Information providing method, mobile terminal and display device for the same

A method of acquiring and processing information on a mobile terminal is provided. The method includes: receiving, at the mobile terminal, information about at least one item displayed on an external display device from the external display device; and performing, at the mobile terminal, a function for the at least one item based on the received information.

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application claims priority from Korean Patent Application No. 10-2012-0093250, filed on Aug. 24, 2012, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.

BACKGROUND

Exemplary embodiments relate to a method of acquiring information and payment processing mobile terminal, an information providing method of a display device, and a payment system, which provide secure and convenient information to an individual using the mobile terminal and display device.

2. Description of the Related Art

Due to the accessibility of a television (TV) and the number of TV's in use, the TV is an important channel for publicizing products, objects, events, or persons and inducing viewers to purchase or learn more about the products, objects, persons or events. Thus, viewers often want to buy or acquire information about a product, event, object or person being advertised or displayed on the TV while watching TV. However, the process of purchasing or acquiring information about the object, event, or person displayed on the TV is inconvenient. For example, a viewer may have to turn on a computer, search for the product on a website, and input credit card information through the computer to pay for the product or input search information to acquire information about an object displayed on the TV. Even when using TV home shopping networks, a viewer will have to place a phone call to a home shopping business operator.

In addition, if the TV itself has methods of payment or searching for information, a viewer may give up buying the product or acquiring information through the TV due to the inconvenience of input methods of the TV. Thus, a system enabling easy and safe payment or acquisition of information is required in a display device, such as the TV.

SUMMARY

Exemplary embodiments provide a method, apparatus and system for providing information to a mobile terminal from an external display.

According to an aspect of an exemplary embodiment, a method of acquiring and processing information on a mobile terminal is provided. The method includes: receiving, at the mobile terminal, information about at least one item displayed on an external display device from the external display device; and performing, at the mobile terminal, a function for the at least one item based on the received information.

The receiving may be performed by using wireless communication. The wireless communication may include near field communication (NFC).

The method may also include displaying, at the mobile terminal, at least one menu item corresponding to the item displayed on the external display device based on the received information and selecting, at the mobile terminal, the displayed menu item. The function may be performed based on the selecting the menu item.

The performing the function may include transmitting a request for additional information based on the received information and information about a selection of a user and receiving additional information corresponding to the request for additional information.

The receiving the information may include receiving the information encoded in an NFC data exchange format (NDEF) and decoding the information encoded in the NDEF.

The information encoded in the NDEF may include a first field comprising information about the external display device and a second field comprising the information about the at least one item displayed on the external display device.

Tithe receiving the information may include receiving at least one of location information and ID information of the external display device.

The external display device may be at least one of a smart television (TV), a kiosk, a vending machine, and an advertisement device.

According to an aspect of an exemplary embodiment, an information providing method for providing information from a display device to a mobile terminal is provided. The information providing method includes: displaying a screen comprising at least one item; receiving first information about the at least one item from a server; and transmitting second information corresponding the first information to the mobile terminal through wireless communication. The wireless communication comprises near field communication (NFC).

The transmitting may include encoding the first information to generate second information encoded in an NFC data exchange format (NDEF); and transmitting the second information encoded in the NDEF to the mobile terminal.

The transmitting the second information encoded in the NDEF may include storing the second information encoded in the NDEF in an NFC tag.

The method may also include deleting the second information transmitted to the mobile terminal from the NFC tag.

The second information may include a first field including information about the display device and a second field including the information about the at least one item displayed on the display device.

The at least one item may be an on-air item displayed on the display device as part of a broadcast.

The display device may be at least one of a smart television (TV), a kiosk, a vending machine, and an advertisement device.

According to an aspect of an exemplary embodiment, a mobile terminal includes: a communication unit which is configured to receive information about at least one item displayed on an external display device from the external display device; and a controller which is configured to perform a function corresponding to the at least one item based on the received information.

The communication unit may be configured to receive the information using near field communication (NFC).

The mobile terminal of claim20may also include a display which is configured to display a menu item corresponding to the received information and a user input which is configured to receive a user selection of the displayed menu item. The controller may be further configured to performing the function based on the user selection.

The received information may be encoded in NFC data exchange format (NDEF), and the controller may decode the received information encoded in the NDEF.

The information encoded in the NDEF may include a first field comprising information about the external display device and a second field comprising the information about the at least one item displayed on the external display device.

According to an aspect of an exemplary embodiment, a display device includes: a display; a communication unit which is configured to transmit and receive information; and a controller which is configured to control the display to display at least one item, control the communication unit receive first information about the at least one item from a server, process the first information to generate second information, and control the communication unit to transmit the second information to a mobile terminal through wireless communication.

The second information may be encoded in an NFC data exchange format (NDEF).

The second information may also include a first field comprising information about the display device and a second field comprising the information about the at least one item displayed on the external display device.

The controller may store the second information encoded in the NDEF in an NFC tag.

The at least one item may be an on-air item displayed as part of a broadcast.

According to an aspect of an exemplary embodiment, a system is provided. The system includes: a mobile terminal; and a display device which is configured to display at least one item, receive first information about the at least one item from a server, process the first information to generate second information, and transmit the second information to the mobile terminal through wireless communication. The mobile terminal is configured to receive the second information about the at least one item displayed on the display device and perform a function corresponding the at least one item based on the received second information.

Exemplary embodiments also provide a payment processing method and a mobile terminal for the same, a transaction information providing method and a display device for the same, and a payment system, which prevent payment information of a user from being leaked by transmitting transaction information about a product displayed on a display device to a mobile terminal of the user through a near field communication (NFC) and transmitting a payment authorization request about the product from the mobile terminal to a payment server.

According to an aspect of an exemplary embodiment there is provided a payment processing method of a mobile terminal, the payment processing method including: receiving transaction information about at least one product displayed on a display device from the display device through a near field communication (NFC); receiving a selection on a payment method related to a user of the mobile terminal; and performing a payment process on the at least one product based on at least a part of the received transaction information and information about the selected payment method.

The performing of the payment process may include transmitting a payment request including the at least a part of the received transaction information and the information about the selected payment method to a payment server.

The payment processing method may further include receiving a payment authorization result on the payment request from the payment server.

The receiving of the transaction information may include: receiving transaction information encoded in an NFC data exchange format (NDEF); and decoding the transaction information encoded in the NDEF.

The payment processing method may further include requesting the transaction information about the at least one product displayed on the display device from the display device through the NFC.

The transaction information may include at least one of product information, seller information, a transaction identification (ID), point providing information, discount payment method information, and delivery date information.

The receiving of the transaction information may further include receiving at least one of location information and ID information of the display device.

The payment processing method may further include displaying the received transaction information and the information about the selected payment method on a screen.

The payment method may include at least one of a credit card, a debit card, a credit transfer, securities, a coupon, and an account-based payment method.

The receiving of the selection on the payment method may include: obtaining discount rate information about a plurality of payment methods related to the user of the mobile terminal, based on the received transaction information; recommending a payment method on the at least one product, based on the obtained discount rate information; and receiving a selection on the recommended payment method from the user.

