KR20050017706A - Input Button in Mobile Communication Terminal using Organic Electro Luminescent, Input Button for Computer Keyboard - Google Patents

Abstract

PURPOSE: An input button for a mobile terminal using organic EL(Electro-Luminescence) elements and an input button for computer keyboards are provided to comprise organic EL elements in input buttons of the terminal, so that numbers or characters of each input button can be changed. CONSTITUTION: An input button for a mobile terminal using organic EL elements includes a base(120), an organic EL substrate connector(110), a push button switch(130), and an organic EL sheet(100). The base is electrically coupled with a controller of the mobile terminal. The organic EL substrate connector is coupled with an upper portion of the base. The push button switch is coupled with the upper portion of the base. The organic EL sheet is attached to the organic EL substrate connector and displays an image having at least one of varying numbers, texts, and symbols.

Description

Input Button in Mobile Communication Terminal using Organic Electro Luminescent, Input Button for Computer Keyboard}

The present invention relates to an input button for a mobile communication terminal using an organic EL, an input button for a computer keyboard, and more particularly to light emission using an organic EL for an input button used for input of numbers or characters in a mobile communication terminal such as a mobile phone. The present invention relates to an input button of a mobile communication terminal using an organic EL, which is equipped with a device and can change various numbers or letters of the input button.

The input button of a conventional mobile phone is displayed numbers and letters or symbols, and when the corresponding button is pressed, the numbers or letters displayed on the buttons are input to the mobile phone and perform a function corresponding to the symbols.

To this end, a base having a circuit connected to a control unit of a mobile phone, an adhesive tape, a conductive tape, and a push part of a button are provided. The conductive tape is configured in a dome shape with respect to the base and contacts the base by the pressing portion of the button. When the pressing portion is released, the conductive tape returns to the dome shape and inputs a signal in a way that the contact is broken.

In addition, there is disclosed a technology that includes a light emitting device on the input button for the operation of the mobile phone at night or aesthetics of the mobile phone, mainly a light emitting diode (LED) is attached to the base to emit light or to the organic EL sheet around the button The method of emitting light by placing it is used.

Organic EL (Electro Luminscence) is basically called an organic light emitting device, which is a device that sends electric current to organic materials and converts its electrical energy into optical energy. Recombination in organic molecules forms a magnet and emits light.

The difference from the LED is that the organic light emitting device emits light by recombination light through its own shape and in the form of crystal in the semiconductor, but emits light in each molecule in the organic material.

The structure of the sheet applied to such an organic EL is shown in FIG.

First, the indium tin oxide (ITO) 4 disposed on the upper portion is often manufactured by sputtering on an ITO film, and generally uses an optical grade polyester film as a base.

And a fluorescent layer 8 is printed on the back of the ITO film is printed with a fluorescent material. The fluorescent material can emit various colors based on the basic three colors of green, blue, and yellow.

Printing of the fluorescent layer 8 is smooth and well aggregated while the dispersion of the fluorescent material particles is extremely well achieved to obtain a uniform light emitting effect.

On the back side of the fluorescent layer 8, a dielectric layer 10 made of barium titanate or the like is printed. The dielectric layer 10 is printed to the outside of the fluorescent layer 8, which prevents electrical contact of the ITO layer 4 constituting the transparent electrode 6, thereby maintaining electrical stability.

On the back side of the fluorescent layer 8, a back electrode 12 of appropriate thickness is printed with conductive ink. In addition, since the phosphor 8 is excited between two electrodes 6 and 12 on both sides, only the portion where light emission is required to reduce waste of ink is printed.

On the back side of the back electrode 12, the back electrode 12 is protected, and in order to protect the organic EL from moisture, printing using a material having excellent insulation and moisture resistance, or using film or sheet paper having excellent insulation and moisture resistance. Layer 14 is formed.

The power supply terminals 6a and 12a protrude from the side surfaces of the electrodes 6 and 12, respectively, and the inverters 18 to which DC power or AC power can be applied are connected to the power supply terminals 6a and 12a. Thus, the power required for surface emission of organic EL is supplied.

