KR20150073061A - Electronic tag with multi display areas, electronic shelf label system, and operating method of the same - Google Patents

Abstract

An electronic price indicator according to an embodiment of the present invention comprises: a wireless communications part receiving a data packet including a display identification flag and product information; a control part controlling a screen display of the product information based on the display identification flag; and a driver part having first to n^th drivers individually controlled by the control part; and a single display panel including a display part having first to n^th display areas displaying the product information by being individually operated by each of the first to n (n is a natural number of at least two)^th drivers displaying the product information.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic price display system, an electronic price display system, and an electronic price display system using the electronic price display system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic price indicator, an electronic price display system, and an operation method thereof having a multi-display area.

Previously, in the method of displaying product information for a buyer on a product shelf, a paper tag which has been written directly by hand or displayed price information printed on a printer has been used. However, such a paper tag has a disadvantage that the paper tag must be replaced every time when the price information of the product is changed or the product is changed.

Electronic shelf labels (ESL) have been researched and developed to compensate for the disadvantages of the paper tag method. In recent years, electronic price indicators have been applied to some product shelves have. An electronic price display system including a plurality of such electronic price indicators may be installed in the store.

Generally, the electronic price display system is a system that can electronically display and change product information installed on a product shelf.

In such an electronic price display system, the electronic price display system may include a server, a plurality of wired gateways connected to one upper server, and a plurality of electronic price indicator groups connected in groups to each of the plurality of repeaters wirelessly. have.

The upper server may provide product information including price information by wire communication with each of the plurality of repeaters.

Each of the plurality of repeaters can transmit the product information received from the upper server to the corresponding electronic price indicator group by wireless communication.

At this time, the electronic price indicator group can receive the product information by wireless communication and display the price information included in the product information on the display unit.

Each of the plurality of repeaters may form a PAN (Personal Area Network) communication network for performing wireless communication by dividing each group including a plurality of electronic price indicators, wherein the plurality of electronic price indicator groups includes a group ID (Group ID), and a plurality of electronic price indicators can be identified by a MAC address.

Such an electronic price display system has the advantage that product information can be automatically updated through a wireless communication method and product information can be changed quickly.

However, in the conventional electronic price display system, since one electronic price indicator can only output one item of goods information, it is not possible to display two items of goods independently from each other using one electronic price indicator, There is a problem in that it is not possible to display the information and the publicity information independently of each other.

Accordingly, in a system using one display panel, such as an electronic price indicator of an electronic price display system, research and development of a technology for efficiently outputting and updating a large amount of information through a single display panel is required.

Patent Document 1 described in the following prior art documents relates to a display driving circuit, but does not provide a solution to the above-mentioned problem.

Korean Patent Publication No. 2007-0028839

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the conventional art, and it is an object of the present invention to independently display a single display panel by dividing a display area of a single display panel into a plurality of display areas, An electronic price display system, an electronic price display system, and an operation method thereof are provided, which have a multi display area capable of efficiently displaying various merchandise information on a single display panel.

According to a first embodiment of the present invention, there is provided an information processing apparatus comprising: a wireless communication unit for receiving a data packet including a display identification flag and product information; A control unit for controlling screen display of the product information based on the display identification flag; And a driver unit having first to n-th drivers that are individually controlled by the control unit, and driving units independently driven by the first to the n-th (n is a natural number of at least 2) drivers, A display panel having first to n-th display areas for displaying the first to n-th display areas; An electronic price display system and an operation method thereof are proposed.

According to the embodiment of the present invention, when displaying the product information in the full display mode with respect to one single display panel, a large screen of the electronic price indicator can be realized, thereby ensuring visibility, In the case of displaying information, it is possible to separately display price information and PR (one embodiment of the invention) information in independent display areas, thereby reducing system load (system load reduction), signal processing power, battery saving, And the multi display regions of one single display panel can be driven independently of each other, so that the manufacturing material cost can be reduced compared to manufacturing a plurality of display panels.