The receiving of the selection on the payment method may include: recommending a payment method on the at least one product, based on use pattern information of the user with respect to a plurality of payment methods related to the user of the mobile terminal; and receiving a selection of the user on the recommended payment method.

The receiving of the selection on the payment method may include: receiving authentication information about the payment method from the user; and authenticating access authority of the user about the payment method based on the authentication information.

The authentication information may include at least one of individual ID information about a certificate, individual ID information corresponding to the payment method, pattern input information corresponding to the payment method, and fingerprint information of the user.

The transmitting of the payment request may include: generating a payment statement including the at least a part of the received transaction information and the information about the selected payment method; encoding the generated payment statement; and transmitting the encoded payment statement to the payment server.

The payment processing method may further include: receiving a plurality of pieces of transaction information respectively corresponding to a plurality of products from the display device through the NFC; and displaying a list of the plurality of pieces of transaction information respectively corresponding to the plurality of products.

According to an aspect of another exemplary embodiment, there is provided a transaction information providing method for providing transaction information from a display device to a mobile terminal, the transaction information providing method including: displaying at least one product; selecting a product to be transacted from among the displayed at least one product, based on an external input; requesting transaction information about the selected product from a seller server; receiving the transaction information about the selected product from the seller server; and transmitting the received transaction information to the mobile terminal through a near filed communication (NFC).

The transmitting may include: encoding the received transaction information in an NFC data exchange format (NDEF); and transmitting the transaction information encoded in the NDEF to the mobile terminal.

The transmitting of the transaction information encoded in the NDEF may include storing the transaction information encoded in the NDEF in an NFC tag.

The transaction information providing method may further include deleting the transaction information transmitted to the mobile terminal from the NFC tag.

The displaying of the at least one product may include: receiving a product list and seller identification (ID) information from the seller server; and displaying the received product list and the seller ID information on a screen.

The receiving of the product list and the seller ID information may include: displaying a list of a plurality of shopping applications respectively interlocked with a plurality of seller servers; receiving a selection on at least one shopping application from the list; and executing the selected shopping application and requesting a product list from a seller server corresponding to the selected shopping application.

The selecting of the product to be transacted may include selecting an on-air product on the display device at a point in time when the external input is received, and the requesting of the transaction information about the selected product may include requesting transaction information about the on-air product from the seller server based on broadcasting channel information and broadcasting hour information.

The transaction information providing method may further include: receiving a payment authorization result on the selected product; and displaying the payment authorization result.

The selecting of the product to be transacted may include receiving the external input on the selection of the product to be transacted through one of an infrared-ray communication, an NFC, a Bluetooth, Wi-Fi direct (WFD), an ultra wideband (UWB), and a wireless local area network (LAN).

The transaction information providing method may further include: receiving transaction information respectively corresponding to a plurality of products from the seller server; and displaying a list of the received transaction information respectively corresponding to the plurality of products.

According to an aspect of another exemplary embodiment, there is provided a mobile terminal including: a communication unit for receiving transaction information about at least one product displayed on a display device from the display device through a near field communication (NFC); a user input unit for receiving a selection on a payment method related to a user of the mobile terminal; and a control unit for performing a payment process on the at least one product based on at least a part of the received transaction information and information about the selected payment method.

The control unit may transmit a payment request including the at least a part of the received transaction information and the information about the selected payment method to a payment server.

The communication unit may receive a payment authorization result on the payment request from the payment server.

The communication unit may receive transaction information encoded in an NFC data exchange format (NDEF), and the control unit may decode the transaction information encoded in the NDEF.

The communication unit may request the transaction information about the at least one product displayed on the display device from the display device through the NFC.

The communication unit may further receive at least one of location information and identification (ID) information of the display device.

The mobile terminal may further include a display unit for displaying the received transaction information and the information about the selected payment method on a screen.

The control unit may obtain discount rate information about a plurality of payment methods related to the user of the mobile terminal, based on the received transaction information and recommends a payment method on the at least one product, based on the obtained discount rate information, and the user input unit may receive a selection on the recommended payment method from the user.

The control unit may recommend a payment method on the at least one product, based on use pattern information of the user with respect to a plurality of payment methods related to the user of the mobile terminal; and the user input unit may receive a selection of the user on the recommended payment method.

The user input unit may receive authentication information about the payment method from the user, and the control unit may authenticate access authority of the user about the payment method based on the authentication information.

The control unit may generate a payment statement including the at least a part of the received transaction information and the information about the selected payment method, encode the generated payment statement, and transmit the encoded payment statement to the payment server.

The communication unit may receive a plurality of pieces of transaction information respectively corresponding to a plurality of products from the display device through the NFC, and the display unit may display a list of the plurality of pieces of transaction information respectively corresponding to the plurality of products.

According to an aspect of another exemplary embodiment, there is provided a display device including: a display unit for displaying at least one product; a selection unit for selecting a product to be transacted from among the displayed at least one product, based on an external input; a communication unit for requesting transaction information about the selected product from a seller server, receiving the transaction information about the selected product from the seller server, and transmitting the received transaction information to the mobile terminal through a near filed communication (NFC); and a control unit for controlling the display unit, the selection unit, and the communication unit.

The control unit may encode the received transaction information in an NFC data exchange format (NDEF), and the communication unit may transmit the transaction information encoded in NDEF to the mobile terminal.

The control unit may store the transaction information encoded in NDEF in an NFC tag.

The control unit may delete the transaction information transmitted to the mobile terminal from the NFC tag.

The communication unit may receive a product list and seller identification (ID) information from the seller server, and the display unit may display the received product list and the seller ID information on a screen.

The display unit may display a list of a plurality of shopping applications respectively interlocked with a plurality of seller servers, and the control unit may receive a selection on at least one shopping application from the list, execute the selected shopping application, and request a product list from a seller server corresponding to the selected shopping application.

The selection unit may select an on-air product on the display device at a point in time when the external input is received, and the communication unit may request transaction information about the on-air product from the seller server based on broadcasting channel information and broadcasting hour information.

The communication unit may receive a payment authorization result on the selected product, and the display unit may display the payment authorization result on a screen.

The communication unit may receive the external input on the selection of the product to be transacted through one of an infrared-ray communication, an NFC, a Bluetooth, Wi-Fi direct (WFD), an ultra wideband (UWB), and a wireless local area network (LAN).

The communication unit may receive transaction information respectively corresponding to a plurality of products from the seller server, and the display unit may display a list of the received transaction information respectively corresponding to the plurality of products.

The display device may include at least one of a smart television (TV), a kiosk, a vending machine, and an advertisement device.

According to an aspect of another exemplary embodiment, there is provided a payment system including: a display device for selecting a product to be transacted from among at least one product displayed on a screen based on an external input, receiving transaction information about the selected product from a seller server, encoding the received transaction information in a near field communication (NFC) data exchange format (NDEF), and storing the encoded transaction information in an NFC tag; and a mobile terminal for receiving the transaction information from the display device through an NFC, receiving a selection on a payment method related to a user of the mobile terminal, and performing a payment process on the selected product based on at least a part of the received transaction information and information about the selected payment method.

The payment system may further include a payment mediation server for distributing a shopping application of a seller to the display device, managing information about the seller, and requesting payment authorization from a payment authorization server by receiving a payment statement from the mobile terminal.