The light emitted by organic EL is a cold light without heat and there is no risk of fire and it is completely waterproof so there is no risk of electric shock and can be used indoors and outdoors. The light color is provided with basic colors such as green, blue and yellow red depending on the composition of the phosphor. It is possible to design light weight and ultra thin and to be applied in various fields.

On the other hand, there is disclosed a technology for emitting a variety of colors by installing an LED or an organic EL on each key of the keyboard which is one of the computer input device.

However, according to the prior art, by emitting light of various colors on the input button of the mobile phone or the keyboard, the effect of enhancing the visual effect or convenience of key manipulation at night is produced.

If you play a game with a mobile phone or use an electronic organizer function, instead of searching for the function by number, the input button displays an icon representing the function, and if you press it, the technology to operate the function corresponding to the icon is not disclosed. I can't.

In addition, when the LCD or LED is used for the input button, the power consumption is increased and the screen is enlarged. Therefore, it is impossible to achieve the purpose of a small mobile communication terminal in pursuit of miniaturization and low power.

On the other hand, if you need to input a language that is not displayed on the keyboard, such as Japanese, while you are working on a document using a computer, the keyboard of the keyboard changes to a shape that represents Japanese characters. Is not disclosed.

The present invention has been made in order to solve the above problems, a mobile communication terminal using an organic EL to provide a convenient use of the mobile phone to change the displayed characters or symbols by having an organic EL on the input button of the mobile phone The purpose is to provide an input button.

In addition, an object of the present invention is to provide an input button of a mobile communication terminal using an organic EL that can change the design of the input button of the mobile phone according to the user's taste.

It is another object of the present invention to provide an input button of a mobile communication terminal using an organic EL having an organic EL on a key of a computer keyboard to change the display of the keyboard.

In addition, an object of the present invention is to provide an input button of a mobile communication terminal using an organic EL to output a high-quality image even at low power by using an organic EL as a light emitting material instead of a light emitting device such as LED or PDP. .

The input button of the mobile communication terminal using the organic EL according to an embodiment of the present invention for achieving the above object is a base electrically connected to the control unit of the mobile communication terminal; An organic EL substrate connecting portion provided in contact with an upper portion of the base; A push button switch provided in contact with an upper portion of the base; And an organic EL sheet attached to an upper portion of the organic EL substrate connection unit and outputting one or more images of one or more of numbers, letters, and symbols according to a signal input from the controller.

The present invention is composed of a transparent body for passing the image output from the organic EL sheet, has a dome shape surrounding the organic EL sheet, the lower end of the button protector which is in contact with the push button switch; further includes.

Here, the organic EL sheet outputs an image corresponding to the changing signal when the signal input from the controller changes, and when the push button switch is pressed, the organic EL sheet performs a function corresponding to the image output by the organic EL sheet. It features.

The input button of the mobile communication terminal using an organic EL according to another embodiment of the present invention for achieving the above object is a base electrically connected to the control unit of the mobile communication terminal; An organic EL substrate connecting portion provided in contact with an upper portion of the base; A connection circuit electrically connecting the control unit of the mobile communication terminal and the organic EL substrate connection unit; And an organic EL sheet attached to an upper portion of the organic EL substrate connection unit and outputting one or more images of one or more of numbers, letters, and symbols according to a signal input from the controller.

Here, the organic EL sheet outputs an image corresponding to the changing signal when the signal input from the controller changes, and when the push button switch is pressed, the organic EL sheet performs a function corresponding to the image output by the organic EL sheet. It features.

An input button for a computer keyboard having an input button as an input means according to another embodiment of the present invention is included.

Hereinafter, the present invention will be described with reference to the drawings.

2A and 2B are structural diagrams showing the configuration of an input button (hereinafter referred to as an "input button") of a mobile communication terminal using an organic EL according to an embodiment of the present invention will be described with reference to this.

The input button includes an organic EL sheet 100, an organic EL substrate connection unit 110, a base 120, a push button switch 130, and a button protector 140.