1 is a configuration diagram of an electronic price display system according to an embodiment of the present invention.
2 is a block diagram of an electronic price indicator according to an embodiment of the present invention.
3 is a first embodiment of a display identification flag of a data packet (DATA-PKT) according to an embodiment of the present invention.
4 is a diagram illustrating an example of product information according to an embodiment of the present invention.
5 is a diagram illustrating an example of product information according to an embodiment of the present invention.
6 is a view illustrating a display area of a single display panel of an electronic price indicator according to an embodiment of the present invention.
7 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.
8 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.
FIGS. 9A, 9B and 9C are views showing display examples of a single display panel according to an embodiment of the present invention.
FIGS. 10A and 10B illustrate a portrait mode or a landscape mode according to an exemplary embodiment of the present invention.
11 is a second embodiment of a display identification flag of a data packet according to an embodiment of the present invention.
12 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.
13 is a diagram illustrating a third embodiment of a display identification flag of a data packet according to an embodiment of the present invention.
14 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.
15 is an operational flowchart of an electronic price display system according to an embodiment of the present invention.

It should be understood that the present invention is not limited to the embodiments described and that various changes may be made without departing from the spirit and scope of the present invention.

In addition, in each embodiment of the present invention, the structure, shape, and numerical values described as an example are merely examples for helping understanding of the technical matters of the present invention, so that the spirit and scope of the present invention are not limited thereto. It should be understood that various changes may be made without departing from the spirit of the invention. Embodiments of the present invention may be combined with one another to form various new embodiments.

In the drawings referred to in the present invention, components having substantially the same configuration and function as those of the present invention will be denoted by the same reference numerals.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order that those skilled in the art may easily implement the present invention.

First, an electronic price indicator and an electronic price display system and an operation method thereof according to an embodiment of the present invention will be briefly described.

Each of the plurality of electronic price indicators includes a single display panel, wherein the display area of the single display panel is divided into a plurality of display areas, the plurality of display areas being independently driven by the drivers, The controller of each of the plurality of electronic price indicators can control the product information displayed in the plurality of display areas of the single display panel through the corresponding driver based on the display identification flag included in the data packet.

With this operation, the product information can be individually displayed on the plurality of display areas of the single display panel. This is described in detail below.

1 is a configuration diagram of an electronic price display system according to an embodiment of the present invention. Referring to FIG. 1, an electronic price display system according to an embodiment of the present invention may include a server 100, a repeater 200, and a plurality of electronic price indicators 300.

The server 100 may generate a data packet (DATA-PKT) including a display identification flag (DIF) and product information and transmit the data packet to the plurality of repeaters 200 by wire or wirelessly.

The repeater 200 can wirelessly transmit the data packet (DATA-PKT) transmitted from the server 100 to the plurality of electronic price indicators 300.

Each of the plurality of electronic price indicators 300 may receive a data packet (DATA-PKT) from the repeater 200 and may receive the data packet (DATA-PKT) according to the display identification flag DIF included in the data packet It is possible to display the goods information.

Here, the product information may include price information of the product and information on the advertisement of the product. The price information of the goods may include name, price, expiration date, country of origin, quantity, manufacturer information, etc., and the advertisement information may be, for example, discount sale, And is not particularly limited as long as it is information distinguished from the price information of ordinary commodities.

2 is a block diagram of an electronic price indicator according to an embodiment of the present invention.

Referring to FIG. 2, each of the plurality of electronic price indicators 300 may include a wireless communication unit 310, a control unit 320, and a single display panel 340.

In addition, the electronic price indicator 300 may further include a memory unit 330.

The wireless communication unit 310 may receive a data packet (DATA-PKT) including at least one bit of a display identification flag (DIF) and product information.

The control unit 320 can control the screen display of the product information based on the display identification flag DIF.

The memory unit 330 may store the data packet (DATA-PKT).

The single display panel 340 includes a driver unit 341 and a display unit 342. The driver unit 341 includes first through n-th drivers DR1 through DRn that are individually controlled by the controller 320. [

The display unit 342 is driven independently of each of the first to n-th drivers DR1 to DRn (n is a natural number of at least 2), and the first to the n-th display regions DA1-DA).

The display identification flag DIF may include 1 bit, 2 bits, or at least 3 bits to identify the display area of the goods information. This will be described with reference to Figs. 3, 11 and 13. Fig.

