

The present invention relates to a keyboard used for a computer.

In general, a computer keyboard is a keyboard having various function keys for executing various functions as well as character keys and numeric keys, and is electrically connected to a main processor in a computer system. When any key is pressed in the computer keyboard, the pressed content is converted into an electric signal and then sent to the main processor (CPU) of the computer, and the main processor processes the input signal. Referring to FIG. 1, in a typical keyboard, a plurality of

keys

13, 15, 16, 17, and 18 are arranged on a keyboard body 12 having a substantially rectangular plate shape, including letter keys, numeric keys, and function keys. . Each

key

13, 15, 16, 17, 18 generates an electric signal in response to being pressed by the user and transmits it to the main processor.

The above keys (13, 15, 16, 17, 18) include the Korean-English conversion key (15), the English capitalization key (Caps Lock key, 16), the F key (or "d", 17), and the J key (or "ㅓ" key 18) is also included. At this time, each of the F key (or "D", 17) and J (or "ㅓ", 18) projections (P) indicating the position of the index finger of both hands to hold the stance when typing the computer keyboard Is formed. On the other hand, there are various types of keyboards, and the most widely used among them is a membrane switch type keyboard.

Membrane switch type keyboard is placed on the base plate, the upper part of the base plate, the circuit sheet is formed therein and the contact point is formed at the point where the key is located, and covers the membrane sheet and through the through hole. A cover plate for opening the contact to the upper portion, a rubber dome sitting in the through hole and pressed by the external force to press the contact, and a keycap installed to be slidable on the upper portion of the rubber dome. In this case, the membrane sheet has a structure in which an upper circuit film on which a circuit is formed, an insulating film that insulates an upper and lower circuits, and a lower circuit film on which a circuit is formed are sequentially stacked. That is, the upper circuit film and the lower circuit film are separated by an insulating film, but only a portion having a contact is configured without the insulating film.

The operation principle of the keyboard is as follows. When the key cup is pressed, the rubber dome below moves down, which causes contact at the contacts of the upper circuit film and the lower circuit film to generate a signal, and the generated signal is input to a chip (microcontroller) built into the keyboard. It is recognized whether the key is pressed. The chip embedded in the keyboard generates a bit code according to the input signal, and the generated bit code is transmitted to the main processor of the computer through a keyboard cable (or wireless connection), and the main processor of the computer is received. It decodes the bit signal and puts a letter on the screen or executes a program as a specific key is pressed.

In such a conventional keyboard, the English-English conversion key or the English capitalization key (Caps Lock key) is converted into Korean-English conversion or English capitalization every time the corresponding key cup consisting of one is pressed. Because of this, it is not easy to know whether the current status of the character input mode is the Korean or English mode, or the English uppercase or lowercase mode. Experience the case easily.

For example, if you typed an English letter in the address bar of an Internet screen, the address bar of an e-mail, the ID or password of various sites, or a document processing program, and the Hangul was entered instead of English, There was a lot of trouble to type again after switching input state by pressing Han-Young conversion key. In addition, if you need to enter a case-sensitive English letter, but you typed to enter uppercase English letters, if a lowercase letter is entered, delete the uppercase English letters and press the Caps Lock key After switching the input state by pressing the character conversion key, the trouble of typing again frequently occurred.

The present invention was devised to solve the conventional problems as described above, it is possible not only to easily convert the Hangul or English case, the user can easily grasp the Hangul conversion state or English case conversion state without confusion. An object of the present invention is to provide a keyboard with an improved structure.

The keyboard of the present invention for achieving the above object covers a membrane sheet including a circuit formed with a plurality of contacts formed by the external force to generate an electrical signal and the upper portion of the membrane sheet and through the through hole to the upper portion In the computer keyboard including an opening cover plate, a plurality of key cups located in the upper portion of the through hole and pressed by the user to press the contact point, and a control unit for inputting a signal generated according to on / off of the contact point. A rolling key rotatably installed on any of the plurality of keycups to perform any mode; And a switching member configured to generate an electrical signal by turning on / off a circuit formed in the membrane sheet according to the operation of the rolling key.

The switching member may include a pair of lower roll key terminals spaced from and fixed to the cover plate and spaced apart from each other to be connected to a circuit formed at the membrane sheet; A pair of upper roll key terminals fixed to an inner surface of the key cup, extending downward, spaced apart from each other, and installed to be in electrical contact with the lower roll key terminals; A connection terminal fixed to an inner surface of the key cup and extending in a downward direction and connected to a lower portion thereof, and selectively connecting and energizing the pair of upper roll key terminals spaced apart from each other according to a rolling operation of the roll key; It can be configured to include.

