Management method of display device, display system, and information processing device

Abstract

A management method of a display device, a display system, and an information processing device. A user is caused to match a service desired by the user in accordance with a lending contract of a display device and a service actually provided by the display device. The management method of the display device includes: storing, by a first information processing device, at least one of first identification information and second identification information and usage mode information; transmitting, by the first information processing device, the usage mode information to a first display device via a communication network; and projecting, by the first display device, a projection image in accordance with the usage mode information.

Description

Technical Field

[0001] This invention relates to a method for managing display devices, a display system, and an information processing device. Background Technology

[0002] The service of lending display devices of various functions to users according to a contract is well known. Patent Document 1 describes a general lending service for household appliances.

[0003] Patent Document 1: Japanese Patent Application Publication No. 2024-66761

[0004] In the lending service disclosed in Patent Document 1, there is a problem that the service desired by the user under the contract sometimes does not match the service actually provided.

[0005] For example, in loan services, sometimes the display device with the performance a user desires is not in stock. Previously, in such cases, users had to accept a loan of a high-performance display device they didn't need as a substitute for their desired device. In such situations, the service requested by the user does not match the service actually provided, potentially reducing user satisfaction. For instance, loaning a higher-performance display device might be more expensive, thus reducing user satisfaction. Summary of the Invention

[0006] An example of the management method for a display device according to the present invention includes: storing at least one of first identification information and second identification information and usage information by a first information processing device; connecting the first information processing device to a first display device via a communication network; sending the usage information to the first display device by the first information processing device according to the first identification information or the second identification information; and projecting a projected image by the first display device according to the usage information, wherein the first identification information is identification information representing the first display device, the second identification information is identification information representing the user of the first display device, the usage information is associated with at least one of the first identification information and the second identification information, and the usage information is information defining at least a portion of the usage mode that defines the function of the first display device.

[0007] An example of the display device management method of the present invention includes: storing at least one of first identification information and second identification information by a first information processing device; connecting the first information processing device to a first display device and a second display device via a communication network; storing a first threshold as a threshold for the brightness of the first display device by the first information processing device; and prompting the second display device as an alternative candidate for the first display device when the first information processing device receives second notification information related to the state of the first display device and the brightness of the second display device exceeds the first threshold, wherein the first identification information is identification information representing the first display device, the second identification information is identification information representing the user of the first display device, and the first threshold is associated with at least one of the first identification information and the second identification information.

[0008] An example of the display system of the present invention includes a first information processing device and a first display device. The first information processing device stores at least one of first identification information and second identification information, as well as usage information. The first information processing device is connected to the first display device via a communication network. The first identification information is identification information representing the first display device, and the second identification information is identification information representing the user of the first display device. The usage information is associated with at least one of the first identification information and the second identification information. The usage information is information defining at least a portion of the usage mode that defines the function of the first display device. The first information processing device sends the usage information to the first display device based on the first identification information or the second identification information, and the first display device projects a projected image based on the usage information.

[0009] In one example of the information processing apparatus of the present invention, the information processing apparatus stores at least one of first identification information and second identification information, the information processing apparatus is connected to a first display device and a second display device via a communication network, the information processing apparatus stores a first threshold as a threshold for the brightness of the first display device, the first identification information is identification information representing the first display device, the second identification information is identification information representing the user of the first display device, the first threshold is associated with at least one of the first identification information and the second identification information, and the information processing apparatus prompts the second display device as an alternative candidate for the first display device when it receives a second notification information related to the state of the first display device and the brightness of the second display device exceeds the first threshold. Attached Figure Description

[0010] Figure 1This is a structural example of a display system 1 that includes Embodiment 1 of the present invention.

[0011] Figure 2 This is a structural example of the information processing device 10.

[0012] Figure 3 This is a structural example of storage device 12.

[0013] Figure 4 This is a structural example of display device 20.

[0014] Figure 5 This is a structural example of registration information 122.

[0015] Figure 6 This is a flowchart illustrating an example of the processing flow of display system 1.

[0016] Figure 7 This is a structural example of a display system 1 that includes variation 1.

[0017] Figure 8 This is a structural example of the first registration information contained in the registration information 122 of variant example 1.

[0018] Figure 9 This is a structural example of the second registration information contained in the registration information 122 of variant example 1.

[0019] Figure 10 This is a flowchart illustrating an example of the processing flow of the display system 1 in Modified Example 1.

[0020] Figure 11 This is part 1 of a flowchart illustrating an example of the processing flow of display system 1 in variant 2.

[0021] Figure 12 This is part 2 of a flowchart illustrating an example of the processing flow of display system 1 in variant 2.

[0022] Figure 13 This is a structural example of display system 1 including variant 3.

[0023] Figure 14 This is a flowchart illustrating an example of the processing flow of display system 1 in variant 3.

[0024] Figure 15 This is a flowchart illustrating an example of the processing flow of display system 1 in variant 4.

[0025] Figure 16 This is a flowchart illustrating an example of the processing flow of the display system 1 in Modified Example 5.

[0026] Figure 17This is a flowchart illustrating an example of the processing flow of the display device 20 in Modified Example 6.

[0027] Figure 18 This is a structural example of the setting screen 70 in variation example 6.

[0028] Figure 19 This is a structural example of the modified rejection screen 75 of variation example 6.

[0029] Figure 20 This is a flowchart illustrating an example of the processing flow of the display device 20 in Modified Example 7.

[0030] Figure 21 This is a structural example of the setting screen 80 in variation example 7.

[0031] Figure 22 This is another example of the structure of screen 90 in variation example 7.

[0032] Label Explanation

[0033] 1 Display system; 10 Information processing device (first information processing device); 11 Processing device; 12 Storage device; 13 Communication device; 14 Input device; 15 Output device; 20 Display device (first display device; second display device); 21 Control unit; 22 Storage unit; 23 Light source; 24 Display unit; 25 Communication unit; 26 Read-out unit; 27 Imaging device; 30 Mounting device; 31 Read-out unit; 40 Projection area; 50 Projected image; 60 Terminal; 70, 80, 90 Setting screen; 71 Setting range bar; 72 Setting handle; 75 Change rejection screen; 81 Setting range bar; 81a Allowed range; 81b Prohibited range; 82 Setting handle; 91 Setting range bar; 92 Setting handle; 121 Program; 122 Registration information. Detailed Implementation

[0034] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0035] [Implementation Method 1]

[0036] Figure 1 An example of the structure of a display system 1 incorporating Embodiment 1 of the present invention is shown. The display system 1 includes an information processing device 10 and a display device 20. The information processing device 10 and the display device 20 are connected via a communication network. The communication network may include a wired communication network. Alternatively, the communication network may also include a wireless communication network.

[0037] The display device 20 is, for example, a projector. The display device 20 includes a light source. The display device 20 uses light from the light source to project a projected image 50 onto a projection area 40. The projection area 40 is, for example, a projection screen. However, the projection area 40 is not limited to a projection screen. The projected image 50 may also include a static image. The projected image 50 may also include a moving image. In addition to projecting the projected image 50, the display device 20 may also output sound.

[0038] The display device 20 can also be a display device other than a projector. Furthermore, the display device 20 can replace the projected image 50, or display images independent of projection. For example, the display device 20 can also be a display device equipped with a liquid crystal display, an LED display, or the like.

[0039] The display device 20 can be a loan object. For example, the holder of the display device 20 can be a business engaged in the lending business. Additionally, the user of the display device 20 can be a customer, i.e., an end user, who accepts the display device 20 from the holder of the display device 20. Hereinafter, when referred to simply as "holder" in this specification, it sometimes means the holder of the display device 20. Similarly, when referred to simply as "user" in this specification, it sometimes means the user of the display device 20.

[0040] The display device 20 is installed using a mounting device 30. The mounting device 30 is a device used to place the display device 20 in a space where it is in use.

