JP2014071516A - Display device for customer and control program thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily prevent different customers from peeping into display contents about merchandise purchased by a shopper.SOLUTION: A display device for customer includes a display part, display means, and non-display means. The display part provides a shopper with information. The display means displays at least merchandise names and sales prices of merchandise subjected to data processing by a device which processes sales data of the merchandise purchased by the shopper together with the total amount of the entire merchandise purchased by the shopper on a display part. The non-display means selectively makes each information of at least the merchandise names, the sales prices, and the total amount displayed in the display part non-display in accordance with an operation input of the shopper.

Description

  Embodiments described herein relate generally to a customer display device used in devices such as a POS (Point Of Sales) terminal, an electronic cash register, and an electronic toll balance, and a control program therefor.

  Devices such as POS terminals and electronic cash registers for processing product sales data, so-called product sales data processing devices, have customer display devices as means for providing information to shoppers. The customer display device is mounted on the device with the screen facing the shopper in order to make the customer confirm the product name, sales price, etc. of the product whose sales data has been processed by the product sales data processing device.

  On the shopper's side, in addition to customers who purchase products for which data processing is being performed by the product sales data processing apparatus, there are many other customers nearby. For this reason, it is possible for other customers to look into the content displayed on the display device for customers, and the privacy of shoppers is not protected.

JP 2010-218160 A

  The problem to be solved by the present invention is that a customer display device that can easily prevent other customers from peeping at the display contents related to the products purchased by the shopper and can easily protect the shopper's privacy. Is to provide.

  In one embodiment, the customer display device includes a display unit, display means, and non-display means. The display unit provides information to the shopper. The display means causes the display unit to display at least the product name and the sales price of the product data-processed by the device that processes the sales data of the product purchased by the shopper along with the total price of all the products purchased by the shopper. The non-display means selectively hides at least the product name, the sales price, and the total amount of information displayed on the display unit according to the operation input of the shopper.

1 is an external view of a POS terminal according to an embodiment. The block diagram which shows the control circuit structure of the POS terminal. The schematic diagram which shows the function which a display apparatus controller has. The figure which shows an example of the screen displayed on a display for customers. The figure which shows the example of a screen after hiding the information of a goods name column from the example of a screen of FIG. The figure which shows the example of a screen after touch-inputting the button image of "Erase all" from the example of a screen of FIG. The schematic diagram which shows the main memory areas formed in RAM of a POS terminal. The flowchart which shows the procedure of the one customer process which CPU of a POS terminal performs. The flowchart which shows the procedure of the customer surface display process which a display apparatus controller performs. The flowchart which shows the procedure of the customer surface display switching process which a display apparatus controller performs. The flowchart which shows the procedure of the total display forced process which a display apparatus controller performs.

  Hereinafter, embodiments of a customer display device will be described with reference to the drawings. This embodiment exemplifies a customer display device mounted on a POS terminal.

  FIG. 1 is an external perspective view of a POS terminal 1 according to the present embodiment. The POS terminal 1 has a keyboard 2 and an operator display 3 on the front side, and a customer display 4 as a display unit on the back side. The keyboard 2 is provided with various function keys such as a subtotal key, a deposit / cash total key, and a clear key in addition to numeric keys for inputting numerical values of [0] to [9]. The operator display 3 functions as a display unit that provides information to a cashier who is an operator of the POS terminal 1, and the customer display 4 functions as a display unit that provides information to a shopper. Each display 3, 4 provides the cashier or shopper with information such as the product name, price, and number of items purchased by the shopper, and the total price of all items purchased by the shopper.

  The POS terminal 1 is connected to the scanner 6 via the communication cable 5. The scanner 6 optically reads a barcode, and each product is provided with a barcode obtained by converting a product identification code for individually identifying the product into a barcode.

