Display device for displaying a price and/or product information

1. A self-checkout system, comprising

at least one display device; and

a base station configured to communicate with the at least one display device,

wherein the at least one display device comprises:

a memory stage configured to store a product data set which was received in a communication with the base station via a first radio interface of the display device,

a second radio interface configured to communicate with a self-checkout device, and

a processor configured to:

process a self-checkout request received from the self-checkout device and transmit the product data set via the second radio interface,

receive and store user and/or device identification data to identify a user of the self-checkout device and/or identify the self-checkout device when processing the self-checkout request, and

emit only the identification data to the base station for which a confirmation of the user of the self-checkout device is present as a consent for storing or self-checkout of the product data set received by the display device, and

wherein the system is configured such that the identification data received via the base station is forwarded directly or via a merchandise management system server coupled to the base station or via a billing system of a self-service market to an Internet-based search engine and/or to a data processing system of its operator, and

the confirmation of the user is confirmation of the user of the self-checkout device for carrying out self-checkout in the sense of a payment transaction for a product to which the product data set belongs.

2. The self-checkout system according to claim 1 , wherein

the memory stage of the display device comprises an availability data set linked to the product data set and with the aid of which the availability of the product data set can be controlled, and

the processor is configured to check the availability data set during the processing of the self-checkout request and to only transmit the product data set when it is available.

3. The self-checkout system according to claim 2 , wherein:

the availability concerns the product data set, and

the processor is configured to check the availability data set to see whether the product data set can be transmitted, and to process the self-checkout request accordingly.

4. The self-checkout system according to claim 2 , wherein:

the availability of the product data set concerns an availability in time in which the product data set is available, and

the processor is configured to check the availability data set to see whether the product data set is available limited in time, and to process the self-checkout request within the available time with the product data set, or outside of the available time with another product data set, or not at all, or by internal registering and/or communication to a merchandise management system.

5. The self-checkout system according to claim 4 , wherein the display device is configured to receive and store at least one of user identification data or device identification data for identification of at least one of the user of the self-checkout device or the self-checkout device when processing the request and to check the availability in time, taking into account a limitation of an amount of the product per user or an amount of the product per self-checkout device.

6. The self-checkout system according to claim 2 , wherein:

the availability of the product data set concerns the availability of an amount of product, and

the display device is configured to check the availability data set to see whether the product data set is limited in the amount of product, and to process the request within the limitation of the amount of the product and, if the limitation of the amount of the product is exceeded, to process the request with another product data set, or not at all, or by internal registering and/or communication to a merchandise management system.

7. The self-checkout system according to claim 6 ,

wherein the display device is configured to receive and store at least one of the user identification data or the device identification data for the identification of at least one of the user of the self-checkout device or the self-checkout device when processing the self-checkout request and to check the availability of the amount of product, taking into account a limitation of an amount of product per user or an amount of product per self-checkout device.

8. The self-checkout system according to claim 1 , wherein the display device is configured to deliver the identification data to the base station during a communication via the first radio interface.

9. The self-checkout system according to claim 1 , comprising:

at least one self-checkout device comprising:

a device radio interface, which is compatible with the second radio interface of the display device for communicating with the display device; and

a control stage configured to control the self-checkout request via the device radio interface to the first display device for transmitting the product data set from the first display device to the self-checkout device via the device radio interface.

10. The self-checkout system according to claim 1 , wherein the product data set has a link which makes it possible for the self-checkout device receiving the product data set to request information about the product and/or a price of the product via another communication connection.

11. The self-checkout system according to claim 1 , wherein the product data set itself comprises information about the product and/or a price of the product for being directly further processed.

12. The self-checkout system according to claim 1 , wherein the confirmation of the user comprises a fingerprint of a finger of the user.