[0041] Terminal 60 may also be provided as an interface terminal for accessing at least one of the information processing device 10 and the display device 20. Terminal 60 may be operated, for example, by the holder of the display device 20. Terminal 60 may be, for example, a mobile terminal. Specific examples of terminal 60 are smartphones or tablet terminals.

[0042] Information processing device 10 is, for example, a first information processing device. Display device 20 is, for example, a first display device. As described in this specification, display system 1 executes a management method for the display device.

[0043] Figure 2 An example of the structure of an information processing apparatus 10 is shown. The information processing apparatus 10 has the hardware structure of a known computer. The information processing apparatus 10 includes, for example, a processing unit 11 and a storage unit 12. The processing unit 11 includes, for example, a processor. The processor can be manufactured using integrated circuits, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), etc. The storage unit 12 includes a storage medium. The storage medium includes, for example, a semiconductor memory device, a disk drive, etc. Part or all of the storage medium can be a non-transitory storage medium.

[0044] The information processing apparatus 10 includes a communication device 13. The communication device 13 is, for example, a network interface. The communication device 13 communicates with external devices via a communication network, thereby sending and receiving information. The external devices include, for example, a display device 20 and a terminal 60. The external device may also be another computer. The communication device 13 is capable of at least one of wired and wireless communication.

[0045] The information processing device 10 includes an input device 14 and an output device 15. The input device 14 includes, for example, a keyboard and a mouse. The output device 15 includes, for example, a liquid crystal display and a printing device. Furthermore, a communication device 13 can also function as part of the input device 14. Additionally, the communication device 13 can also function as part of the output device 15.

[0046] Furthermore, the hardware structure of the information processing device 10 is not limited to... Figure 2 The structure shown is correct. The information processing device 10 can also be a computer with other structures. For example, the information processing device 10 can also have a structure that is a known mobile terminal. Known mobile terminals include, for example, mobile phones, smartphones, tablets, etc.

[0047] Figure 3 An example of the structure of the storage device 12 is shown. The storage device 12 stores, for example, a program 121 and registration information 122. The program 121 specifies the operation of the information processing device 10. By executing the program 121, the information processing device 10 performs the functions described in this embodiment. That is, the program 121 enables the computer to function as the information processing device 10 of this embodiment.

[0048] Figure 4 An example of the structure of the display device 20 is shown. The display device 20 includes a control unit 21, a storage unit 22, a light source 23, a display unit 24, and a communication unit 25. The control unit 21 controls the overall operation of the display device 20. The control unit 21 may be composed of one or more processors, or it may be composed of a dedicated processing device such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0049] The storage unit 22 includes random access memory (RAM) and read-only memory (ROM) for storing information. The storage unit 22 may also store programs (not shown) executed by the control unit 21. The storage unit 22 may also store information related to the settings of the display device 20. Information related to the settings of the display device 20 includes, for example, setting values ​​related to the light source 23.

[0050] Light source 23 emits light. Display unit 24 projects an image 50 using the light output from light source 23 to display the image. Communication unit 25 is, for example, a network interface. Communication unit 25 communicates with external devices via a communication network, thereby sending and receiving information. External devices are, for example, information processing device 10 or terminal 60. Communication unit 25 is capable of at least one of wired and wireless communication.

[0051] The setup of the display device 20 is performed, for example, according to known procedures. For instance, the owner or user of the display device 20 sets it up in a desired space. At this time, a power supply terminal (not shown) of the display device 20 is connected to a power outlet. Additionally, appropriate operations are performed on the communication unit 25. These operations on the communication unit 25 may include, for example, connecting a LAN (Local Area Network) cable. Alternatively, the operations on the communication unit 25 may involve setup related to wireless LAN or short-range wireless communication.

[0052] The following describes an example of a structure for fixing the display device 20 using the mounting fixture 30. The mounting fixture 30 includes, for example, an adapter for mounting the display device 20 to the ceiling and a connecting shaft. The connecting shaft is pre-fixed to the ceiling. Furthermore, the adapter and the connecting shaft are pre-fixed to each other. The display device 20 has multiple threaded holes. The adapter of the mounting fixture 30 has openings at positions corresponding to the threaded holes of the display device 20. Screws pass through the openings of the adapter and engage with the threaded holes of the display device 20, thereby securing the display device 20 to the adapter. Thus, the display device 20 is fixed to the ceiling via the mounting fixture 30.

[0053] Furthermore, the above is just one example; the specific structure and installation method of the mounting device 30 are not limited to the above. For example, the mounting device 30 may fix the display device 20 to a wall or floor instead of a ceiling. Alternatively, the mounting device 30 may not fix the display device 20 but only support it.

[0054] The structure of terminal 60 is not specifically illustrated. Terminal 60 can have a structure that is common to mobile terminals. Commonly known mobile terminals include, for example, personal computers, mobile phones, smartphones, or tablet terminals.

[0055] Figure 5 An example of the structure of registration information 122 is shown. Registration information 122 includes information related to at least one display device. For each display device, registration information 122 associates information related to that display device with identification information representing that display device. Identification information representing a display device is, for example, a display device ID. Identification information representing display device 20 is first identification information.

[0056] Information related to the display device includes the name of the display device, identification information indicating the holder of the display device (holder name), identification information indicating the user of the display device (username), the IP address of the display device, and information on how the display device is used. The name of the display device is, for example, the model name of a projector. The holder name is, for example, the name of a business operating a rental service. The user name is, for example, the name of the end user who accepts the rental of the display device. The user name associated with the identification information indicating display device 20 is the second identification information. The IP address is, for example, information that identifies the display device on the Internet or LAN.

[0057] In registration information 122, regarding a certain display device, if the holder's name matches the user's name, the display device can also indicate that it is in stock with the holder. In this case, it can be said that the display device can be arbitrarily lent out according to a contract with a new end user, etc.

[0058] Usage information refers to information that defines at least a portion of the way the display device is used, specifying its functions. A function, for example, is the function of projecting the projected image 50. Limiting the usage means, for example, restricting the function of the display device. Restricting the function of the display device could mean limiting the brightness of the projected image 50, limiting the resolution of the projected image 50, or limiting the automatic brightness correction function of the display device. Furthermore, limiting a function could also include, for example, a stop function, or, where the function has performance expressed by a numerical range, limiting the range of values ​​that can be used to a narrower range than specified in the specifications. The operating range could be, for example, a range from the lower limit to the upper limit of brightness, or a range from the lower limit to the upper limit of resolution.

[0059] Figure 5 The brightness upper limit range shown is an example of usage information. The brightness upper limit range indicates the upper limit range of brightness for the display device in use. The brightness upper limit range includes thresholds representing the boundaries of the range related to the brightness upper limit. The brightness upper limit is the upper limit value of brightness achieved in a specific usage mode of the display device. For example, the brightness upper limit represents the brightness when displaying white. The thresholds representing the boundaries of the range related to the brightness upper limit are, for example, a first threshold or a second threshold.

[0060] The threshold can also be expressed as the beam of light output from the light source of the display device. The unit of the beam is, for example, a lumen. Alternatively, the threshold can also be expressed as a ratio relative to the rated output of the light source of the display device.

[0061] exist Figure 5In the example, the display device with display device ID "D1" has a brightness limit of "2000". As an example for explanation, this means that the display device's brightness must be at least 2000 lumens. In other words, it can be said that the minimum guaranteed brightness limit of the display device is 2000 lumens. The brightness limit range is determined, for example, based on a contract between the holder and the user. For example, in the contract, the holder is obligated to set the brightness limit of the display device to at least 2000 lumens. Such a threshold is the first threshold.

[0062] As another example of interpretation, a brightness limit of "2000" indicates a regulation that the brightness of the display device cannot exceed 2000 lumens. For example, a contract might prohibit the user from setting the maximum brightness of the display device to a value exceeding 2000 lumens. In other words, the maximum brightness of the display device that the user can use is 2000 lumens. This threshold is the second threshold.

[0063] Usage information can also include individual values ​​for each of these interpretations related to the upper limit of brightness. For example, the upper limit of brightness can also be set to a maximum brightness of 2000 lumens or more for the display device, and a maximum brightness of 3000 lumens or less for the display device.

