JP2000066646A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an image display device to perform rapid presentation by facilitating the carriage and installation work of necessary materials. SOLUTION: A memory card detection circuit 24 detects whether or not a memory card 2 is set to a memory card insertion port 23. When the setting of the memory card 2 is detected, a CPU part 18 stores image file data recorded at the oldest time of the memory card 2 by the reading operation by a memory card control circuit 25 in a memory card image memory 27 as the display data. A memory card display signal generating circuit 28 successively reads the display data from the memory card image memory 27, and generates the display signal. A display signal switching circuit 16 selects the display signal from the memory card display signal generating circuit 28, and supplies it to an image display part 17, and the image display part 17 displays the display signal on a screen 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video display device, and more particularly to a video display device connected to an electronic device and displaying data from the electronic device on a screen.

[0002]

2. Description of the Related Art Conventionally, a personal computer (hereinafter referred to as a personal computer) has been used in this type of video display device.
Presentation (hereinafter referred to as an electronic presentation) that is performed while operating digitized materials by displaying data (image data, text data, etc.) from the electronic device on a screen. It is used for

[0003] In this electronic presentation, a video display device and a personal computer or the like are connected to sequentially display target materials as images, which is more effective than a presentation using materials such as paper and OHP (overhead projector). It is commonly used for the purpose of giving a simple presentation.

That is, as shown in FIG. 7, an electronic device such as a personal computer 5 or a digital still camera 7 is connected to video input terminals 61 and 62 of a video display device 6 so that an image from the personal computer 5 or the digital still camera 7 can be displayed. Video display device 6
Is displayed on the screen 4.

[0005]

In the above-mentioned conventional image display apparatus, since a personal computer or the like is connected to be used for an electronic presentation, there is a problem that transporting and installing necessary equipment is troublesome. In general, necessary equipment such as a personal computer and a video display device is often transported to a place where a presentation is actually performed to perform a connection work, and this work is a burden.

In the conventional video display device, a series of operations before starting a presentation, such as starting up a personal computer, starting presentation software, and reading and displaying digitized materials, take time. There is a problem that can not be entered.

As a result, when a quick presentation is required at a place of visit or the like, or when a plurality of operators alternately perform different presentations with different materials, it takes time to start the presentation, and the presentation proceeds smoothly. Hindered.

It is therefore an object of the present invention to provide a video display device which can solve the above-mentioned problems, can easily carry and install necessary equipment, and can start a presentation quickly.

[0009]

A video display device according to the present invention is a video display device for displaying a video signal from a connected electronic device, and for reproducing and displaying image file data on a removable memory card. It has.

That is, the video display device of the present invention uses an electronic device such as a personal computer (hereinafter referred to as a personal computer) or the like to operate a digitized material while operating a presentation (hereinafter referred to as an electronic presentation). In such a case, the purpose is to improve the operability involved.

Generally, an electronic presentation is performed by connecting a personal computer and a video display device and operating the personal computer to sequentially display digitized materials on the video display device.

In the video display device of the present invention, a recording / reproducing device using a memory card is provided therein.
The image file data recorded on the memory card is reproduced and displayed so that an electronic presentation can be easily performed.

More specifically, a recording / reproducing device having a detachable memory card is built in the video display device so that a video signal can be supplied from a personal computer connected to a video input terminal of the video display device. A memory card is set in the memory card slot, and images to be sequentially displayed by operation of a personal computer are recorded as image file data on the memory card.

By repeating this operation, all the images of the materials necessary for the electronic presentation are recorded as image file data on the memory card, and the image file previously recorded on the memory card at the time of actually performing the electronic presentation. Display data sequentially.

The memory card reproduction function is configured to start reproduction and display of image file data only by setting a memory card on which image file data is recorded in a memory card insertion slot. When there are a plurality of image file data, by using a remote controller (external indicator) (hereinafter, referred to as a remote controller) or the like,
The next image file data can be easily reproduced and displayed.

Therefore, by previously recording all the images of the digitized material displayed on the image display device by operating the personal computer as image file data on the memory card, the electronic presentation can be actually performed. When performing, an electronic presentation can be easily performed simply by inserting a memory card without using a personal computer.

