Background Art Telephones besides general telephones for home use have various functions in addition to a function of simple telephone call.

Particularly, in order to widen practical use of a space occupied by the telephone, a display for the telephone to provide various advertisements, public informations, or the like has been mounted to the telephone. For example, information telephones installed in government and public offices or companies provide simple public information or guidance thereabout in addition to a function of the simple telephone call. Inaddition, in case of public telephones, various advertising boards are installed thereto. Since many people use the public telephones, telephone users look up the public telephones for a long time, and the public telephones are positioned at places on which there is much traffic and then easily attract public attention, the public telephones improve advertising effectiveness. Thus, the public telephones themselves can be a good medium of advertisement.

However, a telephone with a display developed up to now only gives advertisement or information to only the telephone users by small advertising or information boards attached to a side of the telephone. In case that the various small advertising or information boards are attached to the telephone, it may appear 1

to be crude in aesthetics. In addition, the conventional advertising or information boards attached to the telephone should be inconveniently replaced by new ones in order to provide another advertisement or information due to their size.

Disclosure of Invention The present invention is conceived to solve the problems in the related art. An object of the present invention is to provide a telephone with a display which can easily display'various informations or advertisements by turns without replacement with new ones.

Another obj ect of the present invention is to provide a telephone with a display which can display various informations or advertisements with simple constitution and low cost.

According to an aspect of the present invention for achieving the objects, there is provided a telephone with a display, comprising: a telephone main body; and a display section to which the telephone main body is attached. The display section, comprises: a frame 10 having a predetermined space therein; a driving roller and at least one guide roller rotatably mounted in spaced relation with each other in the frame; a driving portion for rotating the driving roller; a screen on which various informations are printed, the screen being wound around and along outer peripheral surfaces of the driving roller and the guide roller and circulating along the rollers by rotation of the driving roller which is rotated by the driving portion; and a display window provided on a surface of the frame and then causing a surface of the circulating screen to be displayed outside.

According to another aspect of the present invention for achieving the objects, there is provided a telephone with a display, comprising: a telephone main body; and a display section to which

the telephone main body is attached. The display section, comprises: a frame 10 having a predetermined space therein ; two winding rollers rotatably mounted in spaced relation with each other in the frame, the two winding rollers being interconnected to each other and rotating; at least one guide roller rotatably mounted in the frame; a driving portion for rotating the winding rollers; a screen on which various informations are printed, both ends of the screen being attached to the two winding rollers, respectively, the screen being wound on one of the two winding rollers and wound around outer peripheral surfaces of the rollers, wherein unwound at the one of the winding rollers and wound at the other one of the winding rollers, the screen circulates along the at least one guide roller; a display window provided on a surface of the frame and then causing a surface of the circulating screen to be displayed outside; and a controller for reversing a rotation of the driving portion when the screen is fully unwound at the one of the winding rollers.

According to a further aspect of the present invention for achieving the objects, there is provided a telephone with a display, comprising: a telephone main body; and a display section to which the telephone main body is attached. The display section, comprises: a frame having a predetermined space therein; a plurality of rotational shafts rotatably mounted in spaced relation with each other in the frame; a driving device for rotating a plurality of the rotational shafts at the same angle; a display window provided on a front of the frame; and screens on which various informations are printed and each of which is mounted around each of the rotational shafts, wherein each time a plurality of the rotational shafts rotate, one surfaces of the respective screens are displayed outside through the display window by turns.

Preferably, the two display windows are provided on a front surface and a rear surface of the frame. In addition, an illuminator may be provided in the frame, and the screen may be positioned

between the display window and the illuminator.

According to a still further aspect of the present invention for achieving the objects, there is provided a telephone with a display, comprising: a telephone main body; and a display section to which the telephone main body is attached. The display section comprises a display window on a partial surface thereof, and an electronic display such as a liquid crystal display (LCD) or an electronic display using light emitting diodes (LEDs) or the like displayed through the display window.

Preferably, a pent roof is provided at an upper portion of the display section, and an external illuminator for illuminating the display window is provided outside of the display section.

The display window may be formed at an upper portion of the telephone main body, and there may be further provided a secondary display window positioned adjacent to the telephone main body or between the telephone main body and the display window, wherein the secondary display window is smaller than the display window. In addition, the telephone may provide a free international telephone service by making it possible to transmit and receive voice data through the Internet. Further, the telephone may provide a video communication service by making it possible to transmit and receive voice and video data through the Internet using a camera installed adj acent to the telephone main body and the secondary display window.