The payment system may further include a seller server for providing a product list and seller identification (ID) information to the display device, receiving a request for the transaction information about the product selected by the user from the display device, and transmitting the transaction information to the display device.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

Hereinafter, terms used herein will be briefly described, and one or more exemplary embodiments will be described in detail.

When a part “includes” or “comprises” an element, unless there is a particular description contrary thereto, the part can further include other elements, not excluding the other elements. In the following description, terms such as “unit” and “module” indicate a unit for processing at least one function or operation, wherein the unit and the block may be embodied as hardware or software or embodied by combining hardware and software.

Herein, “transaction information” may denote information for a user to transact (for example, trade, rent, and exchange) a product with a seller or may also denote information used to acquire information about an object, event, program displayed on the TV. For example, transaction information according to an exemplary embodiment may include information about a purchased product (a product code, a manufacture date, an expiration date, a product price, a manufacturer, a color, a size, and a product quantity), information about a seller (a seller name, a seller identification (ID) code, contact information of a seller, and an application ID of a seller), and information about a number of months for an installment plan. In another exemplary embodiment, transaction information may include any information corresponding to an object, person, event, product, program displayed on the television that may be used to acquire additional information corresponding to the object, person, event, product, program displayed on the television. The information may include information such as a link, identification code, name, etc. about an information provider, database, or content provider that provides additional information.

Herein, a product not only denotes a tangible product (for example, a bag, a fish, or a book), but also denotes an intangible product (for example, a travel service, a massage service, or a beauty service).

Exemplary embodiments will be described more fully with reference to the accompanying drawings. The exemplary embodiments may, however, be embodied in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein; rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. In the drawings, elements not related to the exemplary embodiments are not illustrated for clear description, and like reference numerals denote like elements.

FIG. 1is a block diagram of a payment system according to an exemplary embodiment.

The payment system may include a seller server100, a display device200, a mobile terminal300, and a payment server400. However, the components shown inFIG. 1are not essential. In other words, the payment system may be realized by more or less components than those shown inFIG. 1.

The components of the payment system will now be described in detail.

The seller server100is a server built by a seller who sells products through the display device200, and may provide an on-line shopping or home shopping service to the display device200. The seller server100may store information about the products sold by the seller, information about the seller (for example, a business name, a logo, an application ID of the seller), etc.

The seller server100may communicate with the display device200through a seller application distributed to the display device200. For example, the seller server100may provide an available product list to the display device200. The seller server100may provide transaction information about a certain product selected by a user to the display device200.

The display device200is any one of various types of devices including a display panel. Examples of the display device200according to an exemplary embodiment include a smart television (TV), an internet protocol TV (IPTV), a digital TV (DTV), a computer, a laptop, an electronic book terminal, a tablet personal computer (PC), a mobile phone, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, a consumer electronics (EC) device (for example, a refrigerator or air conditioner having a display panel), a kiosk, a vending machine, and an advertisement device, but are not limited thereto.

The display device200may display at least one product on a screen. For example, the display device200may display at least one product through a home shopping broadcasting channel. Alternatively, the display device200may display at least one product through the seller application.

The display device200may download or execute at least one seller application distributed by the seller, based on a user input. The display device200may receive a product list to be sold by the seller through the seller application. When the user selects at least one product displayed on the display device200, the display device200may request transaction information from the seller server100through the seller application.

The display device200may include a near field communication (NFC) tag for performing NFC communications. The display device200according to an exemplary embodiment may store data to be transmitted to the mobile terminal300in the NFC tag.

The display device200may include a user input unit for receiving a user input. The user input unit may be mounted in the display device200or may exist outside the display device200in a form of a remote controller. The remote controller may be realized in any one of various shapes. Examples of the remote controller include a remote controller exclusive to the display device200, and the mobile terminal300, such as a smart phone, a mobile phone, or a tablet PC.

The mobile terminal300according to an exemplary embodiment is a device for processing a payment on a product. The mobile terminal300may be realized in any one of various forms. Examples of the mobile terminal300include a mobile phone, a smart phone, a laptop, a tablet PC, an electronic book terminal, a PDA, a PMP, a navigation device, an MP3 player, and a camera.

The mobile terminal300may communicate with the display device200and the payment server400through a network. The network according to an exemplary embodiment may be realized using a wireless communication technology, such as wireless fidelity (Wi-Fi), home radio frequency (RF), Bluetooth, HR WPAN, UWB, LR WPAN, or IEEE 1394.

The mobile terminal300may include a security region. Examples of the security region include a subscriber identity module (SIM) and a universal SIM (USIM).

A USIM is a combination of an SIM card including subscriber information and a universal integrated chip (IC) card (UICC), wherein various functions, such as user authentication, global roaming, and electronic commerce, are realized in one card. The USIM includes a small central processing unit (CPU) and a memory, wherein the CPU identifies a user via an encoding and decoding function, and the memory is used as a storage space for supplementary services. In other words, the security region may operate as a hardware security module (HSM).

The mobile terminal300according to an exemplary embodiment may store a mobile card in the security region. The mobile card is a card realized in software in the mobile terminal300. The mobile card may be published to the mobile terminal300through a wireless network.

The mobile terminal300may also store payment information of the user, as well as the mobile card. For example, the mobile terminal300may store information for a credit transfer (for example, a bank account, a bank account number, and an account holder) and account information used for payment (for example, a payment ID and a payment e-mail address). According to an exemplary embodiment, the information for the credit transfer and the account information used for the payment may be stored in an external server for managing personal information of the user.

The mobile terminal300may request a payment from the payment server400. In other words, the mobile terminal300according to an exemplary embodiment may generate a payment statement for a payment request. In addition, the mobile terminal300may receive a payment authorization result from the payment server400.

The payment server400receives a payment request about a predetermined transaction from the mobile terminal300, and processes payment authorization about the predetermined transaction. According to an exemplary embodiment, the payment server400may be a single server or a plurality of servers. For example, the payment server400may include a payment mediation server410and a payment authorizations server420.

The payment mediation server410mediates a payment between the mobile terminal300and the payment authorization server400, and pays for sales money for the seller. In other words, the payment mediation server410may collect money from a credit card company or bank of a buyer instead of the seller, and then pay the seller with an amount of money from which a fee is deducted.

The payment mediation server410according to an exemplary embodiment may receive seller information (an ID, a personal ID number, and a bank account of the seller) from the seller, and issue and manage an account of the seller based on the seller information.

The payment mediation server410according to an exemplary embodiment may register and mange a shopping application generated by the seller. While registering the shopping application, the payment mediation server410may provide an application ID, and manage the application ID in association with an ID of the seller. In other words, the payment mediation server410may package the application ID, a description about the shopping application, an application icon, the ID of the seller, bank account information of the seller, and the shopping application.

The payment mediation server410may distribute the shopping application to the display device200. For example, the payment mediation server410may receive a shopping application provide request including the application ID from the display device200, and transmit the shopping application to the display device200by searching for the shopping application based on the application ID.

The payment authorization server420authorizes the payment request about the predetermined product received from the mobile terminal300or the payment mediation server410.

The payment authorization server420may transmit a payment authorization result to the mobile terminal300. Alternatively, the payment authorization server420may transmit the payment authorization result to the payment mediation server410, the seller server100, and the display device200.

