KR101139784B1 - Data input apparatus for mobile communication terminal - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal, and in particular, a key input unit consisting of a plurality of input keys for inputting input data into a mobile communication terminal, and an individual light source for a plurality of input keys constituting the key input unit. By providing a data input device having a light source unit which emits light so as to be integrated with the respective input keys, the mobile communication terminal provides a light source having the same brightness selectively to each input key constituting the key input unit. The present invention relates to a data input device of a mobile communication terminal capable of preventing unnecessary consumption of rated power, and more particularly, to a keypad for inputting input data into a mobile communication terminal comprising a plurality of input keys; Individually placed inside each input key to provide light Each light source unit and a main body unit of the mobile communication terminal so that light may be emitted from a light source unit disposed inside the pressed input key when a pressing force is provided to any one of the input keys. It provides a data input device of a mobile communication terminal comprising a keypad film having a signal connection portion for electrically connecting the printed circuit board disposed therein.

Mobile communication terminal, keypad, keypad film, LED, carbon contact, luminous material

Description

DATA INPUT APPARATUS FOR MOBILE COMMUNICATION TERMINAL}

1 to 4 show a conventional mobile communication terminal,

1 is a perspective view showing the appearance of a conventional mobile communication terminal equipped with a data input device.

2 is an exploded perspective view showing the internal configuration of a mobile communication terminal equipped with a conventional data input device.

3 is a side cross-sectional view showing the internal structure of a mobile communication terminal equipped with a conventional data input device.

4 is a side cross-sectional view illustrating a process of operating a data input device of a conventional mobile communication terminal.

5 to 8 illustrate a data input device of a mobile communication terminal according to an embodiment of the present invention.

5 is a side cross-sectional view showing an internal configuration of a mobile communication terminal equipped with a data input device according to an embodiment of the present invention.

6 is an enlarged side cross-sectional view of a portion B of FIG. 5.

7 is a plan view, a side view, and a rear view showing a light emitting device provided in a data input device of a mobile communication terminal according to an embodiment of the present invention.

8 is a side cross-sectional view illustrating a process of operating a data input device of a mobile communication terminal according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: mobile communication terminal 101: camera module

200: main body 201: upper case

202: lower case 203: fixing part

204: screw 210: keypad

211: input key 213: microphone

240: pressurization portion 250: dome switch

300: folder portion 301: image display portion

302: receiver 400: hinge coupling portion

500: printed circuit board 501: fourth contact

510: chipset 600: light source

700: Keypad 710: Input Key

720: light emitting device seating portion 800: light source

810 light emitting element 820 light emitting element printed circuit board

830: first contact point 900: keypad film

910 film 920 emboss

930: second contact point 940: third contact point

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication terminal, and in particular, a key input unit consisting of a plurality of input keys for inputting input data into a mobile communication terminal, and an individual light source for a plurality of input keys constituting the key input unit. By providing a data input device having a light source unit which emits light so as to be integrated with the respective input keys, the mobile communication terminal provides a light source having the same brightness selectively to each input key constituting the key input unit. The present invention relates to a data input device of a mobile communication terminal capable of preventing unnecessary consumption of rated power.

In general, a mobile communication system of a mobile communication terminal transmits a call message including a unique number of a mobile communication terminal through a call channel of a base station to call a mobile communication terminal, and then sends a call message when a response is received from a specific mobile communication terminal. It is a system that enables a call between a receiver and a receiver.

The above-described conventional mobile communication terminal will be described with reference to FIGS. 1 to 4.

1 to 4 show a conventional mobile communication terminal, FIG. 1 is a perspective view showing the appearance of a mobile communication terminal equipped with a conventional data input device, and FIG. 2 is a mobile device provided with a conventional data input device. It is an exploded perspective view which shows the internal structure of a communication terminal.

As shown in FIG. 1, the conventional mobile communication terminal 100 includes a main-liquid crystal display (Main-LCD) module 301 and a sub-liquid crystal display; A keypad 210 including a folder 300 provided with a display unit 301 such as an LCD module (not shown) and a plurality of input keys 211 to input dialing and various data signals is provided on the front thereof. The provided main body 200 is coupled by the hinge coupling unit 400 to form an appearance thereof.

