JP2007178745A - Projection type video display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a projection type video display device appropriately used in each of a plurality of operating circumstances by performing prescribed time control according to each of the plurality of operating circumstances. <P>SOLUTION: A projector 100 which projects a video to display on a screen sets any one of a plurality of use modes of the projector such as a lecture mode, a research presentation mode and a show mode, performs remaining time informing operation to inform of remaining time until a limited operating time is up in the lecture mode and the research presentation mode as time control operation to control operating time in the set use mode, and performs power supply stop operation to stop the supply of power to a projection part 12 from a power supply part 17 in the show mode. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a projection-type image display apparatus that projects an image and displays it on a screen or the like.

2. Description of the Related Art Conventionally, there is known a projection type image display device such as a projector that displays light on a screen by modulating light emitted from a light source by an optical element such as DMD and projecting the light through an optical lens.
This projection-type image display device is used, for example, when a plurality of presenters make a presentation (research presentation) according to a predetermined schedule at a research presentation, and in recent years, each presenter has its own restrictions. In order to make the announcement within time, it has been developed to display the current time, the elapsed presentation time, the remaining time, etc. along with the video on the screen (for example, see Patent Document 1). In addition, a projector that displays the current time, the announcement elapsed time, and the like using a liquid crystal display or a light emitting diode has been developed (see, for example, Patent Document 2).
By managing the time when using the projector as described above, there is an advantage that a time keeper is not necessary, and that the burden can be reduced when the presenter distributes the pace. is there.
JP 2001-109064 A JP 2004-294743 A

By the way, since the projection-type video display device is used in a predetermined lecture or screening that requires time management in addition to the above-described presentation, even in such a usage situation, the above-mentioned Patent Document 1 and Patent Document 2 are used. As described above, a projection-type image display apparatus capable of appropriately performing time management is desired.
It should be noted that providing a projection type video display device specialized for each use situation causes problems such as low productivity of the projection type video display device and poor convenience for the user.

  Accordingly, an object of the present invention is to perform a predetermined time management corresponding to each of a plurality of usage situations, thereby enabling a projection type video display that can be used appropriately in each of the plurality of usage situations. Is to provide a device.

In order to solve the above-mentioned problem, the invention described in claim 1
A projection-type image display device that includes a projection unit that projects an image, and that displays an image projected from the projection unit on a projection unit,
A power supply unit for supplying power to the projection unit;
Mode setting means for setting any one of a plurality of use modes of the projection display apparatus;
A time management operation executing means for executing a time management operation for managing a use time in the use mode according to the use mode set by the mode setting means,
The mode setting means includes
As the use mode, time limit use mode setting means for setting a time limit use mode that is required to be used within a time limit, and
As the use mode, comprising continuous use mode setting means for setting a continuous use mode that is used continuously for a predetermined time, and
The time management operation execution means includes:
Limit use time setting means for setting a limit use time in the time limit use mode set by the time limit use mode setting means;
Continuous use time setting means for setting continuous use time in the continuous use mode set by the continuous use mode setting means;
As the time management operation, a remaining time notification means for performing a remaining time notification operation for notifying the remaining time until the expiration of the limited use time set by the limit use time setting means,
The time limit use mode set by the time limit use mode setting means, and the time measuring means for measuring the use time since the use by the continuous use mode set by the continuous use mode setting means is started,
Notification time determination means for determining whether the use time measured by the time measurement means has passed the notification time of the remaining time that is a predetermined time before the limit use time;
A remaining time notification operation execution control means for causing the remaining time notification means to execute the remaining time notification operation when it is determined by the notification time determination means that the notification time has elapsed;
Whether or not use in the continuous use mode has ended based on whether or not the use time measured by the time measuring means has passed the continuous use time set by the continuous use time setting means End time determining means for determining whether or not
When it is determined by the end time determination means that the use in the continuous use mode has ended, a power supply stop operation for stopping power supply from the power supply unit to the projection unit is executed as the time management operation Power supply stop operation execution control means
The remaining time notification means includes:
It is characterized by comprising at least one of pronunciation notification means for notifying the remaining time with a predetermined pronunciation and remaining time display means for displaying the remaining time.

The invention described in claim 2
A projection-type image display device that projects an image and displays it on a projection means,
Mode setting means for setting any one of a plurality of use modes of the projection display apparatus;
Time management operation executing means for executing a time management operation for managing the use time in the use mode according to the use mode set by the mode setting means;
It is characterized by having.

The invention according to claim 3 is the projection type video display device according to claim 2,
The mode setting means includes time limit use mode setting means for setting a time limit use mode that is required to be used within a time limit as the use mode.
The time management operation execution means includes:
Limit use time setting means for setting a limit use time in the time limit use mode set by the time limit use mode setting means;
As the time management operation, a remaining time notification means for performing a remaining time notification operation for notifying the remaining time until the expiration of the limited use time set by the limit use time setting means,
Clocking means for timing the usage time since the use of the time limit usage mode set by the time limit usage mode setting means is started;
Notification time determination means for determining whether the use time measured by the time measurement means has passed the notification time of the remaining time that is a predetermined time before the limit use time;
A remaining time notification operation execution control means for causing the remaining time notification means to execute the remaining time notification operation when the notification time determination means determines that the notification time has elapsed. Yes.

According to a fourth aspect of the present invention, in the projection-type image display device according to the third aspect,
The time management operation execution means includes:
The actual use status information related to the actual use status after the elapse of a predetermined time after the start of use in the time limit use mode and the limit use time set by the limit use time setting means are assumed in advance. A progress state determining means for determining a progress state of use based on the assumed use state information relating to the use state after a predetermined time;
And a progress state notifying unit for notifying the progress state determined by the progress state determining unit.

The invention according to claim 5 is the projection type image display device according to claim 4,
The progress state notifying means includes a progress state color display notifying means for notifying the progress state by a predetermined color display.

Invention of Claim 6 is a projection type video display apparatus as described in any one of Claims 3-5.
The remaining time notifying means includes a sounding notifying means for notifying the remaining time with a predetermined pronunciation.

The invention according to claim 7 is the projection type image display device according to any one of claims 3 to 5,
The remaining time notification means includes remaining time display means for displaying the remaining time.

