Display device for displaying a price and/or product information

1. A self-checkout system comprising:

at least one display device comprising:

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

a second radio interface configured to perform RFID or NFC communication 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; and

at least one self-checkout device which is configured to send the self-checkout request to the display device, receive response data from the display device, and further process the self-checkout,

wherein the self-checkout device comprises:

a device radio interface which is compatible with the second radio interface of the display device and is for the RFID or NFC communication with the display device, and

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

wherein the control stage is configured to carry out a payment transaction for the product data set transmitted by the display device only when a consent of a user is detected in the self-checkout device with the aid of a detection stage.

2. The self-checkout system according to claim 1 , wherein the self-checkout device is configured to carry out individual payment transactions for each product data set among a plurality of product data sets.

3. The self-checkout system according to claim 2 , wherein the self-checkout device is configured to perform the individual payment transactions for each product data set directly during transmission of the product data sets from the display device.

4. A self-checkout system comprising:

at least one display device comprising:

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

a second radio interface configured to perform RFID or NFC communication 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, and

at least one self-checkout device which is configured to send the self-checkout request to the display device, receive response data from the display device, and further process the self-checkout, and

wherein the self-checkout device is configured to carry out individual payment transactions for each product data set among a plurality of product data sets, and

the self-checkout device is configured to release a stored list of a plurality of the product data sets at any time for billing or payment.

5. The self-checkout system according to claim 1 , wherein the self-checkout device comprises a product list memory stage which can be accessed with the aid of the control stage, wherein the product list memory stage is configured to store one or more product data sets.

6. The self-checkout system according to claim 1 , wherein the self-checkout device comprises the detection stage for detecting a confirmation of the user of the self-checkout device as the consent to store the product data set received by the display device, wherein the control stage cooperates with the detection stage or forms a unit with the detection stage and is configured to only store the product data set obtained as a consequence of the self-checkout request from the display device upon detecting the confirmation.

7. The self-checkout system according to claim 1 , wherein the self-checkout device is configured to fulfill a payment by the aid of a payment method stored in the self-checkout device.

8. The self-checkout system according to claim 7 , wherein the self-checkout device is configured to fulfill the payment using the stored payment method by communication, via the device radio interface included in the self-checkout device, with a payment terminal.

9. A self-checkout system comprising:

at least one display device comprising:

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

a second radio interface configured to perform RFID or NFC communication 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, and

at least one self-checkout device which is configured to send the self-checkout request to the display device, receive response data from the display device, and further process the self-checkout, wherein

the memory stage 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.

10. The self-checkout system according to claim 9 , 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 or not, and to process the self-checkout request accordingly.

11. The self-checkout system according to claim 9 , 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 availability in time with another product data set, or not at all, or by internal registering and/or communication to a merchandise management system.

12. The self-checkout system according to claim 9 , wherein

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

the processor 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 self-checkout request within the limitation of the amount of product with the product data set and, if the limitation of the amount is exceeded, to process the self-checkout request with another product data set, or not at all, or by internal registering and/or communication to a merchandise management system.

13. The self-checkout system according to claim 1 ,

wherein the processor is configured to receive and store user and/or device identification data for identification of the user of the self-checkout device and/or of the self-checkout device when processing the self-checkout request.

14. The self-checkout system according to claim 12 , wherein the processor is configured to receive and store user and/or device identification data for identification of a user of the self-checkout device and/or of the self-checkout device when processing the self-checkout request, and the processor is configured to check the availability of the amount, taking into account a limitation of the amount per user or a limitation of the amount per self-checkout device.

15. The self-checkout system according to claim 11 , wherein the processor is configured to receive and store user and/or device identification data for identification of a user of the self-checkout device and/or of the self-checkout device when processing the self-checkout request, and

the processor is configured to check the availability in time, taking into account a limitation of an amount of product per user or a limitation of the amount per self-checkout device.

16. The self-checkout system according to claim 13 , wherein the processor is configured to

deliver the identification data to the base station during a communication via the first radio interface.

17. The self-checkout system according to claim 16 , wherein

the processor is configured:

to deliver only the identification data to the base station for which a confirmation of the user of the self-checkout device for carrying out the payment transaction for the product data set is present as the consent for storing the product data set received by the display device.

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

the base station, which is configured to communicate with the display device.

19. The self-checkout system according to claim 2 , wherein the self-checkout device is configured to carry out a block payment transaction for a group or list of the product data sets collected in individual transmissions from the display device.