The outer circumferential surface of the roll key is formed in a corrugated shape consisting of a plurality of hills and valleys, and a protrusion is formed in the connection terminal, and the protrusion is pushed back by the acid, so that the connection terminal retreats backward by the hill. The upper roll key terminal and the connecting terminal may be separated from each other, or the protrusion may be accommodated in the valley so that the upper roll key terminal and the connecting terminal contact each other.

The roll key is fixedly installed on an inner surface of the key cup and rotatably supported on an axis formed of a light emitter, and the controller may control the light to be emitted by supplying power to the axis.

The switching member may include a pair of lower LED terminals spaced apart from each other so as to penetrate the cover plate and be connected to a circuit formed at the bottom of the membrane sheet; And a pair of upper LED terminals fixed to an inner surface of the key cup, extending downward from both ends of the shaft rotatably supporting the roll key, spaced apart from each other, and being in electrical contact with the pair of lower LED terminals. It further comprises; The shaft may be configured to receive power through the pair of lower LED terminals and the pair of upper LED terminals.

The roll key may include a first roll key installed on an F key of a keyboard; And a second roll key installed on the J key of the keyboard.

When the first roll key is operated, it may be converted to one of Korean mode or English mode, and when the second roll key is operated, it may be configured to be converted to the other mode of Korean mode or English mode.

When the first roll key is operated, it is converted into English mode, and when the second roll key is operated, it is configured to be converted to Korean mode.

The roll key may include a third roll key installed on a G key of the keyboard; And a fourth roll key installed on the H key of the keyboard.

When the third roll key is operated, it is converted to one of the English uppercase mode or the lowercase letter mode, and when the fourth roll key is operated, it is configured to be converted to the remaining mode among the English uppercase mode or the lowercase letter mode. can do.

The rolling key is formed of a transparent member, and according to the rolling operation of the first rolling key, the controller controls the axis supporting the first rolling key to emit light, and according to the rolling operation of the second rolling key. The controller controls the axis supporting the second roll key to emit light, and according to the rolling operation of the third roll key, the controller controls the axis supporting the third roll key to emit light. According to the rolling operation of the fourth roll key, the controller controls the axis to support the fourth roll key to emit light, so that the user visually emits light emitted through the roll key on which the roll operation is performed. Can be configured to check.

According to the pressing operation of the Hangul conversion key, when the present state is the English mode, the control unit controls to emit light on the axis supporting the first roll key, and when the present state is the Hangul mode according to the pressing operation of the Hangul conversion key, The control unit may be configured to control to emit the axis supporting the second roll key.

According to the above, the present invention can perform the conversion mode more easily because it is possible to convert the Korean-English conversion or the English case by rolling the roll key rotatably installed on the key cup.

In addition, a pair of roll keys are installed respectively, and one of the pairs of the roll keys converts the Korean mode or the English capitalization mode during the English-English case conversion during the English-English mode conversion, and the English mode or the English mode during the Korean-English mode conversion. Since the lowercase mode conversion operation is performed during the uppercase and lowercase letters conversion, the user may reduce confusion about mode conversion to the user, as compared with performing the conversion operation every time a single key is pressed.

In addition, since a pair of roll keys are usually installed on the F key and the J key, which are the positional reference for the detection of both hands, there is an effect that the user can quickly and easily roll the roll key to change modes.

In addition, since the light is emitted through the roll key in which the rolling operation is performed, the user can use the keyboard in the state of accurately recognizing the converted mode of the current state by visually checking the light.

1 is a perspective view of a conventional keyboard,

2 is a view briefly showing the mechanism of a keyboard according to an embodiment of the present invention,

3 is a perspective view of a keyboard according to an embodiment of the present invention;

4 is a view illustrating a state of the keyboard of FIG. 3 as viewed from the lower side;

5 is a view showing a state excluding the cover plate and the membrane sheet in FIG.

6 is a view illustrating a state in which the key cup is excluded from the keyboard of FIG. 3;

7A is a view illustrating a state in which the key cup and the cover plate are excluded from the keyboard of FIG. 3,

FIG. 7B is a view showing another form of the switching member of FIG. 7A,

FIG. 7C is a view showing another form of the switching member of FIG. 7A;

8 is a cross-sectional view illustrating a state in which a connection terminal is displaced as a roll key of the keyboard is rotated according to an exemplary embodiment.