Here, a plurality of chipsets 510 in charge of main functions of the mobile communication terminal 100 are provided in the main body 200 of the mobile communication terminal 100 provided with the conventional keypad 210. The printed circuit board 500 is provided, and the printed circuit board 500 uses the mobile communication terminal 100 to create a text message or input a unique number of the mobile communication terminal of the receiver or various latest functions. In inputting data for use, a light source unit 600 formed of a plurality of backlight light emitting devices providing a light source to the keypad 210 to enable a smooth input even when the user's surroundings are dark or no light at night. It is provided.

Herein, the operation of the above-described light source unit 600 for providing a light source to the keypad 210 will be described with reference to FIGS. 3 and 4.

Figure 3 is a side cross-sectional view showing the internal configuration of a conventional mobile communication terminal equipped with a data input device, Figure 4 is a side cross-sectional view showing a process of operating the data input device of a conventional mobile communication terminal.

As shown in FIG. 3, the main body 200 of the conventional mobile communication terminal 100 includes a printed circuit board on which a plurality of chipsets 510 are mounted, which process electrical signals of the mobile communication terminal 100 as described above. 500 is provided, wherein the printed circuit board 500 includes a fixing part provided between the upper case 201 and the lower case 202 constituting the main body 200 of the mobile communication terminal 100. 203 and the screw 204 and the like are fixed by the coupling means.

Here, the printed circuit board 500 is provided with a dome switch 250 capable of outputting an electrical signal corresponding to the pressing force provided from the input key 211, wherein the dome switch 250 is the input key 211. It is electrically mounted on the printed circuit board 500 provided on one side of the) and is individually pressed by the pressing force provided from the input key 211, and transmits an electrical signal corresponding thereto to the chipset 510.

In addition, the printed circuit board 500 has the keypad 210 when the dome switch 250 is pressed so that the keypad can be used even when the environment of the mobile communication terminal 100 is a dark place or a night without a light source. The light source unit 600 for emitting a light source provided in the) is provided.

However, as described above, the light source unit 600 that emits light and emits a light source is not disposed to correspond to each input key 211 constituting the key input unit when the light source unit 600 is disposed on the printed circuit board 500. Therefore, there is a problem in that it does not provide a light source of the same brightness to each input key (211).

In addition, the light source unit 600 provided in the printed circuit board 500 is a mobile communication terminal because the light source unit 600 that emits a light source provided to the keypad 210 when the dome switch 250 is pressurized simultaneously emits light. There is a problem that the rated voltage of 100 is consumed more than necessary.

Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to provide a key input unit consisting of a plurality of input keys for inputting input data into a mobile communication terminal and a separate light source to a plurality of input keys constituting the key input unit. By providing a data input device in which a light source that emits light so as to provide a data input unit formed integrally with the respective input keys to provide a light source having the same brightness selectively to each input key constituting the key input unit It is to provide a data input device of a mobile communication terminal that can prevent unnecessary consumption of the rated power of the mobile communication terminal.

In order to achieve the above object, a data input device of a mobile communication terminal according to the present invention includes a keypad configured to input data into a mobile communication terminal, which is composed of a plurality of input keys, and separately disposed inside each of the input keys. A plurality of light source units providing light, and moving with each light source unit so that light can be emitted from a light source unit disposed inside the pressed input key when a pressing force is provided to any one of the input keys. It provides a data input device of a mobile communication terminal comprising a keypad film having a signal connection portion for electrically connecting the printed circuit board disposed inside the main body of the communication terminal.

According to the configuration as described above, a light source unit for emitting light to provide a separate light source to the key input unit consisting of a plurality of input keys for inputting input data to the mobile communication terminal and a plurality of input keys constituting the key input unit By providing a data input device integrally formed with each of the input keys to provide a light source having the same brightness selectively to each input key constituting the key input unit and at the same time prevent unnecessary consumption of the rated power supply of the mobile communication terminal It has an effect.

Hereinafter, a mobile phone terminal according to a preferred embodiment of the present invention with reference to the accompanying drawings in more detail as follows.

