KR20020038136A - Folder type mobile terminal displaying identical message on both sides of display - Google Patents

Abstract

The present invention relates to a folding mobile terminal having a display showing the same message on both sides, the main body having a plurality of signal input buttons; A cover coupled to the main body and covering the signal input buttons; Coupling portion for coupling the main body and the cover; A display installed on the cover and displaying a predetermined message; And a built-in one of the main body and the cover, and when the cover is closed, the predetermined message is displayed on the outer surface of the display, and when the cover is opened, the predetermined message is displayed on the inner surface of the display. A display control circuit configured to equalize the contents of the predetermined message displayed on the outer surface and the inner surface of the display device, the display comprising: a first transparent electrode supplying a plurality of electrons; A second transparent electrode supplying a plurality of holes; A light emitting layer disposed between the first transparent electrode and the second transparent electrode and emitting light when electrons and holes input from the first and second transparent electrodes are combined with each other; And first and second transparent layers disposed outside the first and second transparent electrodes, respectively, to transmit light emitted from the light emitting layer to the outside, so that any message displayed on the display can be displayed when the cover is closed or opened. The same is displayed.

Description

Folder type mobile terminal displaying identical message on both sides of display}

The present invention relates to a clamshell mobile terminal, and more particularly to a clamshell mobile terminal having a display showing the same message on both sides.

In recent years, mobile phones have been on the market in various forms due to the rapid increase in the number of mobile communication users according to the industrial development, and has become a necessity for modern people regardless of age or gender. There are various kinds of the flip-type cell phones and clamshell cell phones.

Among these, the clamshell cell phone is small in size and light in weight, so it is easy to carry. Due to these advantages, the clamshell mobile phone is becoming the most popular model in the mobile communication market, and the industry is conducting various studies for ultra-slip and ultra-light weight.

As shown in FIG. 1, the conventional folding cellular phone includes a main body 11 and a cover 13 that is rotated and opened around a coupling part 15 provided on an upper side of the main body 11. The cover has a display 30 that shows the message. Since the display is installed on the inside of the cover, you can only see the message on the display when the cover is opened. When the cover 13 is lifted and unfolded, the front of the main body 11 that is exposed to the outside has a function of setting signal input buttons 10 for inputting signals such as numbers and letters, and functions of a folding cellular phone. The setting buttons 20 are installed.

When simply carrying or storing the folding cellular phone 1, the cover 13 is closed to reduce the overall appearance size, and the cover is exposed so that the signal input buttons 10 and the function setting buttons 20 are exposed during a call. (13) is opened and used. In the drawings, reference numerals 17 and 18 denote receivers and transmitters for receiving a reception sound and transmitting a transmission sound, respectively, and reference numeral 19 is attached to a rear surface of the main body 11 to be detachably attached to a predetermined circuit in the main body 11. Battery to apply power.

By the way, in the conventional clamshell mobile phone 1 described above, when the cover is closed, the display part is completely covered by the cover and is not exposed to the outside. Therefore, the information displayed on the display cannot be confirmed at all. Therefore, even if the user simply wants to check the information displayed on the display without making a call, it is inconvenient to check after exposing the display to the outside by opening the cover.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide a folding type mobile terminal that allows a predetermined message displayed on a display to be the same when a cover is closed or opened.

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.

1 is a perspective view of a conventional folding mobile phone.

2 and 3 are perspective views of a folding mobile terminal according to a preferred embodiment of the present invention.

FIG. 4 is a circuit diagram of a display control circuit for controlling a message appearing in a display shown in FIGS. 2 and 3.

5A and 5B are diagrams illustrating types of messages appearing in the displays shown in FIGS. 2 and 3.

6 is a cross-sectional view taken along the line a-a 'of the display shown in FIGS. 2 and 3.

The present invention to achieve the above technical problem,

A main body having a plurality of signal input buttons; A cover coupled to the main body and covering the signal input buttons; Coupling portion for coupling the main body and the cover; A display installed on the cover and displaying a predetermined message; And a built-in one of the main body and the cover, and when the cover is closed, the predetermined message is displayed on the outer surface of the display, and when the cover is opened, the predetermined message is displayed on the inner surface of the display. A display control circuit configured to equalize the contents of the predetermined message displayed on the outer surface and the inner surface of the display device, the display comprising: a first transparent electrode supplying a plurality of electrons; A second transparent electrode supplying a plurality of holes; A light emitting layer disposed between the first transparent electrode and the second transparent electrode and emitting light when electrons and holes input from the first and second transparent electrodes are combined with each other; And first and second transparent layers respectively installed on the outside of the first and second transparent electrodes and transmitting the light emitted from the light emitting layer to the outside.