[0064] return Figure 5 The display device with display device ID "D2" has a maximum brightness range of 5000 lumens. Furthermore, the maximum brightness range of the display device with display device ID "D3" is defined as a ratio of "40%" rather than a beam value. This represents a ratio relative to a specific reference value. For example, it is 40% of the beam value corresponding to the rated value of the display device. As a specific example, if the rated maximum brightness of the display device is 5000 lumens, the maximum brightness range is 5000 × 40 / 100 = 2000 [lumens].

[0065] Usage information can also replace the upper limit of brightness or include other information besides the upper limit of brightness. For example, usage information may include information limiting the driving of the pixel shifting device provided by the display device 20. Specifically, the information processing device 10 sends a request to the display device 20 to stop driving the pixel shifting device as usage information. Upon receiving the usage information, the display device 20 sets its mode to a mode in which the driving of the pixel shifting device is stopped. The display device 20, set to the mode in which the driving of the pixel shifting device is stopped, displays the projected image 50 on the projection area 40. Thus, a projected image 50 with a limited resolution can be provided to the user.

[0066] In this embodiment, usage information is associated with the display device ID. That is, usage information is defined for each display device. As a variation, usage information can also be associated with the username. That is, usage information can also be defined for each user. In this case, registration information 122 may not include the display device ID. Furthermore, usage information can be associated with both the display device ID and the username. In addition, usage information is information determined between the holder and the user, and does not necessarily need to be consistent with the specifications of the display device.

[0067] Figure 6 This is a flowchart illustrating an example of the processing flow of display system 1. This flowchart represents the management method of the display device according to this embodiment. Figure 6 In the processing, firstly, in step S1, the information processing device 10 stores the registration information 122 in the storage device 12. Step S1 is the first storage step.

[0068] The specific execution order of step S1 can be arbitrarily designed based on known technologies. A specific example is described below. First, the holder of the display device 20 registers with the information processing device 10 via the terminal 60. Next, the holder inputs information related to multiple display devices 20 as registration information 122 into the information processing device 10 via the terminal 60. The information processing device 10 stores the input information as registration information 122.

[0069] Each display device 20 stores its display device ID and IP address in its storage unit 22. The display device ID and IP address included in the registration information 122 are consistent with or correspond to the display device ID and IP address stored in the storage unit 22 of the display device 20.

[0070] With registration information 122 already stored, the holder can update the registration information 122 at will. For example, the terminal 60 can also display the registration information 122 at a glance. Additionally, for example, if a display device is lent to an end user, the holder can change the username of the display device from their own name to the end user's name via the terminal 60. Furthermore, if a display device is returned from the end user to the holder, the holder can change the username of the display device from the end user's name to their own name via the terminal 60.

[0071] Next, in step S2, the display device 20 is activated. This step S2 is performed, for example, based on a power-on operation from the terminal 60. The holder can also send a power-on command to the display device 20 via the terminal 60 and the information processing device 10, or send a power-on command directly to the display device 20 via the terminal 60.

[0072] Next, in step S3, the display device 20 sends the display device ID and IP address to the information processing device 10. Furthermore, the information processing device 10 receives the display device ID and IP address.

[0073] Next, in step S4, the information processing device 10 obtains usage information of the display device 20. This usage information is obtained, for example, by retrieving registration information 122 based on the display device ID received in step S3.

[0074] Next, in step S5, the information processing device 10 sends the usage information obtained in step S4 to the display device based on the identification information or username representing the display device 20. Here, the destination can be the IP address received in step S3. Additionally, the display device 20 receives the usage information.

[0075] Next, in step S6, the display device 20 projects the projected image 50 according to the usage information. For example, the control unit 21 of the display device 20 controls the beam of the light source 23 based on the usage information. As a result, the display unit 24 projects the projected image 50.

[0076] The specific details of the control in step S6 can be arbitrarily designed by the holder. For example, if the upper limit of the brightness range of the display device 20 is stored as 2000 lumens in the information processing device 10, the control unit 21 of the display device 20 determines whether the upper limit of the brightness in the display device 20 is 2000 lumens or more. The method for obtaining the upper limit of brightness is arbitrary. For example, the specification value pre-stored in the display device 20 can be used as a reference for the upper limit of brightness. Alternatively, the method described in the modified example 3 below can also be used.

[0077] Furthermore, if the upper limit of the brightness in the display device 20 is less than 2000 lumens due to the degradation of the light source 23 over time, the control unit 21 controls the light source 23 to make the upper limit of brightness 2000 lumens or more. As a specific example, the control unit 21 may also change the setting value related to the upper limit of the brightness of the light source 23. Alternatively, it may change the power supplied to the light source 23 or the output of the light source 23. In this case, the control unit 21 may also determine the appropriate power or output based on the required upper limit of brightness.

[0078] As explained above, according to the display system 1 of embodiment 1, if the upper limit of the brightness in the display device 20 decreases due to deterioration of the display device 20 or an unexpected setting change, the upper limit of the brightness in the display device 20 can be corrected to an appropriate value. This allows the service desired by the user under the contract to match the service actually provided by the display device 20.

[0079] When the upper limit of the brightness in the display device 20 is 2000 lumens or more, the control unit 21 obtains the setting value related to the light source and determines whether the setting value related to the light source is 2000 lumens or less.

[0080] If the set value is below 2000 lumens, the process in step S6 ends.

[0081] If the set value exceeds 2000 lumens, the control unit 21 controls the light source 23 to reduce the brightness limit to 2000 lumens or less, thus ending the processing in step S6. The specific control at this time can also use the method described in the modified example 5 below.

[0082] Based on this control, if a user violates the contract and changes the settings of the display device 20, the brightness limit can be corrected to the value specified in the contract. This allows the services permitted by the contract to match the services actually provided by the display device 20.

[0083] Furthermore, in Embodiment 1, it is described that the display device 20 is installed in the usage space using the mounting fixture 30, but the display device 20 may also be installed in the usage space without using the mounting fixture 30.

[0084] [Variation Example 1]

[0085] Modification 1 is an embodiment in which the display system 1 obtains usage information via the identification information of the mounting device 30, as described in Embodiment 1. Hereinafter, Modification 1 will be described. In the following description, parts common to Embodiment 1 will sometimes be omitted.

[0086] Figure 7 This diagram illustrates a structural example of a display system 1 including Modified Example 1. The display device 20 includes a read-only unit 26. The read-only unit 26 is, for example, an IC tag. The read-only unit 26 is capable of transmitting information to a reading device via wireless communication. The wireless communication is, for example, short-range wireless communication. The read-only unit 26 stores the display device ID and the IP address of the display device 20.

[0087] Similarly, the mounting device 30 includes a read-only unit 31. The read-only unit 31 is, for example, an IC tag. The read-only unit 31 can transmit information to a reading device via wireless communication. The wireless communication is, for example, short-range wireless communication. The mounting device ID is stored in the read-only unit 31. The mounting device ID is identification information representing the mounting device.

[0088] Terminal 60 includes a reading unit (not shown). The reading unit can obtain information stored in a corresponding read unit via wireless communication. The wireless communication is, for example, short-range wireless communication.

[0089] Figure 8 and Figure 9The structure example of registration information 122 shown in Modified Example 1 is illustrated. Figure 8 This shows a structural example of the first registration information contained in registration information 122. Figure 9 This shows a structural example of the second registration information contained in registration information 122.

[0090] The first registration information is for each display device and associates information related to that display device with the display device ID. The information related to the display device includes the display device name, the name of the display device holder, the ID of the mounting device used to install the display device, and the IP address of the display device. The third identification information is the identification information indicating the mounting device 30 on which the display device 20 is installed.

[0091] The second registration information is for each installation device, and associates information related to that installation device with the installation device ID. The information related to the installation device includes the user's name of the display device installed using that installation device and information on how the display device installed using that installation device is used.

