Display device for transmitting advertisement content and method for controlling same

1. A display device comprising:

a communication unit configured to transmit and receive data;

a display to display content;

a memory storing one or more instructions; and

at least one processor configured to execute the one or more instructions stored in the memory to:

download a copy of blocks connected in a form of a chain from an electronic device on a blockchain network, the blocks containing a plurality of smart contracts that is contracts corresponding to a plurality of advertisement content items, respectively,

obtain content-related information by using at least one of a frame of the content and a content recognition artificial intelligence (AI) algorithm, the content-related information including category of the content,

generate viewing information about the content, based on at least one of usage history of the display device, user input and the content-related information,

determine advertisement content related to the content from among the plurality of advertisement content items based on the viewing information and the plurality of smart contracts, wherein the advertisement content includes advertisement content metadata,

broadcast a record information indicating that the advertisement content has been determined to the blockchain network,

receive a signal indicating that a new block generated based on the record information is valid and information about the new block, append the new block to the downloaded copy of blocks, based on the information about the new block,

in response to receipt of the signal indicating that the new block is valid, receive the determined advertisement content from an advertiser device based on the advertisement content metadata,

detect an occurrence of a predefined event while the content is being displayed, and

reproduce the received advertisement content upon detection of the predefined event.

2. The display device of claim 1 , wherein the viewing information includes at least one of information about a user viewing the content, metadata of the content, information about a user's viewing history of the content, information about a date of reproduction or a number of times of reproduction of the content, or the category of the content.

3. The display device of claim 1 ,

wherein the plurality of smart contracts include advertisement content parameters corresponding to the plurality of advertisement content items, respectively, and

wherein the at least one processor is further configured to determine the advertisement content by matching the advertisement content parameters with the viewing information.

4. The display device of claim 3 , wherein the advertisement content parameters include at least one of information about a user who will view the advertisement content, information about a reproduction duration of the advertisement content, or advertiser information.

5. The display device of claim 1 ,

wherein the advertisement content metadata further includes at least one of a reproduction duration of the advertisement content, a title, a language, or a storage location,

wherein the at least one processor is further configured to receive the determined advertisement content by using the advertisement content metadata.

6. The display device of claim 1 , wherein the new block is appended to the blocks in a form of a chain and shared with the advertiser device and the other display devices.

7. The display device of claim 1 ,

wherein the at least one processor is further configured to provide exposure data of the determined advertisement content to the advertiser device, and

wherein the exposure data of the advertisement content includes at least one of a number of times of reproduction of the advertisement content, or a reproduction duration of the advertisement content.

8. The display device of claim 7 , wherein the at least one processor is further configured to receive information about tokens from the advertiser device based on the exposure data of the advertisement content.

9. The display device of claim 1 ,

wherein the predefined event includes at least one of an interrupt signal, an audio, or a user input.

10. The display device of claim 1 ,

wherein the display includes a first display and a second display, and

wherein the at least one processor is further configured to execute the one or more instructions to control the first display and the second display such that the advertisement content is reproduced on the second display while the content is being displayed on the first display.

11. The display device of claim 1 , wherein the at least one processor is further configured to control the communication unit to transmit, to an external device interworking with the display device, the advertisement content and information for controlling reproduction of the advertisement content.

12. A method of controlling a display device, the method comprising:

displaying content;

downloading a copy of blocks connected in a form of a chain from an electronic device on a blockchain network, the blocks containing a plurality of smart contracts that is contracts corresponding to a plurality of advertisement content items, respectively,

obtaining content-related information by using at least one of a frame of the content and a content recognition artificial intelligence (AI) algorithm, the content- related information including category of the content;

generating viewing information about the content, based on at least one of usage history of the display device, user input and the content-related information;

determining advertisement content related to the content from among the plurality of advertisement content items based on the viewing information and the plurality of smart contracts, wherein the advertisement content includes advertisement content metadata;

broadcasting a record information indicating that the advertisement content has been determined to the blockchain network;

receiving a signal indicating that a new block generated based on the record information is valid and information about the new block;

appending the new block to the downloaded copy of blocks, based on the information about the new block;

in response to receipt of the signal indicating that the new block is valid, receiving the determined advertisement content from an advertiser device based on the advertisement content metadata;

detecting an occurrence of a predefined event while the content is being displayed; and

reproducing the received advertisement content upon detection of the predefined event.

13. The method of claim 12 ,

wherein the plurality of smart contracts include advertisement content parameters corresponding to the plurality of advertisement content items, respectively, and

wherein the determining of the advertisement content comprises determining the advertisement content by matching the advertisement content parameters with the viewing information.

14. A computer-readable recording medium storing one or more instructions for controlling a display device, wherein the one or more instructions cause the display device to:

display content;

download a copy of blocks connected in a form of a chain from an electronic device on a blockchain network, the blocks containing a plurality of smart contracts that is contracts corresponding to a plurality of advertisement content items, respectively;

obtain content-related information by using at least one of a frame of the content and a content recognition artificial intelligence (AI) algorithm, the content-related information including category of the content;

generate viewing information about the content, based on at least one of usage history of the display device, user input and the content-related information;

determine advertisement content related to the content from among the plurality of advertisement content items based on the viewing information and the plurality of smart contracts, wherein the advertisement content includes advertisement content metadata;

broadcast a record information indicating that the advertisement content has been determined to the blockchain network;

receive a signal indicating that a new block generated based on the record information is valid and information about the new block;

append the new block to the downloaded copy of blocks, based on the information about the new block;

in response to receipt of the signal indicating that the new block is valid, receive the determined advertisement content from an advertiser device based on the advertisement content metadata;

detect an occurrence of a predefined event while the content is being displayed; and

reproduce the received advertisement content upon detection of the predefined event.