Display device, display method, terminal device, and display system

Abstract

A display device (1) comprises: a display control unit (11) that causes a signage display (2) to display text while scrolling the text; an end determination unit (12) that determines whether the scrolling of the text by the display control unit (11) has ended; and a signal transmission unit (13) that transmits, to a terminal device (3), a signage signal indicating that the scrolling has ended, when the end determination unit (12) determines that the scrolling has ended.

Description

Display device, display method, terminal device, and display system

[0001] The present disclosure relates to a display device, a display method, a terminal device, and a display system.

[0002] Conventionally, there have been display devices that display text on a signage display while scrolling it (hereinafter referred to as "conventional display devices"). Meanwhile, Patent Literature 1 discloses a system that translates each of the utterances of multiple participants and displays each translation on a signage display.

[0003] JP 2024-25045 A

[0004] Although conventional display devices can display text on a signage display while scrolling it, they have a problem in that they do not have technology for informing the person explaining the text whether the scrolling of the text has finished. For this reason, for example, when the person explaining the text has their back to the digital signage or is far away from the digital signage, the person explaining the text may not be able to confirm whether the scrolling of the text has finished, which may result in the timing of explaining the next sentence being off. Note that even if the technology disclosed in Patent Document 1, which displays each translation on a signage display, could be applied to conventional display devices, it would not be possible to inform the person explaining the text whether the scrolling of the text has finished.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a display device that can notify the person explaining the text, etc., whether scrolling of the text has finished or not.

[0006] The display device according to the present disclosure includes a display control unit that displays text on a signage display while scrolling it, an end determination unit that determines whether the scrolling of the text by the display control unit has ended, and a signal transmission unit that transmits a signal indicating that the scrolling has ended to a terminal device when the end determination unit determines that the scrolling has ended.

[0007] According to the present disclosure, it is possible to notify the person explaining the text whether scrolling of the text has finished.

[0008] 8A is an explanatory diagram showing a state in which text is being scrolled, and FIG. 8B is an explanatory diagram showing that scrolling of the text has been completed. FIG. 8B is an explanatory diagram showing a state in which text is displayed on the display 43 of the terminal device 3. FIG. 8A is an explanatory diagram showing that text is being scrolled, and FIG. 8B is an explanatory diagram showing that scrolling of the text has been completed. FIG. 8B is an explanatory diagram showing that text is displayed on the display 43 of the terminal device 3. FIG. 8B is an explanatory diagram showing that a message indicating that scrolling has been completed is displayed. FIG. 8C is an explanatory diagram showing that the display control unit 11 is displaying text in each language on the signage display 2 while scrolling it. FIG. 8D is an explanatory diagram showing that scrolling of only the English text has been completed. FIG. 8E is an explanatory diagram showing that scrolling of text in all languages ​​has been completed. FIG. 8F is an explanatory diagram showing a state in which scrolling of only the English text has been completed. FIG. 10 is an explanatory diagram showing a display indicating that scrolling of each of an English sentence, a Tagalog sentence, and a Portuguese sentence has ended. FIG. 11 is an explanatory diagram showing a display indicating that scrolling of sentences in all languages ​​has ended. FIG. 12 is an explanatory diagram showing a display indicating that scrolling of each sentence has ended when there are multiple sentences acquired by the signal receiving unit 41. FIG. 13 is a configuration diagram showing a display system according to embodiment 3. FIG. 14 is a hardware configuration diagram showing hardware of a display device 1 according to embodiment 3. FIG. 15 is a hardware configuration diagram showing hardware of a terminal device 3 according to embodiment 3. FIG. 16 is an explanatory diagram showing a display system according to embodiment 4. FIG. 17 is a hardware configuration diagram showing hardware of a display device 1 according to embodiment 4. FIG. 18 is a hardware configuration diagram showing hardware of a terminal device 3 according to embodiment 4.10 is an explanatory diagram showing the execution rate R of scrolling by the display control unit 11 being displayed. FIG.

[0009] In order to explain the present disclosure in more detail, embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0010] Embodiment 1 Fig. 1 is a configuration diagram showing a display system according to embodiment 1. Fig. 2 is a hardware configuration diagram showing the hardware of a display device 1 according to embodiment 1. Fig. 3 is a hardware configuration diagram showing the hardware of a terminal device 3 according to embodiment 1.

[0011] The display system shown in FIG. 1 includes a display device 1, a signage display 2, and a terminal device 3. The display device 1 displays text on the signage display 2 while scrolling it. When the scrolling of the text has finished, the display device 1 transmits a signal indicating that the scrolling has finished to the terminal device 3. The signage display 2 is a display medium such as a screen for displaying the text. The terminal device 3 is a terminal used by someone who explains the text, and is realized by, for example, a smartphone or a tablet. When the terminal device 3 receives the signal indicating that the scrolling has finished from the display device 1, it indicates that the scrolling has finished.

[0012] The display device 1 includes a display control unit 11, a termination determination unit 12, and a signal transmission unit 13. The display control unit 11 is realized, for example, by a display control circuit 21 shown in Fig. 2. The display control unit 11 acquires a text to be displayed and displays the text on the signage display 2 while scrolling the text.

[0013] The end determination unit 12 is realized by, for example, the end determination circuit 22 shown in Fig. 2. The end determination unit 12 determines whether or not scrolling of text by the display control unit 11 has ended. The end determination unit 12 outputs a determination result indicating whether or not scrolling has ended to the signal transmission unit 13.

[0014] The signal transmission unit 13 is realized by, for example, the signal transmission circuit 23 shown in Fig. 2. The signal transmission unit 13 obtains a determination result indicating whether or not scrolling has ended from the end determination unit 12. When the end determination unit 12 determines that scrolling has ended, the signal transmission unit 13 transmits a signal indicating that scrolling has ended to the terminal device 3.