Invention of Claim 8 is a projection type video display apparatus as described in any one of Claims 3-5,
The remaining time notifying means includes a remaining time color display notifying means for notifying the remaining time by a predetermined color display.

The invention according to claim 9 is the projection type image display device according to claim 2,
A projection unit for projecting an image;
A power supply unit for supplying power to the projection unit,
The mode setting means includes a continuous use mode setting means for setting a continuous use mode that is used continuously for a predetermined time as the use mode,
The time management operation execution means includes:
Continuous use time setting means for setting continuous use time in the continuous use mode set by the continuous use mode setting means;
Clocking means for timing the usage time since the use of the continuous usage mode set by the continuous usage mode setting means is started;
Whether or not use in the continuous use mode has ended based on whether or not the use time measured by the time measuring means has passed the continuous use time set by the continuous use time setting means End time determining means for determining whether or not
When it is determined by the end time determination means that the use in the continuous use mode has ended, a power supply stop operation for stopping power supply from the power supply unit to the projection unit is executed as the time management operation And a power supply stop operation execution control means.

The invention according to claim 10 is the projection type image display device according to claim 2,
A projection unit for projecting an image;
A power supply unit for supplying power to the projection unit,
The mode setting means includes a continuous use mode setting means for setting a continuous use mode that is used continuously for a predetermined time as the use mode,
The time management operation execution means includes:
Whether or not the use in the continuous use mode has been completed based on whether or not substantially the same image is projected from the projection unit for a predetermined time in the continuous use mode set by the continuous use mode setting means. Automatic termination determination means for determining whether or not
When it is determined by the automatic end determination means that the use in the continuous use mode has ended, a power supply stop operation for stopping power supply from the power supply unit to the projection unit is executed as the time management operation Power supply stop operation execution control means.

According to the first aspect of the present invention, it is possible to set any one of a plurality of use modes and execute a time management operation for managing the use time in the use mode according to the set use mode. Therefore, it is possible to perform a predetermined time management corresponding to each of the plurality of usage situations, and thus it is possible to appropriately use each of the plurality of usage situations.
In other words, the usage time after the start of use in the time limit use mode is a predetermined time before the preset use time limit, and the notification time of the remaining time until the limit use time expires has passed. When it is determined that the notification time has passed, it is possible to execute the remaining time notification operation, so in the time limit use mode where use within the time limit is required, The user can appropriately distribute the pace according to the remaining time notified. Thus, time management in the time limit use mode can be appropriately performed.
Here, since the remaining time until the expiration of the limited use time can be notified with a predetermined pronunciation, it is possible to make the user more easily grasp the remaining time. In addition, since the remaining time until the limit use time expires can be displayed, the user can more easily grasp the remaining time. Furthermore, when displaying the remaining time, for example, compared with the case of notifying the remaining time by pronunciation, a projection more attractive to the user is less likely to be known to a third party other than the user. Type image display device can be provided.
Also, based on whether or not the usage time since the start of the use in the continuous use mode has exceeded the preset continuous use time, it is determined whether or not the use in the continuous use mode has ended. Then, when it is determined that the use in the continuous use mode has been completed, a power supply stop operation for stopping the power supply from the power supply unit to the projection unit can be executed. The power supply stop operation can be executed without performing a predetermined operation by itself, thereby stopping the power supply from the power supply unit to the projection unit. Therefore, time management in the continuous use mode can be appropriately performed.

  According to the second aspect of the present invention, it is possible to set any one of a plurality of use modes and execute a time management operation for managing the use time in the use mode according to the set use mode. Therefore, it is possible to perform a predetermined time management corresponding to each of the plurality of usage situations, and thus it is possible to appropriately use each of the plurality of usage situations.

  According to the third aspect of the present invention, it is possible to obtain the same effect as the second aspect of the invention. In particular, the usage time after the start of the use in the time limited usage mode is previously determined. It is determined whether the notification time has passed by determining whether or not the notification time of the remaining time until the expiration of the limit use time has passed, and a predetermined time before the set limit use time. The remaining time notification operation can be executed, so that the user can appropriately distribute the pace according to the remaining time notified in the time limit use mode in which use within the time limit is required. It becomes. Thus, time management in the time limit use mode can be appropriately performed.

  According to the invention described in claim 4, it is of course possible to obtain the same effect as that of the invention described in claim 3. In particular, the progress state of use in the time limited use mode is determined, and the progress state is determined. Since the notification can be made, in the time limit use mode, the user can appropriately distribute the pace according to the progress state, and the time management in the time limit use mode can be performed more appropriately.

  According to the fifth aspect of the present invention, it is possible to obtain the same effect as that of the fourth aspect of the invention, and in particular, since the progress state can be notified by a predetermined color display, the user can be notified. It is possible to make it easier for the third party other than the user to know that the progress state is being reported.

  According to the sixth aspect of the present invention, the same effect as that of the third to fifth aspects of the invention can be obtained. In particular, the remaining time until the expiration of the limited use time can be obtained with a predetermined pronunciation. Since the notification can be made, the remaining time can be more easily grasped by the user.

  According to the seventh aspect of the present invention, the same effect as the third to fifth aspects of the invention can be obtained, and in particular, the remaining time until the limit use time expires can be displayed. Therefore, it is possible to make the user grasp the remaining time more easily. In addition, for example, since there is less possibility that the remaining time is known to a third party other than the user as compared with the case where the remaining time is notified by pronunciation, a projection type image display device that is more attractive to the user is provided. be able to.

  According to the invention described in claim 8, it is natural that the same effect as that of the invention described in claims 3 to 5 can be obtained. In particular, the remaining time until the limit use time expires is displayed in a predetermined color. Therefore, it is possible to make the user more easily grasp the remaining time. In particular, it is possible to easily grasp the remaining time without paying attention to the number, as compared with the case of notifying the remaining time with a number.