  The POS terminal 1 includes a printer 7 for printing a receipt, and issues a receipt printed by the printer 7 from a receipt issuing port 8. The POS terminal 1 having such a configuration is placed on a drawer 9 for storing cash or the like.

  FIG. 2 is a block diagram showing a control circuit configuration of the POS terminal 1. The POS terminal 1 includes a CPU (Central Processing Unit) 11 as a control unit main body. The CPU 11 is connected to a main storage unit of a ROM (Read Only Memory) 13 and a RAM (Random Access Memory) 14 via a bus line 12 such as an address bus and a data bus, an HDD (Hard Disk Drive) device or an SSD (Solid). The auxiliary storage unit 15 such as a state drive device is connected to the communication interface 16. A POS server (not shown) is connected to the communication interface 16 through a network such as a LAN (Local Area Network).

  The bus line 12 is connected to a scanner interface 17, an I / O (Input / Output) port 18, a keyboard controller 19, a display controller 20, a printer controller 21, and a display device controller 22. The scanner interface 17 manages data communication with the scanner 6. The I / O port 18 outputs a drive signal to the drawer 9. The drawer 9 that has received this drive signal automatically opens.

  The keyboard controller 19 controls the keyboard 2 and takes in a key signal corresponding to the operated key. The display controller 20 controls the screen display of the operator display 3. The printer controller 21 controls the receipt printing operation by the printer 7.

  The display device controller 22 controls the customer display 4. The customer display 4 has a touch input function in which a touch panel 4b is placed on a screen of a display panel 4a such as a liquid crystal panel. The display device controller 22 controls the screen display of the display panel 4a. Further, the display device controller 22 acquires the position coordinates on the screen where the touch operation is performed by an input signal from the touch panel 4b.

  Further, as shown in FIG. 3, the display device controller 22 has functions as a display unit 31, a non-display unit 32, a permission unit 33, and a forcing unit 34. These functions are realized by the display device controller 22 in cooperation with the CPU 11 in accordance with a control program stored in the ROM 13 which is a program storage unit of the POS terminal 1.

  The display means 31 causes the customer display 4 to display at least the product name and the selling price of the product purchased by the shopper along with the total price of all the products purchased by the shopper. The non-display means 32 hides at least the product name, sales price, and total amount data displayed on the customer display 4 selectively or collectively according to the operation input of the shopper. The permission unit 33 is configured to display the non-display unit from the time when the first data of the product purchased by the shopper to the POS terminal 1 is input until the price payment data of the product purchased by the shopper is input. 32 allows information to be hidden. The forcing means 34 hides the total amount by the non-display means 32 when the POS terminal 1 declares the end of the data input of the product purchased by the shopper, for example, when the subtotal key of the keyboard 2 is input. If it is, the total amount is displayed on the customer display 4. Here, the customer display 4 and the display device controller 22 constitute a customer display device 30.

  An example of the screen 40 displayed on the customer display 4 by the display means 31 is shown in FIG. As shown in FIG. 4, the screen 40 of the customer display 4 is divided into a registration information display area 41 and a message area 42. The registration information display area 41 is divided into a product name column 411, a score column 412, a price column 413, and a total column 414.

  Each time sales data of a product purchased by the shopper is input via the input device of the keyboard 2 or the scanner 6, the product name, the number of sales, and the sales price of the product are displayed in the respective columns 411, 412 and 413. Is done. In the total column 414, the total score and the total amount of all products purchased by the shopper are displayed. In the message area 42, a message for guiding the operation method to the shopper, for example, “Touch the item you want to turn off for privacy protection. To delete all items, touch the delete all button. Please ”and a button image 421 of“ Erase all ”is displayed.

  When the user touches the inside of the product name field 411 on the screen 40 in FIG. 4, the product name is hidden by the non-display unit 32 in the customer display device 30. An example of the screen 50 at this time is shown in FIG. As shown in FIG. 5, in the customer display device 30, the mask image is superimposed on the product name column 411 and apparently the product name is not displayed. At this time, in the message area 42, a message for guiding an operation method for redisplay, for example, “Product name is erased. If touched again, the product name is displayed” is displayed.