The organic EL sheet 100 is a light emitter using an organic light emitting device according to the prior art, and outputs various numbers, letters, symbols, etc. according to a signal input from a controller (not shown) of the cellular phone.

As described above, the organic EL is suitable for a small image device because it can output a high quality image even at low power as compared to LED, LCD, PDP and the like.

The organic EL substrate connection unit 110 is attached to the lower portion of the organic EL sheet 100 and transmits an image output signal to the organic EL sheet 100.

The base 120 is electrically connected to the control unit and supports the organic EL substrate connection unit 110 and the push button switch 130.

The push button switch 130 is positioned above the base 120 and is configured to allow electrical signals to pass through only while being pressed by pressure.

Since the image output by the organic EL sheet 100 and the signal input of the push button switch 130 use conventional techniques, detailed description thereof will be omitted.

The button protector 140 has a dome shape in which the lower portion is connected to the push button switch 130 and is formed in a structure that does not contact the organic EL sheet 100 and surrounds it.

In addition, the button protector 140 is preferably made of a transparent plastic material, and is made slightly convex to exhibit a convex lens effect. Therefore, even a small sized image will be enlarged to be sufficiently discernible to the user.

When the user presses the button protector 140, the button protector 140 is pushed down and pushes the push button switch 130. In this way, the size of the inner surface of the button protector 140 is adjusted so as not to directly contact the organic EL sheet 100 in the pressed state.

When the button 1 is displayed on the organic EL sheet 100, the number 1 is displayed on the display window of the mobile communication terminal. In addition, when the button which is output the letter a is pressed, the letter a is displayed. Accordingly, by outputting a specific character to each button by the output signal of the controller, various types of symbols, characters, figures, etc. can be displayed in addition to simple numbers or characters.

In addition, when using the electronic organizer function built in the mobile phone, the icons such as the phone book, calendar, calculator, and stopwatch are displayed on the input button in the electronic organizer mode, and each button corresponds to the icon displayed on the corresponding button. To make it work.

This may be possible by controlling a specific function in the control unit of the mobile communication terminal and displaying an icon representing the function on the input button.

An example of such use is shown in FIG. 3, which is a conceptual diagram illustrating a mobile communication terminal to which an input button is applied according to an embodiment of the present invention.

As shown in FIG. 3, the input button can be decorated by emphasizing numbers, internal functions of the phone, and alphabetic characters. The function buttons of each game can be displayed when playing a game using a mobile communication terminal.

4A and 4B are structural diagrams illustrating a configuration of an input button according to another exemplary embodiment of the present invention, which will be described with reference to the drawings.

4A and 4B illustrate an organic EL button utilizing a button unit installed in an existing mobile communication terminal. The organic EL sheet 210 and a connection circuit 220 are inserted into a pad part of a button unit of a mobile communication terminal. The input button can be used.

The organic EL sheet 210 and the connection circuit 220 are inserted into the end surface of the rubber pad portion, and the connection circuit 220 is connected in the cross section so that it can be connected to the substrate by one connector.

This structure is different from the dome shape, so the organic EL sheet 210 is moved, so that the margin of the circuit is required as much as the moving height when configuring the circuit.

To this end, the base 220 and the button switch 230 supporting the organic EL sheet 210 are provided.

The connection circuit 220 is connected to the control unit of the mobile communication terminal and transmits a control signal so that various numbers or letters can be displayed on the input button.

On the other hand, Figure 5 is a structural diagram showing the configuration of an input button according to another embodiment of the present invention, it will be described with reference to this.

The input button is provided with an organic EL substrate connection part 310 and an upper protective body 320 under the organic EL sheet 300. A push button switch 340 is provided on an adjacent base 330. The button body 350 is provided on the top.

The protector 320 is manufactured in the form of plastic, glass, film, or the like, and protects the organic EL sheet 300 from impact, and preferably serves as a convex lens so that an image can be clearly transmitted.