[0015] 1, it is assumed that each of the components of the display device 1, that is, the display control unit 11, the end determination unit 12, and the signal transmission unit 13, is realized by dedicated hardware as shown in Fig. 2. That is, it is assumed that the display device 1 is realized by a display control circuit 21, an end determination circuit 22, and a signal transmission circuit 23. Each of the display control circuit 21, the end determination circuit 22, and the signal transmission circuit 23 corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof.

[0016] The components of the display device 1 are not limited to those realized by dedicated hardware, and the display device 1 may be realized by software, firmware, or a combination of software and firmware. The software or firmware is stored as a program in the memory of a computer. The computer refers to hardware that executes a program, and includes, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, a processor, or a DSP (Digital Signal Processor).

[0017] 4 is a hardware configuration diagram of a computer when the display device 1 is realized by software, firmware, etc. When the display device 1 is realized by software, firmware, etc., a program for causing a computer to execute the respective processing procedures of the display control unit 11, the termination determination unit 12, and the signal transmission unit 13 is stored in the memory 31. Then, a processor 32 of the computer executes the program stored in the memory 31.

[0018] 2 shows an example in which each of the components of the display device 1 is realized by dedicated hardware, while Fig. 4 shows an example in which the display device 1 is realized by software, firmware, etc. However, this is merely an example, and some of the components of the display device 1 may be realized by dedicated hardware, and the remaining components may be realized by software, firmware, etc.

[0019] The terminal device 3 includes a signal receiving unit 41, an end notification unit 42, and a display 43. The signal receiving unit 41 is realized, for example, by a signal receiving circuit 51 shown in FIG. 3. The signal receiving unit 41 receives a signal indicating that scrolling has ended when scrolling of the text has ended from the signal transmitting unit 13 of the display device 1 that displays the text on the signage display 2 while scrolling it. The signal receiving unit 41 outputs the signal signal to the end notification unit 42.

[0020] The end presentation unit 42 is realized by, for example, the end presentation circuit 52 shown in FIG. 3 . The end presentation unit 42 acquires a signal from the signal receiving unit 41. When the signal receiving unit 41 receives the signal signal, the end presentation unit 42 presents that scrolling has ended. Specifically, when the signal receiving unit 41 receives the signal signal, the end presentation unit 42 notifies the person explaining the text, etc., that scrolling has ended by, for example, displaying on the display 43 that scrolling has ended, outputting audio from a speaker (not shown) that scrolling has ended, or vibrating a vibrator (not shown).

[0021] 1, it is assumed that the signal receiving unit 41, the end presentation unit 42, and the display 43, which are components of the terminal device 3, are each realized by dedicated hardware as shown in Fig. 3. That is, it is assumed that the terminal device 3 is realized by a signal receiving circuit 51, an end presentation circuit 52, and the display 43. Each of the signal receiving circuit 51 and the end presentation circuit 52 corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0022] The components of the terminal device 3 are not limited to those realized by dedicated hardware, and the terminal device 3 may be realized by software, firmware, or a combination of software and firmware. Fig. 5 is a hardware configuration diagram of a computer when the terminal device 3 is realized by software, firmware, or the like. When the terminal device 3 is realized by software, firmware, or the like, a program for causing a computer to execute the respective processing procedures of the signal receiving unit 41 and the end notification unit 42 is stored in the memory 61. Then, a processor 62 of the computer executes the program stored in the memory 61.

[0023] 3 shows an example in which each of the components of the terminal device 3 is realized by dedicated hardware, while Fig. 5 shows an example in which the terminal device 3 is realized by software, firmware, etc. However, this is merely an example, and some of the components of the terminal device 3 may be realized by dedicated hardware, and the remaining components may be realized by software, firmware, etc.

[0024] Next, the operation of the display system shown in Fig. 1 will be described. Fig. 6 is a flowchart showing a display method, which is a processing procedure of the display device 1. Fig. 7 is a flowchart showing a processing procedure of the terminal device 3.

[0025] The display control unit 11 of the display device 1 acquires the text to be displayed (step ST1 in FIG. 6 ). For ease of explanation, it is assumed here that the acquired text to be displayed is "11 In the case of production at the factory... please also check the production plan." The display control unit 11 scrolls the text to be displayed on the signage display 2 as shown in FIG. 8 (step ST2 in FIG. 6 ). FIG. 8A shows that the text is being scrolled, and FIG. 8B shows that the scrolling of the text has finished.

[0026] The end determination unit 12 monitors the text scrolling process performed by the display control unit 11 and determines whether the scrolling of the text has ended (step ST3 in FIG. 6). The process of determining whether the scrolling has ended based on the monitoring of the scrolling process is a known technique, and therefore a detailed description thereof will be omitted. The end determination unit 12 outputs a determination result indicating whether the scrolling has ended to the signal transmission unit 13.

[0027] The signal transmission unit 13 obtains a determination result indicating whether or not scrolling has ended from the end determination unit 12. When the end determination unit 12 determines that scrolling has ended (YES in step ST4 of FIG. 6 ), the signal transmission unit 13 transmits a signal indicating that scrolling has ended to the terminal device 3 (step ST5 of FIG. 6 ). If the end determination unit 12 does not determine that scrolling has ended (NO in step ST4 of FIG. 6 ), the signal transmission unit 13 waits until the end determination unit 12 determines that scrolling has ended.