Further, since the memory card is a removable recording medium, if the video display device of the present invention is provided at a place where an electronic presentation is to be performed, the electronic presentation can be easily performed simply by carrying around the memory card. . Therefore, the necessary equipment can be easily transported and installed, and the presentation can be started quickly.

[0018]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a video display device according to one embodiment of the present invention. In the figure, a video display device (PJ: projector) 1 includes video input terminals 11 and 12, an input video signal processing circuit 13, an image memory 14, a display signal generation circuit 15, a display signal switching circuit 16, a video display Unit 17, CPU (central processing unit) unit 18, clock circuit 19, memory control circuit 20
, A remote controller (hereinafter referred to as a remote controller) receiving circuit 21 and a memory card recording / reproducing device 22.

The memory card recording / reproducing apparatus 22 includes a memory card insertion slot 23, a memory card detection circuit 24, a memory card control circuit 25, a pointer memory 26, a memory card image memory 27, and a memory card display signal generation circuit 28 It is composed of

The image display device 1 is a personal computer (hereinafter referred to as a personal computer) for operating electronic materials.
When a video signal is input from an electronic device such as 5, the video signal is enlarged and projected as an image on the screen 4 and displayed. Further, even when a video signal is input from a memory card 2 serving as a recording medium of image file data, the video display device 1 enlarges and displays the image file data as an image on the screen 4 in the same manner as described above.

A video signal supplied from the personal computer 5 is input to the video input terminals 11 and 12, and an input video signal processing circuit 13 converts the video signal supplied from the video input terminals 11 and 12 into A / D (analog / digital). ) Perform the conversion process. The image memory 14 stores the video signal digitized by the input signal processing circuit 13 as display data to be displayed and output.

A display signal generation circuit 15 sequentially reads out display data from the image memory 14 and generates a display signal as a video to be displayed and output. The memory card recording / reproducing device 22 records the display video on the memory card 2 as image file data, or reproduces and displays the image file data on the memory card 2.

The display signal switching circuit 16 switches the display signal supplied from the display signal generation circuit 15 and the memory card recording / reproducing device 22 to one of them as a final display signal. The video display unit 17 displays the display signal supplied from the display signal switching circuit 16 as a video.

The CPU 18 has program data incorporated therein, and controls each circuit of the video display device 1 using the control bus 101 and the data bus 102. Clock circuit 1
Reference numeral 9 includes a battery (not shown), which can operate even when the power of the video display device 1 is not turned on.
The current time is always detected.

The memory control circuit 20 controls the memory of the video display device 1. The remote control receiving circuit 21 receives code data from the remote control 3 operated by the operator, and outputs a received signal to the CPU unit 18.

The image display unit 17 generally includes a display device, an optical lens, a light source lamp, and the like (not shown), and the display device includes a liquid crystal or a DLP (Digital Light).
In many cases, a device such as tProcessing is used, and a mechanism for enlarging and projecting an image on a display device is displayed.

The memory card insertion slot 23 of the memory card recording / reproducing device 22 serves as an insertion slot when the memory card 2 is set. The memory card detection circuit 24 detects the setting of the memory card 2 into the memory card insertion slot 23. The memory card control circuit 25 controls reading and writing of data from and to the memory card 2 set in the memory card insertion slot 23.

The pointer memory 26 stores pointer data for displaying a pointer indicating a certain display area when reproducing and displaying image file data stored in the memory card 2. The memory card image memory 27 stores display data to be reproduced and displayed by reproducing image file data stored in the memory card 2.

The memory card display signal generation circuit 28 sequentially reads data stored in the pointer memory 26 and the memory card image memory 27, respectively, and generates a display signal to be displayed and output.

FIG. 2 is a block diagram showing a system configuration in a preparation stage before an electronic presentation using the video display device 1 according to one embodiment of the present invention, and FIG. 3 is a video display according to one embodiment of the present invention. FIG. 2 is a block diagram illustrating a system configuration of an electronic presentation using the device 1.