The payment authorization server420according to an exemplary embodiment may be a credit card company server or a financial company server.

A method of providing transaction information from the display device200to the mobile terminal300will now be described in detail with reference toFIG. 2.

FIG. 2is a flowchart illustrating a transaction information providing method of the display device200, according to an exemplary embodiment.

In operation S210, the display device200may display at least one product on a screen. In other words, the display device200may display information about products to be sold to the user on the screen. For example, the display device200may display an image of products, a price of products, a quantity of products, and seller ID information on the screen. In another example, the display device200may display information about an object, person, event, product and program.

According to an exemplary embodiment, the display device200may display at least one product through a home shopping broadcasting channel or another broadcast channel.

Alternatively, the display device200may display at least one product through a shopping application or another application. In other words, the display device200may receive the product list and the seller ID information from the seller server100through the shopping application, and display the received product list and seller ID information on the screen.

In operation S220, the display device200may select a product to be transacted or for which additional information is requested from the at least one product displayed on the screen, based on an external input. Here, the external input may denote a user input for selecting the product to be transacted. In other words, the user may select a product to be purchased from the at least one product displayed on the display device200by using the remote controller or the mobile terminal300for controlling the display device200.

According to an exemplary embodiment, the display device200may receive the external input through any one of various communication technologies. For example, the display device200may receive the external input through one of an infrared-ray communication, an NFC, a Bluetooth, a Wi-Fi direct (WFD), an ultra wideband (UWB), and wireless local area network (WLAN).

In operation S230, the display device200may request the transaction information about the selected product from the seller server100or may request information about the object, person, event, product, program displayed on the television. The display device200may request the transaction information or additional information from the seller server100through a wired or wireless communication. The transaction information according to an exemplary embodiment may include product information (for example, a product code, a product price, a manufacturer, a color, a size, and a product quantity), seller information (for example, a seller name, a seller ID code, contact information of the seller, and an application ID of the seller), a number of months for an installment plan, discount information, a transaction ID, point providing information, and delivery date information.

According to an exemplary embodiment, the display device200may request transaction information about a home shopping product from the seller server100based on a broadcasting channel and broadcasting hours, as will be described in detail below with reference toFIG. 3.

According to an exemplary embodiment, the display device200may request transaction information about a product selected by the user from the seller server100through a shopping application, as will be described in detail below with reference toFIG. 6.

According to another exemplary embodiment, information corresponding to the object, person, event, product, program displayed on the television may be requested by the display device200.

In operation S240, the display device200may receive the transaction information about the selected product from the seller server100. In other words, the display device200may receive a transaction ID, product information, seller information discount information (for example, a discount coupon and discount payment method information), promotion information (for example, point providing information), and delivery date information. The display device200may also receive information such as a link, identification code, name, etc. about an information provider, database, or content provider that provides additional information about the object, person, event, product, program, etc. displayed on the display device200.

According to an exemplary embodiment, the display device200may receive transaction information about a plurality of products from the seller server100at once. Further, the display device200may receive the transaction information from the seller server100through a wired or wireless communication.

In operation S250, the display device200may transmit the received transaction information or other information corresponding to the object, person, event, product, and program displayed on the display device200to the mobile terminal300through the NFC. In other words, the display device200may encode the received transaction information or other information in an NFC data exchange format (NDEF). The display device200may also store the encoded transaction information or other information in an NFC tag. Here, when the mobile terminal300approaches the display device200within a radius of the NFC, the transaction information or other information stored in the NFC tag of the display device200is transmitted to the mobile terminal300.

The display device200may encode the transaction information. Here, the display device200may encode the transaction information by using any one of various encoding algorithms. Examples of an encoding algorithm include RSA, LUC, Diffie-Hellman, Elliptic Curve, Snefru, CRC-32, CRC-16, MD2, MD4, MD5, SHA, and Naval.

According to an exemplary embodiment, the display device200may delete the transaction information transmitted to the mobile terminal300from the NFC tag. After the transaction information is transmitted to the mobile terminal300, the display device200may immediately delete the transaction information from the NFC tag. Alternatively, the display device200may delete the transaction information from the NFC tag after a predetermined period of time.

The display device200may receive the payment authorization result about the product selected by the user from outside the display device200. For example, the display device200may receive the payment authorization result from at least one of the seller server100, the mobile terminal300, and the payment server400. The display device200may display the received payment authorization result on the screen.

A method of transmitting the transaction information about the home shopping product from the display device200to the mobile terminal300will now be described in detail with reference toFIGS. 3 and 4.

FIG. 3is a flowchart illustrating a transaction information providing method about a home shopping product of the display device200, according to an exemplary embodiment.

As shown inFIG. 3, in operation S310, the display device200may receive home shopping broadcast information or other broadcast information from a broadcast management server, and output a home shopping broadcast the other broadcast information. According to an exemplary embodiment, the display device200may receive an electronic program guide. The electronic program guide denotes information about broadcasting contents provided by a business operator for a viewer to easily select a channel. For example, the electronic program guide may include broadcast program names, channel names, broadcasting hours (a start time, a finish time, and duration), levels, program types, representative images, and detailed information (for example, casts, directors, producers, providers, rerun information, story lines, and previews).

In operation S320, the display device200may receive a selection on a home shopping product from the mobile terminal300or a selection of an object, person, event, product, and program displayed on the display device200. In other words, the user may request to buy a home shopping product through the mobile terminal300while watching a home shopping broadcast or request additional information about the object, person, event, product, and program displayed on the display device200. Here, the mobile terminal300may include a remote controller exclusive to the display device200.

In operation S330, the display device200may extract a seller selling the home shopping product selected by the user, based on broadcasting channel information and broadcasting hour information of the home shopping product. In addition, the display device200may extract information such as a link, identification code, name, etc. about an information provider, database, or content provider that provides additional information about the object, person, event, product, and program displayed on the television. For example, the display device200may extract the seller by checking a broadcasting channel and broadcasting hours on the electronic program guide.

In operation S340, the display device200may request transaction information about the home shopping product or additional information from the seller server100. According to an exemplary embodiment, the display device200may request the transaction information by transmitting information about the home shopping product selected by the user (for example, a product ID code, a product color, and a quantity of products) to the seller server100.

In operation S350, the seller server100may check an on-air home shopping product and transmit the transaction information or additional information about the home shopping product selected by the user to the display device200.

In operation S360, the display device200may store the transaction information or additional information received from the seller server100in NDEF, in the NFC tag.

In operation S370, the display device200may transmit the transaction information or additional information to the mobile terminal300through the NFC, as described below with reference toFIG. 4.

FIG. 4illustrates screens for requesting transaction information about a home shopping product during a home shopping broadcast, according to an exemplary embodiment.

As shown inFIG. 4 (a), the display device200may output a home shopping broadcast about a suitcase. The broadcast may include two regions, a first display region displaying the product and a second display region with information about the product and menu items selectable by the user. Here, when the user wants to buy a suitcase while watching the home shopping broadcast, the user may select “PURCHASE” through the mobile terminal300. In another exemplary embodiment, if a user wants request to additional information about the suitcase, the user may select a menu item requesting additional information (not shown).