[0092] Figure 10 This is a flowchart illustrating an example of the processing flow of display system 1. This flowchart represents the management method of the display device in this modified example. Figure 10 In the processing, firstly in step S11, the information processing device 10 stores the registration information 122 in the storage device 12. Step S11 is the first storage step.

[0093] The specific execution order of step S11 can be arbitrarily designed based on known technologies. A specific example is described below. First, the holder of the display device 20 logs into the information processing device 10 via the terminal 60. Next, the holder inputs information related to multiple display devices 20 as registration information 122 into the information processing device 10 via the terminal 60. The information processing device 10 stores the input information as registration information 122. Thus, step S11 includes: storing, via the information processing device 10, identification information representing the installation appliance 30 in association with usage information; and storing, via the information processing device 10, identification information representing the display device 20 in association with identification information representing the installation appliance 30.

[0094] Here, the appliance ID does not need to be manually entered by the holder. For example, the information can be read from the read-only section 31 of the appliance 30 using the reading unit of the terminal 60, thereby inputting the appliance ID into the terminal 60.

[0095] Similarly, the display device ID and display device IP address do not need to be manually entered by the holder. For example, the information can be read from the read-only unit 26 of the display device 20 using the reading unit of the terminal 60, thereby inputting the display device ID and IP address to the terminal 60.

[0096] Next, in step S12, the display device 20 is activated. This step S12 is performed in the same manner as step S2 in Embodiment 1, for example.

[0097] Next, in step S13, the terminal 60 reads the display device ID and IP address of the display device 20 from the read-by-read section 26 of the display device 20. Furthermore, in this step S13, the terminal 60 does not need to perform certain processing.

[0098] Next, in step S14, terminal 60 sends the display device ID and IP address of display device 20 to information processing device 10. Information processing device 10 receives the display device ID and IP address of display device 20.

[0099] Here, in addition to displaying the device ID and IP address, terminal 60 can also send installation information. Furthermore, information processing device 10 can also receive installation information. The installation information can also be information indicating that work related to display device 20 has begun. Work related to display device 20 can be, for example, the work of installing display device 20 onto installation fixture 30. Alternatively, work related to display device 20 can be the use of display device 20 itself.

[0100] Next, in step S15, the information processing device 10 obtains usage information of the display device 20. This is performed, for example, as follows: First, based on the display device ID received in step S14, the information processing device 10 obtains the installation device ID corresponding to the display device 20 by referring to the first registration information. Then, based on the installation device ID, the information processing device 10 obtains usage information corresponding to the installation device by referring to the second registration information.

[0101] The subsequent processing can be the same as in Implementation Method 1. That is, usage information is sent in step S5, and then the projected image is projected in step S6.

[0102] Here, in implementation method 1, as Figure 5 As shown, the usage information is associated with the display device ID. Therefore, if the loaned display device is temporarily replaced due to maintenance or other work, the association between the display device ID and the usage information stored in the registration information 122 needs to be changed before and after the work.

[0103] In contrast, in variation example 1, such as Figure 8 as well as Figure 9 As shown, usage information is associated with the display device ID via the installation appliance ID. Therefore, for example, when replacing a loaned display device, existing usage information can be used directly simply by registering a new association between the display device ID and the installation appliance ID.

[0104] With this structure, for example, if the manager of the contract related to the loan of the display device 20 and the on-site operator performing the replacement work of the display device 20 are different, the on-site operator does not need to have information related to the contract, thus simplifying on-site operations. Furthermore, the contract manager does not need to update information related to usage methods, reducing management complexity.

[0105] In the above-described variation 1, terminal 60 is, for example, a terminal operated by the holder of display device 20. However, the operator of terminal 60 is not limited to the holder. For example, terminal 60 may also be a terminal operated by the user of display device 20. In addition, the holder-operated terminal 60 and the user-operated terminal 60 may be provided independently.

[0106] [Variation Example 2]

[0107] Modification 2 is an embodiment in which the display system 1 is supplemented with a function that provides notifications to other display devices to replace the function of a certain display device, as described in Embodiment 1 or Modification 1. Modification 2 will be described below. In the following description, parts common to Embodiment 1 or Modification 1 may sometimes be omitted.

[0108] In Variation 2, the display device has the function of sending notification information related to the state of the display device. This notification information will be referred to as "Second Notification Information" below.

[0109] The second notification information may include, for example, information related to an abnormality in the display device. The second notification information may include, for example, information indicating that an abnormality has occurred in the display device. For example, the display device may also have a function to detect abnormalities in the display device. Furthermore, the display device may also have a function to send information indicating the detection of the abnormality and the content of the detected abnormality as the second notification information when an abnormality is detected. The destination of the transmission is, for example, the information processing device 10. Moreover, those skilled in the art can appropriately design the specific structure and processing for detecting abnormalities by referring to known technologies.

[0110] The second notification information may, for example, include information indicating a decrease in the brightness of the display device. For instance, the second notification information may include information indicating that a measured value related to the brightness of the display device is less than a threshold related to usage information. Those skilled in the art can arbitrarily design methods for obtaining brightness-related measured values. Specific examples of methods for obtaining brightness-related measured values ​​will be described in Modification 3 below.

[0111] Figure 11 and Figure 12 This is a flowchart illustrating an example of the processing flow of display system 1 in variant 2. Figure 11 This shows part 1 of the flowchart. Figure 12 Part 2 of the flowchart is shown. This flowchart illustrates the management method of the display device in Modified Example 2. Figure 11 and Figure 12 In the processing, firstly in step S21, the information processing device 10 stores the registration information 122 in the storage device 12. Step S21 is the first storage step.

[0112] In Variation 2, the registration information 122 includes information relating to multiple display devices. For example, the registration information 122 includes information relating to the first display device and information relating to the second display device.

[0113] Here, consider a scenario where an anomaly occurs in the first display device. In step S22, the first display device sends a second notification message to the information processing device 10. For example, the second notification message includes the display device ID of the first display device and information related to the anomaly of the first display device. For example, the second notification message includes information indicating that the brightness of the display device has decreased. The information processing device 10 receives the second notification message from the first display device.

[0114] Next, in step S23, the information processing device 10 determines whether a replacement machine is needed for the first display device. Based on the content of the second notification information, particularly information related to the malfunction of the first display device, the determination is made regarding whether a replacement machine is needed. As an example, the information processing device 10 may also store tables defining whether a replacement machine is needed, corresponding to the types of malfunctions considered.

[0115] If no replacement machine is needed (step S23: No), the information processing device 10 ends. Figure 11 as well as Figure 12 The processing proceeds as follows. If a replacement machine is required (step S23: Yes), in step S24, the information processing device 10 obtains usage information related to the first display device. This processing is performed, for example, in the same manner as step S4 or step S15.

[0116] Next, in step S25, the information processing device 10 obtains the holder name of the first display device. The holder name of the first display device can be obtained, for example, based on the display device ID by referring to the registration information 122.

[0117] Next, in step S26, the information processing device 10 retrieves one or more display devices that can be lent to the user as replacement machines for the first display device. These replacement machines are display devices that the holder manages as inventory. For example, the replacement machines can be retrieved by referring to registration information to obtain display devices whose user names match the holder names obtained in step S25.

[0118] Next, in step S27, the information processing device 10 further extracts from one or more display devices that can be lent to the user as a substitute for the first display device, the display device whose brightness exceeds a threshold value related to the usage information of the first display device. Here, the display device that can be lent to the user as a substitute for the first display device and meets the conditions of the usage information related to the first display device is designated as the second display device. The threshold value of the usage information of the first display device is a first threshold value. For example, when the first display device is... Figure 5 In the case of the display device corresponding to the display device ID "D1", the threshold for the usage information of the first display device is 2000 lumens. Therefore, we further extract the display devices with a brightness of more than 2000 lumens that can be lent to the user as a replacement machine for the first display device.

