JP5887806B2 - Image display device control method and image display device - Google Patents

Description

  The present invention relates to an image display device control method, an image display device, and the like, and more particularly to an image display device control method having a clock function, an image display device, and the like.

  Conventionally, in order for a user to use a projector for a long period of time, depending on the components of the projector, the components can be easily replaced. In particular, a lamp unit having a lamp as a light source part is likely to have a short life, and the price of the lamp unit itself is expensive. Therefore, the projector is equipped with a technology that allows the lamp unit to be replaced at an appropriate timing, and various technologies that enable a long-term comfortable use of such a projector have been proposed.

For example, Patent Document 1 discloses a technique that allows a lamp unit to be replaced in a new state when the lamp unit is replaced. Specifically, in Patent Document 1, in a lamp unit including a fuse that is configured to be blown during normal projection, fuse blowout control is performed so that the fuse can maintain a conductive state when a lighting test is performed. This technique is disclosed.
As a result, the user can replace the lamp unit with a new one with confidence.

Further, for example, Patent Document 2 discloses a technique that can notify an accurate replacement time of the lamp unit. Specifically, Patent Document 2 discloses a technique in which lamp lighting times are integrated for each installation state of a projector.
Thus, even when the lamp is lit in an installation state where proper cooling is not performed, it is possible to notify the exact lamp unit replacement time.

JP 2010-244699 A JP2011-75972A

  By the way, it is desirable to provide a user with an appropriate warranty service within a predetermined warranty period so that the projector can be used comfortably. Therefore, it is desirable for the provider of the guarantee service to know the start time of using the projector.

  However, the techniques disclosed in Patent Document 1 and Patent Document 2 are techniques for appropriately replacing components for the user. Therefore, even if the techniques disclosed in Patent Document 1 and Patent Document 2 are applied, an appropriate warranty service cannot be provided within the warranty period. This is a common problem not only for projectors but also for image display devices in general.

  The present invention has been made in view of the above technical problems. According to some aspects of the present invention, it is possible to provide an image display device control method, an image display device, and the like that can grasp a user's use start time.

  (1) According to the first aspect of the present invention, the control method of the image display device including a timekeeping unit having a clock function is the first start determination step for determining whether the start is the first start, and the first start determination step for the first time A time setting screen display step for displaying a time setting screen for setting the time of the timekeeping portion when it is determined to be activated, and after the time setting screen is displayed in the time setting screen display step, A first activation time stamp storing step for storing an initial activation time stamp corresponding to the time.

Here, the initial activation may mean, for example, that the image display device is shipped from the factory in a packaged state, then unpacked by the user, and turned on for the first time to be activated.
In this embodiment, the image display device is provided with a timer. In this image display device, it is determined whether or not it is the first activation described above, and when it is determined that the activation is the first activation, the time setting screen is displayed, and the first activation time corresponding to the time of the timekeeping unit only when the time setting screen is displayed is displayed. Store (set) the stamp.
Thereby, it becomes possible to grasp the use start time of the user of the image display apparatus. As a result, the guarantee service provider can provide an appropriate guarantee service within the guarantee period based on the use start time.

(2) In the control method of the image display device according to the second aspect of the present invention, in the first aspect, the image display device includes an operation unit that receives an input operation. In the initial activation time stamp storage step, In the time setting screen, when a time setting instruction is given by the operation unit, after setting the time after setting in the time measuring unit, an initial activation time stamp corresponding to the time of the time measuring unit is stored, When a time setting instruction is not given by the operation unit on the time setting screen, an initial activation time stamp corresponding to the time of the time measuring unit is stored.
According to this aspect, in addition to the above-described effect, the image display device can store the already set time or the time set by the user as the first time stamp at the first activation.

(3) In the control method for an image display apparatus according to the third aspect of the present invention, in the first aspect or the second aspect, the first activation determination step is changed after the time setting screen is displayed. The initial activation time stamp storage step stores the initial activation time stamp according to a second flag that is changed after the initial activation time stamp is set. .
In this aspect, the first flag for determining whether or not the first activation is performed and the second flag for determining whether or not the first activation time stamp is stored are used. By doing so, it becomes possible to grasp the use start time of the user of the image display device by simple flag processing.
In addition, by changing the first flag after the time setting screen is displayed and changing the second flag after the initial activation time stamp is set (stored), the above flag processing can be reliably performed. .