Brief Description of Drawings Fig. 1 is a perspective view of a telephone with a display according to the present invention; Fig. 2 is a schematic partially cutaway perspective view of the telephone with the display shown in Fig. 1; Fig. 3 is a side sectional view of a display section of the telephone with the display shown in Fig. 1;

Figs. 4 to 6 are side sectional views of modified examples of the display section of the telephone with the display shown in Fig. 1; Fig. 7 is a perspective view of a telephone with a display according to another embodiment of the present invention; Fig. 8 is a schematic partially cutaway perspective view of the telephone with the display shown in Fig. 7 ; Fig. 9 is a sectional front view of a display section of a telephone with a display according to an additional embodiment of the present invention; Fig. 10 is a sectional plan view of the display section of the telephone with the display shown in Fig. 9; Fig. 11 is a sectional plan view of a modified display section of the telephone with the display shown in Fig. 9; Fig. 12 is a schematic perspective view of a telephone with a display according to a further embodiment of the present invention wherein a secondary display is mounted between a telephone main body and a main display window; Fig. 13 is a schematic perspective view of a telephone with a display according to a still further embodiment of the present invention wherein a secondary display using LED or LCD is mounted; and Fig. 14 is a block diagram showing an internal structure of a VoIP mode applied to the telephone with the display according to the present invention.

Best Mode for Carrying Out the Invention Hereinafter, referring to the accompanying drawings, preferred embodiments of the present invention will be described as follows.

Fig. 1 is a perspective view of a telephone with a display according to the present invention, which comprises a telephone

main body 100 having a handset and key buttons and a display section 200. A pent roof 80 for protecting sunlight or rain may be installed at an upper portion of the display section. Such a pent roof 80 may be constituted so that the display section 200 can be easily noticed even from afar. Particularly, such a pent roof 80 may be provided with external illuminators 90 so that the display section 200 can be noticed even at night.

Next, Figs. 2 and 3, which are a schematic partially cutaway perspective view and a side sectional view of the display section 200, explain a structure of the display section 200 of the telephone with the display shown in Fig. 1. The display section 200 includes a frame 10 which has a predetermined space therein and the front of which is formed with a display window 60, and a driving roller 20, a guide roller 30, a driving portion 40, and a screen 50 which are provided in the frame 10. The driving roller 20 and the guide roller 30 are spaced apart from and paralleled with each other in the frame 10. Both ends of each of the driving roller 20 and the guide roller 30 are supported in the frame 10 so that they are rotatable. One end of the driving roller 20 is attached to the driving portion 40, which can make the driving roller rotate at a predetermined speed or stop. As shown in Figs. 2 and 3, the screen 50 is wound around outer peripheral surfaces of the driving roller 20 and the guide roller 30. As the driving roller 20 rotates by the driving portion, the screen 50 on which various advertisements or informations are printed circulates between the rollers. The various advertisements or informations printed on the screen 50 are displayed outside through the display window 60 provided on the frame 10.

At this time, internal illuminators 70 may be provided in the frame 10 so that the contents of the display section 200 can be noticed even at night. The internal illuminators 70 may take the place of the external illuminators 90 provided at the pent

roof 80, or may be installed together therewith. The internal illuminators 70 are installed so that the screen 50 to be displayed outside is positioned between the internal illuminators 70 and the display window 60.

In addition, as shown in Fig. 3, the frame 10 may be provided at the rear surface as well as the front surface of the display window 60, so that the informations and advertisements can be displayed outside in front and in the rear of the display section.

However, in such a case, if the screen 50 circulates in the vertical direction as shown in Fig. 2, the contents printed on the screen 50 are displayed upside down at any one of the front and rear surfaces.

Therefore, the driving roller 20 and the guide roller 30 should be installed from side to side in the display section 200 so that the screen 50 circulates from left to right (or from right to left).

Figs. 4 to 6 are side sectional views of modified examples of the display section of the telephone with the display shown in Fig. 1. In the display section 200 shown in Fig. 3, only two informations and advertisements can be printed on the screen 50.