[0119] Here, the method for obtaining the brightness of the display device that can be lent to the user as a replacement machine for the first display device can be arbitrarily designed by those skilled in the art. As an example, the brightness of the display device that can be lent to the user as a replacement machine for the first display device is represented by the upper limit of the brightness of the display device that can be lent to the user as a replacement machine for the first display device. For example, the maximum brightness of each display device that can be lent to the user as a replacement machine for the first display device may be used as the brightness of that display device and stored in the registration information 122 in association with the display device ID. Alternatively, the upper limit of brightness measured for each display device that can be lent to the user as a replacement machine for the first display device may be set as the brightness of the display device that can be lent to the user as a replacement machine for the first display device and stored in the registration information 122. Alternatively, the upper limit of brightness of the display device that can be lent to the user as a replacement machine for the first display device may be calculated based on the operating time of each display device that can be lent to the user as a replacement machine for the first display device.

[0120] Next, in step S28, the information processing device 10 suggests the second display device extracted in step S27 as an alternative candidate to the first display device. If multiple second display devices exist, the information processing device 10 may also provide a list of the second display devices.

[0121] Those skilled in the art can design any specific method of prompting. For example, the information processing device 10 may also prompt the device by sending the display device ID of the second display device to the terminal 60. In this case, the terminal 60 may also display the received display device ID of the second display device. Alternatively, the information processing device 10 may also prompt the device by displaying the display device ID of the second display device on a display device, which is an example of the output device 15 of the information processing device 10.

[0122] Additionally, the information processing device 10 can also output the display device ID of the first display device and the second notification information. For example, this information can also be sent to the terminal 60. The terminal 60 can also receive and display this information.

[0123] In one example, terminal 60 displays the display device ID of the first display device, a list of anomalies detected in the first display device, and a list of display device IDs of the second display device.

[0124] Thus, when the information processing device 10 receives a second notification message related to the state of the first display device and the brightness of the second display device exceeds the threshold of the usage information, it prompts the second display device as an alternative candidate for the first display device.

[0125] Next, in step S29, the information processing device 10 accepts the selection of an alternative machine. This process is performed, for example, as follows: The terminal 60 displays the display device ID of one or more second display devices. The holder selects any one of the multiple second display devices as an alternative machine. The terminal 60 accepts the selection and sends the display device ID of the selected second display device to the information processing device 10. The information processing device 10 receives the display device ID, thereby accepting the selection of an alternative machine.

[0126] Next, in step S30, the information processing device 10 stores registration information for the selected second display device, i.e., the alternative machine. Step S30 is the second storage step. For example, for this second display device, usage information is updated. Here, the usage information of the second display device is updated to be the same as the usage information of the first display device.

[0127] For example, the information processing device 10 stores a brightness threshold of the second display device as usage information for the second display device. This threshold is, for example, a threshold representing the boundary of a range related to the upper limit of the brightness of the second display device. This threshold is a first threshold. As described above, the value of the first threshold of the second display device is equal to the value of the first threshold of the first display device.

[0128] This process automatically suggests suitable alternative candidates, eliminating the need for the holder to review the details of each display device to select a replacement. Furthermore, the replacement device adheres to the same contractual terms as the original display device.

[0129] Here, although Figure 11 as well as Figure 12 The first display device is not shown, but the holder or on-site operator may remove it from the installation device 30. Afterwards, the holder or on-site operator may install a replacement machine, namely the selected second display device, on the installation device 30.

[0130] Then, the alternative machine, namely the selected second display device, is used. The usage-related processing can be the same as steps S2 to S6 of Embodiment 1, for example. For example, the alternative machine projects the projected image 50 according to the usage information.

[0131] According to Variation 2 described above, the holder of the display device can quickly provide a replacement device in the event of a malfunction in the lent display device. Therefore, the loss of the opportunity to provide service is mitigated.

[0132] Furthermore, in the event of an anomaly with the lent display device, the holder can automatically obtain a list of suitable alternative candidates. In particular, only display devices suitable for the usage information related to the current contract are suggested as alternative candidates, thus reducing the effort required to investigate display devices that can provide services equivalent to or better than those desired by the user.

[0133] Furthermore, the user can quickly obtain a replacement device when the display brightness decreases. Therefore, user satisfaction increases.

[0134] [Variation Example 3]

[0135] Modification 3 is an embodiment in which the display system 1 detects the degradation of the display device over time, as described in Embodiment 1, Modification 1, or Modification 2. Modification 3 will be described below. In the following description, parts common to Embodiment 1, Modification 1, or Modification 2 may sometimes be omitted.

[0136] Figure 13 The following is a structural example of a display system 1 including variant 3. The display device 20 includes an imaging device 27. The imaging device 27 is, for example, a camera. The imaging device 27 is configured to capture the projected image 50 projected by the display device 20.

[0137] Figure 14 This is a flowchart illustrating an example of the processing flow of the display system 1 in Modified Example 3. The flowchart represents the management method of the display device in Modified Example 3. Figure 14 The processing is initiated periodically or according to specific instructions after the display device 20 starts operating.

[0138] exist Figure 14 In the processing, firstly, in step S41, the information processing device 10 sends a brightness measurement request to the display device 20. The display device 20 receives the brightness measurement request.

[0139] Next, in step S42, the display device 20 performs a brightness measurement process. The brightness measurement process is performed, for example, as follows: First, the display device 20 projects a white image with its brightness set to the maximum value as a projected image 50. The display device 20 then captures the white image using the imaging device 27. The display device 20 calculates an average brightness value for the area in the captured image corresponding to the white image. The calculated average value can be considered an example of a brightness-related measurement value.

[0140] Next, in step S43, the display device 20 sends the display device ID and the measured value to the information processing device 10. The information processing device 10 receives the display device ID and the measured value. The information processing device 10 stores the received display device ID and measured value in association in the storage device 12. The display device ID and the measured value may also be appended to the registration information 122, for example.

[0141] Next, in step S44, the information processing device 10 obtains usage information related to the display device ID received in step S43. Here, the usage information is, for example, a brightness threshold for the display device. This threshold is a first threshold.

[0142] Next, in step S45, the information processing device 10 determines whether the measured value of the brightness exceeds a first threshold. If the measured value of the brightness exceeds the first threshold (step S45: Yes), the information processing device 10 terminates. Figure 14 The processing.

[0143] If the measured brightness value does not exceed the first threshold (step S45: No), in step S46, the information processing device 10 outputs first notification information. The first notification information indicates that the display device 20 is not suitable for use. More specifically, the first notification information may also indicate that the light source 23 of the display device 20 has deteriorated. The output destination of the first notification information is, for example, the terminal 60. Alternatively, the output destination of the first notification information may be, for example, a display device provided by the information processing device 10. The output destination of the first notification information may also be either of these.

[0144] Next, in step S47, the information processing device 10 sends the first notification information to the display device 20. The display device 20 receives the first notification information.

[0145] Next, in step S48, the display device 20 outputs the first notification information. The destination of the first notification information may be, for example, the terminal 60. Alternatively, the destination of the first notification information may be, for example, the display unit 24 provided by the display device 20. The destination of the first notification information may also be either of these.

[0146] Thus, if the measured value related to the brightness of the display device 20 is less than a first threshold, the display device 20 or the information processing device 10 outputs a first notification message. Normally, the brightness of the display device 20 decreases over time due to degradation. In particular, the upper limit of brightness decreases. Here, according to Modification 3, when the brightness decreases and becomes unsuitable for usage information, the first notification message is output, so that the holder and user can know what actions need to be taken. For example, procedures such as contract renewal, model change, and product maintenance can be initiated between the holder and user.

[0147] exist Figure 14 In the example, both steps S46 and S48 output the first notification information, but one of them can be omitted. For example, step S46 can also be omitted. Alternatively, steps S47 and S48 can also be omitted.

[0148] exist Figure 14 In this example, steps S44 and S45 are executed in the information processing device 10, but these processes can also be executed in the display device 20. In this case, the first notification information can also be sent from the display device 20 to the information processing device 10.