  Here, as shown in the message, when the user touches the inside of the product name field 411 again on the screen 50 in FIG. 5, the customer display device 30 deletes the mask image from the product name field 411 and the product. The name is displayed again, and the screen returns to the screen 40 of FIG.

  The same applies when the other score column 412, the price column 413, and the total column 414 are touched. In other words, the customer display device 30 displays a mask image superimposed on the touch-operated area of the screen, and apparently displays the information displayed in the touch-operated area, that is, the number of sales, Price or total information (total score and total amount) is hidden. In addition, information is re-displayed in the area by the touch operation again.

  In the screen 40 of FIG. 4, when the user performs a touch operation on the “All delete” button image 421, the customer display device 30 uses the non-display means 32 to display the product name, the number of sales points, the sales price, and the total in the registration information display area 41. Information is hidden all at once. A screen 60 at this time is shown in FIG. As shown in FIG. 6, in the customer display device 30, a mask image is displayed in an overlapped manner in each area of the product name column 411, the score column 412, the price column 413, and the total column 414. The sales score, sales price, and total information are hidden at once. At this time, in the message area 42, a message for guiding the operation method for redisplay, for example, “All items are being erased. Touch the all display button to display” is displayed. Also, the “delete all” button image 421 is changed to a “display all” button image 422.

  Here, as shown in the message, when the user touches the “display all” button image 422 on the screen 60 in FIG. 6, the mask display image is erased from the screen 60 in the customer display device 30, and FIG. Return to the screen 40 of FIG.

  In order to realize the display control as described above for the customer display device 30, the POS terminal 1 forms the registration memory 51 and the flag memory 52 having the area structure shown in FIG. The registration memory 51 has a memory area for storing product names, sales points, and sales prices of products purchased by the shopper, and total information of the total points and total amount. The flag memory 52 has a memory area for storing a product name deletion flag F1, a point deletion flag F2, a price deletion flag F3, a total deletion flag F4, and a total deletion flag F5. The product name erasure flag F1 is set to “1” when the product name is not displayed from the screen 40 displayed on the customer display 4. The same applies to the point erasure flag F2, the price erasure flag F3, and the total erasure flag F4, and is set to “1” when in the mode in which the corresponding item information is not displayed. The all erasure flag F5 is set to “1” when the “all display” button image 422 is touched and is in a mode in which information of all items is not displayed.

  FIG. 8 is a flowchart showing a procedure of one-customer processing executed by the CPU 11 of the POS terminal 1 according to the control program. Single customer processing is information processing from the start of registration of a product purchased by one shopper until payment for the shopper ends.

  CPU11 waits for the goods which a shopper purchases to be registered (step ST1). When the barcode attached to the product is scanned by the scanner 6 or the product identification code is keyed by the keyboard 2, the CPU 11 determines that the product is registered.

  When the product registration is performed (YES in step ST1), the CPU 11 checks the registration flag F0 (step ST2). The registering flag F0 is stored in the RAM 14, for example. When the registration flag F0 is reset to “0” (YES in step ST2), the registered product is the first item purchased by one shopper. The CPU 11 clears each area of the registration memory 51 (step ST3). Further, the CPU 11 resets the flags F1 to F5 of the flag memory 52 to “0” (step ST4). Further, the CPU 11 sets the registering flag F0 to “1”.

  Thereafter, the CPU 11 instructs the display device controller 22 to validate the touch input (step ST6). Receiving this command, the display device controller 22 starts monitoring the signal from the touch panel 4b (allowing means 33).