Hereinafter, a keyboard according to an embodiment of the present invention will be described with reference to FIGS. 2 to 8.

2, when the keyboard rolls the roll key 210, the switching member 240 selectively energizes or insulates the circuit to generate a signal, and the generated signal is controlled by the controller (keyboard). It is configured to be input to the chip 270, which is built in. Specifically, a circuit connected to one end of the switching member 240 is connected to a 5V power supply, and a circuit connected to the other end of the switching member 240 is grounded. When the rolling key 210 is not rotated, the switching member 240 is turned on and is in a ground state. When the rolling key 210 is rotated, the switching member 240 is turned off and momentarily 5V electric power. The signal is input to the controller 270. In FIG. 2, the 5V electric signal is input through the input pin 6 of the controller 270, but the controller 270 is programmable, and may be input through other pins other than the input pin 6.

The controller 270 transmits a bit signal to a main processor of the computer through a program stored in the controller 270 according to the input 5V electrical signal, so that the main processor performs a character input or a function corresponding to the bit signal. Make sure you do it. Such a configuration can be easily implemented by changing the program stored in the controller 270 of the conventional keyboard, that is, the chip embedded in the keyboard, and a detailed description thereof will be omitted. Meanwhile, the display unit 212 connected to the controller 270 in FIG. 2 will be described later.

Hereinafter, with reference to FIGS. 3-8, the specific structure of the roll key 210 and the switching member 240 is demonstrated.

Referring to FIG. 3, the rolling key 210 according to an embodiment of the present invention is formed so that a part of the rolling key 210 is exposed to the outside of the upper surface of the key cup 120 through a hole formed in the upper surface of the key cup 120. 210 is inserted into the shaft 212 fixed inside the key cup 120, as shown in Figure 5 is rotatably installed about the shaft 212. Accordingly, the user may rotate the roll key 210 by contacting a portion of the roll key 210 exposed to the outside of the key cup 120. In addition, the roll key 210 is knurling the outer shape is formed into a corrugated shape having a plurality of valleys (210a) and the acid (210b) (see Fig. 8). The shaft 212 of the present embodiment is composed of a light emitting body that receives electricity and emits light, and the rolling key 210 is formed of a transparent material. Therefore, the light generated on the shaft 212 can be confirmed through the rolling key 210 exposed to the outside of the key cup 120.

The switching member 240 is configured to generate an electrical signal by performing an ON / OFF switching operation according to the rotation operation of the roll key 210. To this end, referring to FIG. 4, the membrane sheet 130 is provided with a pair of roll key circuit lines 251 and a pair of LED circuit lines 253. The roll key circuit line 251 and the circuit line 253 are electrically connected to the controller 270.

4 and 5, the switching member 240 includes a pair of lower roll key terminals 241, a pair of upper roll key terminals 243, and a connection terminal 245.

4 to 7A, the pair of lower roll key terminals 241 are penetrated and fixed to the cover plate 110 and are spaced apart from each other so that one end is connected to the pair of roll key circuit lines 251. do.

The pair of upper roll key terminals 243 are spaced apart from each other such that the upper end is fixed to the inner surface of the key cup 120 and extends downward. The lower end of the upper roll key terminal 243 is installed to contact the upper end of the lower roll key terminal 241, and the upper roll key terminal 243 is moved to the lower roll key terminal 241 as the key cup 120 moves up and down. Sliding while in contact. In this case, as shown in FIG. 7A, the upper roll key terminal 243 has a protrusion 243 ′ formed at a side of the lower end facing the lower roll key terminal 243. Accordingly, as the key cup 120 moves up and down, the projections 243 'of the upper roll key terminal 243 slide while being in contact with the side of the lower roll key terminal 243.

The connection terminal 245 is for connecting a pair of upper rolled key terminals 243 spaced apart from each other, and both ends 245a are fixed to both sides of the bottom surface of the key cup 120 to extend downward, and then It is formed to be connected. That is, the connection terminal 245 is formed in a "c" shape so that both ends 245a are installed to be fixed to the bottom surface of the key cup 120. In addition, the connection terminal 245 is provided with an extension piece 245b extending upward from the center toward the side of the roll key 210. In this case, the extension piece 245b is provided with a protrusion 245ba on the side facing the roll key 210, the protrusion 245ba may be accommodated in the bone 210a formed on the outer circumferential surface of the roll key 210. It is formed into a shape.

The switching member 240 according to the present exemplary embodiment may further include a pair of lower LED terminals 246 and a pair of upper LED terminals 247.