5 to 8 illustrate a data input device of a mobile communication terminal according to an embodiment of the present invention, and FIG. 5 illustrates an internal configuration of a mobile communication terminal provided with a data input device according to an embodiment of the present invention. 6 is a side cross-sectional view showing an enlarged portion B of FIG. 5, and FIG. 7 is a plan view, a side view, and a rear view of a light emitting device provided in a data input device of a mobile communication terminal according to an embodiment of the present invention. It is also.

5 to 7, the data input device of the mobile communication terminal according to the embodiment of the present invention includes a plurality of input keys 710 and a keypad 700 for inputting input data to the mobile communication terminal 100. ), A plurality of light source units 800 which are disposed inside the respective input keys 710 to provide light, and a pressing force applied to any one of the input keys 710 of the input keys 710. Is provided in the main body 200 of the light source unit 800 and the mobile communication terminal so that the light emitted from the light source unit 800 disposed in the pressurized input key 710 when provided It comprises a keypad film 900 having a signal connection for electrically connecting the circuit board 500.

The light source unit 800 may include a light emitting device that is separately provided to each of the input keys 710 so as to provide light to each of the input keys 710, and on one surface of each of the light emitting devices 810. Preferably, the light emitting device includes a light emitting device printed circuit board 820 that is electrically attached to process an electrical signal of each of the light emitting devices 810. In particular, each light emitting device 810 constituting the light source unit 800 may include a light emitting device. It is preferable that each of the LEDs emits a predetermined light.

That is, the light emitting device 810 included in the data input device of the mobile communication terminal according to the present invention may be provided with LEDs emitting individually selected light, thereby providing light sources of various colors.

In addition, the keypad film 900, the input key 710 so that the input key 710 is always provided with an elastic force to return the input key 710 to its original position when the pressing force (P) is removed. And a plurality of embosses 920 protruding at a predetermined height in a direction in which the input key 710 is provided at a position corresponding to the provided position.

The signal connection part may include a first contact point 830 disposed on a rear surface of the light emitting device printed circuit board 820 and a front surface of the keypad film 900 so as to correspond to a position where the first contact point 830 is provided. The second contact point 930 and the third contact point 940 and the third contact point 940 disposed on the rear surface of the keypad film 900 so as to correspond to the position where the second contact point 930 is provided. And a fourth contact point 501 disposed on the front surface of the printed circuit board 500 so as to correspond to the provided position, wherein each contact point 830, 930, 940, 501 is a carbon contact point composed of a carbon polymer. It is preferred that the configuration.

The plurality of input keys 710 constituting the key input unit are predetermined on the input key 710 so as to display a material and a predetermined symbol through which the light provided by the light source unit 800 can pass. It may be configured to further include a light emitting material printed in a pattern of, wherein the light emitting material printed on the input key 710 is preferably formed of a luminous material to maintain a light emitting state even when the light is removed. .

A process of driving the data input device of the mobile communication terminal 100 according to the embodiment of the present invention having the above-described configuration will be described with reference to FIG. 8 as follows.

8 is a side cross-sectional view illustrating a process of operating a data input device of a mobile communication terminal according to an embodiment of the present invention. As shown in FIG. 8, data of the mobile communication terminal 100 according to an embodiment of the present invention is shown. The input device is configured to input input data to be input by providing a pressing force to a keypad 700 composed of a plurality of input keys 710 so as to input input data to the mobile communication terminal 100.

That is, the data input device of the mobile communication terminal 100 according to the embodiment of the present invention includes a chipset mounted on the printed circuit board 500 through a printed circuit board 500 provided inside the mobile communication terminal 100. The input signal to be finally inputted is formed by transferring an electrical signal corresponding to the input signal to be input to the 510.

In order to achieve the above object, the data input device of the mobile communication terminal 100 according to the embodiment of the present invention is composed of a plurality of input keys 710 as shown in FIG. A keypad 700 for inputting input data into the plurality of light sources, a plurality of light source units 800 which are individually disposed inside the input keys 710 to provide light, and among the input keys 710. When the pressing force is provided to any one of the input keys 710, the light source unit disposed inside the pressurized input key 710 may emit light. It comprises a keypad film 900 having a signal connection for electrically connecting the printed circuit board 500 disposed inside the main body 200.