(4) In the control method of the image display device according to the fourth aspect of the present invention, in the third aspect, a flag initialization step of initializing the first flag by operating the third flag is performed. Including.
According to this aspect, since only the first flag is initialized among the first flag and the second flag by the third flag, even if the first flag is changed after the first activation, By operating the third flag, the time setting screen can be displayed after activation.
As a result, for example, even if the image display device needs to be repaired and the user leaves the user's hand and is brought to a repair center or the like, the user can set the time of the timekeeping section at the first activation after the repair. become. Therefore, the convenience of the image display device can be improved.

(5) According to a fifth aspect of the present invention, there is provided a control method for an image display device using the time set in the timekeeping unit in any one of the first to fourth aspects. A log update step of updating a replacement log of the component of the image display device;
According to this aspect, in addition to the above-described effects, the error log or the exchange log can be referred to and used for the analysis of the user's usage status and malfunction. For example, when the frequency of occurrence of high temperature abnormality is high during the day, it can be determined that the environment may exceed the usable range during the day.
This makes it possible to provide a more detailed guarantee service using the time of the timekeeping unit.

  (6) According to a sixth aspect of the present invention, the image display device displays an image corresponding to a clock unit having a clock function and a time setting screen for setting the time of the clock unit at the first activation. An image display unit, and an initial activation time stamp storage unit that stores an initial activation time stamp corresponding to the time of the time measuring unit after displaying the time setting screen.

In this aspect, the time display unit is provided in the image display device, and the time setting screen is displayed when it is determined that the image display device is activated for the first time. Then, after the time setting screen is displayed, the image display device stores the initial activation time stamp corresponding to the time of the time measuring unit in the initial activation time stamp storage unit. In other words, after the initial activation, the initial activation time stamp corresponding to the time of the timekeeping unit is stored in the initial activation time stamp storage unit only for the first time after the time setting screen is displayed.
As a result, it is possible to provide an image display device that can grasp the use start time of the user of the image display device. As a result, the guarantee service provider can provide an appropriate guarantee service within the guarantee period based on the use start time.

(7) In the image display device according to a seventh aspect of the present invention, in the sixth aspect, the image display unit is configured to set the time based on a first flag that is changed after the time setting screen is displayed. An image corresponding to the screen is displayed, and the initial activation time stamp storage unit stores the initial activation time stamp according to a second flag that is changed after the initial activation time stamp is set.
In this aspect, a first flag for determining whether or not it is the first activation and a second flag for determining whether or not to set the initial activation time stamp are used. By doing so, it is possible to provide an image display device capable of grasping the use start time of the user by simple flag processing. In addition, by changing the first flag after the time setting screen is displayed and changing the second flag after setting the initial activation time stamp, the above flag processing can be reliably performed.

(8) The image display device according to the eighth aspect of the present invention is the error log or the configuration of the image display device in the sixth aspect or the seventh aspect, using the time set in the timekeeping unit. A log update unit for updating the component replacement log is included.
According to this aspect, in addition to the above effects, it is possible to provide an image display device that can be used for analysis of user usage and problems by referring to an error log or an exchange log.
This makes it possible to provide a more detailed guarantee service using the time of the timekeeping unit.

The functional block diagram of the structural example of the image display apparatus which concerns on one Embodiment of this invention. FIG. 2 is a block diagram of a hardware configuration example of the projector according to the embodiment. FIG. 3 is an explanatory diagram of a flag storage unit in FIG. 2. FIG. 3 is an explanatory diagram of a log storage unit in FIG. 2. The figure which shows an example of the processing flow at the time of starting of the projector of FIG. The figure which shows an example of the time setting screen displayed in step S3 of FIG. FIG. 6 is a flowchart of an example of log processing when an error occurs in the projector according to the present embodiment. FIG. 5 is a flowchart of an example of log processing when a projector lamp is replaced in the embodiment. The figure which shows an example of the OSD menu screen for initializing the lamp time displayed by step S32 of FIG. The figure which shows an example of the error log in this embodiment, and an exchange log. The flowchart of the example of a process after the repair of the projector in this embodiment. FIG. 12A is a diagram illustrating an example of a sequence at the time of initial activation in a factory-shipped state. FIG. 12B is a diagram showing an example of a sequence at the second and subsequent startups after factory shipment. FIG. 13A is a diagram illustrating an example of a sequence at the first activation in a state after repair at the repair center. FIG. 13B is a diagram illustrating an example of a sequence at the second and subsequent startups after repair.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily indispensable configuration requirements for solving the problems of the present invention.