The pair of lower LED terminals 246 are installed to be spaced apart from each other such that the pair of lower LED terminals 246 are penetrated through the cover plate 110 and the lower ends thereof are connected to the pair of LED circuit lines 253. In this embodiment, a pair of lower roll key terminals 241 are disposed between the pair of lower LED terminals 246.

The pair of upper LED terminals 247 are spaced apart from each other to extend in a downward direction from both ends of the shaft 212 fixedly installed on the key cup 120. In this case, the lower pair of upper LED terminals 247 is installed to contact the pair of lower LED terminals 246, so that the pair of upper LED terminals 247 are lower LEDs as the key cup 120 moves up and down. It is slidable while being in contact with the terminal 246. In this case, although not shown, the upper LED terminal 247 is configured such that a protrusion such as a protrusion 243 'formed on the upper roll key terminal 243 is formed on the side of the lower end facing the lower LED terminal 246. can do.

In the above configuration, when the roll key 210 is not rolled, the protrusion 245ba of the extension piece 245b is accommodated in the valley 210a of the roll key 210 so that the connection terminal 245 is a pair of upper rolls. In contact with the key terminal 243 (contact state), a pair of upper roll key terminals 243 spaced apart from each other are electrically connected to each other. When the roll key 210 is rolled, the hill 210b of the roll key 210 pushes the protrusion 245ba of the extension piece 245b to separate the connection terminal 245 from the pair of upper roll key terminals 243. (Non-contact state), the pair of upper roll key terminals 243 spaced apart from each other are electrically separated from each other (see Fig. 8).

On the other hand, Figure 7b shows a switching member of a different form than an embodiment of the present invention. According to the present invention, a pair of lower roll key terminals 241a, a pair of upper roll key terminals 243a, and a pair of lower LED terminals 246a and a pair of upper LED terminals 247a slide in direct contact with each other. Rather than being configured, it may be arranged to be spaced apart from each other and connected between the terminals by a conductive spring (S). Accordingly, the distance between the pair of lower roll key terminals 241a and the pair of upper roll key terminals 243a and the pair of lower LED terminals 246a and the pair of upper portions according to the pressing operation of the key cup 120. The distance between the LED terminal 247a may be freely changed, but may be mutually energized through the spring (S).

In addition, Figure 7c shows an embodiment of the present invention and another type of switching member. According to the present invention, a pair of lower roll key terminals 241a, a pair of upper roll key terminals 243a, and a pair of lower LED terminals 246a and a pair of upper LED terminals 247a slide in direct contact with each other. Rather than being configured, it may be configured to be spaced apart from each other, and to connect the conductive copper wires (W) between the terminals. Therefore, the pair of lower roll key terminals 241a and the pair of upper roll key terminals 243a and the pair of lower LED terminals 246a and the pair of upper LED terminals according to the pressing operation of the key cup 120. (247a) The distance can be freely changed, but mutually energized through the copper wire (W) can be made.

Hereinafter, the operation of the keyboard according to the present invention will be described with reference to FIGS. 2, 3, 7A and 8.

In the stopped state without rolling the roll key 210, the protrusion 245ba is accommodated in the valley 210a of the roll key 210 so that the connection terminal 245 and the pair of upper roll key terminals 243 are in contact with each other. Since the pair of upper roll key terminals 243 are electrically connected and grounded, no electrical signal is generated.

When the user rolls the roll key 210 by an external force, the roll key 210 rotates so that the mountain 210b of the roll key 210 pushes the protrusion 245ba to connect the pair of connectors 245 spaced apart from each other. Retract to separate from the upper roll key terminal 243. As a result, the pair of upper roll key terminals 243 are in an electrically separated state, and the switching member 240 is turned off to input an electrical signal of 5V to the controller 270. The control unit 270 outputs the bit signal set in the control unit 270 according to the input electric signal, and transmits the bit signal to the main processor of the computer. In addition, the control unit 270 controls to emit light by supplying power to the shaft 212 (the same as the display unit in FIG. 2). In this case, power is supplied to both ends of the shaft 212 through the pair of lower LED terminals 246 and the pair of upper LED terminals 247 under the control of the controller 270, so that the shaft 212 can emit light. Can be.

Meanwhile, the plurality of valleys 210a and the mountains 210b formed on the outer circumferential surface of the roll key 210 not only push the protrusion 245ba of the connection terminal 245 as described above, but also the user roll key ( 210 has a function to prevent slipping when rolling.