In this case as well, when the button body 350 is pressed, the same number or letter as the image displayed on the organic EL sheet 300 is displayed or the same function is realized.

The button body 350 is installed to push the push button switch 340 by the pressure, it is installed to protrude higher than the protective body 320 can be conveniently operated by the user.

By separating the organic EL sheet 300 and the button body 350 in this way, the letter is not written on the button body 350, so that the button size can be reduced.

In addition, since the organic EL part is not moved, it is easy to implement a button, and thus, the pad part and the button part of the existing mobile communication terminal can be utilized.

Although the embodiments of the present invention have been described above with reference to the drawings, the scope of the present invention is not limited to these descriptions, and the scope of the present invention can be easily modified by those skilled in the art. Go crazy

That is, in the exemplary embodiment of the present invention, the input button of the mobile communication terminal has been described as an example, but the present invention may be applied to an input means such as a computer keyboard.

Korean and English characters are printed on a general computer keyboard. By applying an organic EL input key according to an embodiment of the present invention, when a user inputs Japanese characters, the characters of the keyboard may be changed to Japanese.

In addition, when playing a simulation game, you can display letters such as Build, Attack, Move on the keyboard, and when playing a sports game, you can display letters such as Shoot, Pass, Jump, etc. You may be able to proceed.

According to the embodiment of the present invention, since the buttons of the mobile communication terminal can be modified in various ways, it is possible to personally decorate a mobile phone or the like or improve aesthetics.

In addition, when entering a special character or using internal functions, such as games, electronic notebooks, it is possible to conveniently enter a character or command.

In addition, by attaching the organic EL sheet and the connection circuit to the keypad of the existing mobile communication terminal it is possible to easily implement the input button using the organic EL.

On the other hand, by using the present invention, it is possible to freely transform the characters or symbols displayed on the keyboard in the input means such as a computer keyboard, it is possible to input the characters of the keyboard while watching the desired characters or symbols.

1 is a structural diagram showing the structure of an organic EL sheet;

2A and 2B are structural diagrams showing the configuration of an input button of a mobile communication terminal using an organic EL according to an embodiment of the present invention.

3 is a conceptual diagram illustrating a mobile communication terminal to which an input button is applied according to an embodiment of the present invention.

4A and 4B are structural diagrams showing the configuration of an input button according to another embodiment of the present invention.

5 is a structural diagram showing the configuration of an input button according to another embodiment of the present invention.

Claims (6)

A base electrically connected to a control unit of the mobile communication terminal; An organic EL substrate connecting portion provided in contact with an upper portion of the base; A push button switch provided in contact with an upper portion of the base; An organic EL sheet attached to an upper portion of the organic EL substrate connection unit and configured to output one or more images of one or more of numbers, letters, and symbols according to a signal input from the controller; Enter button. The method of claim 1, It is composed of a transparent body for passing the image output from the organic EL sheet, has a dome shape surrounding the organic EL sheet, the lower end of the button protector in contact with the push button switch; further comprising an organic EL Input button of mobile communication terminal. The method according to claim 1 or 2, The organic EL sheet, When a signal input from the controller changes, an image corresponding to the changing signal is output. Pressing the push button switch input button of the mobile communication terminal using the organic EL, characterized in that to perform a function corresponding to the image output from the organic EL sheet. A base electrically connected to a control unit of the mobile communication terminal; An organic EL substrate connecting portion provided in contact with an upper portion of the base; A connection circuit electrically connecting the control unit of the mobile communication terminal and the organic EL substrate connection unit; An organic EL sheet attached to an upper portion of the organic EL substrate connection unit and configured to output one or more changing images of numbers, letters, and symbols according to a signal input from the controller; Enter button. The method of claim 4, wherein The organic EL sheet, When a signal input from the controller changes, an image corresponding to the changing signal is output. Pressing the push button switch input button of the mobile communication terminal using an organic EL, characterized in that to perform a function corresponding to the image output from the organic EL sheet. An input button for a computer keyboard having the input button according to claim 1 or 4 as an input means.