As shown inFIG. 4 (b), the display device200may output a screen including menu items for selecting a payment method, in response to a purchase request of the user. A payment method provided by the display device200may be various. Examples of the payment method menu items may include menu items for a payment in points, payment through a telecommunication company (a payment method wherein a product price is added to a communication fee), a credit card payment in the display device200, and a mobile bill presentation and payment (MBPP) in the mobile terminal300.

Herein, the MBPP means a payment method based on the user through the mobile terminal300. In other words, the user may directly request payment from the payment server400by receiving the transaction information through the mobile terminal300without having to transmit payment method information to an external terminal, such as a point of sales (POS) terminal or a seller terminal.

For example, the mobile terminal300may receive the transaction information from the display device200and extract the payment method information related to the user such that a payment process or purchase transaction is performed in the mobile terminal300.

Accordingly, when the user selects the MBPP from various payment methods, the display device200may request transaction information about a suitcase from the seller server100based on a broadcasting channel and broadcasting hours. Then, the display device200receives the transaction information about the suitcase (for example, Product Code: abc, Price: $100, Quantity: 1, Seller ID: OOO, TID: XXXXXX), and transmit the transaction information to the mobile terminal300through the NFC.

A method of transmitting transaction information through a shopping application interlocked with the seller server100from the display device200to the mobile terminal300will now be described with reference toFIGS. 5 through 8.

FIG. 5is a flowchart illustrating a method of installing and executing a shopping application in the display device200, according to an exemplary embodiment.

As shown inFIG. 5, the payment mediation server410may receive seller information from a seller in operation S505. For example, the payment mediation server410may receive a seller ID, personal ID information (for example, a password), and a seller bank account from the seller.

In operation S510, the payment mediation server410may register an account of the seller based on the seller information input from the seller. The payment mediation server410may provide a software development kit (SDK) to the seller to develop and distribute a shopping application executable in the display device200. The seller may develop the shopping application by using the SDK.

In operation S515, the payment mediation server410may register the shopping application of the seller. Here, in operation S520, the payment mediation server410may provide an application ID to the shopping application, and manage the application ID in association with a seller ID. The payment mediation server410may package the application ID, a description about the shopping application, an application icon, the seller ID, bank account information of the seller, and the shopping application. A package generated as such may be stored in the payment mediation server410and managed as the application ID.

In operation S525, the payment mediation server410may provide a shopping application list that is not installed in the display device200. In operation S530, the display device200may display the shopping application list on the screen.

The shopping application list according to an exemplary embodiment may include information about a plurality of shopping applications respectively interlocked with a plurality of seller servers (for example, application names, application icons, and seller ID information).

In operation S535, the display device200may receive a selection of the user on at least one application from the shopping application list. In operation S540, the display device200may request transmission of the selected application from the payment mediation server410. Here, the display device200may transmit an application ID of the selected application to the payment mediation server410.

In operation S545, the payment mediation server410may check the application ID and extract a package of the application selected by the user. Then, in operation S550, the payment mediation server410may transmit the extracted package to the display device200.

In operation S555, the display device200may install the selected application by using the received package. In operation S560, the display device200may execute the installed application based on a user input.

A method of transmitting transaction information from the display device200to the mobile terminal300by using a shopping application of a seller installed in the display device200will now be described in detail with reference toFIG. 6.

FIG. 6is a flowchart illustrating a transaction information providing method of the display device200through a shopping application, according to an exemplary embodiment.

In operation S600, the display device200may display a shopping application list on the screen. Here, the shopping application list may include an icon of a shopping application of a seller installed in the display device200, an application name, and seller ID information.

In operation S610, the display device200may receive a selection of the user on at least one application from the shopping application list, and execute the selected application.

In operation S620, the display device200may request a product list from the seller server100interlocked with the selected application.

In operation S630, the seller server100may transmit the product list of the seller to the display device200. In other words, the display device200receives the product list through the application selected by the user. Here, the display device200may also receive seller ID information from the seller server100.

In operation S640, the display device200may display the product list received from the seller server100on the screen. The product list may include a product name, a product image, a product price, an available quantity, a user evaluation, and a seller ID.

In other words, when the user selects a shopping application of a certain seller, the user may check a product list provided by the certain seller.

In operation S650, the display device200may receive a selection of the user on at least one product in the product list. According to an exemplary embodiment, the selection of the user on the at least one product may be performed by a purchase determination or a payment request.

In operation S660, the display device200may request transaction information about the at least one product selected by the user from the seller server100through the shopping application of the seller. In operation S670, the seller server100may transmit the transaction information to the display device200in response to the request.

In operation S680, the display device200may change the received transaction information into NDEF. Here, the display device200may encode the transaction information into NDEF.

In operation S690, the display device200may transmit the transaction information to the mobile terminal300through an NFC.

A method of transmitting transaction information from the display device200to the mobile terminal300by using a shopping application of a seller will now be described in detail with reference toFIGS. 7 through 9.

FIG. 7 (a)illustrates a screen for providing a shopping application list in the display device200andFIG. 7 (b)illustrates a screen for providing a product list by executing a shopping application selected by a user, according to an exemplary embodiment.

As shown inFIG. 7 (a), the display device200may output the shopping application list installed in the display device200. A plurality of shopping applications in the shopping application list may respectively correspond to a plurality of seller servers. For example, Application1may correspond to Seller Server1, Application2may correspond to Seller Server2, and Application3may correspond to Seller Server3.

If the user selects Application3in the shopping application list, the display device200requests a product list from Seller Server3corresponding to Application3.

As shown inFIG. 7 (b), the display device200may receive the product list from Seller Server3through Application3, and display the product list on the screen. Here, the user checks the product list of Seller3, and selects a product to be purchased. For example, the user may select Product2.

FIG. 8 (a)illustrates a screen for selecting a payment method in the display device200andFIG. 8 (b)illustrates a screen for providing transaction information to the mobile terminal300through an NFC in the display device200, according to an exemplary embodiment.

As shown inFIG. 8 (a), the user may select a payment method about Product2. If the user selects MBPP as the payment method, the display device200may request transaction information about Product2from Seller Server3. Here, Seller Server3may transmit the transaction information about Product2(for example, a product code, a product price, a transaction ID, and ID of Application3) to the display device200.

As shown inFIG. 8 (b), the display device200may change the transaction information about Product2received from Seller Server3to NDEF, and store the transaction information in an NFC tag. Then, the display device200may display a notification “Please tag the mobile terminal300(Tap Smart Phone)”. Here, when the user touches the mobile terminal300to the NFC tag. The display device200may transmit the transaction information about Product2through the NFC to the mobile terminal300, as will be described below with reference toFIG. 9.

FIG. 9illustrates transaction information encoded into NDEF, according to an exemplary embodiment.

As shown inFIG. 9, according to an exemplary embodiment, the display device200may encode the transaction information into NDEF, wherein the transaction information may include a field comprising subfields including information about the display device200(for example, a smart TV and a Park's smart TV), and an MBPP request field comprising subfields including information about a seller ID (for example, 1234), an application ID (for example, app-7890), and product information (for example, Product2, Price XXX, and price unit $).