The roll key 210 and the switching member 240 of the present invention are installed on the F key and the J key of the keyboard as the first roll key and the second roll key, respectively, and according to the rolling operation of the roll key 210, the switching member ( 240 may be configured to switch on / off a circuit formed in the membrane sheet 130 so that an electrical signal is input to the controller 270. In this case, the controller 270 generates a specific bit signal for executing the Hangul mode or the English mode according to the operation of the respective roll keys 210 installed on the F key and the J key, and the roll key 210 having the roll operation. The key axis 212 on the) side is controlled to emit light.

Specifically, according to the rolling operation of the rolling key 210 installed in the F key, the switching member 240 installed in the F key is on / off switching operation, so that an electrical signal is input to the control unit 270, and the control unit 270. The controller outputs a bit signal capable of executing the English mode corresponding to the roll key 210 installed at the F key, and at the same time, power is supplied to the shaft 212 installed at the F key to emit light. In addition, according to the rolling operation of the rolling key 210 installed at the J key, the switching member 240 installed at the J key is on / off switching operation, so that an electrical signal is input to the control unit 270, and the control unit 270 is While outputting a bit signal capable of executing the Hangul mode corresponding to the operation of the roll key 210 installed in the J-key, the power is supplied to the shaft 212 provided in the J-key to control light emission. After all, if the current state is Hangul mode, by rolling the roll key 210 installed in the F key is converted to the English mode, and rolls the roll key 210 installed in the J key is maintained in Hangul mode. In addition, when the current state is in the English mode, by rolling the roll key 210 installed in the F key, the English mode is maintained, and the roll key 210 installed in the J key is converted to the Hangul mode.

Therefore, the user can easily roll the roll key 210 installed in the F key to input characters in the English mode, as well as view the light emitted through the roll key 210 installed in the F key. You can confirm that In addition, by rolling the roll key 210 installed in the J key to input characters in the Hangul mode, as well as the light emitted through the roll key 210 installed in the J key, the current state can be confirmed that the Hangul mode. .

On the other hand, in the present embodiment it can be configured with a light emitting body that can emit light of different colors so that the axis 212 provided in the F key and the axis 212 provided in the J key to different colors. For example, the shaft 212 provided in the F key may be configured as a light emitting body emitting blue light, and the shaft 212 installed in the J key may be configured as a light emitting body emitting red light. Therefore, when the user confirms that the blue light is emitted through the roll key 210 installed in the F key, the user can more clearly recognize that the status is in English mode, and the red key through the roll key 210 installed in the J key. By confirming that the color light is emitted, it is possible to recognize more clearly that the present state is Hangul mode. In this way, by distinguishing the colors of light, the user can quickly and surely recognize which mode the current state is.

In addition, according to the present invention, the Korean / English mode conversion is also performed by a normal Korean-English mode conversion key, and the control unit 270 supplies power to the shaft 212 provided in the J key or the F key according to the operation of the Korean-English conversion key. By supplying light can be controlled to emit light. In other words, when the controller 270 outputs a bit signal for the English mode, the controller 270 supplies power to the shaft 212 installed in the F key to emit blue light. When the control unit 270 outputs a bit signal for the Hangul mode according to the pressing operation of the Han-Young conversion key, the control unit 270 supplies power to the shaft 212 installed in the J-key to emit red light. Can be configured to control.

On the other hand, the present invention does not constitute a shaft 212 provided on the J key or F key, but a pair of LEDs are installed at any position of the keyboard, the control unit 270 outputs a bit signal for the English mode When the LED of any one of the pair of LEDs to emit light, the controller 270 may be configured to emit the other LED, when outputting a bit signal for the Hangul mode.

According to the present invention, a third roll key and a fourth roll key and a roll key 210 and a switching member 240 may be additionally installed on the G and H keys of the keyboard, respectively, to perform a case conversion function. That is, a pair is respectively provided on the G key and the H key of the keyboard, and according to the rolling operation of the rolling key 210, the switching member 240 switches the circuit formed on the membrane sheet 130 on / off to generate an electrical signal. May be configured to be input to the controller 270. In this case, the controller 270 generates a specific bit signal for executing the uppercase English mode or the lowercase English mode according to the operation of the respective roll keys 210 installed in the G key and the H key. In addition, the control unit 270 may control to emit light by supplying power to the key shaft 212 on the side of the operation key (210).