Referring to FIGS. 1 to 3, the operation of the video display apparatus 1 according to the embodiment of the present invention will be described as an operation in a preparation stage before performing an electronic presentation and an operation in actually performing an electronic presentation. And will be described separately. Further, it is assumed that digitized materials used in the electronic presentation are created at least in the personal computer 5.

In the preparation stage, the operator works by operating the personal computer 5 to display the digitized data on the image display device 1.
In this case, the display video to be used is repeatedly recorded on the memory card 2 as image file data.

A request from the operator to the video display device 1 is made by using the remote controller 3. The remote controller 3 transmits code data that changes according to a request from an operator, similarly to a general remote controller. The code data is transmitted to the CPU 18 via the remote control receiving circuit 21.

First, the operator connects the video output terminal 51 of the personal computer 5 to the video input terminal 12 of the video display device 1, and operates the personal computer 5 to display the digitized material on the screen 4 from the video display device 1. Perform the operation. As a result, a video signal from the personal computer 5 is supplied to the input video signal processing circuit 13 via the video input terminal 12 of the video display device 1.

The video signal is supplied to an input video signal processing circuit 13.
A / D conversion processing is performed, and an analog signal is sequentially converted into a digital signal. The digitalized video signals are sequentially stored in the image memory 14 as display data. Accordingly, the data stored in the image memory 14 is sequentially updated with the digitized display data of the video signal from the personal computer 5.

The display signal generation circuit 15 sequentially reads out the display data stored in the image memory 14, generates a display signal as a video to be displayed and outputs it, and supplies it to the display signal switching circuit 16. In this case, the display signal switching circuit 16 receives the instruction from the operator using the remote controller 3 or the like in advance, and the CPU 18 selects the display signal supplied from the display signal generation circuit 15 and supplies it to the video display unit 17. It is assumed that

Since the display signal switching circuit 16 supplies the selected display signal to the video display unit 17, the display video is enlarged and projected from the video display unit 17 to the screen 4.

Then, the operator looks at the image on the screen 4 and when the image desired to be used in the electronic presentation is displayed, the image displayed on the screen 4 is displayed on the screen 4 from the image display device 1 using the remote controller 3 or the like. An instruction is issued to record the data on the memory card 2 as data.

An instruction from the remote controller 3 or the like is transmitted through the remote control receiving circuit 21 to the CPU 18 as code data. Upon receiving an instruction from the remote controller 3 or the like, the CPU 18 records the display data stored in the image memory 14 as image file data in the memory card 2 by a writing operation of the memory card control circuit 25.

The recording method to the memory card 2 is desirably a file format which is stored in a general image file format and can be handled even in a general personal computer environment. In this embodiment, the recording format of the image file data is the most. Commonly used JPEG (Joint Photograph)
ic Experts Group) format.

When recording, the current time is obtained from the clock circuit 19, and the recording time is also recorded as image file data. The clock circuit 19 is the image display device 1
Even when the power is not turned on, the time can be counted by the battery.

Further, it is assumed that the image file data name is recorded with the image file data name automatically created so as to be unique in the memory card 2.

At this time, as long as there is a recordable area on the memory card 2, a plurality of image file data can be recorded on the memory card 2. At the time of recording, if the recordable area of the memory card 2 runs short, the area of the image file data recorded at the oldest time is overwritten and recorded.

Therefore, in the preparatory stage, every time a recording instruction is issued from the operator, the above-described operation is repeated, and as long as there is a storable area of the memory card 2,
All the images of the materials necessary for the electronic presentation can be recorded on the memory card 2 as image file data (see FIGS. 1 and 2).

Next, the operation when an electronic presentation is actually performed using the memory card 2 on which the necessary image file data is recorded will be described. The operator inserts the memory card 2 on which necessary image file data is recorded from the memory card insertion slot 23 into the video display device 1.
Set to.

In this case, the image file data of the memory card 2 may be in the JPEG format, and may be a JPEG image captured by a general digital still camera (not shown).
Another memory card or the like in which PEG image file data is recorded may be used.