(Image display device)
FIG. 1 shows a functional block diagram of a configuration example of an image display apparatus according to an embodiment of the present invention.
The image display device 10 can include a real-time clock unit 20, an image display unit 30, an initial activation time stamp storage unit 40, a screen generation unit 50, a flag storage unit 60, and a log update unit 70. The image display device 10 displays an image based on an image signal supplied from an image signal supply device (not shown) or an image signal corresponding to the screen generated by the screen generation unit 50.

The real-time clock unit 20 has a clock function and is configured to be able to measure, set, and read time data of “year”, “month”, “day”, “hour”, “minute”, and “second”. Then, the timekeeping operation is performed with a built-in battery (not shown) attached. Here, the real-time clock unit 20 corresponds to a time measuring unit.
The image display unit 30 displays a time setting screen for setting the time of the real-time clock unit 20 when the image display device 10 is activated for the first time. Here, the first activation means that the image display apparatus is activated by turning on the power for the first time after the package is unpacked by the user after being shipped from the factory. That is, when the image display apparatus 10 is activated when the power is turned on for the first time by the user, the image display unit 30 displays a time setting screen.

The initial activation time stamp storage unit 40 stores the initial activation time stamp corresponding to the time of the real time clock unit 20 after displaying the time setting screen by the image display unit 30. The first activation time stamp is time data read from the real-time clock unit 20, for example.
The screen generator 50 generates a time setting screen for setting the time of the real-time clock unit 20. The screen generation unit 50 can read the time setting screen information stored in advance and generate a time setting screen. The time setting screen is a screen for asking the user whether or not to set the time of the real-time clock unit 20.

  The flag storage unit 60 stores an initial activation flag and a log clear flag. Each of the initial activation flag and the log clear flag is set to an initial value, and the flag state is changed at a predetermined timing. Based on the initial activation flag, the image display unit 30 switches between display and non-display of the time setting screen, and the initial activation time stamp storage unit 40 stores the initial activation time stamp. Specifically, the initial activation flag includes a time setting screen display flag (first flag) that is changed after the time setting screen is displayed and an initial activation time storage flag (second flag) that is changed after the initial activation time stamp is stored. Flag). The image display unit 30 displays an image corresponding to the time setting screen based on the time setting screen display flag. The initial activation time stamp storage unit 40 stores the initial activation time stamp according to the initial activation time storage flag.

  The log update unit 70 uses the time of the real-time clock unit 20 to update an error log that is history information of errors that occurred during the operation of the image display device 10 or a replacement log of component parts of the image display device 10. By operating the log clear flag stored in the flag storage unit 60, the error log and the exchange log are deleted.

  According to such an image display device 10, the initial activation time stamp corresponding to the time of the real-time clock unit 20 is stored (or set) only when the initial activation is performed. Therefore, it is possible to provide an image display apparatus that can accurately grasp the user's use start time. As a result, the guarantee service provider can provide an appropriate guarantee service within the guarantee period based on the use start time.

〔projector〕
Next, a specific configuration example and control example of the image display apparatus 10 of the present embodiment will be described.
FIG. 2 shows a block diagram of a hardware configuration example of a projector as the image display device 10 of the present embodiment. FIG. 2 shows a configuration example of a so-called liquid crystal projector.
FIG. 3 is an explanatory diagram of the flag storage unit 122 of FIG.
FIG. 4 is an explanatory diagram of the log storage unit 126 of FIG.

  The projector 100 includes a lamp 102, a lamp driving unit 104, a liquid crystal light valve 106, an image processing unit 108, and a liquid crystal panel driving unit 110. Further, the projector 100 includes a storage unit 120, a control unit 130, a real-time clock unit 132, an interface (InterFace: hereinafter referred to as I / F) unit 134, an operation unit 136, and a power supply unit 138. The image processing unit 108 includes an OSD (On-Screen Display) menu image generation unit (screen generation unit) 109. The storage unit 120 includes a flag storage unit 122, an initial activation time stamp storage unit 124, and a log storage unit 126. The image processing unit 108, the liquid crystal panel driving unit 110, the storage unit 120, the control unit 130, and the I / F unit 134 are connected via a bus BUS.