  According to the ninth aspect of the invention, it is possible to obtain the same effect as the second aspect of the invention, and in particular, the usage time after the start of use in the continuous use mode is set in advance. If it is determined that the use of the continuous use mode has ended, based on whether or not the continuous use time has elapsed, and whether or not the use of the continuous use mode has ended. Since the power supply stop operation for stopping the power supply from the power supply unit to the projection unit can be executed, the user can execute the power supply stop operation without performing a predetermined operation after the continuous use time has elapsed. Thus, the power supply from the power supply unit to the projection unit is stopped. Therefore, time management in the continuous use mode can be appropriately performed.

According to the tenth aspect of the present invention, the same effect as that of the second aspect of the invention can be obtained. Particularly, in the continuous use mode, substantially the same image is projected for a predetermined time from the projection unit. Whether or not the use in the continuous use mode has been completed is determined based on whether or not the use in the continuous use mode has been completed. Since the power supply stop operation for stopping the power supply to the power supply can be executed, the power supply stop operation can be automatically executed at a predetermined timing without the user performing a predetermined operation after the continuous use time has elapsed. Thus, the power supply from the power supply unit to the projection unit is stopped. Therefore, time management in the continuous use mode can be appropriately performed.
Moreover, since it is not necessary to input the continuous use time in the continuous use mode in advance, the operation burden on the user can be further reduced, and a more attractive projection display apparatus can be provided.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

[Embodiment 1]
FIG. 1 is a perspective view illustrating a projector 100 according to a first embodiment, which is exemplified as a preferable example of a projection display apparatus to which the present invention is applied. FIG. 2 is a block diagram illustrating a main configuration of the projector 100. .
In FIG. 1, only the projector main body 1 is shown, and the remote controller 2 is not shown.

  The projector (projection display apparatus) 100 according to the first embodiment forms an image based on image data input from an external device (not shown) such as a personal computer or a video camera, and the image is provided in front. In order to remotely operate the projector main body 1 and the projector main body 1 as shown in FIGS. 1 and 2, specifically, an apparatus for projecting on a screen (projection means; not shown). Remote controller 2 ("remote controller; see FIG. 2").

First, the projector body 1 will be described.
The projector main body 1 includes an image input unit 11 that receives image data output from an external device, and a projection unit 12 that projects an image (video) on a screen based on the image data input via the image input unit 11. Transmitted from the remote controller 2, the operation unit 13 that performs various operations, the timer 14 that measures the usage time when the projector 100 is used, the remaining time notification unit 15 that notifies the remaining time until the use expires, and the like. A signal receiving unit 16 for receiving the received signal, a power source unit 17 for supplying power to each unit, a ROM 18, a RAM 19, a CPU 10, and the like.

For example, the image input unit 11 is electrically connected to an external device such as a personal computer or a video camera, and receives image data of a video output from the external device and projected on the screen by the projection unit 12. ing.
Further, when image data is input, the image input unit 11 outputs the image data to the CPU 10.

The projection unit 12 includes, for example, a light source lamp 121 that emits high-luminance light, a reflection mirror 122 that reflects light emitted from the light source lamp 121, and DMD (Digital Micromirror Device) 123 and an optical lens 124 through which the light reflected by the DMD 123 passes.
The light source lamp 121 is composed of, for example, a metal halide lamp, an ultrahigh pressure mercury lamp, or the like, and emits light optically modulated by the DMD 123.
For example, the DMD 123 functions as an optical modulation element that forms an optical image by modulating light incident from the light source lamp 121 and reflected by the reflection mirror 122 according to image information.
The optical lens 124 is constituted by, for example, a zoom lens or the like, and condenses the light (optical image) modulated by the DMD 123 and enlarges and projects it on a screen or the like.

  The operation unit 13 includes, for example, a mode setting switch 131 for setting any one of a plurality of use modes of the projector 100, a time setting switch 132 for setting a use time according to the set use mode, A remaining time notifying operation setting switch 133 for setting the remaining time liquid crystal display in the liquid crystal display unit 151 as the remaining time notifying operation and the chime sounding from the sound generating unit 152 is provided.

For example, the mode setting switch 131 is provided on the upper surface of the projector main body 1 and includes a lecture mode setting switch 13a for setting a lecture mode as a use mode, and a research presentation mode setting switch 13b for setting a research presentation mode. And a screening mode setting switch 13c for setting the screening mode (see FIG. 1).
Here, the lecture mode and the research presentation mode are use modes (time limited use mode) in which a lecture by a speaker within a limited time or a presentation by the presenter is required, a lecture mode setting switch 13a and a research presentation mode setting switch. 13b constitutes time limit use mode setting means.
The screening mode is, for example, a usage mode (continuous usage mode) in which video images related to movies are continuously projected for a predetermined time, and the screening mode setting switch 13c constitutes a continuous usage mode setting means.

The time setting switch 132 includes, for example, a predetermined switch for instructing to input an increase / decrease in the set time and for confirming the instructed time.
Specifically, the time setting switch 132 is set as a limited use time setting means when the lecture mode or the research presentation mode is set based on a predetermined operation of the lecture mode setting switch 13a or the research presentation mode setting switch 13b by the user. In addition, a limited use time for the lecture or research presentation is set.
Further, the time setting switch 132 is a continuous use time setting unit that sets a continuous use time defined based on the show time when the show mode is set based on a predetermined operation of the show mode setting switch 13c by the user. It is supposed to be set.

  The remaining time notifying operation setting switch 133 can set, for example, a remaining time notifying operation between the remaining time liquid crystal display on the liquid crystal display unit 151 and the chime sounding from the sounding unit 152 for each remaining time reporting time. Yes. That is, the setting of the remaining time notification operation based on the predetermined operation of the remaining time notification operation setting switch 133 can be performed, for example, when setting the limited use time based on the predetermined operation of the time setting switch 132. .

  The timer 14 includes, for example, a clock circuit as a clocking means, and clocks the usage time after the use in the lecture mode, the research presentation mode, and the screening mode is started.