Of course, if a size of the display windows is reduced into half, two or more informations or advertisements can be printed. However, in such a case, since the size of the display windows is smaller than that of the display section, its aesthetic appearance may be spoilt. In order to solve the disadvantage, various contents may be printed on the screen by diversely modifying the arrangement of a plurality of the guide rollers in the frame. That is, as shown in Fig. 4, by further installing a plurality of additional guide rollers between the front and rear surfaces of the frame and winding the screen 50 around and along the driving roller 20 and the guide rollers 30, the screen 50 circulating in the frame 10 can be elongated. Therefore, plenty more informations or advertisements can be displayed without replacing the screen with a new one.

In addition, as shown in Fig. 5, winding rollers 25 instead of the driving roller 20 are rotatably mounted at an upper portion and a lower portion in the frame of the aforementioned display section. With the screen 50 provided as elongate one, both ends of the screen are securely attached to the two winding rollers 25, respectively, and the screen is wound on one of the winding rollers 25. The two winding rollers 25 are interconnected to each other and rotated by a driving portion (not shown in Fig. 5).

Therefore, if the winding rollers 25 are rotated by the driving portion, the screen 50 is unwound at the one of the winding rollers 25 while the screen 50 is wound at the other one of the winding rollers 25. At this time, since a plurality of the guide rollers 30 are provided in the frame 10, the screen is guided so that the printed surface of the circulating screen 50 is displayed outside through the display window 60. There is provided a controller (not shown) for reversing the rotation of the driving portion when the screen 50 is fully unwound at the one of the winding rollers 25, so that the informations printed on the screen may be continuously changed. As shown in Fig. 6, with the two display windows 60 provided on the frame 10, additional guide rollers 30 for changing the circulating direction of the screen 50 may be further provided so that the contents printed on the screen 50 are displayed through the display windows 60. In such a display section, plenty more informations may be printed on the screen 50 compared with the display section shown in Figs. 3 and 4. In addition, in such a case, although the screen circulates above and below by installing the winding rollers 25 at the upper and lower portions, the printed contents displayed through the front and rear display windows are not reversed.

Although an upper portion of the telephone with the display according to the aforementioned embodiments is provided with the display section, the telephone main body 100 may be provided at

the lower front surface of the display section 200, as shown in Figs. 7 and 8. Particularly, in such a case, a length of the screen 50 may be more elongate than that of the previous embodiments.

Thus, since it is preferable that the display window 60 provided on the frame 10 of the display section 200 is formed only above the telephone main body 100, plenty more informations may be printed on the screen and displayed outside by turns.

Fig. 9 is a sectional front view of a display section of a telephone with a display according to an additional embodiment of the present invention. It is necessary to enlarge the display section for people waiting for one's turn to call on the telephone or passing by the telephone rather than people calling on the telephone.

When manufacturing the display section to be large, the time required to change one of the informations or advertisements to another grows longer. In order to solve such a disadvantage, a display section shown in Figs. 9 to 11 may be employed.

That is, the display section attached to the telephone of the present invention includes a frame 10 which has a predetermined space therein, a plurality of rotational shafts 56 which are rotatably mounted in paralleled and spaced relation with each other in the frame 10, screens 55 each of which is provided around each of the rotational shafts 56, and a driving device for rotating the rotational shafts 56 at the same angle. A display window is provided on the front and/or rear of the frame 10, so that various informations printed on the screens 55 are displayed outside through the display window. Preferably, the informations printed on the respective screens 55 are combined into single information. A gear 57 is provided on an end of each of the rotational shafts 56, and idle gears 58 are provided between the gears 57. However, a gear 57 is installed at an intermediate portion of one of the rotational shafts 56, and a driving portion 40 for driving the rotational shaft 56 is connected to an end thereof. If the driving portion

40 drives the one of the rotational shafts 56, the gears 57 provided on ends of the rotational shafts 56 and the idle gears 58 which are engaged with each other cause the rotational shafts 56 to rotate in the same direction. At this time, if the gears 57 are engaged with each other without the idle gears 58, the rotational shafts adjacent to each other rotate in opposite directions, respectively.

As shown in Fig. 10, if the screens 55 in the form of a triangular prism are installed around the rotational shafts 56, respectively, each time the rotational shafts 56 rotate at 120 degrees, the informations printed on respective surfaces of the screens 55 are displayed outside through the display window 60 by turns.