3 is a first embodiment of a display identification flag of a data packet (DATA-PKT) according to an embodiment of the present invention. Referring to FIG. 3, a data packet (DATA-PKT) consists of a header part, a data part, and a footer called a MAC footer.

The header part is composed of a synchronization header (SHR), a PHY header (PHR), and a MAC header.

The data part is called a MAC service data unit, and may include a display identification flag (DIF) and a data payload.

Herein, in an embodiment of the present invention, the display identification flag DIF is included in a MAC service data unit, but the present invention is not limited thereto, Part or footer part.

Therefore, the display identification flag DIF need not be limited to a specific part or a specific position as long as it is included in the data packet (DATA-PKT). Hereinafter, for the sake of convenience, the display identification flag DIF may be included in a MAC service data unit.

For example, when the display identification flag DIF of the data packet DATA-PKT is 1 bit, the 1-bit display identification flag DIF is represented by different information "0" or "1" .

For example, the 1-bit display identification flag (DIF) may represent two pieces of information, that is, a product A or a product B. In another example, the 1-bit display identification flag (DIF) Or whether it is a product promotion information.

4 is a diagram illustrating an example of product information according to an embodiment of the present invention.

4, product information (ESL information) of the data packet (DATA-PKT) includes a tag ID (electronic price indicator ID) FF33, a product ID AB16, price information 1000, sale.

As described above, the product information of the data packet may include price information and promotion information. If such a data packet is used, the electronic price indicator may display promotion information separately from the price information.

5 is a diagram illustrating an example of product information according to an embodiment of the present invention. 5, product information (ESL information) of the data packet (DATA-PKT) includes one tag ID (FF33), two product IDs AB16 and AB17, price information 1000, . ≪ / RTI >

On the other hand, with reference to Figs. 1 to 5, such product information is transmitted to the electronic price display server 100 from the distribution center central server with price information for each product ID in the in-store sale product. An electronic price indicator 300 is provided for each product in the retail store and management data including product information of the electronic price indicator can be stored and managed in the server 100. [

The server 100 generates product information that can manage the store by combining the product information and the price information received from the central server and the electronic price indicator and the product information received from the gateway 200 .

The product information thus generated may be transmitted from the server 100 to the electronic price indicator 300 through the repeater 200 and displayed on the single display panel of the corresponding electronic price indicator.

As described above, the conventional electronic price indicator can display product information for one product through one single display panel. However, the single display panel according to an embodiment of the present invention can display price information of two products Or price information and promotional information of one product can be displayed.

To this end, in the process of installing the electronic price indicator in advance, the electronic price indicator ID and the product ID are matched to each other and sent to the server 100, information on the two goods is matched to one electronic price indicator, The server 100 may match one commodity to one electronic price indicator or two commodities may be matched to one electronic price indicator, and in accordance with the matching, the commodity information Can be managed and controlled.

6 is a view illustrating a display area of a single display panel of an electronic price indicator according to an embodiment of the present invention.

Referring to FIG. 6, the single display panel 340 may include a driver unit 341 and a display unit 342.

The driver unit 341 may include first and second drivers DR1 and DR2 that are separately controlled by the controller 320. [ Here, each of the first and second drivers DR1 and DR2 may be a driver IC.

The display unit 342 is driven independently of each other by the first and second drivers DR1 and DR2 and displays first and second display areas DA1 and DA2 ).

Here, the division of the single display panel 340 into the first and second display areas DA1 and DA2 is merely an example for convenience of description, and the present invention is not limited thereto.

At this time, the controller 320 can transmit control signals and driving data through interface communication with the first and second drivers DR1 and DR2. For example, Serial-to-Peripheral Interface (SPI) communication is applied The controller 320 may be a master and each of the first and second drivers DR1 and DR2 may be a first slave and a second slave.

In this case, the controller 320 can select a corresponding slave according to the state of the display identification flag DIF included in the data packet using the chip select signal. For example, the controller 320 may provide the chip select signal as a "Low" signal to select a drive as a slave.

In this manner, the control unit 320 can transmit the display data to the driver, which is the selected slave, and control the corresponding information to be displayed in a specific display area.

7 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.