A CPU (Central Processing Unit) 10 controls each part of the projector 100 in an integrated manner, reads various programs stored in the ROM 18, develops them in the work area of the RAM 19, and executes various processes according to the programs. It is like that.
Specifically, the CPU 10 performs the lecture mode and the research presentation according to the use mode such as the lecture mode, the research presentation mode, and the screening mode set by the mode setting switch 131 based on the execution of various programs read from the ROM 18. The execution of the time management operation for managing the usage time of the projector 100 in each use mode such as the remaining time notification operation (described later) by the remaining time notification unit 15 in the mode and the power supply stop operation (described later) in the screening mode is controlled. It has become. Here, as will be described later, the CPU 10 constitutes a time management operation execution means in cooperation with the timer 14, the remaining time notification unit 15, and the power supply unit 17.

  A RAM (Random Access Memory) 19 is, for example, a rewritable memory, and constitutes a storage area, a work area, and the like for programs and various data read from the ROM 18 under the control of the CPU 10.

A ROM (Read Only Memory) 18 is, for example, a data read-only memory, and stores various programs executed under the control of the CPU 10, data related to the processing of each program, and the like.
Specifically, the ROM 18 stores, for example, a notification time determination program 18a, a remaining time notification operation execution control program 18b, an end time determination program 18c, a power supply stop operation execution control program 18d, and the like.

The notification time determination program 18a, as a notification time determination means, notifies the CPU 10 of a lecture or research presentation in which the usage time of the projector 100 measured by the timer 14 is set based on a predetermined operation of the time setting switch 132 by the user. This is a program for realizing a function related to a notification time determination process for determining whether or not the notification time of the remaining time until the expiration of the time limit before the limit use time has elapsed.
Specifically, the usage time of the projector 100 measured by the timer 14 based on the execution of the notification time determination program 18a by the CPU 10 is 5 minutes before the expiration of the limited usage time in the lecture mode. In the research announcement mode, it is determined whether or not the notification time which is 10 minutes before and 5 minutes before the expiration of the limited use time has elapsed.
Note that the notification time may be configured to be changeable based on a predetermined operation of the operation unit 13, for example. This makes it possible to provide an attractive program 100 that can set the notification time more appropriately and flexibly according to the use mode.

The remaining time notification operation execution control program 18b serves as the remaining time notification operation execution control means for the CPU 10 when the notification time determination process determines that the usage time has passed the notification time. This is a program for realizing a function relating to a process of executing a remaining time notification operation for notifying the remaining time until the limit use time expires.
Specifically, based on the execution of the remaining time notification operation execution control program 18b by the CPU 10, the remaining time until the limit use time expires is displayed on the liquid crystal display unit 151 or until the limit use time expires on the sound generation unit 152. The remaining time is notified by chime pronunciation.

The end time determination program 18c causes the CPU 10 as the end time determination means that the use time of the projector 100 measured by the timer 14 has passed the continuous use time set in accordance with a predetermined operation of the time setting switch 132 by the user. This is a program for realizing a function related to an end time determination process for determining whether or not the use in the screening mode is ended based on whether or not the display mode is used.
Specifically, based on the execution of the end time determination program 18c by the CPU 10, it is determined that the use in the screening mode has ended when the set continuous use time has elapsed, and the use time When the continuous use time has not elapsed, it is determined that the use in the screening mode has not been completed yet.

The power supply stop operation execution control program 18d projects to the CPU 10 as a power supply stop operation execution control means from the power supply unit 17 when it is determined in the end time determination process that use in the continuous use mode has ended. 6 is a program for realizing a function related to a process of executing a power supply stop operation for stopping power supply to the unit 12.
Specifically, based on the execution of the power supply stop operation execution control program 18d by the CPU 10, when the end time determination process determines that the use in the continuous use mode has ended, the power supply unit 17 issues the program. The power supply to each part of 100 is stopped (power supply 0FF).

  The remaining time notifying unit 15 performs, as a remaining time notifying unit, a remaining time notifying operation for notifying the remaining time until the limited use time expires, specifically, a liquid crystal display for displaying the remaining time in a liquid crystal display. A unit (remaining time display means) 151, a sound generation unit (sound generation notification means) 152 for notifying the remaining time with a predetermined pronunciation.

  For example, the liquid crystal display unit 151 is provided behind the mode setting switch 131 on the upper surface of the projector main body 1, and is displayed on the display screen 15a having a substantially rectangular display screen 15a for displaying predetermined time information. And a reflection member 15b that reflects time information to the projection direction side (front side).

The reflecting member 15b is composed of, for example, a mirror, and is attached so as to be rotatable around an axis in the direction along the inner edge of the display screen 15a. Thereby, the time information displayed on the display screen 15a can be reflected to the projection direction side.
Note that the reflecting member 15b may be configured to cover the display screen 15a by being rotated toward the display screen 15a, and thus the display screen 15a can be appropriately protected. .

  In addition, the display screen 15a may be provided with a backlight (not shown), thereby appropriately viewing time information displayed on the display screen 15a even in a dark environment where image projection is performed. Will be able to.

  For example, the sound generation unit 152 generates a chime from a speaker based on predetermined sound data such as a chime.

  The signal reception unit 16 receives a predetermined signal transmitted from the signal transmission unit 23 of the remote controller 2. In addition, the signal receiving unit 16 outputs the received predetermined instruction signal to the CPU 10.

  The power supply unit (power supply unit) 17 supplies power to each unit constituting the projector body 1 under the control of the CPU 10.

Next, the remote controller 2 will be described.
The remote controller 2 includes a control unit 21, an operation switch 22 for performing a predetermined operation of the projector main body 1, a signal transmission unit 23 for transmitting a predetermined signal output based on the predetermined operation of the remote controller 2, and the like. Yes.

The control unit 21 includes, for example, a CPU 10, a memory, and the like, and comprehensively controls each unit of the remote controller 2.
For example, the signal transmission unit 23 is configured to transmit a predetermined instruction signal under the control of the control unit 21 based on a predetermined operation of the operation switch 22 by the user.

  Note that information communication between the remote controller 2 and the projector main body 1 may be performed by, for example, a wireless communication method or a wired communication method.

Next, a method for using the projector 100 will be described with reference to FIGS.
In the projector 100 of the present embodiment, first, after setting the use mode in the mode setting process (see FIG. 3), the process (see FIGS. 4 to 6) corresponding to the set use mode is performed. It has become.