[0028] The signal receiving unit 41 of the terminal device 3 acquires the text to be displayed. The acquisition of the text by the signal receiving unit 41 may be performed separately from the acquisition of the text by the display device 1, or the text may be transmitted from the display device 1. The signal receiving unit 41 outputs the text to be displayed to the end presenting unit 42. The end presenting unit 42 acquires the text to be displayed from the signal receiving unit 41. The end presenting unit 42 displays the text to be displayed on the display 43, as shown in FIG. 9. FIG. 9 is an explanatory diagram showing the text displayed on the display 43 of the terminal device 3.

[0029] When a signal signal is transmitted from the signal transmission unit 13 (step ST11 in FIG. 7 : YES), the signal reception unit 41 receives the signal signal (step ST12 in FIG. 7 ). The signal reception unit 41 outputs the signal signal to the end notification unit 42. If a signal signal is not transmitted from the signal transmission unit 13 (step ST11 in FIG. 7 : NO), the signal reception unit 41 waits until the signal signal is transmitted.

[0030] The end presentation unit 42 receives a signal from the signal receiving unit 41. Upon receiving the signal, the end presentation unit 42 notifies the presenter of the text that scrolling has ended by, for example, displaying a message indicating that scrolling has ended on the display 43 (step ST13 in FIG. 7 ), as shown in FIG. 10 . Here, the end presentation unit 42 displays a message indicating that scrolling has ended on the display 43. However, this is merely an example, and the end presentation unit 42 may also notify the presenter of the text that scrolling has ended by outputting a sound from a speaker (not shown) or by vibrating a vibrator (not shown). FIG. 10 is an explanatory diagram showing a message indicating that scrolling has ended. In FIG. 10 , when the presenter of the text touches the “next” button, the end presentation unit 42 displays the next sentence. The next sentence is acquired by the signal receiving unit 41. Furthermore, when the presenter of the text touches the “previous” button, the end presentation unit 42 displays the previous sentence. The previous sentence is acquired by the signal receiving unit 41 .

[0031] In the first embodiment described above, the display device 1 is configured to include the display control unit 11 that displays text on the signage display 2 while scrolling it, the completion determination unit 12 that determines whether the scrolling of the text by the display control unit 11 has ended, and the signal transmission unit 13 that transmits a signal indicating that the scrolling has ended to the terminal device 3 when the completion determination unit 12 determines that the scrolling has ended. Therefore, the display device 1 can notify the person who is explaining the text, etc., whether the scrolling of the text has ended.

[0032] In the first embodiment, the terminal device 3 is configured to include a signal receiving unit 41 that receives a signal indicating that scrolling has ended when scrolling of the text has ended from the display device 1 that displays the text on the signage display 2 while scrolling the text, and an end indicating unit 42 that indicates that scrolling has ended when the signal signal is received by the signal receiving unit 41. Therefore, the terminal device 3 can enable a person who is explaining the text, etc., to confirm whether scrolling of the text has ended.

[0033] Second Embodiment In a second embodiment, a display device 1 will be described in which texts are in a plurality of languages ​​and the display control unit 11 displays the texts in the respective languages ​​on the signage display 2 while scrolling them.

[0034] The configuration of the display device 1 according to the second embodiment is the same as the configuration of the display device 1 according to the first embodiment, and the configuration diagram showing the display device 1 according to the second embodiment is shown in Fig. 1. The configuration of the terminal device 3 according to the second embodiment is the same as the configuration of the terminal device 3 according to the first embodiment, and the configuration diagram showing the terminal device 3 according to the second embodiment is shown in Fig. 1.

[0035] Next, the operation of the display system according to the second embodiment will be described. When there are sentences in multiple languages, the display control unit 11 acquires the sentences in each language. For the sake of convenience, it is assumed here that the display control unit 11 acquires English sentences, Tagalog sentences, and Portuguese sentences.

[0036] As shown in Fig. 11 , the display control unit 11 scrolls the text in each language and displays it on the signage display 2. Fig. 11 is an explanatory diagram showing that the display control unit 11 scrolls the text in each language and displays it on the signage display 2. Fig. 12 is an explanatory diagram showing that scrolling of only the text in English has finished. Fig. 13 is an explanatory diagram showing that scrolling of the text in all languages ​​has finished.

[0037] The end determination unit 12 monitors the scrolling process of the text in each language by the display control unit 11, and determines whether the scrolling of the text in each language has ended. The end determination unit 12 outputs a determination result indicating whether the scrolling of the text in each language has ended to the signal transmission unit 13.

[0038] The signal transmission unit 13 obtains a determination result indicating whether scrolling of the sentences in each language has ended from the end determination unit 12. When the end determination unit 12 determines that scrolling of the sentences in each language has ended, the signal transmission unit 13 transmits a signal indicating that scrolling of the sentences in each language has ended to the terminal device 3. Furthermore, when the end determination unit 12 determines that scrolling of the sentences in all languages ​​has ended, the signal transmission unit 13 transmits a signal indicating that scrolling of the sentences in all languages ​​has ended to the terminal device 3.

[0039] The signal receiving unit 41 acquires a Japanese sentence as an original document corresponding to the sentence in each language. The acquisition of the sentence by the signal receiving unit 41 may be performed separately from the acquisition of the sentence by the display device 1, or the sentence may be transmitted from the display device 1. Here, the signal receiving unit 41 acquires a Japanese sentence. However, this is merely an example, and the signal receiving unit 41 may acquire sentences in each language. The signal receiving unit 41, for example, outputs the Japanese sentence to the end notification unit 42. The end notification unit 42 acquires the Japanese sentence from the signal receiving unit 41. The end notification unit 42 displays the Japanese sentence on the display 43, as shown in FIG. 14. FIG. 14 is an explanatory diagram showing a Japanese sentence displayed on the display 43 of the terminal device 3. In FIG. 14, the display 43 has not yet displayed a message indicating that the scrolling of the sentence in each language has ended. In FIG. 14, a sentence with a check mark in a circle indicates that scrolling has not ended.