FIG. 10illustrates a screen for providing a shopping list (shopping basket) in the display device200, according to an exemplary embodiment.

As shown inFIG. 10, the display device200may receive transaction information respectively corresponding to a plurality of products from the seller server100. According to an exemplary embodiment, the display device200may receive the transaction information respectively corresponding to the plurality of products from one seller server100or a plurality of seller servers100.

The display device200according to an exemplary embodiment may display a list of the transaction information on the screen.

Accordingly, the user may select products to be purchased for a predetermined period of time, and receive transaction information about the selected products from the display device200through the mobile terminal300at once. In other words, when the user touches the mobile terminal300to the display device200, the display device200transmits the transaction information at once to the mobile terminal300through an NFC.

Alternatively, the user may select and transmit transaction information to be used from the list of transaction information on the display device200to the mobile terminal300.

A payment processing method of the mobile terminal300by using transaction information transmitted from the display device200will now be described in detail.

FIG. 11is a flowchart illustrating a payment processing method of the mobile terminal300, according to an exemplary embodiment.

In operation S1110, the mobile terminal300may receive transaction information about at least one product displayed on the display device200from the display device200through an NFC. The transaction information may include at least one of product information (for example, a product price), seller information (for example, seller ID information or an application ID), a transaction ID, point providing information, discount payment method information, and delivery date information.

As described above, at least one product displayed on the display device200may be at least one home shopping product on a home shopping broadcast, or at least one on-line shopping product provided through a shopping application of a seller.

According to an exemplary embodiment, the display device200may receive transaction information encoded in NDEF. The display device200may decode the transaction information encoded in NDEF.

In operation1120, the mobile terminal300may receive a selection on a payment method related to the user of the mobile terminal300. The payment method related to the user may include at least one of a credit card, a debit card, a credit transfer, securities, a coupon, and an account-based payment method. The payment method related to the user may not only be a magnet plate card, but may also be a mobile card or a virtual card stored in a security region of the mobile card300in a program format. The account-based payment method is an account being a payment method by interlocking a credit card or bank account to the account of the user.

According to an exemplary embodiment, when there is only one payment method related to the user, a check on the payment method may be considered as a selection on the payment method.

In operation S1130, the mobile terminal300may perform a payment process on a product based on at least a part of the received transaction information and information about the payment method. In other words, the mobile terminal300may transmit a payment request including the at least a part of the transaction information and the information about the payment method to the payment server400.

The display device200according to an exemplary embodiment may transmit all or a part of the transaction information to the payment server400. For example, the display device200may request a payment while transmitting only seller ID information (or an application ID) and product price information from among the transaction information to the payment server400.

The information about the payment method according to an exemplary embodiment may include, if the payment method is a credit card, a card number, an expiration date, and a CVC value, and if the payment method is a credit transfer, an account number, a bank, and an account holder.

A payment processing method of the mobile terminal300will now be described in detail with reference toFIG. 12.

FIG. 12is a flowchart illustrating a payment processing method of the mobile terminal300, according to an exemplary embodiment.

In operation S1205, the display device200may receive a selection of a product and a request for transaction information from the mobile terminal300. In other words, the user may select at least one of products displayed on the display device200through the mobile terminal300, and request transaction information about the selected product.

According to an exemplary embodiment, the mobile terminal300may request transaction information about a product displayed on the display device200from the display device200through an NFC, Bluetooth, an infrared-ray communication, Zigbee, or a WLAN.

In operation S1210, the display device200may transmit the transaction information about the product through the NFC, and in operation S1215, the mobile terminal300may be placed near the display device200within a radius of the NFC to receive the transaction information from an NFC tag of the display device200. Here, according to an exemplary embodiment, the mobile terminal300may display the transaction information received from the display device200.

The mobile terminal300may further receive at least one of location information and ID information of the display device200from the display device200.

According to an exemplary embodiment, the mobile terminal300may drive a mobile wallet application to be switched to a mode for receiving a selection on a payment method while receiving the transaction information.

Accordingly in operation S1220, the mobile terminal300may display a payment method list related to the user through the mobile wallet application. In operation S1225, the mobile terminal300may receive a selection of the user on at least one payment method from the payment method list. For example, the user may select, as a payment method, a mobile card A, a gift card B, a credit transfer, or an account-based payment. Here, the mobile terminal300may display information about the payment method selected by the user on the screen.

According to an exemplary embodiment, the mobile terminal300may receive a selection of the user on a plurality of payment methods. For example, the user may select the mobile card A and the gift card B as payment methods such that a payment amount of the product is split and charged to the mobile card A and the gift card B. Alternatively, the user may get a discount on the payment amount by using an OO coupon, and then request payment authorization on the remaining payment amount by using the mobile card A. Here, the user selects the OO coupon and the mobile card A as the payment methods.

According to an exemplary embodiment, the mobile terminal300may recommend a payment method. For example, the mobile terminal300may obtain discount rate information regarding a plurality of payment methods related to the user of the mobile terminal300, based on the transaction information received from the display device200. Then, the mobile terminal300may recommend a payment method based on the obtained discount rate information. In other words, the mobile terminal300may recommend payment methods in an order of a high discount rate.

According to an exemplary embodiment, the mobile terminal300may recommend a payment method based on use pattern information of the user on a plurality of payment methods. For example, when the user mainly uses a mobile card X for shopping, the mobile terminal300may recommend the mobile card X as the payment method. Alternatively, when a main card of the user is a mobile card Y, the mobile terminal300may basically recommend the mobile card Y as the payment method.

According to an exemplary embodiment, the mobile terminal300may receive a selection of the user on the recommended payment method.

The mobile terminal300may receive authentication information about the payment method from the user. Here, the mobile terminal300may authenticate access authority of the user on the payment method based on the received authentication information.

The authentication information according to an exemplary embodiment may include at least one of personal ID information about a certificate, personal ID information corresponding to a payment method, pattern input information corresponding to a payment method, and fingerprint information of the user. According to an exemplary embodiment, the authentication information may be iris information, vein information, voice information, or palm print information.

In operation S1230, the mobile terminal300may generate a payment statement based on at least a part of the transaction information and information about the payment method. In operation S1235, the mobile terminal300may encode the payment statement. Here, any one of various encoding algorithms may be used. Examples of encoding algorithms include RSA, LUC, Diffie-Hellman, Elliptic Curve, Snefru, CRC-32, CRC-16, MD2, MD4, MD5, SHA, and Naval.

In operation S1240, the mobile terminal300may transmit the payment statement to the payment mediation server410. According to an exemplary embodiment, since the payment statement is directly generated in the mobile terminal300and transmitted to the payment mediation server410, information about a personal payment method of the user may be prevented from being leaked.

In operation S1245, the payment mediation server410may decode the payment statement. In operation S1250, the payment mediation server410may extract seller information (for example, seller ID information and an application ID), payment amount information, and payment method information from the decoded payment statement.

In operation S1255, the payment mediation server410may request a payment by transmitting the extracted seller information, payment amount information, and payment method information to the payment authorization server420.

In operation S1260, the payment authorization server420may process payment authorization. In operation S1265, the payment authorization server420may transmit a payment authorization result to the payment mediation server410. Here, the payment mediation server410may deposit the payment amount to a bank account of the seller based on the seller information (for example, the seller ID information and the application ID).