First, the mode setting process will be described with reference to FIG.
Here, FIG. 3 is a flowchart showing an example of an operation related to the mode setting process by the projector 100.

As shown in FIG. 3, in the mode setting process, first, after the projector 100 is turned on, any one of the lecture mode setting switch 13a, the research presentation mode setting switch 13b, and the screening mode setting switch 13c by the user is selected. When the predetermined use mode is set based on the operation of the switch (step S1), the CPU 10 controls the display screen 15a of the liquid crystal display unit 151 based on the execution of the predetermined control program read from the ROM 18. Then, a predetermined time input screen corresponding to each use mode is displayed (step S2).
That is, the CPU 10 causes the display screen 15a to display an input screen for the limited use time of the lecture or research presentation in the lecture mode or the research presentation mode, and input the continuous use time in the screening mode. Display the screen.

  Then, when a predetermined time is input based on a predetermined operation of the time setting switch 132 by the user and the time is fixed (step S3; YES), the CPU 10 is based on execution of a predetermined control program read from the ROM 18. Then, the timer 14 is controlled to start measuring time (step S4).

  Subsequently, under the control of the CPU 10, each process is branched according to the use mode set in step S1 (step S5). That is, if the lecture mode process is set in step S1, the lecture mode process is executed (step S51). If the research presentation mode process is set, the research presentation mode process is executed. (Step S52) If the screening mode processing is set, the screening mode processing is executed (Step S53).

Next, the lecture mode process will be described with reference to FIG.
Here, FIG. 4 is a flowchart showing an example of an operation related to the lecture mode processing.

  As shown in FIG. 4, in the lecture mode process, the CPU 10 reads the notification time determination program 18a from the ROM 18 and develops it in the RAM 19, and is timed by the timer 14 based on the execution of the notification time determination program 18a. Notification time determination processing is performed to determine whether or not the usage time of the projector 100 has passed the notification time of the remaining time five minutes before the limited usage time of the lecture (step S511).

If it is determined that the remaining time notification time has passed (step S511; YES), the CPU 10 reads the remaining time notification operation execution control program 18b from the ROM 18 and develops it in the RAM 19, and this remaining time notification. Based on the execution of the action execution control program 18b, the sounding part 152 is 5 minutes before the limited use time depending on whether or not the sounding part 152 is instructed as a remaining time notification action. Or the liquid crystal display 151 displays 5 minutes before the limited use time.
That is, the CPU 10 determines whether or not the sound generation unit 152 is instructed to generate the chime as the remaining time notification operation (step S512). (Step S512; YES), the sounding unit 152 is controlled to sound a predetermined chime (Step S513). On the other hand, when the sounding of the chime is not instructed from the sounding unit 152 (Step S512; NO), Five minutes before the limited use time is displayed on the liquid crystal display unit 151 (step S514).
Thereby, the lecture mode process is terminated.

Next, the research presentation mode process will be described with reference to FIG.
Here, FIG. 5 is a flowchart showing an example of the operation related to the research presentation mode process.

  As shown in FIG. 5, in the research presentation mode process, the CPU 10 reads the notification time determination program 18a from the ROM 18 and develops it in the RAM 19, and based on the execution of the notification time determination program 18a, the CPU 14 measures the time. The notification time determination process is performed to determine whether or not the usage time of the projector 100 to be used has passed the notification time of the remaining time 10 minutes before the restricted use time of the research presentation (step S521).

If it is determined that the remaining time notification time has passed (step S521; YES), the CPU 10 reads the remaining time notification operation execution control program 18b from the ROM 18 and develops it in the RAM 19, and this remaining time notification is performed. Based on the execution of the operation execution control program 18b, the sound generation unit 152 generates a chime indicating that it is 10 minutes before the limited use time depending on whether or not the sound generation unit 152 is instructed to generate the chime. Alternatively, 10 minutes before the limited use time is displayed on the liquid crystal display unit 151.
That is, the CPU 10 determines whether or not the sound generation unit 152 is instructed to generate the chime as the remaining time notification operation (step S522). (Step S522; YES), the sounding unit 152 is controlled to sound a predetermined chime representing 10 minutes before the limited use time (Step S523), while the sounding unit 152 has not instructed the sounding of the chime (Step S522; NO), the liquid crystal display unit 151 is displayed 10 minutes before the limited use time (step S524).

  Subsequently, similarly to step S521, the CPU 10 determines that the usage time of the projector 100 measured by the timer 14 based on the execution of the notification time determination program 18a read from the ROM 18 is greater than the limited usage time of the research announcement. In addition, notification time determination processing is performed to determine whether or not the notification time of the remaining time five minutes before has elapsed (step S525).

If it is determined that the remaining time notification time has passed (step S525; YES), the CPU 10 reads the remaining time notification operation execution control program 18b read from the ROM 18 in the same manner as steps S522 to S524. Is determined whether or not the pronunciation of the chime is instructed from the pronunciation unit 152 (step S526). If the pronunciation of the chime is instructed from the pronunciation unit 152 (step S526; YES) ), The sounding unit 152 is controlled to sound a predetermined chime representing five minutes before the limited use time (step S527). On the other hand, if the sounding of the chime is not instructed from the sounding unit 152 (step S527) S526; NO), 5 minutes before the limited use time is displayed on the liquid crystal display 151 (step S528).
Thereby, the research presentation mode process is terminated.

Next, the screening mode process will be described with reference to FIG.
Here, FIG. 6 is a flowchart showing an example of the operation related to the screening mode process.

As shown in FIG. 6, in the screening mode process, the CPU 10 reads the end time determination program 18c from the ROM 18 and develops it in the RAM 19, and the timer 14 counts time based on the execution of the end time determination program 18c. An end time determination process is performed to determine whether or not the usage time of the projector 100 has exceeded the set continuous usage time (step S531).
If it is determined that the continuous use time has elapsed (step S531; YES), the CPU 10 reads the power supply stop operation execution control program 18d from the ROM 18 and develops it in the RAM 19, and executes this power supply stop operation. Based on the execution of the control program 18d, the power supply unit 17 is controlled to stop the power supply from the power supply unit 17 to each unit of the projector 100 (step S532).
Thereby, the screening mode processing is completed.