[0149] When the first notification information is output to the terminal 60, the terminal 60 may be a terminal operated by the holder of the display device 20 or a terminal operated by the user of the display device 20.

[0150] Alternatively, other sensors can be used to replace the imaging device 27. For example, the display device 20 may also have a sensor for measuring the light beam within the device, along the optical path from the light source 23 to the display unit 24. With such a sensor, it is also possible to obtain measurement values ​​related to the brightness of the display device 20.

[0151] [Variation Example 4]

[0152] Modification 4 is an implementation in which, in any of Embodiment 1 and Modifications 1 to 3, the display system 1 performs verification related to usage information based on contract changes, etc. Modification 4 will be described below. In the following description, parts common to Embodiment 1 and Modifications 1 to 3 may sometimes be omitted.

[0153] Figure 15 This is a flowchart illustrating an example of the processing flow of the display system 1 in Modified Example 4. The flowchart represents the management method of the display device in Modified Example 4. Figure 15 For example, this processing is performed when the usage information for any display device is changed.

[0154] First, in step S51, the information processing device 10 receives a request to update usage information. The request to update usage information includes the display device ID of the display device to which the update request is received and new usage information.

[0155] Next, in step S52, the information processing device 10 determines whether the brightness of the display device exceeds the threshold of the new usage information. The threshold of the new usage information is the first threshold.

[0156] If the brightness of the display device exceeds the threshold of the new usage information (step S52: Yes), in step S53, the information processing device 10 updates the usage information. That is, the information processing device 10 updates the usage information of the display device to the new usage information in the registration information 122.

[0157] If the brightness of the display device does not exceed the threshold of the new usage information (step S52: No), in step S54, the information processing device 10 selects an alternative machine. Details of this process are as follows... Figure 15 Not shown in the image. This process, for example, uses new usage information, such as... Figure 11 as well as Figure 12 The steps after step S24 are executed in the same way.

[0158] According to Variation Example 4, if the usage information is changed due to changes in the contract or other reasons, and the display device becomes unsuitable for the new usage information, the holder can appropriately select a replacement machine.

[0159] For example, suppose the maximum brightness of a display device lent to a user is 3000 lumens. Furthermore, the threshold for the maximum brightness range indicated in the usage information for this display device is 2000 lumens. Suppose the contract for this display device is renewed, and the threshold for the maximum brightness range is changed to 4000 lumens. In this case, the brightness of the display device is insufficient, and therefore it cannot be suitable for the usage information. In this situation, according to Variation 4, the holder can accept the suggestion of an appropriate alternative candidate and can appropriately select an alternative machine. Therefore, a decrease in user satisfaction can be avoided.

[0160] [Variation Example 5]

[0161] Modification 5 is an embodiment that adds a function to Embodiment 1 and any of Modifications 1 to 4 to appropriately change the setting related to the brightness of the display device when there is an excess of usage information. Modification 5 will be described below. In the following description, parts common to Embodiment 1 and any of Modifications 1 to 4 will sometimes be omitted.

[0162] Figure 16 This is a flowchart illustrating an example of the processing flow of the display system 1 in Modified Example 5. The flowchart represents the management method of the display device in Modified Example 5. Figure 16 The processing is initiated periodically or according to specific instructions after the display device 20 starts operating.

[0163] First, in step S61, the information processing device 10 sends a setting value acquisition request to the display device 20. The display device 20 receives the setting value acquisition request. In step S62, the display device 20 sends the setting value to the information processing device 10. The information processing device 10 receives the setting value. The setting value is, for example, a setting value related to the light source 23.

[0164] Next, in step S63, the information processing device 10 obtains usage information of the display device 20. In step S64, the information processing device 10 determines whether the set value exceeds a threshold of the usage information. The threshold of the usage information is a second threshold. If the set value does not exceed the threshold of the usage information (step S64: No), the information processing device 10 terminates. Figure 16 The processing.

[0165] If the set value exceeds the threshold of the usage information (step S64: Yes), in step S65, the information processing device 10 determines a new set value. The new set value is determined according to the usage information in a manner suitable for the usage information. For example, the new set value is a value below the threshold of the usage information. If the threshold of the upper limit range of brightness shown in the usage information of the display device is 2000 lumens, the new set value is determined to be 2000 lumens or a value smaller than that.

[0166] Next, in step S66, the information processing device 10 sends a setting value change request to the display device 20. The display device 20 receives the setting value change request. The setting value change request contains a command indicating a change in the setting value and the new setting value. Based on the setting value change request, the display device 20 changes the setting value in step S67.

[0167] In this way, if the setting value related to the light source 23 of the display device 20 exceeds the threshold of the usage information, the display device 20 will change the setting value to below the threshold.

[0168] According to the above-described variation 5, when the setting related to the brightness of the display device is excessive relative to the usage information, the setting can be changed to an appropriate state. For example, if the setting value is an excessive value exceeding the contracted setting value due to user error, the setting value can be changed to a value within the contract range. In this way, it is possible to prevent the provision of services that differ from the user's desired service.

[0169] [Variation Example 6]

[0170] Modification 6 is an embodiment that further includes a specific processing method for changing the setting value related to the light source 23 of the display device 20, in any of Embodiment 1 and Modifications 1 to 5. Modification 6 will be described below. In the following description, parts common to Embodiment 1 and any of Modifications 1 to 5 will sometimes be omitted.

[0171] Figure 17 This is a flowchart illustrating an example of the processing flow of the display device 20 in Modified Example 6. The flowchart illustrates the management method of the display device in Modified Example 6. Figure 17 The processing begins when the display device 20 accepts the setting screen display request in step S71.

[0172] The setting screen display request is a request to display a setting screen, which is used to set settings related to the light source 23 of the display device 20. The display device 20 displays the setting screen in step S72 according to the setting screen display request.

[0173] Figure 18 This is a structural example of the setting screen 70 in variation 6. The setting screen 70 is displayed, for example, in part or all of the area of ​​the projected image 50. The setting screen 70 includes a setting range bar 71 and a setting handle 72.

[0174] Next, the display device 20 accepts a request to change the setting value in step S73. The user can input a request to change the setting value via the setting screen 70. For example, the user can input a new setting value by changing the position of the setting handle 72 on the setting range bar 71 via the input unit (not shown) of the display device 20. Alternatively, after moving the setting handle 72 to the position corresponding to the desired setting value, the user can input a request to change the setting value by operating the OK button.

[0175] In response to a request to change a setting value, in step S74, the display device 20 determines whether the new setting value exceeds a threshold value for the usage information. The threshold value for the usage information is a second threshold value.

[0176] If the new setting value does not exceed the threshold of the usage information (step S74: No), in step S75, the display device 20 updates the setting value. Thus, the setting value becomes the value desired by the user. Although not illustrated, after step S75, the display device 20 may also display a screen indicating that the setting value has been changed. Furthermore, the display device 20 may also send the new setting value to the information processing device 10.

[0177] If the new setting value exceeds the threshold of the usage information (step S74: Yes), in step S76, the display device 20 outputs information for rejecting the change request. This information for rejecting the change request is displayed, for example, on a change rejection screen.

[0178] Figure 19 This is a structural example of the modified rejection screen 75 in variation 6. The modified rejection screen 75 is displayed, for example, in part or all of the area of ​​the projected image 50. Figure 19 In the example, the change rejection screen 75 displays a message such as "Unable to update settings" as information to reject the change. After step S76, Figure 17 The processing is complete. In this case, the settings of the display device 20 are not updated.

[0179] Thus, in Modification 6, when the display device 20 receives a request to change the setting value related to the light source 23 of the display device 20 to a value exceeding the threshold of the usage information, it outputs information to reject the change request.

[0180] According to the above-described variation 6, if a user misoperation or other error results in the user indicating a setting value that is unsuitable for the contract, the change of the setting value is refused. Therefore, it is possible to prevent situations where services different from those desired by the user are provided.