In the above, the Korean-English mode conversion is performed by the rolling key 210 and the switching member 240 installed on the F key and the J key, and the rolling key 210 and the switching member 240 installed on the G and H keys. By the case of the English case, but the function can be changed. In addition, the roll key 210 and the switching member 240 may be installed only on the F key and the J key to convert the upper and lower case letters, and in a state where the Ctrl key, the alt key, or the shift key of the keyboard are pressed. The roll key 210 may be configured to perform a scroll function of a web page.

While the invention has been shown and described in connection with preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will appreciate that many changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes, modifications, and equivalents should be considered to be within the scope of the present invention.

The invention can be used in the manufacture of a computer keyboard.

Claims

A membrane sheet including a circuit having a plurality of contact points pressed by an external force to generate an electrical signal, a cover plate covering an upper portion of the membrane sheet and opening the contact portion upward through a through hole, and an upper portion of the through hole. A computer keyboard comprising a plurality of key cups positioned and pressed by a user to press the contact point, and a control unit to which a signal generated according to on / off of the contact point is input.

A roll key rotatably installed on any of the plurality of key cups to perform any mode; And

And a switching member configured to generate an electrical signal by turning on / off a circuit formed in the membrane sheet according to the operation of the roll key.
The method of claim 1,

The switching member,

A pair of lower roll key terminals fixed to the cover plate and spaced apart from each other so as to be connected to a circuit formed at the membrane sheet;

A pair of upper roll key terminals fixed to an inner surface of the key cup, extending downward, spaced apart from each other, and installed to be in electrical contact with the lower roll key terminals; And,

A connection terminal fixed to an inner surface of the key cup and extending in a downward direction and connected to a lower portion thereof, and selectively connecting and energizing the pair of upper roll key terminals spaced apart from each other according to a rolling operation of the roll key; Keyboard comprising a.
The method of claim 2,

The outer circumferential surface of the roll key is formed in a corrugated shape consisting of a plurality of hills and valleys, and a protrusion is formed in the connection terminal, and the protrusion is pushed back by the acid, so that the connection terminal retreats backward by the hill. And the upper roll key terminal and the connecting terminal are separated from each other, or the protrusion is accommodated in the valley so that the upper roll key terminal and the connecting terminal contact each other.
The method of claim 3, wherein

The rolling key is fixedly installed on the inner surface of the key cup and rotatably supported on a shaft made of a light emitting body,

The controller is characterized in that for controlling the power supply to the axis to emit light.
The method of claim 4, wherein the switching member,

A pair of lower LED terminals fixed to the cover plate and spaced apart from each other so as to be connected to a circuit formed on the membrane sheet; And

A pair of upper LED terminals fixed to an inner surface of the key cup, extending downward from both ends of a shaft rotatably supporting the roll key, spaced apart from each other, and installed in electrical contact with the pair of lower LED terminals; More,

The shaft is a keyboard characterized in that the power is supplied through the pair of lower LED terminals and the pair of upper LED terminals.
The method of claim 5, wherein the roll key,

A first roll key installed on the F key of the keyboard; And

And a second roll key installed on the J key of the keyboard.
The method of claim 6,

When the first roll key is operated, the keyboard is switched to one of Korean mode or English mode, and when the second roll key is operated, the keyboard is converted to the remaining mode of Korean mode or English mode.
The method of claim 7, wherein

Operating the first roll key to convert to English mode; and operating the second roll key to convert to Korean mode.
The method of claim 7, wherein the roll key,

A third roll key installed on the G-key of the keyboard; And

And a fourth roll key installed on the H key of the keyboard.
The method of claim 9,

When the third roll key is operated, it is converted into one of the English uppercase mode or the lowercase letter mode. When the fourth roll key is operated, it is converted to the remaining mode among the English uppercase mode and the lowercase English mode. Featuring a keyboard.
The method of claim 10,

The roll key is formed of a transparent member,

According to the rolling operation of the first roll key, the controller controls the axis supporting the first roll key to emit light,

According to the rolling operation of the second roll key, the controller controls the axis supporting the second roll key to emit light,

According to the rolling operation of the third roll key, the controller controls the axis supporting the third roll key to emit light,

In accordance with the rolling operation of the fourth roll key, the controller controls the axis for supporting the fourth roll key to emit light.

The user keyboard is characterized in that the user can visually check the light emitted through the roll key on which the rolling operation is performed.
The method of claim 8,

According to the pressing operation of the Hangul conversion key, when the current state is the English mode, the control unit controls to emit the axis supporting the first roll key,

In response to a pressing operation of the Hangul conversion key, when the status is in the Hangul mode, the controller is configured to control to emit the axis supporting the second roll key.