As described above, according to the projector 100 of the first embodiment, any one of a plurality of use modes such as the lecture mode, the research presentation mode, and the screening mode is set, and the use is performed according to the set use mode. Since the time management operation for managing the usage time in the mode can be executed, it is possible to perform a predetermined time management corresponding to each of the plurality of usage situations, and thereby each of the plurality of usage situations. Can be used properly.
That is, it is determined whether or not the usage time since the start of use in the lecture mode or the research presentation mode has passed the notification time of the remaining time until the expiration of the preset use time limit, and the notification time When it is determined that the time has passed, the remaining time notification operation can be executed, so in the lecture mode and research presentation mode that are required to be used within the time limit, according to the remaining time notified, Users will be able to distribute pace appropriately in lectures and research presentations. Thus, time management in the lecture mode and research presentation mode can be performed appropriately.
Here, since the remaining time can be notified from the sound generation unit 152 with a predetermined sound such as a chime, the remaining time can be more easily recognized by the user.
Further, since the remaining time can be displayed on the liquid crystal display unit 151, the remaining time can be more easily recognized by the user. At this time, for example, the remaining time is reported to a third party other than the user as compared with the case where the remaining time is notified by the sound generation from the sound generation unit 152, so that the projector 100 more attractive to the user. Can be provided.
Also, based on whether or not the usage time since the start of use in the screening mode has exceeded a preset continuous usage time, it is determined whether or not the use in the screening mode has ended. When it is determined that the use in the screening mode has ended, the power supply stopping operation for stopping the power supply from the power supply unit 17 to the projection unit 12 can be executed, so that the user himself / herself can perform the operation after the continuous use time has elapsed. The power supply stop operation can be executed without performing a predetermined operation, and thereby the power supply from the power supply unit 17 to the projection unit 12 is stopped. Therefore, time management in the screening mode can be performed appropriately.

[Embodiment 2]
Hereinafter, the projector 200 according to the second embodiment will be described with reference to FIGS.
Here, FIG. 7 is a perspective view showing the projector 200 according to the second embodiment, which is exemplified as a preferred example of the projection type video display apparatus to which the present invention is applied, and FIG. 8 is a block diagram showing the main configuration of the projector 200. FIG.
Note that, among the components constituting the projector 200 according to the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

The projector 200 according to the second embodiment performs a progress state determination process for determining the progress state of use in the lecture mode and the research presentation mode, and notifies the user of the progress state according to the determination result.
That is, the progress state determination program 18e stored in the ROM 218 is used as the progress state determination means for the CPU 10, and the actual use state related to the actual use state after a predetermined time has elapsed since the start of use in the lecture mode or the research presentation mode. Progress status determination process for determining the progress status of use based on information and assumed usage status information related to usage status after elapse of a predetermined time that is assumed in advance based on the limited usage time set by the time setting switch 132 It is a program for realizing the function concerning.
That is, for example, when performing rehearsal before a lecture or research presentation, presumed usage status information relating to image data projected from the projection unit 12 after a predetermined time has elapsed since the start of use is stored in a predetermined storage means such as the RAM 19. . Then, the CPU 10 determines the time during which the image data related to the assumed usage status information is actually projected from the projection unit 12 after the use in the lecture mode or the research presentation mode is started based on the execution of the progress state determination program 18e. Based on the acquired time information (actual usage status information) and assumed usage status information, image data that is projected from the projection unit 12 after a predetermined time has elapsed since the start of use is actually projected from the projection unit 12. The use progress state can be determined based on the magnitude of the deviation from the timing.

The projector 200 is a progress state LED display unit having a plurality of LEDs for notifying the progress state in a predetermined color display as a progress state notifying unit for notifying the use progress state determined in the progress state determination process. (Progress status color display notification means) 210 is provided.
The progress state LED display unit 210 is provided, for example, on the front surface of the projector main body 1 and emits LEDs of a predetermined color according to the progress state of use. In other words, when the actual progress state after a predetermined time has progressed from the assumed time (for example, 3 minutes earlier), the blue LED 21b is caused to emit light, and when the estimated time is almost as expected. The white LED 21w emits light, and if it is later than the expected time, the yellow LED 21y, the red LED 21r, etc. (for example, the yellow LED 21y is 5 minutes or longer if it is 2 minutes later). When it is late, the red LED 21r) emits light.
Note that the magnitude of the deviation between the time when the predetermined image data related to the determination of the progress state is actually projected and the time when the projection is assumed can be arbitrarily changed as appropriate. Thereby, the attractive projector 200 which can perform determination of a progress state more appropriately and more flexibly.
Can be provided.

Next, the progress state notification operation will be described by exemplifying the research presentation mode process.
FIG. 9 is a flowchart showing an example of an operation related to the research presentation mode processing by the projector 200.
The remaining time notification operation performed after the progress state notification operation is substantially the same as the remaining time notification operation according to the first embodiment, and a detailed description thereof will be omitted.
In addition, the assumed usage status information projected from the projection unit 12 10 minutes before and 5 minutes before the expiration of the limited usage time, which is the notification time of the remaining time, is stored in the RAM 19 or the like prior to the execution of the research presentation mode process. It shall be.

As shown in FIG. 9, under the control of the CPU 10, the execution of the research presentation mode process is started, and when the remaining time notification operation is performed 10 minutes before the expiration of the limited use time (steps S <b> 2521 to S <b> 2524), the CPU 10. Reads out the progress state determination program 18e from the ROM 18 and develops it in the RAM 19, and based on the execution of the progress state determination program 18e, obtains the time during which the image data related to the assumed usage status information is actually projected from the projection unit 12. Then, based on the magnitude of deviation from the timing at which the image data assumed to be projected from the projection unit 12 is actually projected from the projection unit 12 10 minutes before the remaining time, the use progress state is determined. A progress state determination process is performed (step S2525).
Subsequently, the CPU 10 controls the progress state LED display unit 210 according to the determination result of the progress state determination process to cause the LED of a predetermined color to emit light (step S2526).