Here, in order to input the above-described input signal, a predetermined pressing force is applied to the input key 710 corresponding to the input signal to be input among the plurality of input keys 710 constituting the key input unit as shown in FIG. When (P) is provided, the input key 710 is spaced by a predetermined height h by the pressing force P in the direction in which the printed circuit board 500 is provided.

In addition, since the input key 710 is spaced in the direction in which the printed circuit board 500 is provided, the light source 800 separately disposed in the input key 710 is also spaced by the height h. In this case, the first contact point 830 disposed on the rear surface of the light emitting device printed circuit board 820 and the second contact point disposed on the front surface of the keypad film 900 so as to correspond to the position where the first contact point 830 is provided. And a position where the third contact point 940 and the third contact point 940 are disposed on the rear surface of the keypad film 900 so as to correspond to the contact point 930 and the position where the second contact point 930 is provided. As the fourth contact 501 disposed on the front surface of the printed circuit board 500 is interviewed to correspond to each other, an electrical signal corresponding to an input signal is transmitted to the printed circuit board 500.

In addition, the data input device of the mobile communication terminal 100 according to the embodiment of the present invention returns the input key 710 to its original position when the pressing force P is removed from the spaced input key 710 as described above. A plurality of embosses protruded at a predetermined height in a direction in which the input key 710 is provided at a position corresponding to the position at which the input key 710 is provided so as to provide an elastic force to the input key 710 at all times. 920 is configured to return the input key 710 to its original position when the pressing force P is removed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course.

As described above, the data input device of the mobile communication terminal according to the present invention provides a key input unit consisting of a plurality of input keys for inputting input data into the mobile communication terminal and a separate light source on the plurality of input keys constituting the key input unit. By providing a data input device in which a light source that emits light so as to be integrally formed with the respective input keys, the light source having the same brightness is selectively moved to the respective input keys constituting the key input unit. There is an effect to prevent unnecessary consumption of the communication terminal rated power.

In addition, the environment for use of the mobile communication terminal by providing a light emitting material formed of a luminous material to maintain the light emission state when the light emitted from the light emitting element is removed to the input key provided in the data input device of the mobile communication terminal according to the present invention There is an effect that the keypad can be used even in a dark place or night without the light source.

Further, by providing a light emitting device provided in the data input device of the mobile communication terminal according to the present invention as an LED for emitting individually selected light, it is possible to provide light sources of various colors.

Claims (8)

A keypad composed of a plurality of input keys for inputting input data into a mobile communication terminal; A plurality of light source units disposed separately in the input keys to provide light; Printing disposed inside the main body of each light source unit and the mobile communication terminal to emit light from the light source unit disposed inside the pressurized input key when a pressing force is applied to any one of the input keys. The input key at a position corresponding to the position at which the input key is provided so that the signal connection part electrically connecting the circuit board and the elastic force to return the input key to its original position when the pressing force is removed are always provided to the input key. The data input device of a mobile communication terminal, characterized in that it comprises a keypad film having a plurality of embossed to protrude to a predetermined height in the provided direction. The method of claim 1, The light source unit, A light emitting element provided separately to each input key so as to provide light to each input key; And a light emitting device printed circuit board electrically attached to one surface of each light emitting device to process an electrical signal of each light emitting device. 3. The method of claim 2, Each light emitting device, The data input device of the mobile communication terminal, characterized in that each of the LED emitting a predetermined light. delete The method of claim 3, The signal connection unit, A first contact disposed on a rear surface of the light emitting device printed circuit board; A second contact disposed on the front surface of the keypad film so as to correspond to a position where the first contact is provided; A third contact point disposed on a rear surface of the keypad film so as to correspond to a position where the second contact point is provided; And a fourth contact disposed on the front surface of the printed circuit board so as to correspond to a position at which the third contact is provided. The method of claim 5, The contact point, A data input device for a mobile communication terminal, characterized in that the carbon contact made of a carbon polymer. The method of claim 6, The input key is Data input of the mobile communication terminal, characterized in that further comprising a light emitting material printed in a predetermined pattern on the input key to display a material and a predetermined symbol that can pass the light provided from the light source unit Device. The method of claim 7, wherein The light emitting material is, And a luminous material that maintains a light emitting state even when the light is removed.

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