  After instructing the validation of the touch input or when the registering flag F0 is set to “1” in step ST2 (NO in step ST2), the CPU 11 executes a process for registering merchandise sales data ( Step ST7). That is, the CPU 11 searches the product data file stored in the auxiliary storage unit 15 with the product identification code of the product registered in step ST1, and calls the product name and unit price recorded in association with the product identification code. . Then, the CPU 11 calculates the selling price by multiplying the unit price by the number of sales points (the numerical value when the numeric key is entered immediately before registration of the product, the value when the numeric key is entered, and “1” when the numeric value is not entered). To do. The CPU 11 registers the merchandise sales data including the merchandise identification code, the merchandise name, the unit price, the sales point, and the sales price in the transaction memory. The transaction memory is formed in the RAM 14, and is initialized prior to the start of registration of products purchased by the shopper.

  When the merchandise sales data registration process is completed, the CPU 11 overwrites and saves the merchandise name, sales points, and sales price of the merchandise sales data in the corresponding item area of the registration memory 51 (step ST8). Further, the CPU 11 adds the sales point to the total score area of the registration memory 51 and the sales price to the total amount area (step ST9). Then, the CPU 11 displays the contents of the registration memory 51 on the operator display 3 (step ST10).

  Thereafter, the CPU 11 instructs the display device controller 22 to execute the customer surface display process (step ST11). Receiving this command, the display device controller 22 executes processing according to the procedure shown in the flowchart of FIG. First, the display device controller 22 checks the product name deletion flag F1 in the flag memory 52 (step ST31). If the product name deletion flag F1 is reset to “0” (YES in step ST31), the display device controller 22 displays the product name field 411 in the registration information display area 41 on the screen of the customer display 4. The product name information stored in the product name area of the registration memory 51 is displayed (step ST32: display means 31). When product name deletion flag F1 is set to “1” (NO in step ST31), display device controller 22 does not execute the process of step ST32.

  Next, the display device controller 22 checks the point deletion flag F2 in the flag memory 52 (step ST33). If the score deletion flag F2 has been reset to “0” (YES in step ST33), the display controller 22 displays the score area of the registration memory 51 in the score column 412 in the registration information display area 41. Is displayed (step ST34: display means 31). If the score deletion flag F2 is set to “1” (NO in step ST33), the display device controller 22 does not execute the process of step ST34.

  Next, the display device controller 22 checks the price erasure flag F3 in the flag memory 52 (step ST35). If the price erasure flag F3 has been reset to “0” (YES in step ST35), the display controller 22 displays the price area of the registration memory 51 in the price column 413 in the registration information display area 41. Is displayed (step ST36: display means 31). If price erasure flag F3 is set to “1” (NO in step ST35), display device controller 22 does not execute the process of step ST36.

  Finally, the display device controller 22 checks the total erase flag F4 in the flag memory 52 (step ST37). If the total erase flag F4 has been reset to “0” (YES in step ST37), the display device controller 22 displays the total score area of the registration memory 51 in the total column 414 in the registration information display area 41. The total information stored in the total amount area, that is, the total score and the total amount are displayed (step ST38: display means 31). If total erase flag F4 is set to “1” (NO in step ST37), display device controller 22 does not execute the process of step ST38.

  After instructing execution of the customer surface display process, the CPU 11 touches the screen of the customer display 4 (step ST12), declares the end of product registration (step ST14), or performs the next product registration. It waits for it (step ST1). When the next product registration is performed via the scanner 6 or the keyboard 2 (YES in step ST1), since the registration flag F0 is already set to “1”, the CPU 11 performs step ST7 and subsequent steps. Run the process again.

  If it is detected that the screen of the customer display 4 has been touched before the next product registration is performed (YES in step ST12), the CPU 11 executes customer surface display switching processing on the display device controller 22. Is commanded (step ST13). Receiving this command, the display device controller 22 executes processing according to the procedure shown in the flowchart of FIG. First, the display device controller 22 detects a touch input position on the screen based on a signal from the touch panel 4b (step ST41).