As illustrated in FIG. 3, the flag storage unit 122 stores an initial activation flag 150 and a log clear flag (third flag, F3) 160. The initial activation flag 150 includes a time setting screen display flag (first flag, F1) 151 and an initial activation time storage flag (second flag, F2) 152.
Further, the log storage unit 126 stores an error log 170 and a lamp replacement log 171 as shown in FIG.

  An image signal supply device 200 that supplies an image signal from the outside is connected to an external connection terminal (not shown) of the projector 100. The function of the image signal supply device 200 is realized by, for example, a personal computer (PC) or a video recorder. The image signal supply device 200 supplies, as an analog image signal VS, for example, an RGB signal representing a computer image of a PC or a composite signal from a video recorder or a television receiver to the projector 100. The analog image signal VS is input to the image processing unit 108.

As the lamp 102, for example, a high-pressure mercury lamp, a discharge lamp such as a metal halide lamp and a halogen lamp is used.
The lamp driving unit 104 includes an igniter circuit and a ballast circuit (not shown), and turns on and off the lamp 102. The igniter circuit applies a high voltage between the electrodes of the lamp 102 at the time of lighting, causes dielectric breakdown, and forms a discharge path. The ballast circuit stabilizes and maintains the arc discharge after the lamp is turned on.

  The image processing unit 108 performs known image processing on the analog image signal VS, and outputs the image signal DSc after the image processing to the liquid crystal panel driving unit 110. For example, the image processing unit 108 performs A / D conversion on the analog image signal VS, and performs gamma correction on the image signal after A / D conversion. Then, the image processing unit 108 performs color unevenness correction on the image signal after the gamma correction, performs D / A conversion, and outputs the image signal DSc to the liquid crystal panel driving unit 110.

  Further, the image processing unit 108 supplies an image signal corresponding to the OSD menu image generated by the OSD menu image generation unit 109 to the liquid crystal panel driving unit 110 instead of the image corresponding to the image signal from the image signal supply device 200. Can be output. Alternatively, the image processing unit 108 superimposes an image signal corresponding to the OSD menu image generated by the OSD menu image generation unit 109 on the liquid crystal panel driving unit 110 so as to overlap the image corresponding to the image signal from the image signal supply device 200. Can be output.

The liquid crystal panel driving unit 110 configures the liquid crystal light valve 106 based on the image signal from the image processing unit 108 and drives the liquid crystal panel provided for each color light.
In the liquid crystal light valve 106, the light emitted from the lamp 102 is separated into three primary color components composed of red light, blue light, and green light. The liquid crystal panel as the light modulation element provided for each color light is irradiated with the corresponding color light, and the liquid crystal light valve 106 modulates the color light according to the image signal, and then synthesizes and projects it on the screen SC. .

  The storage unit 120 has a program area for storing a program and a work area for temporarily storing work data of the program, and functions as a flag storage unit 122, an initial activation time stamp storage unit 124, and a log storage unit 126. Storage area. Such a function of the storage unit 120 may be configured by one or a plurality of storage devices. At least the flag storage unit 122, the initial activation time stamp storage unit 124, and the log storage unit 126 are configured from, for example, a non-volatile memory such as a flash memory or an EEPROM. The storage unit 120 stores various predetermined parameters necessary for displaying an image by the liquid crystal light valve 106.

  The control unit 130 includes a central processing unit (hereinafter referred to as a CPU), reads a program stored in a program area of the storage unit 120, and performs software processing corresponding to the program to perform a process of the image display device 10. Control each part.

  The real-time clock unit 132 has a clock function and is configured to be able to measure, set, and read time data of “year”, “month”, “day”, “hour”, “minute”, and “second”. Then, the timekeeping operation is performed with a built-in battery (not shown) attached. Setting and reading of the time data is performed by the control unit 130. The real time clock unit 132 may be connected to the bus BUS, and time data may be set via the bus BUS. In the real time clock unit 132, an arbitrary time is set in advance.