7, the wireless communication unit 310 of the corresponding electronic price indicator receives the data packet (DATA-PKT) (S310), and the control unit 320 of the electronic price indicator 300 transmits the data The state of the display identification flag DIF included in the packet (DATA-PKT) can be determined (S311).

The control unit 320 of the electronic price indicator 300 determines the product information of the product A when one bit of the display identification flag DIF is "1 " The display of the product information can be controlled in the first display area DA1 through the driver DR1 (S312).

Alternatively, if one bit of the display identification flag DIF is "0 ", the control unit 320 determines the product information of the product B and transmits the product information to the second driver DR2 of the single display panel 340 The display of the product information can be controlled in the second display area DA2 (S313).

8 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.

8, the wireless communication unit 310 of the corresponding electronic price indicator receives the data packet (DATA-PKT) (S310), and the control unit 320 of the electronic price indicator 300 transmits the data The state of the display identification flag DIF included in the packet (DATA-PKT) can be determined (S311).

The control unit 320 of the electronic price indicator 300 determines the price information of the product if one bit of the display identification flag DIF is "1 " It is possible to control the display of the price information in the first display area DA1 through the first display area DR1 (S312).

Alternatively, if one bit of the display identification flag (DIF) is "0 ", the control unit 320 determines that the advertisement information is the advertisement information of the product and transmits the advertisement information through the second driver DR2 of the single display panel 340 The display of the advertisement information can be controlled in the second display area DA2 (S313).

As described above, when the single display panel 340 is divided into the first and second display areas DA1 and DA2, for example, by using the first and second display areas DA1 and DA2, An example of displaying the product information will be described with reference to Figs. 9A, 9B, 9C, 10A and 10B. An example of displaying the product information using the first and second display areas DA1 and DA2 may be an example of displaying the product information using the first and second display areas DA1 and DA2 separately The present invention is not limited to the specifically illustrated embodiment.

FIGS. 9A, 9B and 9C are views showing display examples of a single display panel according to an embodiment of the present invention.

FIG. 9A illustrates an example of displaying product information for one product on one large screen through the first and second display areas DA1 and DA2. For example, the single display panel 340 may display product information on one product in the entire display mode in the first and second display areas DA1 and DA2 under the control of the controller.

FIG. 9B shows an example in which different price information and promotional information are displayed in the first and second display areas DA1 and DA2, respectively. For example, the single display panel 340 may display pricing information and promotion information for the same single product in the split display mode in the first and second display areas DA1 and DA2, under the control of the controller Can be displayed.

FIG. 9C shows an example of displaying the price information of the product A and the price information of the product B in the first and second display areas DA1 and DA2, respectively. For example, the single display panel 340 may display price information for two different products in the divided display mode in the first and second display areas DA1 and DA2 under the control of the controller have.

FIGS. 10A and 10B illustrate a portrait mode or a landscape mode according to an exemplary embodiment of the present invention.

10A shows an example in which price information and PR information are displayed in a portrait mode in each of the first and second display areas DA1 and DA2.

FIG. 10B shows an example in which price information and promotional information are displayed in a landscape mode in each of the first and second display areas DA1 and DA2.

As described above, the different modes can be produced and formed to suit product information, or the arrangement of the two display areas of the single display panel can be made to correspond to the corresponding mode. In particular, It is not limited.

11 is a second embodiment of a display identification flag of a data packet according to an embodiment of the present invention.

Referring to FIG. 11, the display identification flag DIF may include two first bits B1 and a second bit B2 to identify the display area of the merchandise information.

In this case, the first bit (B1) is a bit for discriminating whether it is a full display mode or a divided display mode, the second bit (B2) is information to be displayed in the first display area, / RTI >

12 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.

Hereinafter, an operation description of the electronic price indicator according to an embodiment of the present invention will be described with reference to FIGS. 1 and 11. Accordingly, The possible redundant description may be omitted.

Referring to FIG. 12, the wireless communication unit 310 of the electronic price indicator 300 receives a data packet (DATA-PKT) (S310). The data packet (DATA-PKT) may include a display identification flag (DIF) and product information.

The control unit 320 of the electronic price indicator 300 determines one display mode of the divided display mode or the full display mode for the single display panel 340 according to the first bit of the display identification flag DIF (S330).