As shown in Fig. 11, the screens 55 may be in the form of a plate. In such a case, each time the rotational shafts rotate at 180 degrees, the two informations printed on respective surfaces of the screens 55 are displayed outside through the display window 60 by turns. At this time, the contents printed on the screens 55 may be displayed in front and in the rear of the display section at the same time if an additional display window 60 is further provided in the rear of the frame. In case of the display section shown in Figs. 9 to 11, since it is difficult to install the internal illuminators in the rear of the screens 55, that is, to install the screens 55 between the internal illuminators and the display window 60, it is preferable that illuminators are provided outside.

More preferably, the external illuminators 90 may be installed at a pent roof provided at the upper portion of the display section 200.

In any above cases, the display window 60 is formed in spaced relation with the upper portion of the telephone main body 100 by a predetermined distance. In addition, the display window 60 is formed to be sufficient large to notice it even in the remote place from the telephone main body. Therefore, the display window 60 is for giving advertisements and informations to people far

from the telephone rather than the telephone users.

In the meantime, in addition to the foregoing display, an additional small secondary display window may be further provided for giving the telephone user informations or advertisements, if necessary. Such a secondary display window may be positioned adjacent to the telephone main body 100 as designated by reference numeral 60S in Fig. 1,2, 7, or 8, or between the main display window 50 and the telephone main body 100 as designated by reference numeral 60U in Fig. 12.

In the meantime, the display section in the telephone with the display of the present invention may comprise an electronic display such as a liquid crystal display (LCD) or an electronic display using light emitting diodes (LEDs) or the like. As shown in Fig. 13, such an electronic display displays advertisements or informations through the various display window 60E, 60S, and/or 60U.

Taking size and cost of the electronic display into consideration, the electronic display using the LEDs or the like preferably displays the advertisements or informations through the display window 60E for giving the advertisements or informations to the place far from the telephone main body. However, the electronic display such as the LCD is preferably applied to the small secondary display window 60S or 60U for giving the advertisements or informations to the telephone users.

The telephone with the display of the present invention may be provided for the telephone users generally without pay. Instead, earnings of advertising rates and the like can be obtained by giving the advertisements and informations to the neighborhood. A portion of the earnings is paid as telephone call charges. The telephone with the display of the present invention may be realized by Internet telephony, referred to as VoIP (Voice over Internet Protocol), which has already developed and used.

Referring to Fig. 14, it will be described briefly below.

If the user calls on the telephone, voice data of a public switched telephone network (PSTN) are generated, and then, are converted into data packets by a connection to an Internet protocol gateway 304 on a computer network through a modem 302. The data packets are transmitted into a national POP 308 or an international POP 310 through a VoIP network 306, and then, converted from the national or international POP into the voice data. Then, the voice data are transmitted into a corresponding general national telephone network (PSTN, 312) or a corresponding general international telephone network (PSTN, 314), causing a telephone conversation to be possible.

Since telephones which are recogni zed as a general communication means in daily life exclusively use definite circuits by using a telephone circuit switching system, cost per a circuit, particularly for a long distance call or international telephone service, is high. Compared with this, the VoIP mode transfers the voice data by dividing into small units as packets with a packet transfer mode by using an existing company exclusive network or national basic network. Thus, since the VoIP mode prevents an exclusive possession of circuits and uses existing circuits, there are an advantage of inexpensive voice communication and a possibility for future development.

In addition, it can be extended to video communication in addition to the simple voice communication. To this end, received data can be displayed by applying the electronic display such as a LCD or CRT monitor to the small secondary display window 60S adjacent to the telephone main body 100, while video data can be transmitted by providing a web camera 110 at a position adjacent to the telephone main body 100 or between the main display window and the telephone main body 100 as designated by reference numeral 110 in Fig. 1,2, 7,8, 12, or 13. At this time, a PC terminal

302 of Fig. 14 may be provided with a voice terminal for the voice communication and a video terminal for the video communication.

Up to now, although the present invention is described in reference to the preferred embodiments, the scope of the present invention is not limited to the specified embodiments but should be interpreted by the claims. In addition, it will be understood that those skilled in the art can make various modifications and changes thereto without departing from the scope of the present invention.

Industrial Applicability According to the aforementioned constitution, the telephone with the display of the present invention can display various advertisements or informations without replacing them with new ones. In addition, the telephone with the display of the present invention can display plenty more advertisements or informations by turns with the simple constitution and low cost. Further, the telephone with the display of the present invention can be more appropriately applied when the display section is enlarged.