Preferably, the main body is provided with a handset for converting the voice of the user of the mobile phone mobile terminal into an electrical signal, the cover is provided with a handset for converting the electrical signal transmitted from another mobile phone mobile terminal to the voice.

Preferably, the light emitting layer is made of a polymer, and the first and second transparent layers are made of glass.

Preferably, the mobile phone mobile terminal further comprises: a sensing unit for sensing the operation of the coupling unit to generate a first sensing signal when the cover is closed and a second sensing signal when the cover is opened; And a control unit connected to the sensing unit to display the predetermined message on the outer surface of the display in response to the first sensing signal and to display the predetermined message on the inner surface of the display in response to the second sensing signal. do.

Preferably, the background of the display is set to a predetermined color and the predetermined message is displayed in a color contrasted with the predetermined color.

According to the present invention, the predetermined message displayed on the display provided in the foldable mobile terminal is identically displayed when the cover is closed or opened.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

2 and 3 are perspective views of a folding mobile terminal according to a preferred embodiment of the present invention. 2 and 3, the foldable mobile terminal 200 according to the present invention includes a main body 211, a cover 213, a coupling part 215, and a display control circuit 401 of FIG. 4.

The main body 211 includes a plurality of signal input buttons 221 and a talker 223. The user using the clamshell mobile terminal 200 may input letters or numbers into the clamshell mobile terminal 200 using a plurality of signal input buttons 221, and various functions of the clamshell mobile terminal 200. You can also set them up. The talker 223 converts the user's voice into an electrical signal. The electrical signal is transmitted to the terminal designated by the user through the antenna 231.

The coupling part 215 couples the main body 211 and the cover 213. The cover 213 is closed or opened by the engaging portion 215.

The cover 213 has a display 241 and a receiver 243. The display 241 shows a predetermined message 251 and shows the same message when opening or closing the cover as shown in FIGS. 2 and 3. The display 241 will be described in more detail with reference to FIG. 6. The handset 243 converts an electrical signal transmitted from another terminal into a voice and delivers it to the user.

The display control circuit 401 of FIG. 4 is embedded in the main body 211 or the cover 213. The display control circuit 401 of FIG. 4 serves to display a predetermined message 251 on the display 241. The display control circuit 401 of FIG. 4 will be described in detail with reference to FIG. 4.

The predetermined message 251 shown in the display 241 is divided into two types as shown in FIGS. 5A and 5B. The predetermined message 251 may be shown in black as shown in FIG. 5A. Since the display 241 is transparent, if the predetermined message 251 is black, the predetermined message 251 can be clearly seen. Another form of the predetermined message 251 may be represented in white with the background of the display 241 set to black as shown in FIG. 5B. In FIG. 5B, the background of the display 241 may be set to a color other than black, and the color of the predetermined message 251 is also set to a color that contrasts sharply with the background color of the display 241. For example, if the background color of the display 241 is green and the predetermined message 251 is white or the background color of the display 241 is blue and the predetermined message 251 is yellow, the predetermined message 251 is It can be seen clearly.

The folder type mobile terminal 200 includes a folder type mobile phone, a folder type personal information terminal (Personal Digital Assistant), and the like.

4 is a circuit diagram of a display control circuit 401 for controlling a message appearing in the display shown in FIG. 2 and FIG. Referring to FIG. 4, the display control circuit 401 includes a detector 411 and a controller 421.

The detector 411 detects the operation of the coupling unit 215 of FIG. 3. When the cover 213 of FIGS. 2 and 3 is closed, the detector 411 generates and transmits the first detection signal P1 to the controller 421. When the control unit 421 receives the first detection signal P1, the controller 421 displays a predetermined message (251 of FIGS. 2 and 3) so that the user can see the cover 213 in a closed state as shown in FIG. 2. On the outer surface 261 of 251.

Then, when the cover 213 is opened, the detection unit 411 detects this and generates a second detection signal P2 and transmits it to the control unit 421. 3, the control unit 421 displays a predetermined message 251 on the inner surface 262 of the display 241 so that the user can see the cover 213 in the open state. The predetermined message 251 appearing on the outer surface 261 or the inner surface 262 of the display 241 has the same contents. That is, if the message “waiting” is displayed on the outer surface 261 of the display while the cover 213 is closed, the message “waiting” is displayed on the inner surface 262 of the display when the cover 213 is opened. .

6 is a cross-sectional view taken along the line a-a 'of the display shown in FIGS. 2 and 3. Referring to FIG. 6, the display 241 includes a light emitting layer 611, a first transparent electrode 621, a second transparent electrode 622, a first transparent layer 631, and a second transparent layer 632.

The first transparent electrode 621 supplies a plurality of electrons to the light emitting layer 611 by a voltage provided from the outside.