[0040] When a signal signal indicating that scrolling of a sentence in each language has ended is transmitted from the signal transmission unit 13, the signal reception unit 41 receives the respective signal signal. The signal reception unit 41 outputs the respective signal signal to the end notification unit 42. If the respective signal signal is not transmitted from the signal transmission unit 13, the signal reception unit 41 waits until the respective signal signal is transmitted.

[0041] The end presentation unit 42 receives each signal signal from the signal receiving unit 41. When the end presentation unit 42 receives each signal signal, the end presentation unit 42 notifies the presenter of the text that scrolling has ended by displaying a message on the display 43 indicating that scrolling has ended, as shown in FIG. 15 or FIG. 16 . FIG. 15 is an explanatory diagram showing a message indicating that scrolling has ended for only the English text. FIG. 16 is an explanatory diagram showing a message indicating that scrolling has ended for each of the English text, the Tagalog text, and the Portuguese text. In FIGS. 15 and 16 , a checked mark in a ● indicates that scrolling has ended, and a checked mark in a ○ indicates that scrolling has not ended. Here, the end presentation unit 42 displays a message indicating that scrolling has ended on the display 43. However, this is merely an example, and the end presentation unit 42 may also notify the presenter of the text that scrolling has ended by outputting a sound from a speaker (not shown) or by vibrating a vibrator (not shown).

[0042] When the signal signal indicating that scrolling of the sentences in all languages ​​has ended is transmitted from the signal transmission unit 13, the signal reception unit 41 receives the signal signal indicating that scrolling of the sentences in all languages ​​has ended. The signal reception unit 41 outputs the signal signal indicating that scrolling of the sentences in all languages ​​has ended to the end notification unit 42.

[0043] The end presentation unit 42 receives a signal from the signal receiving unit 41 indicating that the scrolling of the sentences in all languages ​​has ended. Upon receiving the signal signal, the end presentation unit 42 notifies the presenter of the sentences, etc., that the scrolling of the sentences in all languages ​​has ended by displaying on the display 43, for example, as shown in FIG. 17 . FIG. 17 is an explanatory diagram showing a display indicating that the scrolling of the sentences in all languages ​​has ended. When there are multiple sentences acquired by the signal receiving unit 41, the end presentation unit 42 may notify the presenter of the sentences, etc., that the scrolling of each sentence has ended by displaying on the display 43, as shown in FIG. 18 . FIG. 18 is an explanatory diagram showing a display indicating that the scrolling of each sentence has ended when there are multiple sentences acquired by the signal receiving unit 41. In FIG. 18 , a sentence with a check mark indicates that the scrolling has ended, and a sentence with a check mark indicates that the sentence is displayed on the signage display 2 but the scrolling has not ended, or that the sentence has not yet been displayed.

[0044] In the second embodiment described above, the display device 1 is configured so that the text is in a plurality of languages, the display control unit 11 displays the text in each language on the signage display 2 while scrolling the text, the completion determination unit 12 determines whether the display control unit 11 has finished scrolling the text in each language, and the signal transmission unit 13 transmits a signal indicating that the scrolling of the text in each language has finished to the terminal device 3 when the completion determination unit 12 determines that the scrolling of the text in each language has finished. Therefore, even when there is text in a plurality of languages, the display device 1 can notify the person explaining the text, etc., whether the scrolling of the text in each language has finished.

[0045] In the second embodiment, the terminal device 3 is configured so that the texts are in a plurality of languages, the signal receiving unit 41 receives a signal signal indicating that the scrolling of the text in each language has ended from the display device 1 when the scrolling of the text in each language has ended, and the end presenting unit 42 presents an indication that the scrolling of the text in each language has ended when the signal receiving unit 41 receives the signal signal indicating that the scrolling of the text in each language has ended. Therefore, even when there are texts in a plurality of languages, the terminal device 3 can enable an explainer of the text, etc., to confirm whether the scrolling of the text in each language has ended.

[0046] Embodiment 3 In embodiment 3, a display device 1 will be described that includes a time calculation unit 14 that calculates the time required for the scrolling of text to finish based on the amount of text, the number of characters per line, and the speed at which the text is scrolled by the display control unit 11.

[0047] Fig. 19 is a configuration diagram showing a display system according to embodiment 3. In Fig. 19, the same reference numerals as in Fig. 1 indicate the same or equivalent parts, and detailed description thereof will be omitted. Fig. 20 is a hardware configuration diagram showing the hardware of a display device 1 according to embodiment 3. In Fig. 20, the same reference numerals as in Fig. 2 indicate the same or equivalent parts, and detailed description thereof will be omitted. Fig. 21 is a hardware configuration diagram showing the hardware of a terminal device 3 according to embodiment 3. In Fig. 21, the same reference numerals as in Fig. 3 indicate the same or equivalent parts, and detailed description thereof will be omitted.

[0048] The time calculation unit 14 is realized by, for example, a time calculation circuit 24 shown in Fig. 20. The time calculation unit 14 calculates the time required for the text to finish scrolling based on the text length, the number of characters per line, and the text scrolling speed by the display control unit 11. The time calculation unit 14 outputs time information indicating the time required for the text to finish scrolling to the signal transmission unit 15.

[0049] The signal transmission unit 15 is realized by, for example, a signal transmission circuit 25 shown in Fig. 20. The signal transmission unit 15 acquires a determination result indicating whether or not scrolling has ended from the end determination unit 12, and acquires time information from the time calculation unit 14. When the end determination unit 12 determines that scrolling has ended, the signal transmission unit 15 transmits a signal indicating that scrolling has ended to the terminal device 3, and also transmits time information to the terminal device 3.