The memory card detection circuit 24 detects that the memory card 2 has been set from the memory card
The information is transmitted to the PU unit 18. When the CPU unit 18 receives the notification from the memory card detection circuit 24, the reading operation by the memory card control circuit 25 causes the image file recorded at the oldest time among the image file data recorded on the memory card 2 to be read. The data is stored in the memory card image memory 27 as display data to be displayed and output.

The memory card display signal generation circuit 28 sequentially reads out the display data stored in the memory card image memory 27, generates a display signal as a video to be displayed and output, and supplies it to the display signal switching circuit 16. ing. At this time, the display signal switching circuit 16 selects the display signal supplied from the memory card display signal generation circuit 28 and supplies it to the video display unit 17 by the operator using the remote controller 3 or the like in advance. , Or when the memory card detection circuit 24 detects that the memory card 2 has been set, the switching has been performed.

The display signal switching circuit 16 supplies the selected display signal to the video display unit 17, so that the memory card 2
Is enlarged and projected from the video display unit 17 onto the screen 4 as a reproduced display video (see FIGS. 1 and 3).

The memory card display signal generation circuit 28
Thus, the stored data relating to the pointer display can be extracted from the pointer memory 26, and a display signal including the pointer display can be generated as an image to be output and displayed.

The pointer memory 26 stores pointer data such as pointer display information, position information, and bit map information from the CPU unit 18. The pointer display is changed by updating the pointer data so that the pointer display can be changed. Has become.

Thereafter, when the operator wants to display the next image file data, the operator transmits a request to the video display device 1 using the remote controller 6 or the like. Upon receiving a request to display the next image file data, the CPU 18 reads the image file data recorded next to the image file data being reproduced and displayed by the memory card control circuit 25 based on the recording time of the image file data. And updates the data stored in the memory card image memory 27 to display data to be read and displayed. By updating the data stored in the memory card image memory 27 in this manner, the image projected on the screen 4 can be changed.

FIG. 4 is a diagram showing the appearance of the remote controller 3 of FIG. 1, FIG. 5 is a diagram showing a list display image of image file data displayed on the screen 4 of FIG.
(A)-(c) is a figure which shows the pointer pattern displayed on the screen 4 of FIG.

In FIG. 4, the remote controller 3 has a “power” key 31, an “input switching” key 32, and a “list” key 33.
, A "display" key 34, a "delete" key 35, a "record" key 36, an "auto play" key 37, a "next" key 38, a "pointer" key 39, and a "previous" key. Key 40
, An “up” key 41, a “left” key 42, a “right” key 43, and a “down” key 44.

When any one of the above keys is pressed, the remote controller 3 outputs code data corresponding to the key. When receiving the code data from the remote controller 3, the remote control receiving circuit 21 transmits the code data to the CPU 18. The CPU 18 controls each circuit based on the code data from the remote control receiving circuit 21.

The “power” key 31 is a key for turning on and off the power of the video display device 1. The “input switching” key 32 is a key for selecting a video input signal to be displayed on the screen 4 by the video display device 1 from a plurality of video input signals. The “power” key 31 and the “input switching” key 32 are also used in a general video display device, and the video display device main body often has a button switch.

In the case of the video display apparatus 1 according to one embodiment of the present invention, the display signal switching circuit 1
6 is controlled, and the display signal supplied from the memory card display signal generation circuit 28 can be switched. For the keys other than the “power” key 31 and the “input switching” key 32, the display signal switching circuit 16 outputs the display signal supplied from the memory card display signal generation circuit 28 to the video display unit 17.
, Ie, when the image file data of the memory card 2 is reproduced and displayed.

With the "next" key 38, the image file data to be reproduced and displayed can be switched. However, when a plurality of image file data are not recorded on the memory card 2, the data becomes invalid. When the code data corresponding to the "next" key 38 is input, the CPU 18 reads the memory file recorded after the image file data being reproduced and displayed based on the recording time by the reading operation by the memory card control circuit 25. The image file data of the card 2 is read, and the data stored in the memory card image memory 27 is updated as display data to be displayed and output.

When the memory card 2 is inserted, the image file data with the oldest recording time is reproduced and displayed.
With the "next" key 38, the image file data to be reproduced and displayed can be switched in ascending order based on the recording time.