The second transparent electrode 622 supplies a plurality of holes to the light emitting layer 611 by a voltage provided from the outside.

The light emitting layer 611 is provided between the first transparent electrode 621 and the second transparent electrode 622. Electrons and holes input from the first and second transparent electrodes 621 and 622 are coupled to each other in the emission layer 611, and light is emitted when the electrons and holes are coupled to each other. The light emitting layer 611 is composed of a polymer having high mechanical strength and no crystallization by heat. The polymer may form a thin film on a substrate by treating a solution in which a material is dissolved in an organic solvent by a spin coating method. The polymer should have a high quantum fluorescence yield in the solid state, high mobility of electrons and holes, and not be easily decomposed during vacuum deposition. Light emitted from the light emitting layer 611 may be emitted in various colors according to the structure of the light emitting layer 611. For example, there may be a method of emitting color light in the light emitting layer 611 itself, or by attaching a material having various colors to the upper and lower portions of the light emitting layer 611 to convert the light emitted from the light emitting layer 611 into color.

The first transparent layer 631 is installed outside the first transparent electrode 621 and transmits light emitted from the light emitting layer 611 to the outside. The first transparent layer 631 is made of glass.

The second transparent layer 632 is installed outside the second transparent electrode 622 and transmits light emitted from the light emitting layer 611 to the outside. The second transparent layer 631 is made of glass.

The first and second transparent layers may be made of plastic, and when the plastic is used, the thickness of the display 241 may be made of an ultra-thin film. The display control circuit 401 of FIG. 4 determines whether to emit light emitted from the light emitting layer 611 to the first transparent layer 631 or to the second transparent layer 632. For example, the light emitted from the light emitting layer 611 is emitted through the first transparent layer 631. The predetermined message 251 is performed when the cover 213 of the clamshell mobile terminal 200 (FIGS. 2 and 3) is opened. Is displayed on the inner surface 262 of the display, and the light emitted from the light emitting layer 611 is emitted through the second transparent layer 632, and the predetermined message 251 is displayed when the cover 213 is closed. This means that it is displayed on the outer surface 261. The predetermined message 251 may be displayed in reverse.

When the structure of the display (241 of FIGS. 2 and 3) is made as shown in FIG. 6, the thickness of the display 241 is reduced, thereby reducing the size and thickness of the folding mobile terminal.

The best embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, according to the present invention, the predetermined message 251 displayed on the outer surface 261 of the display when the cover 213 of the clamshell mobile terminal 200 is closed and the inner surface of the display when the cover 213 is opened. Since the predetermined message 251 displayed at 262 is the same, the user of the folding mobile terminal can check the message sent from another terminal even when the cover is closed without having to open the cover 213. In addition, since the thickness of the display 241 is thin, the size of the foldable mobile terminal 200 is reduced, and the weight thereof is also light, making it easy to carry.

Claims (7)

A main body having a plurality of signal input buttons; A cover coupled to the main body and covering the signal input buttons; Coupling portion for coupling the main body and the cover; A display installed on the cover and displaying a predetermined message; And It is embedded in one of the main body and the cover, and when the cover is closed, the predetermined message is displayed on the outer surface of the display, when the cover is opened, the predetermined message is displayed on the inner surface of the display, at this time A display control circuit for equalizing both the contents of the predetermined message displayed on the outer surface and the inner surface; The display is A first transparent electrode supplying a plurality of electrons; A second transparent electrode supplying a plurality of holes; A light emitting layer disposed between the first transparent electrode and the second transparent electrode and emitting light when electrons and holes input from the first and second transparent electrodes are combined with each other; And And a first and second transparent layers respectively disposed outside the first and second transparent electrodes and transmitting the light emitted from the light emitting layer to the outside. The mobile terminal of claim 1, wherein the main body includes a transceiver for converting a voice of the user of the mobile terminal into an electrical signal. The mobile terminal of claim 1, wherein the cover includes a receiver for converting an electrical signal transmitted from another mobile terminal into voice. The mobile terminal of claim 1, wherein the light emitting layer is made of a polymer. The mobile phone of claim 1, wherein the first and second transparent layers are made of glass. The method of claim 1, wherein the mobile phone mobile terminal A sensing unit which senses an operation of the coupling unit to generate a first sensing signal when the cover is closed and a second sensing signal when the cover is opened; And A control unit connected to the sensing unit and configured to display the predetermined message on the outer surface of the display in response to the first sensing signal and to display the predetermined message on the inner surface of the display in response to the second sensing signal. Foldable mobile terminal, characterized in that. The mobile terminal of claim 1, wherein the base of the display is set to a predetermined color and the predetermined message is displayed in a color contrasted with the predetermined color.