[0050] 19, it is assumed that each of the components of the display device 1, that is, the display control unit 11, the end determination unit 12, the time calculation unit 14, and the signal transmission unit 15, is realized by dedicated hardware as shown in Fig. 20. That is, it is assumed that the display device 1 is realized by a display control circuit 21, an end determination circuit 22, a time calculation circuit 24, and a signal transmission circuit 25. Each of the display control circuit 21, the end determination circuit 22, the time calculation circuit 24, and the signal transmission circuit 25 corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0051] The components of the display device 1 are not limited to those realized by dedicated hardware, and the display device 1 may be realized by software, firmware, or a combination of software and firmware. When the display device 1 is realized by software, firmware, or the like, a program for causing a computer to execute the respective processing procedures of the display control unit 11, the end determination unit 12, the time calculation unit 14, and the signal transmission unit 15 is stored in a memory 31 shown in Fig. 3. Then, a processor 32 shown in Fig. 3 executes the program stored in the memory 31.

[0052] 20 shows an example in which each of the components of the display device 1 is realized by dedicated hardware, while Fig. 3 shows an example in which the display device 1 is realized by software, firmware, etc. However, this is merely an example, and some of the components of the display device 1 may be realized by dedicated hardware, and the remaining components may be realized by software, firmware, etc.

[0053] The terminal device 3 includes a signal receiving unit 44, an end presenting unit 45, and a display 43. The signal receiving unit 44 is realized, for example, by a signal receiving circuit 54 shown in FIG. 21 . The signal receiving unit 44 receives a signal indicating that scrolling has ended when scrolling of the text has ended from the signal transmitting unit 15 of the display device 1 that displays the text on the signage display 2 while scrolling the text. The signal receiving unit 44 receives time information indicating the time required for scrolling of the text to end from the signal transmitting unit 15. The signal receiving unit 41 outputs the signal signal to the end presenting unit 45, and also outputs time information to the end presenting unit 45.

[0054] The end presentation unit 45 is realized by, for example, an end presentation circuit 55 shown in Fig. 21 . The end presentation unit 45 acquires a signal from the signal receiving unit 44. When the signal receiving unit 44 receives the signal, the end presentation unit 45 presents that scrolling has ended. The end presentation unit 45 acquires time information from the signal receiving unit 44. The end presentation unit 45 presents the time indicated by the time information.

[0055] 19 assumes that the signal receiving unit 44, the end presentation unit 45, and the display 43, which are components of the terminal device 3, are each realized by dedicated hardware such as that shown in Fig. 21. That is, it is assumed that the terminal device 3 is realized by a signal receiving circuit 54, an end presentation circuit 55, and the display 43. Each of the signal receiving circuit 54 and the end presentation circuit 55 corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0056] The components of the terminal device 3 are not limited to those realized by dedicated hardware, and the terminal device 3 may be realized by software, firmware, or a combination of software and firmware. When the terminal device 3 is realized by software, firmware, or the like, a program for causing a computer to execute the respective processing procedures of the signal receiving unit 44 and the end notification unit 45 is stored in a memory 61 shown in Fig. 5. Then, a processor 62 shown in Fig. 5 executes the program stored in the memory 61.

[0057] 21 shows an example in which each of the components of the terminal device 3 is realized by dedicated hardware, while Fig. 5 shows an example in which the terminal device 3 is realized by software, firmware, etc. However, this is merely an example, and some of the components of the terminal device 3 may be realized by dedicated hardware, and the remaining components may be realized by software, firmware, etc.

[0058] Next, the operation of the display system shown in FIG. 19 will be described. The time calculation unit 14 calculates the time T required for the text to finish scrolling based on the text volume, the number of characters per line, and the text scrolling speed by the display control unit 11. The calculation process of time T based on the text volume, the number of characters per line, and the scrolling speed is a well-known technique, so a detailed description will be omitted. Here, the time calculation unit 14 calculates time T based on the text volume, the number of characters per line, and the scrolling speed. However, this is merely an example, and the time calculation unit 14 may also calculate time T based on the text volume, the number of characters per line, the scrolling speed, the character size, and the size of the display area. The time calculation unit 14 outputs time information indicating time T to the signal transmission unit 15.

[0059] The signal transmission unit 15 obtains a determination result indicating whether or not scrolling has ended from the end determination unit 12. When the end determination unit 12 determines that scrolling has ended, the signal transmission unit 15 transmits a signal indicating that scrolling has ended to the terminal device 3. If the end determination unit 12 does not determine that scrolling has ended, the signal transmission unit 15 waits until the end determination unit 12 determines that scrolling has ended. The signal transmission unit 15 obtains time information indicating the time T required for scrolling of the text to end from the time calculation unit 14, and transmits the time information to the terminal device 3.

[0060] The signal receiving unit 44 of the terminal device 3 acquires the text to be displayed. The acquisition of the text by the signal receiving unit 44 may be performed separately from the acquisition of the text by the display device 1, or the text may be transmitted from the display device 1. The signal receiving unit 44 outputs the text to be displayed to the end presenting unit 45. The end presenting unit 45 acquires the text to be displayed from the signal receiving unit 44. The end presenting unit 45 displays the text to be displayed on the display 43.

[0061] When a signal signal is transmitted from the signal transmission unit 15, the signal receiving unit 44 receives the signal signal. The signal receiving unit 44 outputs the signal signal to the end presentation unit 45. If a signal signal is not transmitted from the signal transmission unit 15, the signal receiving unit 44 waits until a signal signal is transmitted. When time information is transmitted from the signal transmission unit 15, the signal receiving unit 44 receives the time information. The signal receiving unit 44 outputs the time information to the end presentation unit 45.