[0181] Furthermore, in variation 6, Figure 17 The processing is performed by the display device 20. However, Figure 17 The processing can also be performed by the information processing device 10. In this case, the setting screen 70 and the change rejection screen 75 are displayed, for example, on a display device provided with the information processing device 10. Alternatively, after step S75, the information processing device 10 may send the same setting change request as in step S66 to the display device 20. In this case, information for rejecting the change request is output by the information processing device 10.

[0182] [Variation Example 7]

[0183] Modification 7 is an embodiment that further includes a specific processing method for changing the setting value related to the light source 23 of the display device 20, in any of Embodiment 1 and Modifications 1 to 5. Modification 7 will be described below. In the following description, parts common to Embodiment 1 and any of Modifications 1 to 5 will sometimes be omitted.

[0184] Figure 20 This is a flowchart illustrating an example of the processing flow of the display device 20 in Modified Example 7. Figure 20 The flowchart shown illustrates the management method of the display device in Variation 7. Figure 20The processing begins when the display device 20 accepts the setting screen display request in step S81.

[0185] A setting screen display request is a request to display a setting screen. A setting screen is a screen used to set setting values ​​related to the light source 23 of the display device 20. The display device 20 displays the setting screen in step S82 according to the setting screen display request. The setting screen is determined based on a threshold value of usage information. For example, different content is displayed on the setting screen based on the threshold value of the usage information. That is, the setting screen is displayed based on the threshold value of the usage information. The threshold value of the usage information is a second threshold value.

[0186] Figure 21 This is a structural example of the setting screen 80, which is a variation of the setting screen 7. The setting screen 80 is displayed, for example, in part or all of the area of ​​the projected image 50. The setting screen 80 includes a setting range bar 81 and a setting handle 82.

[0187] The setting range bar 81 includes a permitted range 81a and a prohibited range 81b. The permitted range 81a is the range of setting values ​​represented by the setting range bar 81, where the setting value is below the threshold of the usage information. The prohibited range 81b is the range of setting values ​​represented by the setting range bar 81, where the setting value exceeds the threshold of the usage information. The permitted range 81a and the prohibited range 81b are displayed, for example, in different ways, and specifically, in different colors.

[0188] The setting handle 82 can only move within the allowed range 81a in the setting range bar 81. That is, even if an operation is performed in the setting screen 80 to move the setting handle 82 to the prohibited range 81b, the display device 20 keeps the setting handle 82 within the allowed range 81a.

[0189] Thus, the setting screen 80 is configured to accept new setting value input within a range below the threshold of the usage information, but not accept new setting value input within a range exceeding the threshold of the usage information.

[0190] Figure 22 This is another example of the structure of a setting screen 90, which is a variation of Example 7. The setting screen 90 is displayed, for example, in part or all of the area of ​​the projected image 50. The setting screen 90 includes a setting range bar 91 and a setting handle 92.

[0191] The setting range bar 91 displays the range below the threshold for which usage information is used. Figure 22In the example, the maximum value that can be entered is "75%". This corresponds, for example, to the case where the threshold for usage information is 75%. Furthermore, the display unit in the setting range bar 91 is not limited to percentages; it can also be lumens or other units.

[0192] Thus, setting range bar 91 only accepts input within the range below the threshold of usage information, and therefore cannot accept setting values ​​exceeding the threshold of usage information.

[0193] Following step S82, in step S83, the display device 20 accepts the request to change the setting value, similar to step S73. In response to accepting the request to change the setting value, in step S84, the display device 20 updates its setting value. Thus, the setting value becomes the value desired by the user. Although not illustrated, after step S84, the display device 20 may also display a screen indicating that the setting value has been changed. Furthermore, the display device 20 may also send the new setting value to the information processing device 10.

[0194] According to the above-described variation 7, it is possible to avoid inputting settings that are not suitable for the contract due to user error or other reasons.

[0195] Furthermore, in variation 7, Figure 20 The processing is performed by the display device 20. However, Figure 20 The processing can also be performed by the information processing device 10. In this case, the setting screen 80 and setting screen 90 are displayed, for example, on a display device provided with the information processing device 10. Alternatively, after step S84, the information processing device 10 may send the same setting value change request as in step S66 to the display device 20.

[0196] Those skilled in the art can add, modify, or delete constituent elements in any way in Embodiment 1 and its variations. For example, the information processing device 10 can be composed of multiple computers connected via a communication network.

[0197] (Postscript)

[0198] The following is a summary published in this note.

[0199] (Postscript 1)

[0200] A method for managing a display device includes: storing at least one of the first identification information and the second identification information, as well as usage information, by a first information processing device; connecting the first information processing device to a first display device via a communication network; sending the usage information to the first display device based on the first identification information or the second identification information by the first information processing device; and projecting a projected image by the first display device based on the usage information, wherein the first identification information is identification information representing the first display device, the second identification information is identification information representing the user of the first display device, the usage information is associated with at least one of the first identification information and the second identification information, and the usage information is information defining at least a portion of the usage mode that defines the functions of the first display device.

[0201] According to the management method in Appendix 1, the first display device projects a projected image based on information that defines at least a portion of the usage method of the function of the first display device, namely usage method information, thereby enabling the service desired by the user according to the contract to match the service actually provided by the display device.

[0202] (Postscript 2)

[0203] According to the management method of the display device described in Appendix 1, the storage includes: storing the third identification information in association with the usage information through the first information processing device; and storing the first identification information in association with the third identification information through the first information processing device, wherein the third identification information is identification information representing the installation device for setting the first display device in the usage space.

[0204] According to the management method in Appendix 2, the identification information indicating the installed appliance, i.e., the third identification information, is stored in association with the usage information, and the third identification information is stored in association with the first identification information. This reduces the setup workload for newly installed display devices when replacing a loaned display device. Specifically, by updating the first identification information associated with the third identification information, the first identification information can be associated with the usage information.

[0205] (Note 3)

[0206] According to the management method of the display device described in Appendix 1 or 2, wherein the usage information includes a first threshold as a threshold for the brightness of the first display device, and the method further includes: outputting first notification information through the first display device or the first information processing device when a measured value related to the brightness of the first display device is less than the first threshold.

[0207] According to the management method in Appendix 3, when the brightness of the display device decreases and becomes inconsistent with the usage information, the holder or user can be informed of the operation that requires changing the settings of the corresponding display device or replacing the display device by outputting the first notification message.

[0208] (Postscript 4)

[0209] The method for managing a display device according to any one of Appendices 1 to 3, wherein the usage information includes a second threshold as a threshold for the brightness of the first display device, and the method further includes: when a setting value related to the light source of the first display device exceeds the second threshold, changing the setting value to below the second threshold via the first display device.

[0210] According to the management method in Appendix 4, when there is an excess of a setting related to the brightness of the display device relative to the usage information, by changing the setting to an appropriate state, it is possible to match the service desired by the user under the contract with the service actually provided by the display device. For example, if the setting value becomes an excess value exceeding the contract due to user error, the setting value can be set to a value within the range of the contract.

[0211] (Note 5)

[0212] The method for managing a display device according to any one of Appendices 1 to 4, wherein the usage information includes a second threshold as a threshold for the brightness of the first display device, the method further includes: when the first display device or the first information processing device receives a change request for changing a setting value related to the light source of the first display device to a value exceeding the second threshold, the first display device or the first information processing device outputs information for rejecting the change request.

[0213] According to the management method in Appendix 5, if a request to change a setting value that does not conform to the usage information is accepted due to user error or other reasons, the change of setting value is rejected, thereby enabling the service desired by the user to match the service actually provided by the display device.

[0214] (Note 6)

[0215] The method for managing a display device according to any one of Appendices 1 to 5, wherein the usage information includes a second threshold as a threshold for the brightness of the first display device, and the method further includes: displaying a setting screen according to the second threshold via the first display device or the first information processing device.

[0216] According to the management method in Appendix 6, by displaying the setting screen according to the second threshold, it is possible to suppress the input of setting values ​​that do not conform to the usage information due to user misoperation, etc., and to match the service desired by the user with the service actually provided by the display device.