Next, the control unit 320 determines one of the first and second display areas DA1 and DA2 of the single display panel 340 according to the second bit of the display identification flag DIF S350).

The controller 320 may display the goods information in at least the first and second display areas DA1 and DA2 of the single display panel 340 according to the determination result of the display mode and the display area (S370).

13 is a diagram illustrating a third embodiment of a display identification flag of a data packet according to an embodiment of the present invention.

Referring to FIG. 13, the display identification flag DIF may include a first bit, a second bit and a third bit to identify the display area of the goods information.

At this time, the first bit (B1) is a bit identifying whether the first bit (B1) is the whole display mode or the divided display mode, and the second bit (B2) is a bit for identifying the product information of one product or the product information of two products . The third bit B3 is a bit for identifying whether it is information to be displayed in the first display area or information to be displayed in the second display area.

14 is a flowchart illustrating an operation method of an electronic price indicator according to an embodiment of the present invention.

Hereinafter, an operation of the electronic price indicator according to an embodiment of the present invention will be described with reference to FIGS. 1 and 13, The possible redundant description may be omitted.

Referring to FIG. 14, the wireless communication unit 310 of the electronic price indicator 300 receives a data packet (S310).

The control unit 320 determines whether the single display panel 340 is in the split display mode or the full display mode according to the first bit of the display identification flag DIF at step S330.

Next, the controller 320 determines whether each of the first and second display areas DA1 and DA2 of the single display panel 340 displays the information of one item according to the second bit of the display identification flag DIF (Step S340). If it is determined that the display of the information of the two products is different

Next, the control unit 320 determines a designated area of one of the first and second display areas DA1 and DA2 according to the third bit of the display identification flag DIF at step S350.

The control unit 320 displays the goods information in at least the first and second display areas DA1 and DA2 of the single display panel 340 according to the display mode, the number of items, (S370).

15 is an operational flowchart of an electronic price display system according to an embodiment of the present invention. 15, in step 100, the server 100 may transmit a display identification flag (DIF) and a data packet (DATA-PKT) including data to the repeater 200.

Next, in step S200, the repeater 200 can wirelessly transmit the data packet (DATA-PKT).

In step S300, each of the plurality of electronic price indicators 300 receives the data packet (DATA-PKT) from the repeater 200 and transmits the data to at least the first And a display unit 342 having a first display area DA1 and a second display area DA2.

As described above, embodiments of the present invention can be combined with each other to implement various new embodiments. In particular, when the operation method of the electronic price indicator shown in FIGS. 12 and 14 is applied to an operation method of the electronic price display system A method of operating a new electronic price display system can be implemented.

100: Server
200: Repeater
300: Electronic price indicator
310:
320; The control unit
330: memory unit
340: Single display panel

Claims (23)

A wireless communication unit for receiving a data packet including a display identification flag and product information;
A control unit for controlling screen display of the product information based on the display identification flag; And
A driver section having first to n-th drivers that are controlled by the control section individually; and a driver section that is independently driven by each of the first to n-th (n is a natural number of at least two) drivers, A single display panel including a display unit having first to n-th display areas for displaying;
An electronic price indicator.
2. The display device according to claim 1,
An electronic price indicator including 1 bit, 2 bits, or at least 3 bits to identify the display area of the goods information.
A wireless communication unit for receiving a data packet including at least one bit of a display identification flag and product information;
A control unit for controlling screen display of the product information based on the display identification flag; And
A driver section having at least first and second drivers controlled individually by the control section; and at least first and second drivers that are independently driven by the first and second drivers, respectively, A single display panel including a display portion having two display regions;
An electronic price indicator.
4. The display device according to claim 3,
And a first bit and a second bit to identify the display area of the goods information.