[0062] The end presentation unit 45 acquires a signal from the signal receiving unit 44. When the end presentation unit 45 acquires the signal signal, the end presentation unit 45 notifies the person explaining the text that scrolling has ended, for example, by displaying on the display 43 that scrolling has ended. The end presentation unit 45 acquires time information from the signal receiving unit 44. As shown in FIG. 22 , the end presentation unit 45 displays the time T indicated by the time information on the display 43, thereby presenting the time T required for scrolling the text to end. FIG. 22 is an explanatory diagram showing the display of the time T required for scrolling the text to end. FIG. 22 shows an example in which the time T is "16 seconds."

[0063] In the above-described third embodiment, the display device 1 is configured to include a time calculation unit 14 that calculates the time required for the scrolling of the text to finish based on the text length, the number of characters per line, and the text scrolling speed by the display control unit 11, and the signal transmission unit 15 not only transmits a signal signal to the terminal device 3 but also transmits time information indicating the time calculated by the time calculation unit 14 to the terminal device 3. Therefore, the display device 1 can notify the person who is explaining the text whether the scrolling of the text has finished, and can also notify the person who is explaining the text of the time required for the scrolling of the text to finish.

[0064] In the third embodiment, the terminal device 3 is configured so that the signal receiving unit 44 receives, from the display device 1, not only the signal signal but also time information indicating the time required for the scrolling of the text to finish, and the end presenting unit 45 notifies the user that the scrolling has finished when the signal receiving unit 44 receives the signal signal, and notifies the user of the time indicated by the time information when the signal receiving unit 44 receives the time information. Thus, the terminal device 3 can enable a person who is explaining the text to check whether the scrolling of the text has finished, and can also enable the user to check the time required for the scrolling of the text to finish.

[0065] Fourth Embodiment In a fourth embodiment, a display device 1 including a rate calculation unit 16 that calculates the rate at which scrolling is performed by the display control unit 11 based on the amount of text, the number of characters per line, and the speed at which the text is scrolled by the display control unit 11 will be described.

[0066] Fig. 23 is a configuration diagram showing a display system according to embodiment 4. In Fig. 23, the same reference numerals as in Fig. 1 indicate the same or equivalent parts, and detailed description thereof will be omitted. Fig. 24 is a hardware configuration diagram showing the hardware of a display device 1 according to embodiment 4. In Fig. 24, the same reference numerals as in Fig. 2 indicate the same or equivalent parts, and detailed description thereof will be omitted. Fig. 25 is a hardware configuration diagram showing the hardware of a terminal device 3 according to embodiment 4. In Fig. 25, the same reference numerals as in Fig. 3 indicate the same or equivalent parts, and detailed description thereof will be omitted.

[0067] The percentage calculation unit 16 is realized by, for example, a percentage calculation circuit 26 shown in FIG. 24 . The percentage calculation unit 16 calculates the percentage of scrolling performed by the display control unit 11 based on the amount of text, the number of characters per line, and the speed at which the text is scrolled by the display control unit 11. The scrolling percentage indicates the progress of scrolling; for example, if one-quarter of the scrolling has been completed, the scrolling percentage is 25%, and if half of the scrolling has been completed, the scrolling percentage is 50%. The percentage calculation unit 16 outputs percentage information indicating the scrolling percentage to the signal transmission unit 17.

[0068] The signal transmission unit 17 is realized by, for example, a signal transmission circuit 27 shown in Fig. 24. The signal transmission unit 17 acquires a determination result indicating whether or not scrolling has ended from the end determination unit 12, and acquires ratio information from the ratio calculation unit 16. When the end determination unit 12 determines that scrolling has ended, the signal transmission unit 17 transmits a signal indicating that scrolling has ended to the terminal device 3, and also transmits ratio information to the terminal device 3.

[0069] 23, it is assumed that each of the components of the display device 1, that is, the display control unit 11, the end determination unit 12, the ratio calculation unit 16, and the signal transmission unit 17, is realized by dedicated hardware as shown in Fig. 24. That is, it is assumed that the display device 1 is realized by a display control circuit 21, an end determination circuit 22, a ratio calculation circuit 26, and a signal transmission circuit 27. Each of the display control circuit 21, the end determination circuit 22, the ratio calculation circuit 26, and the signal transmission circuit 27 corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0070] The components of the display device 1 are not limited to those realized by dedicated hardware, and the display device 1 may be realized by software, firmware, or a combination of software and firmware. When the display device 1 is realized by software, firmware, or the like, a program for causing a computer to execute the respective processing procedures of the display control unit 11, the termination determination unit 12, the ratio calculation unit 16, and the signal transmission unit 17 is stored in a memory 31 shown in Fig. 3. Then, a processor 32 shown in Fig. 3 executes the program stored in the memory 31.

[0071] 24 shows an example in which each of the components of the display device 1 is realized by dedicated hardware, while Fig. 3 shows an example in which the display device 1 is realized by software, firmware, etc. However, this is merely an example, and some of the components of the display device 1 may be realized by dedicated hardware, and the remaining components may be realized by software, firmware, etc.

[0072] The terminal device 3 includes a signal receiving unit 46, an end presenting unit 47, and a display 43. The signal receiving unit 46 is realized, for example, by a signal receiving circuit 56 shown in FIG. 25 . The signal receiving unit 46 receives a signal signal indicating that scrolling has ended when scrolling of the text has ended, from the signal transmitting unit 17 of the display device 1 that displays the text on the signage display 2 while scrolling the text. The signal receiving unit 46 receives percentage information indicating the percentage of scrolling performed by the display control unit 11 from the signal transmitting unit 17. The signal receiving unit 46 outputs the signal signal to the end presenting unit 47 and also outputs the percentage information to the end presenting unit 47.