  An operation unit 136, a power supply unit 138, and a lamp driving unit 104 are connected to the I / F unit 134. The I / F unit 134 performs interface processing between the control unit 130 and each unit connected to the I / F unit 134. The operation unit 136, the power supply unit 138, and the lamp driving unit 104 connected to the I / F unit 134 are controlled by the control unit 130 via the I / F unit 134.

The operation unit 136 includes a plurality of operation switches (not shown), and the projector 100 can be operated by the plurality of switches. A similar operation can be performed by a remote controller (not shown), and the operation unit 136 can have a function of a reception unit that receives a transmission signal from the remote control. Thus, the operation unit 136 can accept an input operation by the user.
The power supply unit 138 converts the power from the external power source into a power format required for each unit of the projector 100 and supplies the power to each unit.

  In FIG. 2, the real-time clock unit 132 realizes the function of the real-time clock unit 20 of FIG. That is, the real time clock unit 132 corresponds to a time measuring unit. For example, the liquid crystal panel driving unit 110, the liquid crystal light valve 106, and the lamp 102 realize the function of the image display unit 30 in FIG. The first activation time stamp storage unit 124 realizes the function of the first activation time stamp storage unit 40 of FIG. The OSD menu image generation unit 109 realizes the function of the screen generation unit 50 of FIG. The flag storage unit 122 realizes the function of the flag storage unit 60 of FIG. The control unit 130 (or the control unit 130 and the storage unit 120) implements the function of the log update unit 70 in FIG.

FIG. 5 shows an example of a processing flow when the projector 100 of FIG. 2 is activated.
In the following, it is assumed that the time setting screen display flag (F1) is initially set to “0” and the initial activation time storage flag (F2) is initially set to “0” at the time of factory shipment.
FIG. 6 shows an example of the time setting screen displayed in step S3 of FIG.

  First, the projector 100 monitors the power-on in step S1, and when the power is turned on (step S1: Y), the time setting screen display flag F1 is set to “0” in the control unit 130 in step S2. Is determined. That is, in step S2, as a first activation determination step, the projector 100 determines whether or not the activation is the first activation based on the time setting screen display flag F1 in the control unit 130.

  When it is determined in step S2 that the time setting screen display flag F1 is “0”, that is, the time setting is not performed (step S2: Y), in step S3, the projector 100 is shown in FIG. The time setting screen is displayed. That is, in step S3, as a time setting screen display step, the projector 100 displays the time setting screen on the screen SC based on the image signal corresponding to the image of the time setting screen by the liquid crystal light valve 106 or the like. The image of the time setting screen is generated by the OSD menu image generation unit 109. On the other hand, when it is determined in step S2 that the time setting screen display flag F1 is not “0” (step S2: N), the process proceeds to step S11.

  On the time setting screen, a screen for prompting the real time clock unit 132 to instruct whether to newly set the time (“Yes” display button) or not (“No” display button) is displayed. Next, in step S4, it is determined whether or not time setting is executed. The user determines a selection candidate button by pressing an unillustrated determination key while moving between “Yes” or “No” buttons as selection candidates via the operation unit 136. When the “Yes” display button is selected and determined by the user's operation on the time setting screen and a time setting instruction is given (step S4: Y), in step S5, the control unit 130 sets the time after setting. Set in the real-time clock unit 132. In step S <b> 5, an input of a time to be set (for example, daylight saving time) is accepted according to a user instruction, and this time is set in the real-time clock unit 132. On the other hand, when there is an instruction not to perform time setting in step S4 (step S4: N), the process proceeds to step S6.

  In step S <b> 6, the projector 100 determines in the control unit 130 whether or not the initial activation time storage flag F <b> 2 is “0”.

  When it is determined that the initial activation time storage flag F2 is “0”, that is, it is the storage of the time setting in the initial activation (step S6: Y), in step 7, the control unit 130 determines the time of the real-time clock unit 132. Is stored in the initial activation time stamp storage unit 124. In step S <b> 7, the initial activation time stamp corresponding to the time of the real-time clock unit 132 is stored in the initial activation time stamp storage unit 124, thereby setting the initial activation time stamp. On the other hand, when it is determined in step S6 that the initial activation time storage flag F2 is not “0” (step S6: N), the process proceeds to step S9.