Next, under the control of the CPU 10, after performing the remaining time notifying operation 5 minutes before the expiration of the limited use time (steps S2527 to S2530), similarly to steps S2521 to S2524, the use is performed as in step S2525. A progress state determination process for determining the progress state is performed (step S2531).
Subsequently, as in step S2526, the CPU 10 controls the progress state LED display unit 210 according to the determination result of the progress state determination process to cause the LED of a predetermined color to emit light (step S2532).
Thereby, the research presentation mode process is terminated.

As described above, according to the projector 200 of the second embodiment, the progress of use in the lecture mode and the research presentation mode can be determined and the progress state can be notified. Since the user can appropriately distribute the pace according to the state, the time management in the lecture mode and the research presentation mode can be performed more appropriately.
In addition, since the CPU 10 can control the progress LED display unit 210 to notify the progress using an LED that emits a predetermined color, the user can more easily grasp the progress. For third parties other than the user, it can be difficult to understand that the progress status is being reported.

  In the determination of the progress state, it is possible to store the assumed usage status information related to all image data projected according to the time schedule of the lecture or the research presentation, thereby determining the progress state. Can be performed more precisely.

In the first embodiment and the second embodiment, as the remaining time notification operation, the remaining time is displayed on the liquid crystal display unit 151 a predetermined time before the expiration of the limited use time or the chime is sounded from the sound generation unit 152. Although either one of the above is performed, both of these may be performed simultaneously.
Furthermore, although the remaining time is displayed on the liquid crystal display unit 151, the present invention is not limited to this. For example, the elapsed time from the start of use of the limited use time may be displayed.

<Modification 1>
In the projector 100 according to the first and second embodiments, after the continuous use time is set in advance in the screening mode process, the use time measured by the timer 14 is equal to the set continuous use time. Whether or not the use of the screening mode has ended is determined based on whether or not it has elapsed, but is not limited to this, and whether or not the use of the screening mode has ended is determined. You may make it determine automatically.
That is, in the projector 300 according to the first modification, as shown in FIG. 10, whether or not substantially the same image is projected from the projection unit 12 in the screening mode as the automatic end determination unit to the CPU 10 for a predetermined time. In other words, based on whether or not a substantially constant image signal relating to substantially the same video has been input to the image input unit 11, it is automatically determined whether or not the use of the screening mode has ended. An automatic end determination program 18 f for realizing a function related to the end determination process is stored in the ROM 18.
As a result, in the screening mode process, the automatic end determination process can be executed based on the execution of the automatic end determination program 18f under the control of the CPU 10, and the power supply is turned on according to the determination result of the automatic end determination process. The supply stop operation can be executed (see FIG. 6).

Therefore, according to the projector 300 of the first modification, the power supply stop operation can be automatically executed at a predetermined timing without performing a predetermined operation by the user himself / herself after the continuous use time has elapsed. The power supply from the unit 17 to the projection unit 12 is stopped. Therefore, time management in the screening mode can be performed more appropriately.
In addition, since it is not necessary to input the continuous use time in the screening mode in advance, it is possible to reduce the operation burden on the user and provide a more attractive projector 300.

<Modification 2>
Further, in the projector 400 according to the first embodiment and the above embodiments, the remaining time until the expiration of the limited use time is displayed on the liquid crystal display unit 151. However, the present invention is not limited to this. The remaining time may be notified by a predetermined color display.
That is, as shown in FIG. 11, a time LED display having a plurality of (for example, three) LEDs 41 for notifying the remaining time in a predetermined color display at a predetermined position (for example, the front surface of the main body) of the projector 400. (Notification remaining time color display notification means) 410 may be provided. For example, by increasing or decreasing the number of light emission of the LED 41 according to the length of the remaining time, that is, when the remaining time is 15 minutes, all three LEDs 41,. When 10 minutes is reached, two of the three LEDs 41 and 41 are caused to emit light. When the remaining time is five minutes, any one of the three LEDs 41 is caused to emit light. Thus, the remaining time can be properly notified.
Therefore, according to the projector 400 of the second modification, the remaining time until the limit use time expires can be notified by color display from the predetermined LED 41, so that the user can more easily grasp the remaining time. it can. In particular, it is possible to easily grasp the remaining time without paying attention to the number, as compared with the case of notifying the remaining time with a number.

  In the second modification, the remaining time is displayed based on the number of light emission of the LED 41. However, the present invention is not limited to this. For example, LEDs of different colors may be caused to emit light according to the remaining time. .

The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, the lecture mode and the research presentation mode are exemplified as the time limit use mode, and the screening mode is exemplified as the continuous use mode. However, these are examples, and are not limited thereto.
Furthermore, the arrangement positions of the progress LED display unit 210 and the time LED display unit 410 are merely examples, and are not limited to the above embodiment.

It is a perspective view which shows the projector of Embodiment 1 illustrated as a suitable example of the projection type video display apparatus to which this invention is applied. It is a block diagram which shows the principal part structure of the projector of FIG. 3 is a flowchart illustrating an example of an operation related to mode setting processing by the projector of FIG. 1. It is a flowchart which shows an example of the operation | movement which concerns on the lecture mode process by the projector of FIG. 3 is a flowchart illustrating an example of an operation related to research presentation mode processing by the projector of FIG. 1. 3 is a flowchart showing an example of an operation related to a screening mode process by the projector of FIG. 1. It is a perspective view which shows the projector of Embodiment 2 illustrated as a suitable example of the projection type video display apparatus to which this invention is applied. It is a block diagram which shows the principal part structure of the projector of FIG. It is a flowchart which shows an example of the operation | movement which concerns on the research presentation mode process by the projector of FIG. It is a block diagram which shows the principal part structure of the projector of the modification 1 which concerns on this invention. It is a perspective view which shows the projector of the modification 2 which concerns on this invention.