[0073] The end presentation unit 47 is realized by, for example, an end presentation circuit 57 shown in Fig. 25. The end presentation unit 47 acquires a signal from the signal receiving unit 46. When the signal receiving unit 46 receives the signal signal, the end presentation unit 47 presents that scrolling has ended. The end presentation unit 47 acquires percentage information from the signal receiving unit 46. The end presentation unit 47 presents the execution percentage of scrolling indicated by the percentage information.

[0074] 23 assumes that the signal receiving unit 46, the end presentation unit 47, and the display 43, which are components of the terminal device 3, are each realized by dedicated hardware such as that shown in Fig. 25. That is, it is assumed that the terminal device 3 is realized by a signal receiving circuit 56, an end presentation circuit 57, and the display 43. Each of the signal receiving circuit 56 and the end presentation circuit 57 corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0075] The components of the terminal device 3 are not limited to those realized by dedicated hardware, and the terminal device 3 may be realized by software, firmware, or a combination of software and firmware. When the terminal device 3 is realized by software, firmware, or the like, a program for causing a computer to execute the respective processing procedures of the signal receiving unit 46 and the end notification unit 47 is stored in a memory 61 shown in Fig. 5. Then, a processor 62 shown in Fig. 5 executes the program stored in the memory 61.

[0076] 25 shows an example in which each of the components of the terminal device 3 is realized by dedicated hardware, while Fig. 5 shows an example in which the terminal device 3 is realized by software, firmware, etc. However, this is merely an example, and some of the components of the terminal device 3 may be realized by dedicated hardware, and the remaining components may be realized by software, firmware, etc.

[0077] The display system shown in Fig. 23 is obtained by applying the ratio calculation unit 16, the signal transmission unit 17, the signal reception unit 46, and the end presentation unit 47 to the display system shown in Fig. 1. However, this is merely an example, and the ratio calculation unit 16, the signal transmission unit 17, the signal reception unit 46, and the end presentation unit 47 may also be applied to the display system shown in Fig. 19.

[0078] Next, the operation of the display system shown in FIG. 23 will be described. The percentage calculation unit 16 calculates the execution percentage R of scrolling by the display control unit 11 based on the text length, the number of characters per line, and the text scrolling speed by the display control unit 11. The process of calculating the execution percentage R based on the text length, the number of characters per line, and the scrolling speed is a well-known technique, so a detailed description will be omitted. Here, the percentage calculation unit 16 calculates the execution percentage R based on the text length, the number of characters per line, and the scrolling speed. However, this is merely an example, and the percentage calculation unit 16 may also calculate the execution percentage R based on the text length, the number of characters per line, the scrolling speed, the character size, and the size of the display area. The percentage calculation unit 16 outputs percentage information indicating the execution percentage R to the signal transmission unit 17.

[0079] The signal transmission unit 17 obtains a determination result indicating whether scrolling has ended from the end determination unit 12. When the end determination unit 12 determines that scrolling has ended, the signal transmission unit 17 transmits a signal indicating that scrolling has ended to the terminal device 3. If the end determination unit 12 does not determine that scrolling has ended, the signal transmission unit 17 waits until the end determination unit 12 determines that scrolling has ended. The signal transmission unit 17 obtains ratio information indicating the execution ratio R from the ratio calculation unit 16 and transmits the ratio information to the terminal device 3.

[0080] The signal receiving unit 46 of the terminal device 3 acquires the text to be displayed. The acquisition of the text by the signal receiving unit 46 may be performed separately from the acquisition of the text by the display device 1, or the text may be transmitted from the display device 1. The signal receiving unit 46 outputs the text to be displayed to the end presenting unit 47. The end presenting unit 47 acquires the text to be displayed from the signal receiving unit 46. The end presenting unit 47 displays the text to be displayed on the display 43.

[0081] When a signal signal is transmitted from the signal transmission unit 17, the signal receiving unit 46 receives the signal signal. The signal receiving unit 46 outputs the signal signal to the end presentation unit 47. If a signal signal is not transmitted from the signal transmission unit 17, the signal receiving unit 46 waits until a signal signal is transmitted. When ratio information is transmitted from the signal transmission unit 17, the signal receiving unit 46 receives the ratio information. The signal receiving unit 46 outputs the ratio information to the end presentation unit 47.

[0082] The end presenting unit 47 receives a signal from the signal receiving unit 46. Upon receiving the signal, the end presenting unit 47 notifies the presenter of the text that scrolling has ended, for example, by displaying on the display 43 a message indicating that scrolling has ended. The end presenting unit 47 receives percentage information from the signal receiving unit 44. As shown in FIG. 26 , the end presenting unit 47 displays the execution percentage R indicated by the percentage information on the display 43, thereby presenting the execution percentage R of scrolling performed by the display control unit 11. FIG. 26 is an explanatory diagram showing the display of the execution percentage R of scrolling performed by the display control unit 11. FIG. 26 illustrates an example in which the execution percentage R is "approximately 80%." Specifically, an example is illustrated in which approximately 80% of scrolling has ended and approximately 20% of scrolling remains.

[0083] In the above-described fourth embodiment, the display device 1 is configured to include a rate calculation unit 16 that calculates the rate at which scrolling is performed by the display control unit 11 based on the amount of text, the number of characters per line, and the text scrolling speed by the display control unit 11, and the signal transmission unit 17 not only transmits a signal signal to the terminal device 3 but also transmits rate information indicating the rate at which scrolling is performed calculated by the rate calculation unit 16 to the terminal device 3. Therefore, the display device 1 can notify the person who is explaining the text, etc., whether scrolling of the text has finished, and can also notify the person who is explaining the text, etc., of the rate at which scrolling is performed by the display control unit 11.