  If the touch input position can be detected, the display device controller 22 checks whether or not the touch input position is in any item column of the registration information display area 41 (step ST42). When the touch input position is in the item column (YES in step ST42), the display device controller 22 checks the erase flag Fi (i = 1 to 4) corresponding to the item column input by touch. That is, if the touch input position is in the product name column 411, the product name deletion flag F1 is set. If the touch input position is in the score column 412, the point deletion flag F2 is set. In the price column 413, the price deletion flag F3 is set. If it is in the total column 414, the total erase flag F4 is checked (step ST43).

  When the checked erasure flag Fi is “0” (YES in step ST43), the display device controller 22 displays the mask image over the entire area of the item field corresponding to the erasure flag F1 and displays the display information ( (Product name, number of sales points, sales price or total information) is not displayed (step ST44: non-display means 32). Further, the display device controller 22 sets the checked erase flag Fi to “1” (step ST45).

When the checked erase flag Fi is “1” (NO in step ST43), the display device controller 22 erases the mask image from the item field corresponding to the erase flag F1, and displays the display information (product in the item field). Name, sales number, sales price or total information) is displayed again (step ST46). Further, the display device controller 22 resets the corresponding erasure flag Fi to “0” (step ST47).
This completes the customer surface display switching process when the item field is touched.

  On the other hand, when the touch input position is not the item field (NO in step ST42) and is the region of the button image 421 or 422 (YES in step ST48), the display device controller 22 displays the all erase flag F5. Is checked (step ST49). When all deletion flag F5 is “0” (YES in step ST49), display device controller 22 displays a mask image on all item columns 411 to 414 in registration information display area 41 to display information in the item column. (Product name, number of sales points, sales price and total information) are not displayed (step ST50: non-display means 32). Further, the display device controller 22 changes the button image 421 of “ALL ERASE” to the button image 422 of “ALL DISPLAY” (step ST51). Further, the display device controller 22 collectively sets all the erase flags F1 to F5 in the flag memory 52 to “1”. (Step ST52).

When all deletion flag F5 is “1” (NO in step ST49), display device controller 22 deletes the mask image from all item columns 411 to 414 in registration information display area 41, and stores in the item column. The display information (product name, sales number, sales price, and total information) is displayed again (step ST53). Further, the display device controller 22 changes the button image from the “all display” button image 422 to the “all delete” button image 421 (step ST54). Further, the display device controller 22 collectively resets the erase flags F1 to F5 in the flag memory 52 to “0”. (Step ST55).
This completes the customer surface display switching process when the button image 421 or 422 is touched. When the touch input position is not the item field (NO in step ST42) and is not the area of the button image 421 or 422 (NO in step ST48), the display device controller 22 does not perform any processing. .

  After the execution of the customer surface display process is instructed, for example, when the product registration end is declared by the subtotal key input of the keyboard 2 (YES in step ST14), the CPU 11 performs the total display compulsory process to the display device controller 22. Execution is commanded (step ST15). Receiving this command, the display device controller 22 executes processing according to the procedure shown in the flowchart of FIG. First, the display device controller 22 checks the total erase flag F4 in the flag memory 52 (step ST61). When the total erasure flag F4 is reset to “0”, the total information of the total score and the total amount is displayed in the total column 414 in the registration information display area 41 on the screen of the customer display 4. In this case (NO in step ST61), display device controller 22 performs no processing.

  When the total erasure flag F4 is set to “1”, the mask image is displayed in the total column 414, and the information in the total column 414, that is, the total score and the total amount are not displayed. ing. In this case (YES in step ST15), the display controller 22 deletes the mask image from the total column 414, and causes the total column 414 to redisplay the total score and total amount information (step ST62: forcing unit 34). ). Further, the display device controller 22 resets the total erasure flag F4 to “0” (step ST63).