[0217] (Note 7)

[0218] A method for managing a display device includes: storing at least one of the first identification information and the second identification information by a first information processing device; connecting the first information processing device to a first display device and a second display device via a communication network; storing a first threshold as a threshold for the brightness of the first display device by the first information processing device; and prompting the second display device as an alternative candidate for the first display device when the first information processing device receives the second notification information related to the state of the first display device and the brightness of the second display device exceeds the first threshold, wherein the first identification information is identification information representing the first display device, the second identification information is identification information representing the user of the first display device, and the first threshold is associated with at least one of the first identification information and the second identification information.

[0219] According to the management method in Appendix 7, when a second notification message relating to the status of the first display device is received through the first information processing device and the brightness of the second display device exceeds the first threshold, the holder can reduce the burden of extracting a replacement candidate for the first display device by suggesting the second display device as a replacement candidate for the first display device.

[0220] (Note 8)

[0221] According to the management method of the display device described in Appendix 7, the method includes: storing a brightness threshold of the second display device through the first information processing device; and projecting a projected image through the second display device according to the brightness threshold of the second display device, wherein the brightness threshold of the second display device is equal to the value of the first threshold.

[0222] According to the management method in Appendix 8, the projected image is projected by the second display device based on a threshold of brightness of the second display device that is equal to the value of the first threshold, thereby enabling the service desired by the user under the contract to be matched with the service provided by the alternative machine.

[0223] (Note 9)

[0224] According to the management method of the display device described in Appendix 7 or 8, the second notification information includes information related to the abnormality of the first display device.

[0225] According to the management method in Appendix 9, the second notification information contains information related to the malfunction of the first display device, thereby enabling the holder of the display device to quickly obtain a replacement machine in the event of a malfunction in the lent display device. This mitigates the loss of opportunities to provide services.

[0226] (Postscript 10)

[0227] The management method of the display device according to any one of Annexes 7 to 9, wherein the second notification information includes information indicating that a measured value related to the brightness of the first display device is less than the first threshold.

[0228] According to the management method in Appendix 10, the second notification information includes information indicating that the measured value related to the brightness of the first display device is less than the first threshold, thereby enabling the owner of the display device to quickly provide a replacement device in the event of a decrease in the brightness of the display device. This improves user satisfaction.

[0229] (Postscript 11)

[0230] A display system includes a first information processing device and a first display device. The first information processing device stores at least one of the first identification information and the second identification information, as well as usage information. The first information processing device is connected to the first display device via a communication network. The first identification information is identification information representing the first display device, and the second identification information is identification information representing the user of the first display device. The usage information is associated with at least one of the first identification information and the second identification information, and is information defining at least a portion of the usage method that defines the function of the first display device. The first information processing device sends the usage information to the first display device based on the first identification information or the second identification information, and the first display device projects a projected image based on the usage information.

[0231] According to the display system in Appendix 11, there is a first display device that projects a projected image based on information defining at least a portion of the usage method of the function of the first display device, i.e., usage information, thereby enabling the service desired by the user under the contract to match the service actually provided by the display device.

[0232] (Postscript 12)

[0233] An information processing apparatus, wherein the information processing apparatus stores at least one of first identification information and second identification information, the information processing apparatus is connected to a first display device and a second display device via a communication network, the information processing apparatus stores a first threshold as a threshold for the brightness of the first display device, the first identification information is identification information representing the first display device, the second identification information is identification information representing the user of the first display device, the first threshold is associated with at least one of the first identification information and the second identification information, and the information processing apparatus prompts the second display device as an alternative candidate for the first display device when it receives second notification information related to the state of the first display device and the brightness of the second display device exceeds the first threshold.

[0234] According to the management method in Appendix 12, when the information processing device receives a second notification message relating to the state of the first display device and the brightness of the second display device exceeds a first threshold, the holder can reduce the burden of extracting a replacement candidate for the first display device by suggesting the second display device as a replacement candidate for the first display device.

Claims

1. A method for managing a display device, comprising: The first information processing device stores at least one of the first identification information and the second identification information, as well as usage information; The first information processing device is connected to the first display device via a communication network; The first information processing device sends the usage information to the first display device based on the first identification information or the second identification information; and The first display device projects a projected image according to the usage information. The first identification information is identification information representing the first display device. The second identification information is identification information representing the user of the first display device. The usage information is associated with at least one of the first identification information and the second identification information. The usage information is information that defines at least a portion of the usage methods that limit the functions of the first display device.

2. The management method for the display device according to claim 1, wherein, The storage includes: storing the third identification information in association with the usage information via the first information processing device; and storing the first identification information in association with the third identification information via the first information processing device. The third identification information is identification information of the installation device used to place the first display device in the usage space.

3. The management method for the display device according to claim 1 or 2, wherein, The usage information includes a first threshold value, which serves as a threshold for the brightness of the first display device. The method further includes: If the measured value related to the brightness of the first display device is less than the first threshold, the first notification information is output through the first display device or the first information processing device.

4. The management method for the display device according to claim 1 or 2, wherein, The usage information includes a second threshold, which serves as a threshold for the brightness of the first display device. The method further includes: If a setting value related to the light source of the first display device exceeds the second threshold, the first display device changes the setting value to below the second threshold.

5. The management method for the display device according to claim 1 or 2, wherein, The usage information includes a second threshold, which serves as a threshold for the brightness of the first display device. The method further includes: If the first display device or the first information processing device accepts a change request for changing a setting value related to the light source of the first display device to a value exceeding the second threshold, the first display device or the first information processing device outputs information for rejecting the change request.

6. The management method for the display device according to claim 1 or 2, wherein, The usage information includes a second threshold, which serves as a threshold for the brightness of the first display device. The method further includes: displaying a set screen according to the second threshold via the first display device or the first information processing device.

7. A method for managing a display device, comprising: The first information processing device stores at least one of the first identification information and the second identification information; The first information processing device is connected to the first display device and the second display device via a communication network; The first threshold value, which is stored by the first information processing device as a threshold value for the brightness of the first display device; as well as If the first information processing device receives a second notification related to the state of the first display device, and the brightness of the second display device exceeds the first threshold, the second display device is prompted as an alternative candidate to the first display device. The first identification information is identification information representing the first display device. The second identification information is identification information representing the user of the first display device. The first threshold is associated with at least one of the first identification information and the second identification information.

8. The management method for the display device according to claim 7, wherein, The method includes: The first information processing device stores the brightness threshold of the second display device; and The projected image is projected through the second display device according to the brightness threshold of the second display device. The brightness threshold of the second display device is equal to the value of the first threshold.

9. The management method for the display device according to claim 7 or 8, wherein, The second notification message contains information related to the malfunction of the first display device.

10. The management method for the display device according to claim 7 or 8, wherein, The second notification information includes information indicating that a measured value related to the brightness of the first display device is less than the first threshold.

11. A display system comprising a first information processing device and a first display device, The first information processing device stores at least one of first identification information and second identification information, as well as usage information, wherein, The first information processing device is connected to the first display device via a communication network. The first identification information is identification information representing the first display device. The second identification information is identification information representing the user of the first display device. The usage information is associated with at least one of the first identification information and the second identification information. The usage information is information that defines at least a portion of the usage methods that limit the functions of the first display device. The first information processing device sends the usage information to the first display device based on the first identification information or the second identification information. The first display device projects a projected image according to the usage information.

12. An information processing apparatus, wherein, The information processing device stores at least one of the first identification information and the second identification information. The information processing device is connected to the first display device and the second display device via a communication network. The information processing device stores a first threshold value, which serves as a threshold value for the brightness of the first display device. The first identification information is identification information representing the first display device. The second identification information is identification information representing the user of the first display device. The first threshold is associated with at least one of the first identification information and the second identification information. When the information processing device receives a second notification related to the state of the first display device and the brightness of the second display device exceeds the first threshold, it prompts the second display device as an alternative candidate for the first display device.

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