[0084] In the fourth embodiment, the terminal device 3 is configured so that the signal receiving unit 46 receives a signal signal from the display device 1 and also receives percentage information indicating the execution percentage of scrolling, and the end presenting unit 47 notifies the user that scrolling has ended when the signal receiving unit 46 receives the signal signal, and also presents the execution percentage indicated by the percentage information when the signal receiving unit 46 receives the percentage information. Therefore, the terminal device 3 can enable a person who is explaining a text to check whether scrolling of the text has ended, and can also enable the user to check the execution percentage of scrolling by the display control unit 11.

[0085] In addition, the present disclosure allows for free combination of the respective embodiments, modification of any of the components of the respective embodiments, or omission of any of the components of the respective embodiments.

[0086] A display device according to the present disclosure can be used for displaying, for example, a signage display.

[0087] 1 Display device, 2 Signage display, 3 Terminal device, 11 Display control unit, 12 End determination unit, 13 Signal transmission unit, 14 Time calculation unit, 15 Signal transmission unit, 16 Ratio calculation unit, 17 Signal transmission unit, 21 Display control circuit, 22 End determination circuit, 23 Signal transmission circuit, 24 Time calculation circuit, 25 Signal transmission circuit, 26 Ratio calculation circuit, 27 Signal transmission circuit, 31 Memory, 32 Processor, 41 Signal receiving unit, 42 End presentation unit, 43 Display, 44 Signal receiving unit, 45 End presentation unit, 46 Signal receiving unit, 47 End presentation unit, 51 Signal receiving circuit, 52 End presentation circuit, 54 Signal receiving circuit, 55 End presentation circuit, 56 Signal receiving circuit, 57 End presentation circuit, 61 Memory, 62 Processor.

Claims

1. A display device comprising: a display control unit that displays text on a signage display while scrolling it; an end determination unit that determines whether the scrolling of the text by the display control unit has ended; and a signal transmission unit that, when the end determination unit determines that the scrolling has ended, transmits a signal indicating that the scrolling has ended to a terminal device.

2. The display device according to claim 1, characterized in that the text includes text in multiple languages, the display control unit displays the text in each language on the signage display while scrolling it, the completion determination unit determines whether the display control unit has finished scrolling the text in each language, and the signal transmission unit, when the completion determination unit determines that the scrolling of the text in each language has finished, transmits a signal indicating that the scrolling of the text in each language has finished to the terminal device.

3. The display device according to claim 2, characterized in that the signal sending unit sends a signal indicating that scrolling of the text in all languages ​​has ended to the terminal device when the end determination unit determines that scrolling of the text in all languages ​​has ended.

4. A display device as claimed in any one of claims 1 to 3, characterized in that it comprises a time calculation unit that calculates the time required for the scrolling of the text to finish based on the amount of text in the text, the number of characters per line, and the speed at which the text is scrolled by the display control unit, and the signal transmission unit, in addition to transmitting the signal signal to the terminal device, also transmits time information indicating the time calculated by the time calculation unit to the terminal device.

5. A display device as claimed in any one of claims 1 to 4, characterized in that it comprises a ratio calculation unit that calculates the execution ratio of the scrolling by the display control unit based on the amount of text in the text, the number of characters per line, and the scrolling speed of the text by the display control unit, and the signal transmission unit, in addition to transmitting the signal signal to the terminal device, also transmits ratio information indicating the execution ratio of the scrolling calculated by the ratio calculation unit to the terminal device.

6. A display method in which a display control unit displays text on a signage display while scrolling it, an end determination unit determines whether the scrolling of the text by the display control unit has ended, and a signal transmission unit transmits a signal indicating that the scrolling has ended to a terminal device when the end determination unit determines that the scrolling has ended.

7. A terminal device comprising: a signal receiving unit that receives a signal indicating that scrolling has ended when scrolling of the text has ended from a display device that displays text on a signage display while scrolling the text; and an end indicating unit that indicates that scrolling has ended when the signal receiving unit receives the signal signal.

8. The terminal device according to claim 7, wherein the texts are in a plurality of languages, and the signal receiving unit receives from the display device, when scrolling of the text in each language has finished, a signal signal indicating that scrolling of the text in each language has finished, and the end notification unit presents, when the signal receiving unit receives the signal signal indicating that scrolling of the text in each language has finished, that scrolling of the text in each language has finished.

9. The terminal device according to claim 8, characterized in that the signal receiving unit receives a signal indicating that scrolling of the text in all languages ​​has ended when scrolling of the text in all languages ​​has ended from the display device, and the end notification unit presents a signal indicating that scrolling of the text in all languages ​​has ended when the signal receiving unit receives a signal indicating that scrolling of the text in all languages ​​has ended.

10. A terminal device as described in any one of claims 7 to 9, characterized in that the signal receiving unit receives from the display device time information indicating the time required for the scrolling of the text to finish in addition to receiving the signal signal, and the end presentation unit not only presents that scrolling has finished when the signal receiving unit receives the signal signal, but also presents the time indicated by the time information when the signal receiving unit receives the time information.

11. A terminal device as described in any one of claims 7 to 10, characterized in that the signal receiving unit receives the signal signal from the display device and also receives percentage information indicating the execution percentage of the scrolling, and the end presentation unit, when the signal receiving unit receives the signal signal, not only presents that the scrolling has ended, but also presents the execution percentage indicated by the percentage information when the signal receiving unit receives the percentage information.

12. A display system comprising: a display control unit that displays text on a signage display while scrolling it; an end determination unit that determines whether the scrolling of the text by the display control unit has ended; a signal transmission unit that transmits a signal indicating that scrolling has ended when the end determination unit determines that scrolling has ended; a signal receiving unit that receives the signal signal transmitted from the signal transmission unit; and an end notification unit that notifies the user that scrolling has ended when the signal signal is received by the signal receiving unit.

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