  After instructing the execution of the total display forcing process, the CPU 11 waits for the deposit amount to be input (step ST16). When the deposit amount which is the payment data of the shopper is input by operating the numeric key and deposit / actual total key of the keyboard 2 (YES in step ST16), the CPU 11 touches the display device controller 22. Command invalidation of input (step ST17). Upon receiving this command, the display device controller 22 stops signal monitoring from the touch panel 4b (allowing means 33).

After instructing the invalidation of the touch input, the CPU 11 executes a registration closing process (step ST18). This processing includes processing for obtaining the change amount by subtracting the total amount from the deposit amount and displaying the change amount on the operator display 3 and the customer display 4. Further, it includes processing for editing the print data of the receipt based on the merchandise sales data registered in the transaction memory, and operating the printer 7 to issue the receipt.
After completing the registration closing process, the CPU 11 resets the registration flag F0 to “0”. This is the end of the one customer process.

  When the POS terminal 1 of the present embodiment is adopted in a retail store accounting apparatus, the store side installs the POS terminal 1 so that the cashier stands on the front side and the shopper stands on the back side across the POS terminal 1. To do. Then, the cashier operates the scanner 6 or the keyboard 2 to register the sales data of the products purchased by the shopper in the POS terminal 1 one by one.

  Each time the product sales data is registered, the POS terminal 1 displays the product name, the number of sales points, the sales price, etc. of the registered product on the operator display 3 and the customer display 4. Therefore, the cashier and the shopper can double check the correctness of the registered product. However, the display content of the customer display 4 can be seen not only by the shopper himself but also by other nearby shoppers. For this reason, a shopper who does not want others to know the product he / she purchases touches, for example, the product name field 411 of the screen 40 displayed on the customer display 4. Then, the product name of the registered product is not displayed in the product name column 411 thereafter. Therefore, other people do not know the product name of the product that they purchase.

  Similarly, if the sales price is not desired to be known to others, the price field 413 on the screen 40 is touched. If the total amount is not desired to be known to others, the total column 414 of the screen 40 is touched. By doing so, even if the product purchased by the shopper is registered in the POS terminal 1, the sales price and the total amount of the product are not displayed on the customer display 4, so that the privacy of the shopper can be protected.

  For example, although the product name is temporarily hidden, the shopper touches the product name column 411 again in order to cancel the hidden state. Then, after that, the product name of the registered product is displayed in the product name column 411.

  As described above, according to the POS terminal 1 including the customer display device 30 of the present embodiment, for each item of the product name, the number of sales points, the sales price, and the total information of the registered products displayed on the customer display 4, By a simple touch operation by the shopper himself / herself, the information on the item desired by the shopper can be hidden or the information on the item can be displayed again.

  In the present embodiment, a “delete all” button image 421 is displayed on the screen of the customer display 4. When the button image 421 is touch-operated by the shopper, the information of all items of the registered product displayed on the customer display 4 such as the product name, the number of sales points, the sales price, and the total information is hidden all at once. . Therefore, since the shopper who does not display the information on all items can hide the information on all items without touching the items 411 to 414, the operability is good.

  Further, in the present embodiment, the display device after the first data of the product purchased by the shopper is input at the POS terminal 1 until the payment data for the product purchased by the shopper is input. The controller 22 monitors a signal from the touch panel 4b. In other words, the display device controller 22 ignores the signal from the touch panel 4b except for the above period. Therefore, for example, a customer who has finished paying the price accidentally touches the product name column of the customer display 4, so that the product name is hidden from the customer display 4 even though the next customer does not intend. Such inconvenience can be prevented in advance.

  Further, in the present embodiment, when the data input end of the product purchased by the shopper is declared at the POS terminal 1, if the total amount is not displayed, the total amount is forcibly displayed. I have to. Therefore, since the total amount is not displayed, there is no problem that the shopper cannot know the total amount.

The present invention is not limited to the above embodiment.
For example, in the above-described embodiment, the non-display unit 32 displays the mask image over the entire touch-operated area and apparently hides the information displayed in the area. The method of hiding the displayed information is not limited to this, and the information may be hidden by deleting the information from the touch-operated area.