In operation S1270, the payment authorization server420may transmit the payment authorization result to the mobile terminal300. Here, the mobile terminal300may output the payment authorization result on the screen.

The payment authorization server420may transmit the payment authorization result to the seller server100or the display device200.

The payment processing method of the mobile terminal300will now be described in more detail with reference toFIGS. 13 through 17.

FIG. 13illustrates screens for the mobile terminal300obtaining and displaying transaction information through an NFC, according to an exemplary embodiment.

As shown inFIG. 13 (a), when a notification message “Tag Smart Phone” is output on the display device200, the user may tag the mobile terminal300to the display device200.

At this time, as shown inFIG. 13 (b), the mobile terminal300may receive transaction information (a product image, a product name, and a product price) about Product2selected by the user from the display device200, and display the transaction information on the screen. The user may check the transaction information displayed on the mobile terminal300and perform a payment.

FIG. 14illustrates screens for describing a payment method according to an exemplary embodiment.

As shown inFIG. 14 (a), according to an exemplary embodiment, when the transaction information is received from the display device200, the mobile terminal300may execute the mobile wallet application and be switched to a mode for reading a mobile card.

At this time, as shown inFIG. 14 (b), the mobile terminal300may request authentication information (for example, a password of a mobile card) about a payment method from the user. The mobile terminal300may authenticate access authority on a mobile card based on the authentication information received from the user. When authentication is successful, the mobile terminal300may extract card information required for a payment from a security region. An authentication method may vary as described above.

FIG. 15illustrates a screen displaying a payment method list, according to an exemplary embodiment.

As shown inFIG. 15, according to an exemplary embodiment, when there are a plurality of payment methods related to the user, the mobile terminal300may output a payment method list on the screen. Here, the user may check the payment method list and select Mobile Card1as a payment method for Product2.

FIG. 16illustrates screens for performing payment by combining a plurality of payment methods, according to an exemplary embodiment.

As shown inFIG. 16 (a), the user may select a plurality of payment methods (Card1and Coupon2) from a payment method list. At this time, as shown inFIG. 16 (b), the mobile terminal300may pay $100 with Coupon2and $200 with Card1, from a payment amount of $300.

FIG. 17illustrates a screen for providing a shopping list (shopping basket) in the mobile terminal300, according to an exemplary embodiment.

According to an exemplary embodiment, the mobile terminal300may receive transaction information respectively corresponding to a plurality of products from the display device200through an NFC. The mobile terminal300may display a list of the received transaction information respectively corresponding to the plurality of products. Here, the user may check the transaction information and select a product to be paid. For example, when the user selects Product1and Product2, the mobile terminal300may pay for Product1and Product2at once.

According to an exemplary embodiment, the mobile terminal300may receive transaction information from different display devices. For example, the mobile terminal300may receive transaction information about Product1from a kiosk, about Product2from a smart TV, and about Product3from a vending machine. Here, the mobile terminal300according to an exemplary embodiment may further receive location information of the display device200from the display device200.

According to an exemplary embodiment, the mobile terminal300may transmit information about Product1to a second display device after receiving the information about Product1from a first display device. Here, the second display device may request and receive transaction information about Product1from the seller server100, and then transmit the transaction information about Product1to the mobile terminal300.

FIG. 18is a block diagram of the mobile terminal300according to an exemplary embodiment.

As shown inFIG. 18, the mobile terminal300according to an exemplary embodiment may include a communication unit310, a user input unit320, an output unit330, a memory340, and a control unit350(e.g., a controller). However, not all components ofFIG. 18are essential. The mobile terminal300may be realized by using more or less components than those shown inFIG. 18.

The components of the mobile terminal300will now be described in detail.

The communication unit310may include one or more components enabling a communication between the mobile terminal300and the display device200or a communication between the mobile terminal300and the payment server400. For example, the communication unit310may include a short-range wireless communication module311, a wireless internet module313, a mobile communication module315, and a location information module317.

The short-range wireless communication module311is a module for establishing short-range wireless communication. Examples of a short-range wireless communication technology include WLAN (Wi-Fi), Bluetooth, Zigbee, WFD, UWB, Infrared-ray communication (Infrared data association (IrDA)), Near Field Communication (NFC), but are not limited thereto.

The wireless internet module313is a module for a wireless internet access, and may be embedded in or disposed outside the mobile terminal300.

The mobile communication module315transmits and receives a wireless signal to and from at least one of a base station on a mobile communication network, the display device200outside the mobile terminal300, and the payment server400. Here, examples of the wireless signal include a voice call signal, an image call signal, and data in any one of various formats according to text/multimedia message transmission and reception.

The location information module317is a module for checking or obtaining a location of the mobile terminal300. An example of the location information module317includes a Global Positioning System (GPS) module. The GPS module receives location information from a plurality of satellites.

The communication unit310may receive transaction information about at least one product displayed on the display device200from the display device200through the NFC. Here, the communication unit310may receive transaction information encoded in NDEF. The communication unit310may further receive at least one of location information and ID information of the display device200.

According to an exemplary embodiment, the communication unit310may communicate directly with the display device200or communicate with an intermediate device (not shown) such as a set-up top box, dongle, etc. connected to the display device200. The intermediate device may be connected to the display device200through a data port including an HDMI, DVI, USB or other interface.

According to an exemplary embodiment, the communication unit310may request the transaction information from the display device200through the NFC.

According to an exemplary embodiment, the mobile device300may also receive the transaction information or other information by detecting an audible or inaudible sound that is encoded with the transaction information or other information by using a microphone or other device (not shown).

According to an exemplary embodiment, the mobile device300may also receive the transaction information or other information by capturing an image from the display device200by using an image sensor or other imaging device (not shown). The captured image may include display device information, product information and/or transaction information that is detectable by the mobile device300or may be compared with images in an image database to extract display device information, product information and/or transaction information.

The communication unit310may receive a payment authorization result on a payment request from the payment server400. According to an exemplary embodiment, the communication unit310may receive a payment authorization result on a payment request from the payment server400through the display device200.

The user input unit320may be used by the user to input data for controlling the mobile terminal300. For example, the user input unit320may include a keypad, a dome switch, a touch pad (a contact capacitance type, a pressure resistance film type, an infrared ray detecting type, a surface ultrasonic conducting type, an integral tension measuring type, or a piezo-effect type), a jog wheel, or a jog switch. Specifically, a touch screen is formed when the touch pad forms a mutual layer structure with a display unit331.

The user input unit320may receive a selection on a payment method related to the user. The user input unit320may receive a selection of the user on a recommended payment method.

According to an exemplary embodiment, the user input unit320may receive authentication information about the payment method from the user. The authentication information according to an exemplary embodiment may include at least one of personal ID information about a certificate, personal ID information corresponding to a payment method, pattern input information corresponding to a payment method, and fingerprint information of the user.

The output unit330is used to output an audio signal, a video signal, or an alarm signal, and may include the display unit331, an audio output module333, and an alarm unit335.

The display unit331outputs and displays information processed in the mobile terminal300. For example, the display unit331may display transaction information received from the display device200and information about a payment method selected by the user. The display unit331may display a list of transaction information respectively corresponding to a plurality of products, i.e., a shopping list, or display a list of a plurality of payment methods.