That is, in step S7, as the first activation time stamp storage step, the projector 100 stores (sets) the initial activation time stamp corresponding to the time of the real time clock unit 132 after displaying the time setting screen in step S3. . Specifically, in step S7, when a time setting instruction is given on the time setting screen, the projector 100 sets the time after setting in the real time clock unit 132 and then corresponds to the time of the real time clock unit 132. Set the first activation time stamp.
On the other hand, when no time setting instruction is given on the time setting screen in step S4, a first activation time stamp corresponding to the time of the real time clock unit 132 is set in step S7. As described above, in step S7, the initial activation time stamp corresponding to either the already set time of the real-time clock unit 132 or the set time of the real-time clock unit 132 is set according to the initial activation time storage flag F2. Is done.

  Next, in step S8, the control unit 130 sets the initial activation time storage flag F2 to “1”. That is, the initial activation time storage flag F2 is changed after the initial activation time stamp is set. Further, the initial activation time storage flag F2 being “1” indicates that the time storage at the initial activation of the projector 100 has been performed.

  Next, in step S9, the control unit 130 sets the time setting screen display flag F1 to “1”. That is, the time setting screen display flag F1 is changed after the time setting screen is displayed. Further, the time setting screen display flag F1 being “1” indicates that the time setting screen is displayed when the projector 100 is activated for the first time. Thereafter, the process proceeds to step S10.

  On the other hand, when it is determined in step S2 that the time setting screen display flag F1 is not 0 (step S2: N), in step S11, the control unit 130 determines whether or not the real-time clock unit 132 is out of battery. For example, the control unit 130 can determine whether the battery has run out by detecting the voltage of the battery in the real-time clock unit 132.

  When it is determined that the battery has run out (step S11: Y), in step S12, the control unit 130 notifies the battery running out by an indicator unit (not shown) via the I / F unit 134. On the other hand, when it is determined that the battery is not exhausted (step S11: N), the process proceeds to step S10.

Finally, in step S10, the projector 100 starts image display corresponding to the image signal from the image signal supply device 200.
Thereafter, the projector 100 ends a series of processing (end).

[Log processing]
As described above, the projector 100 that starts operation after activation records the time when an error occurs in the projector 100 or when the lamp is replaced, as a log, using the time of the real-time clock unit 132 during image display after the power is turned on. be able to.

  FIG. 7 shows a flowchart of an example of log processing when an error occurs in the projector 100 according to the present embodiment. In the program area of the storage unit 120, a program corresponding to each step of FIG. 7 is stored in advance, and the CPU configuring the control unit 130 reads the program from the storage unit 120 and executes processing corresponding to the program. By doing so, the processing of FIG. 7 is realized.

The control unit 130 monitors the occurrence of an error by detecting an error event in the projector 100, for example, during image display after power is turned on (step S20: N, return).
In step S20, when occurrence of an error is detected in the projector 100 (step S20: Y), in step S21, the control unit 130 associates the time of the real-time clock unit 132 at the time of error occurrence with the type of error occurrence. And stored in the log storage unit 126 as an error log.
Thereafter, the control unit 130 continues to monitor the occurrence of an error (return).

FIG. 8 shows a flowchart of an example of log processing at the time of lamp replacement of the projector 100 in the present embodiment. A program corresponding to each step in FIG. 8 is stored in the program area of the storage unit 120 in advance, and the CPU constituting the control unit 130 reads the program from the storage unit 120 and executes processing corresponding to the program. By doing so, the processing of FIG. 8 is realized.
FIG. 9 shows an example of an OSD menu screen for initializing the lamp time displayed in step S32 of FIG.

The lamp 102 has a built-in fuse, and the fuse is blown when the lamp is first turned on after the lamp is replaced. In step S30, the control unit 130 determines whether or not the first lighting after the lamp replacement has been performed by determining whether or not the fuse has been blown.
When it is determined in step S30 that the first lighting after the lamp replacement has been performed (step S30: Y), in step S31, the control unit 130 determines the time of the real-time clock unit 132 at the time of the first lighting after the lamp replacement. It is stored in the log storage unit 126 as an exchange log.
On the other hand, when it is determined in step S30 that the first lighting after the lamp replacement is not performed (step S30: N), in step S32, the control unit 130 displays the OSD menu screen shown in FIG. It is displayed and it is determined whether initialization of lamp time (lamp usage time) has been instructed.