  In the embodiment, the registration memory 51 and the flag memory 52 are formed in the RAM 14. However, the formation destination of these memory areas is not limited to the RAM 14. For example, the display device controller 22 may be formed in a memory.

  In the embodiment, the function of the display device controller 22 is realized in cooperation with the CPU 11 by the display device controller 22 in accordance with the control program stored in the ROM 13 which is the program storage unit of the POS terminal 1. May be realized alone. Further, the information processing procedure is not limited to the procedure shown by the flowcharts of FIGS. For example, in FIG. 8, the order of steps ST3 to ST6 may be different. Further, the process of step ST10 and the process of ST11 may be interchanged.

  In FIG. 9, the order of checking the flags F1 to F4 is not limited to this. For example, the score deletion flag F2 may be checked first, followed by the product name deletion flag F1. Alternatively, the total erasure flag F4 may be checked first.

  In FIG. 10, the order of determining whether the touch input position is an item field or a button image is not limited to this. First, the processes of steps ST48 to ST55 may be performed, and then the processes of steps ST42 to ST47 may be performed.

  In addition, for example, in FIG. 11, the order of step ST62 and step ST63 may be switched.

  In the above embodiment, the customer display device mounted on the POS terminal is exemplified. However, the present invention is applied to a device other than the POS terminal, for example, a customer display device mounted on an electronic cash register or an electronic fee scale. The same applies to the case.

  In the embodiment, a control program for realizing the functions of the invention is recorded in advance in a ROM that is a program storage unit in the apparatus. However, the present invention is not limited to this, and a similar program may be downloaded from the network to the apparatus. Alternatively, a similar program recorded on the recording medium may be installed in the apparatus. The recording medium may be in any form as long as it can store a program such as a CD-ROM or a memory card and can be read by the apparatus. Further, the function obtained by installing or downloading the program may be realized in cooperation with an OS (operating system) in the apparatus. Moreover, the program of this embodiment may be incorporated in a portable information terminal such as a mobile phone having a communication function or a so-called PDA to realize the function.

  In addition, although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... POS terminal, 2 ... Keyboard, 3 ... Display for operator, 4 ... Display for customer, 4a ... Display panel, 4b ... Touch panel, 22 ... Display device controller, 31 ... Display means, 32 ... Non-display means, 33 ... Permitted Means 34 ... Forced means.

Claims (6)

A display for providing information to the shopper;
Display means for causing the display unit to display at least the product name and the sales price of the product data processed by the device that processes the sales data of the product purchased by the shopper along with the total amount of all the products purchased by the shopper;
Non-display means for selectively hiding each information of at least the product name, the sales price, and the total amount displayed on the display unit according to the operation input of the shopper,
A display device for customers, comprising: The display unit has a touch input function,
The customer display device according to claim 1, wherein the non-display means hides information displayed at a touch input position among pieces of information displayed on the display unit.   3. The non-display unit includes a unit that collectively hides each information displayed on the display unit when the touch input position is a position designating all erasure. Customer display device. It is possible to hide the information by the non-display means from the time when the first data of the product purchased by the shopper is input to the device until the price payment data of the product purchased by the shopper is input. Acceptable means to
The customer display device according to claim 1, further comprising: When the data input end of the product purchased by the shopper is declared on the device, if the total amount is not displayed by the non-display unit, forcing unit to display the total amount on the display unit,
The customer display device according to claim 1, further comprising: A computer with a display that provides information to shoppers,
A function of causing the display unit to display at least the product name and the sales price of the product data processed by the device that processes the sales data of the product purchased by the shopper along with the total amount of all the products purchased by the shopper;
A function of selectively hiding each information of at least a product name, a selling price, and a total amount displayed on the display unit according to an operation input of the shopper;
Control program to realize.

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