Explanation of symbols

100, 200, 300, 400 Projector (projection-type image display device)
12 Projection unit 13 Operation unit 131 Mode setting switch (mode setting means)
13a Lecture mode setting switch (Time limit use mode setting means)
13b Research presentation mode setting switch (Time limit use mode setting means)
13c Screening mode setting switch (continuous use mode setting means)
132 time setting switch (restricted use time setting means, continuous use time setting means)
14 Timer (time management operation execution means, time measurement means)
15 Remaining time notification unit (time management operation execution means, remaining time notification means)
151 Liquid crystal display (remaining time display means)
152 Pronunciation part (pronunciation notification means)
17 Power supply unit (time management operation execution means, power supply unit)
10 CPU (time management operation execution means, notification time determination means, remaining time notification operation execution control means, progress state determination means, end time determination means, power supply stop operation execution control means, automatic end determination means)
210 Progress LED display unit (progress status notification means, progress status color display notification means)
410 time LED display (remaining time color display notification means)

Claims (10)

A projection-type image display device that includes a projection unit that projects an image, and that displays an image projected from the projection unit on a projection unit,
A power supply unit for supplying power to the projection unit;
Mode setting means for setting any one of a plurality of use modes of the projection display apparatus;
A time management operation executing means for executing a time management operation for managing a use time in the use mode according to the use mode set by the mode setting means,
The mode setting means includes
As the use mode, time limit use mode setting means for setting a time limit use mode that is required to be used within a time limit, and
As the use mode, comprising continuous use mode setting means for setting a continuous use mode that is used continuously for a predetermined time, and
The time management operation execution means includes:
Limit use time setting means for setting a limit use time in the time limit use mode set by the time limit use mode setting means;
Continuous use time setting means for setting continuous use time in the continuous use mode set by the continuous use mode setting means;
As the time management operation, a remaining time notification means for performing a remaining time notification operation for notifying the remaining time until the expiration of the limited use time set by the limit use time setting means,
The time limit use mode set by the time limit use mode setting means, and the time measuring means for measuring the use time since the use by the continuous use mode set by the continuous use mode setting means is started,
Notification time determination means for determining whether the use time measured by the time measurement means has passed the notification time of the remaining time that is a predetermined time before the limit use time;
A remaining time notification operation execution control means for causing the remaining time notification means to execute the remaining time notification operation when it is determined by the notification time determination means that the notification time has elapsed;
Whether or not use in the continuous use mode has ended based on whether or not the use time measured by the time measuring means has passed the continuous use time set by the continuous use time setting means End time determining means for determining whether or not
When it is determined by the end time determination means that the use in the continuous use mode has ended, a power supply stop operation for stopping power supply from the power supply unit to the projection unit is executed as the time management operation Power supply stop operation execution control means
The remaining time notification means includes:
A projection-type image display device comprising: at least one of a pronunciation notification unit that notifies the remaining time with a predetermined pronunciation and a remaining time display unit that displays the remaining time. A projection-type image display device that projects an image and displays it on a projection means,
Mode setting means for setting any one of a plurality of use modes of the projection display apparatus;
Time management operation executing means for executing a time management operation for managing the use time in the use mode according to the use mode set by the mode setting means;
A projection-type image display device comprising: The mode setting means includes time limit use mode setting means for setting a time limit use mode that is required to be used within a time limit as the use mode.
The time management operation execution means includes:
Limit use time setting means for setting a limit use time in the time limit use mode set by the time limit use mode setting means;
As the time management operation, a remaining time notification means for performing a remaining time notification operation for notifying the remaining time until the expiration of the limited use time set by the limit use time setting means,
Clocking means for timing the usage time since the use of the time limit usage mode set by the time limit usage mode setting means is started;
Notification time determination means for determining whether the use time measured by the time measurement means has passed the notification time of the remaining time that is a predetermined time before the limit use time;
A remaining time notification operation execution control means for causing the remaining time notification means to execute the remaining time notification operation when it is determined by the notification time determination means that the notification time has elapsed. The projection type image display device according to claim 2. The time management operation execution means includes:
The actual use status information related to the actual use status after the elapse of a predetermined time after the start of use in the time limit use mode and the limit use time set by the limit use time setting means are assumed in advance. A progress state determining means for determining a progress state of use based on the assumed use state information relating to the use state after a predetermined time;
The projection type video display device according to claim 3, further comprising: a progress state notifying unit that notifies the progress state determined by the progress state determining unit.   5. The projection type image display device according to claim 4, wherein the progress state notifying unit includes a progress state color display notifying unit for notifying the progress state by a predetermined color display.   The projection-type image display device according to claim 3, wherein the remaining time notifying unit includes a sound generation notifying unit that notifies the remaining time with a predetermined pronunciation.   The projection type video display device according to claim 3, wherein the remaining time notification unit includes a remaining time display unit that displays the remaining time.   The projection type video display device according to any one of claims 3 to 5, wherein the remaining time notifying unit includes a remaining time color display notifying unit that notifies the remaining time by a predetermined color display. . A projection unit for projecting an image;
A power supply unit for supplying power to the projection unit,
The mode setting means includes a continuous use mode setting means for setting a continuous use mode that is used continuously for a predetermined time as the use mode,
The time management operation execution means includes:
Continuous use time setting means for setting continuous use time in the continuous use mode set by the continuous use mode setting means;
Clocking means for timing the usage time since the use of the continuous usage mode set by the continuous usage mode setting means is started;
Whether or not use in the continuous use mode has ended based on whether or not the use time measured by the time measuring means has passed the continuous use time set by the continuous use time setting means End time determining means for determining whether or not
When it is determined by the end time determination means that the use in the continuous use mode has ended, a power supply stop operation for stopping power supply from the power supply unit to the projection unit is executed as the time management operation The projection-type image display device according to claim 2, further comprising: a power supply stop operation execution control unit that performs the operation. A projection unit for projecting an image;
A power supply unit for supplying power to the projection unit,
The mode setting means includes a continuous use mode setting means for setting a continuous use mode that is used continuously for a predetermined time as the use mode,
The time management operation execution means includes:
Whether or not the use in the continuous use mode has been completed based on whether or not substantially the same image is projected from the projection unit for a predetermined time in the continuous use mode set by the continuous use mode setting means. Automatic termination determination means for determining whether or not
When it is determined by the automatic end determination means that the use in the continuous use mode has ended, a power supply stop operation for stopping power supply from the power supply unit to the projection unit is executed as the time management operation The projection-type image display apparatus according to claim 2, further comprising: a power supply stop operation execution control unit that causes the power supply stop operation to be performed.

Images