When initialization of the ramp time is instructed in step S32 (step S32: Y), the process proceeds to step S31, where the control unit 130 initializes the ramp time and the time of the real-time clock unit 132 at the time of initialization. Is stored in the log storage unit 126 as a lamp replacement log.
When initialization of the lamp time is not instructed in step S31 or step S32 (step S32: N), the control unit 130 returns to step S30 (return).

  As described above, in step S21 of FIG. 7 or step S31 of FIG. 8, as the log update step, the projector 100 updates the error log or the replacement log of the lamp 102 of the projector 100 using the time of the real-time clock unit 132. can do.

FIG. 10 shows an example of the error log and the exchange log in the present embodiment.
For example, when the projector 100 is repaired due to a malfunction or the like at a repair center, a log screen as shown in FIG. 10 is displayed by performing a predetermined operation on the projector 100. In this log screen, the initial activation time (initial activation time stamp), the most recent predetermined number of lamp replacement times, the most recent predetermined number of error occurrence times, and the type of error are displayed.

As a result, the staff of the repair center can refer to the log screen and use it to analyze the user's usage status and defects. For example, when the frequency of occurrence of high temperature abnormality is high during the day, it can be determined that the environment may exceed the usable range during the day.
When the analysis is completed at the repair center and the corresponding repair is completed, the staff of the repair center performs the following process on the projector 100 after the repair.

FIG. 11 shows a flowchart of a processing example after repair of the projector 100 according to the present embodiment.
After power-on, the control unit 130 monitors whether or not the log clear flag F3 is set (step S40: N, return). For example, after the repair of the projector 100 is completed, the staff at the repair center gives an instruction to set the log clear flag F3 via the operation unit 136.

  In step S40, when the control unit 130 detects that the log clear flag F3 is set by the operation of the staff (step S40: Y), the control unit 130 deletes the error log stored in the storage unit 120 in step 41. In step S42, the lamp replacement log is deleted.

  Subsequently, in step S43, the control unit 130 initializes the time setting screen display flag F1 to “0”, and returns to step S40 (return). That is, in step S43, the projector 100 initializes the time setting screen display flag F1 by operating the log clear flag F3 as a flag initialization step.

[Startup sequence example]
In the projector 100 in which the above processing is performed, the sequence after startup at the time of factory shipment is different from the sequence after startup at the repair center.

  12A and 12B show an example of a startup sequence of the projector 100 at the time of factory shipment. FIG. 12A shows an example of a sequence at the time of initial activation in a factory-shipped state. FIG. 12B shows an example of a sequence at the second and subsequent startups after factory shipment.

  When the power is turned on in the factory default state (SQ1), the projector 100 displays the time setting screen (SQ2) because the time setting screen display flag is in the initial state. Thereafter, the projector 100 performs time setting in accordance with an instruction from the user who viewed the time setting screen, and sets a first activation time stamp corresponding to the time of the real-time clock unit 132 (SQ3). At this time, the time setting screen display flag is set to “1”. Then, the projector 100 starts normal display (SQ4).

  In contrast, when the first activation time stamp is set and the power is turned on for the second time and thereafter (SQ5), the time setting screen display flag is set to “1”. Normal display is started without displaying the screen (SQ6).

  FIGS. 13A and 13B show an example of a startup sequence of the projector 100 after repair. FIG. 13A shows an example of a sequence at the first activation in a state after repair at the repair center. FIG. 13B shows an example of a sequence at the second and subsequent startups after repair.

When the power is turned on in a state after repair at the repair center (SQ10), the projector 100 displays the time setting screen (SQ2) because the time setting screen display flag is in the initial state. At this time, the initial activation time storage flag is set to “1”. For this reason, the projector 100 performs time setting and the like in accordance with a user instruction on the time setting screen, but does not set the initial activation time stamp (SQ11). Thereafter, the time setting screen display flag is set to “1”. Then, the projector 100 starts normal display (SQ12).
On the other hand, when the power is turned on after the second time after repair (SQ13), since the time setting screen display flag is set to “1”, the projector 100 does not display the time setting screen. Normal display is started (SQ14).

  As described above, according to the present embodiment, the time setting screen is displayed only when the initial activation is performed, and the initial activation time stamp corresponding to the time of the real-time clock unit 20 can be set. Therefore, it is possible to provide a projector that can accurately grasp the use start time of the user based on the initial activation time stamp, and to provide an appropriate guarantee service within the guarantee period based on the use start time. become able to.