The "Previous" key 40 can switch the image file data to be reproduced and displayed in descending order based on the recording time, contrary to the operation of the "Next" key 38. CPU section 18
When the code data corresponding to the "Previous" key 40 is input, the memory card control circuit 25 reads the memory card 2 recorded before the image file data being reproduced and displayed based on the recording time by the reading operation. The image file data is read, and the data stored in the memory card image memory 27 is updated as display data to be displayed and output.

The "record" key 36 is used for the display signal switching circuit 16
Is effective when the display signal supplied from the display signal generation circuit 15 is selected. When the code data corresponding to the “record” key 36 is input, the CPU unit 18 converts the data stored in the image memory 14, which is the display data being displayed on the screen 4, as image file data by the writing operation of the memory card control circuit 25. The recording time is also recorded on the memory card 2 together. If the recordable area of the memory card 2 is insufficient, the area of the image file data recorded at the oldest time of the memory card 2 is overwritten and updated.

The “delete” key 35 can delete the image file data being reproduced and displayed from the memory card 2. When the code data corresponding to the “delete” key 35 is input, the CPU 18 deletes the image file data being reproduced and displayed from the memory card 2 by the writing operation of the memory card control circuit 25. When the deletion of the image file data is completed, the CPU 18 updates the data stored in the memory card image memory 27 so that the display of the video display device 1 becomes a blue screen so that the operator can recognize that the deletion has been performed. .

The "list" key 33 can arbitrarily switch image file data to be reproduced and displayed. As shown in FIG. 5, the operator can select the image file data to be displayed from the reduced images displayed in a matrix on the display image displayed on the screen 4 from the image display device 1. .

Although any number of image file data can be displayed simultaneously, in this embodiment, 16 reduced images are displayed as a list in a 4 × 4 matrix. C
The PU unit 18 creates reduced images for all 16 image file data in the order of the oldest recording time from all the image file data of the memory card 2 by a read operation by the memory card control circuit 25, and forms them in a 4 × 4 matrix. The data stored in the memory card image memory 27 is temporarily rewritten so that the reduced image is displayed.

As a result, the operator selects the reduced image of the image file data to be displayed using the up / down / left / right keys 41 to 44 while viewing the list of reduced images displayed on the screen 4 from the video display device 1. The CPU 18 changes the color around the selected reduced image following the up / down / left / right keys 41 to 44 so that the operator can recognize the selected image file data.

From the position where the image file data recorded at the oldest time is selected, the "up" key 41 and the "left" key 42 become invalid. Conversely, the "down" key 44 and the "right" key 43 become invalid from the position where the image file data recorded at the latest time is selected.

Therefore, in addition to the 16 image file data in which the reduced images are listed, the memory card 2
If there is image file data recorded in the list, the list display of the reduced images is updated as necessary, and the image file data to be selected is changed.

For example, in the case of displaying a list of reduced images for the first to sixteenth image file data, FIG.
When the operator operates the “Down” key 44 or the “Right” key 43 while the reduced image “P” at the lower right of the image file is selected, the 17th to 32nd image file data is reduced. The display is updated with the list of images. Conversely, in the case of displaying a list of reduced images for the 17th to 32nd image file data, the “up” key 41 or the “left” key with the reduced image “A” in the upper left of FIG. 5 being selected. When the operator operates the key 42, the display is updated with a list of reduced images for the first to sixteenth image file data.

By the above operation, it is possible to select any image file data for display switching without limiting the number of image file data. After the operator selects the reduced image corresponding to the image file data to be displayed, the operator operates the "list" key 33 again to reproduce and display the image file data corresponding to the selected reduced image. The CPU 18 reads the selected image file data of the memory card 2 by a reading operation by the memory card control circuit 25, and updates the data stored in the memory card image memory 27 as display data to be displayed and output.

When the "delete" key 35 is operated from the list displayed, the image file data corresponding to the selected reduced image is deleted from the memory card 2. C
The PU unit 18 deletes the image file data corresponding to the reduced image selected by the writing operation by the memory card control circuit 25 from the memory card 2.