5. The apparatus of claim 4,
Determining one of a split display mode and a full display mode for the single display panel according to a first bit of the display identification flag,
And determines one of the first and second display areas of the single display panel according to the second bit of the display identification flag.
4. The display device according to claim 3,
And a first bit, a second bit and a third bit to identify the display area of the goods information.
7. The apparatus of claim 6,
Determining one of a split display mode and a full display mode for the single display panel according to a first bit of the display identification flag,
Determines whether the first and second display areas of the single display panel are information displays of one product or two different products according to a second bit of the display identification flag,
And determines one of the first and second display areas according to a third bit of the display identification flag.
The display device according to claim 7, wherein the single display panel comprises:
And displays product information on one product in the entire display mode in the first and second display areas under the control of the controller.
The display device according to claim 7, wherein the single display panel comprises:
And displays information on two different goods in the split display mode in each of the first and second display areas under the control of the controller.
The display device according to claim 6, wherein the single display panel comprises:
And displays information about the same one item in the split display mode in each of the first and second display areas under the control of the controller.
A server for generating a data packet including a display identification flag and product information;
A repeater for wirelessly transmitting the data packet; And
A plurality of electronic price indicators for receiving the data packets; Lt; / RTI >
Wherein each of the electronic price indicators comprises:
A wireless communication unit for receiving a data packet wirelessly;
A control unit for controlling screen display of product data included in the data packet based on the display identification flag; And
A driver section having at least first and second drivers that are controlled individually by the control section; and at least first and second drivers that are independently driven by the first and second drivers, respectively, A single display panel including a display portion having two display regions;
An electronic price indicator.
A method of operating an electronic price indicator including a single display panel including a display unit having at least first and second display areas,
Wirelessly receiving a data packet including a display identification flag and data;
Determining whether the display mode is a full display mode or a split display mode based on the display identification flag;
Determining a display area of any one of the first and second display areas based on the display identification flag when the divided display mode is determined; And
Displaying the product information in at least first and second display areas of the single display panel according to the determination result of the display mode and the display area;
Wherein the electronic price indicator comprises an electronic price indicator.
13. The display device according to claim 12,
And a first bit and a second bit for determining a display mode and a display area for the first and second display areas.
A method of operating an electronic price indicator including a single display panel including a display unit having at least first and second display areas,
Wirelessly receiving a data packet including a display identification flag;
Determining whether the display mode is a full display mode or a split display mode based on the display identification flag;
Determining whether the information on two different products or information on the same one item is information based on the display identification flag when the divided display mode is determined;
Determining one of the first and second display areas based on the display identification flag based on the display identification flag; And
Displaying the product information in at least first and second display areas of the single display panel according to the display mode, the number of items, and the determination result of the display area;
Wherein the electronic price indicator comprises an electronic price indicator.
15. The display device according to claim 14,
And a first bit, a second bit and a third bit to identify the display area of the goods information.
15. The display device according to claim 14,
And displaying product information on one product in the entire display mode in the first and second display areas under the control of the controller.
15. The display device according to claim 14,
And displaying product information on two different products in a split display mode in each of the first and second display areas under the control of the controller.
15. The display device according to claim 14,
And displaying product price information and product advertisement information in a split display mode in each of the first and second display areas under the control of the controller.
Transmitting a data packet including a display identification flag and data from the server to the repeater;
The repeater wirelessly transmitting the data packet; And
Each of the plurality of electronic price indicators receiving data packets from the repeater and displaying the data on a single display panel including a display having at least first and second display areas based on the display identification flag; Lt; / RTI >
Wherein the data display operation step of each of the plurality of electronic price indicators comprises:
Wirelessly receiving a data packet including a display identification flag;
Determining whether the display mode is a full display mode or a split display mode based on the display identification flag;
Determining whether the information on two different products or information on the same one item is information based on the display identification flag when the divided display mode is determined;
Determining one of the first and second display areas based on the display identification flag based on the display identification flag; And
Displaying the product information in at least first and second display areas of the single display panel according to the display mode, the number of items, and the determination result of the display area;
And displaying the electronic price display system.
20. The display device according to claim 19,
And a first bit, a second bit and a third bit to identify the display area of the goods information.
The display device according to claim 19, wherein the single display panel comprises:
And displaying the product information for one product in the first display mode in the first display mode under the control of the controller.
The display device according to claim 19, wherein the single display panel comprises:
And displaying product information on two different products in the split display mode in each of the first and second display areas under the control of the controller.
The display device according to claim 19, wherein the single display panel comprises:
And displaying product price information and product promotion information in a split display mode in each of the first and second display areas under the control of the controller.

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