  As described above, the control method of the image display device, the image display device, and the like according to the present invention have been described based on the above embodiment, but the present invention is not limited to the above embodiment. The present invention can be implemented in various modes without departing from the gist thereof, and for example, the following modifications are possible.

  (1) In the above embodiment, the projector is described as an example of the image display device, but the present invention is not limited to this. Examples of the image display device according to the present invention include those that display images such as a projection TV, a liquid crystal TV, an in-vehicle liquid crystal display device, a notebook PC, a liquid crystal monitor, and a CRT.

  (2) In the above embodiment, a projector that projects an image using a transmissive liquid crystal panel as a light modulation element has been described as an example. However, the present invention is not limited to this. For example, a DMD (Digital Micromirror Device), a reflective liquid crystal panel, or the like may be employed as the light modulation element.

  (3) In the above-described embodiment, the projector lamp replacement log is described as an example of the component component replacement log of the image display device. However, the present invention is not limited to this.

  (4) In the above embodiment, the present invention has been described as a method for controlling an image display device, an image display device, and the like, but the present invention is not limited to this. For example, a program in which a processing procedure of a control method for an image display apparatus according to the present invention is described, and a recording medium on which the program is recorded may be used.

10: Image display device 20, 132: Real-time clock unit (RTC unit),
30: Image display unit 40, 124: Initial activation time stamp storage unit,
50 ... screen generation unit, 60, 122 ... flag storage unit, 70 ... log update unit,
100 ... projector, 102 ... lamp, 104 ... lamp driver,
106 ... Liquid crystal light valve, 108 ... Image processing unit,
109 ... OSD menu image generation unit, 110 ... Liquid crystal panel drive unit, 120 ... Storage unit,
126: Log storage unit, 130: Control unit, 134: I / F unit, 136: Operation unit,
138 ... Power supply unit, 150 ... First time activation flag,
151 ... Time setting screen display flag (first flag),
152 ... first activation time storage flag (second flag),
160: Log clear flag (third flag), 170: Error log,
171 ... Lamp replacement log, 200 ... Image signal supply device, BUS ... Bus,
SC ... Screen

Claims (5)

A method for controlling an image display device including a timekeeping unit having a clock function,
An initial activation determination step for determining whether or not it is the initial activation;
A time setting screen display step for displaying a time setting screen for setting the time of the timekeeping section when it is determined as the first activation in the initial activation determination step;
After displaying the time setting screen in the time setting screen display step, an initial activation time stamp storage step for storing an initial activation time stamp corresponding to the time of the timekeeping unit;
Only including,
The initial activation determination step determines whether or not it is the initial activation based on a first flag that is changed after the time setting screen is displayed;
The initial activation time stamp storage step stores the initial activation time stamp according to a second flag that is changed after the initial activation time stamp is set,
A control method for an image display device, comprising: a flag initialization step of initializing the first flag by operating a third flag . In claim 1,
The image display device includes an operation unit that receives an input operation,
In the initial activation time stamp storage step,
In the time setting screen, when a time setting instruction is given by the operation unit, after setting the time after setting in the time measuring unit, a first activation time stamp corresponding to the time of the time measuring unit is stored,
A method for controlling an image display device, comprising: storing an initial activation time stamp corresponding to the time of the timekeeping unit when no time setting instruction is given by the operation unit on the time setting screen. In claim 1 or 2 ,
A method for controlling an image display device, comprising: a log update step of updating an error log or a replacement log of a component of the image display device by using a time set in the time measuring unit. A timekeeping unit having a clock function;
An image display unit that displays an image corresponding to a time setting screen for setting the time of the timekeeping unit at the time of initial activation;
After displaying the time setting screen, an initial activation time stamp storage unit that stores an initial activation time stamp corresponding to the time of the timekeeping unit;
Only including,
The image display unit displays an image corresponding to the time setting screen based on a first flag that is changed after the time setting screen is displayed,
The initial activation time stamp storage unit stores the initial activation time stamp according to a second flag that is changed after the initial activation time stamp is set,
An image display device comprising: a control unit that initializes the first flag when it is detected that the third flag is set . In claim 4 ,
An image display device comprising: a log update unit that updates an error log or a replacement log of a component of the image display device using a time set in the time measuring unit.

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