The memory340may store a program for processing and controlling the control unit350. The memory340may perform a function for storing input and output data. For example, the memory340may store the transaction information received from the display device200and the information about the payment method related to the user.

Examples of the memory340include storage media, such as a flash memory, a hard disk type memory, a multimedia card micro type memory, a card type memory (for example, SD or XD memory), a random access memory (RAM), static RAM (SRAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), a programmable ROM (PROM), a magnetic memory, a magnetic disk, and an optical disk. The mobile terminal300may manage a web storage unit performing a storage function on the Internet.

The control unit350generally controls overall operations of the mobile terminal300. In other words, the control unit350may control the communication unit310, the user input unit320, the output unit330, and the memory340. The control unit350may be embodied by a processor, microprocessor, etc.

According to an exemplary embodiment, the control unit350may perform a payment process based on at least a part of the transaction information received from the display device200and the information about the payment method selected by the user. In other words, the control unit350may transmit a payment request including at least a part of the transaction information and the information about the payment method selected by the user to the payment server400through the communication unit310.

For example, the control unit350may generate a payment statement including at least a part of the transaction information and the information about the payment method selected by the user. Then, the control unit350may encode the generated payment statement and transmit the encoded payment statement to the payment server400.

The control unit350according to an exemplary embodiment may decode the transaction information when the transaction information encoded in NDEF is received.

According to an exemplary embodiment, the control unit350may obtain discount rate information about a plurality of payment methods based on the transaction information received from the display device200, and recommend a payment method based on the obtained discount rate information.

Alternatively, the control unit350may recommend a payment method based on use pattern information of the user on the plurality of payment methods.

The control unit350may authenticate access authority of the user on a payment method based on authentication information received from the user.

FIG. 19is a block diagram of the display device200according to an exemplary embodiment.

As shown inFIG. 19, the display device200according to an exemplary embodiment may include an output unit210, a selection unit220, a communication unit230, and a control unit240(e.g., a controller).

However, not all components ofFIG. 19are essential. The display device200may be realized by using more or less components than those shown inFIG. 19.

The components of the display device200will now be described in detail.

The output unit210is used to output an audio signal, a video signal, or an alarm signal, and may include a display unit211, an audio output module212, and an alarm unit (not shown).

The display unit211according to an exemplary embodiment may display a product list and seller ID information received from the display device200on a screen. The display unit211may display a list of a plurality of shopping applications respectively interlocked with a plurality of seller servers.

The display unit211may display transaction information received from the seller server100on the screen. Here, the display unit211may display a list of transaction information respectively corresponding to a plurality of products.

According to an exemplary embodiment, the display unit211may receive a payment authorization result from outside the display device200and display the payment authorization result on the screen.

When a touch screen is formed as the display unit211and a touch pad forms a layer structure, the display unit211may also be used as an input device as well as an output device. The display unit211may include at least one of a liquid crystal display, a thin-film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a 3-dimensional (3D) display, an electrophoretic display, and a transparent display.

The audio output module212outputs audio data received from the communication unit230or stored in a memory in a recording mode, a voice recognizing mode, or a broadcast receiving mode. The audio output module212may include a speaker or a buzzer.

The selection unit220may select a product to be transacted from at least one product displayed on the display device200, based on an external input. For example, the selection unit220may select an on-air product on the display device200at a point in time when the external input is received. Alternatively, the selection unit220may receive a user input on at least one product from the product list to select a product to be transacted.

The communication unit230may include one or more components enabling a communication between the display device200and the seller server100or a communication between the display device200and the mobile terminal300. For example, the communication unit230may include a broadcast reception module231, a short-range wireless communication module232, a location information module233, a wired internet module234, and a wireless internet module235.

The broadcast reception module231receives a broadcast signal and/or broadcast-related information from an external broadcast management server through a broadcasting channel. Examples of the broadcasting channel include a satellite channel and a terrestrial channel.

The short-range wireless communication module232is a module for establishing short-range wireless communication. Examples of a short-range wireless communication technology include WLAN (Wi-Fi), Bluetooth, Zigbee, WFD, UWB, and Infrared-ray communication (IrDA), Near Field Communication (NFC), but are not limited thereto.

The location information module233is a module for checking or obtaining the location of the display device200. For example, the location information module233may be a GPS module. The GPS module receives location information from a plurality of satellites. Here, the location information may include coordinate information indicated in latitude and longitude.

The communication unit230may receive an external input on a selection on a product to be transacted through one of an infrared-ray communication, an NFC, Bluetooth, WFD, UWB, and a WLAN.

The communication unit230may request transaction information about the product to be transacted from the seller server100, and receive the transaction information from the seller server100. Here, the communication unit230may request transaction information about a home shopping product from the seller server100based on broadcasting channel information and broadcasting hour information.

The communication unit230may transmit the received transaction information to the mobile terminal300through an NFC. Here, the communication unit230may transmit the transaction information encoded in NDEF to the mobile terminal300.

According to an exemplary embodiment, the communication unit230may communicate directly with the mobile terminal300or communicate with an intermediate device such as a set-up top box, dongle, etc. connected to the mobile terminal300. The intermediate device may be connected to the mobile terminal300through a data port such as an HDMI, DVI, USB or other interface.

The communication unit230may receive the product list and the seller ID information from the seller server100. The communication unit230may receive the transaction information respectively corresponding to the plurality of products from the seller server100.

The communication unit230may receive the payment authorization result on the product to be transacted from at least one of the seller server100, the mobile terminal300, and the payment server400.

The control unit240generally controls overall operations of the display device200. In other words, the control unit240may control the output unit210, the selection unit220, and the communication unit230. The control unit240may be embodied by a processor, microprocessor, etc.

According to an exemplary embodiment, the control unit240may encode the transaction information received from the seller server100in NDEF. The control unit240may store the transaction information encoded in NDEF in an NFC tag.

The control unit240may delete the transaction information transmitted to the mobile terminal300from the NFC tag.

According to an exemplary embodiment, the control unit240may receive a selection on at least one application from the list of the plurality of shopping applications from the user. Here, the control unit240may execute the selected application and request a product list from the seller server100corresponding to the selected application.

The exemplary embodiments may program commands executable via any computer means and recorded in a computer-readable recording medium. The computer-readable recording medium may include a program command, a data file, and a data structure solely or in combination. The program commands recorded in the computer-readable recording medium may be specifically designed and configured for an exemplary embodiment. Examples of the computer-readable recording medium include magnetic media (e.g., hard disks, floppy disks, and magnetic tapes), optical media (e.g., CD-ROMs and DVDs), magneto-optical media (e.g., floptical disks), and hardware devices specifically configured to store and execute program commands (e.g., ROMs, RAMs, and flash memories). Examples of program commands include not only machine language codes prepared by a compiler, but also high-level language codes executable by a computer by using an interpreter.

According to an exemplary embodiment, since the mobile terminal300directly performs a payment process on a product displayed on the display device200, information about a payment method of a user may be prevented from being leaked.

The product displayed on the display device200may be easily paid through a simple gesture of a user touching the mobile terminal300to the display device200.