Further, by operating the "display" key 34 from the state in which the list is displayed, the image file data corresponding to the selected reduced image can be excluded from the reproduction and display. That is, for the image file data excluded from the reproduction display target, the “next” key 38 or the “previous” key
Even if the key 40 is operated, the display is skipped and is not displayed for reproduction, and the reduced image is displayed with diagonal lines drawn on the list display (reduced images [C], [L], [M]), It is clear that it will not be done.

In this case, since the image file data is not deleted from the memory card 2, the “display” is again performed.
By operating the key 34, it is possible to return to the reproduction display target. The CPU unit 18 writes the flag information relating to the display corresponding to each image file data of the memory card 2 into a certain storage area of the memory card 2 by the writing operation of the memory card control circuit 25, thereby setting the display relating to the operator. The image file data is reproduced and displayed according to the flag information.

The "pointer" key 39 is shown in FIGS.
The pointer of the pattern as shown in (c) can be displayed. In this embodiment, two pointer patterns [FIG.
(B) and (c) are prepared in advance, but since the pointer pattern is prepared in the CPU unit 18, the pointer pattern can be increased as long as the memory capacity of the CPU unit 18 permits.

Normally, as shown in FIG. 6A, the pointer is not displayed. However, every time the "pointer" key 39 is operated, the state shown in FIG. The pointer pattern is changed from the pointer pattern shown in FIG. 6B to the pointer pattern shown in FIG.
The pointer pattern can be changed from the pointer pattern shown in (c) to the state shown in FIG. Also,
When the pointer is displayed, the display position of the pointer can be moved to a target display position by operating the up, down, left, and right keys 41 to 44.

The CPU 18 is a "pointer" of the remote controller 3.
When the key 39 is operated, the pattern data in the pointer memory 26 is updated with the pattern data corresponding to the operation, and when the up / down / left / right keys 41 to 44 are operated, the pointer memory 2 is updated.
6 is updated with the position data corresponding to the operation.
Since the memory card display signal generating circuit 28 extracts the data stored in the pointer memory 26 and generates a display signal including the pointer display, the CPU 18 updates the data stored in the pointer memory 26 by updating the stored data. The shape and position of the pointer display can be changed.

The "automatic reproduction" key 37 is a "next" key 38.
, The image file data to be automatically reproduced and displayed can be switched at regular intervals. The same operation as when the "next" key 38 described above is operated is automatically executed at regular intervals (hereinafter, referred to as automatic reproduction).

Once the "auto play" key 37 is operated,
From this state, automatic reproduction is started at intervals of 10 seconds. Each time the “auto play” key 37 is operated continuously, the interval is set to 1
Increases by 0 seconds. By operating a key other than the "automatic reproduction" key 37, the automatic reproduction is released.

When the "automatic reproduction" key 37 is operated, C
The PU unit 18 sets the clock circuit 19 so that an interrupt signal always enters from the clock circuit 19 at a constant interval. As the setting interval, a time required by the operator according to the number of operations of the “automatic reproduction” key 37 is set. The clock circuit 19 transmits an interrupt signal to the CPU 18 every time the set interval time elapses.

When the CPU section 18 receives the interrupt signal from the clock circuit 19, the memory card control circuit 25 reads the memory card 2 based on the recording time and the image file data being reproduced and displayed. The image data stored in the memory card image memory 27 is updated as the display data to be displayed and output.

Therefore, this operation is repeated every time the set interval time elapses. However, next to the image file data with the latest recording time, the image file data with the oldest recording time is set as the reproduction display target. When a key other than the “automatic reproduction” key 37 of the remote controller 3 is operated during the automatic reproduction, the CPU 18 controls the clock circuit 19 so that an interrupt signal generated at a constant interval from the clock circuit 19 is not generated. Set.

As described above, the means for recording the video such as the digitized material used for the electronic presentation or the like using the personal computer 5 on the memory card 2 as image file data in advance, and the means for recording the video on the memory card 2 By providing a means for reproducing and displaying image file data and a means for displaying a pointer on the screen 4 in the video display device 1, the personal computer 5 can be used in a place where an electronic presentation is actually performed, as in the related art. Not
You can give an electronic presentation.

For this reason, by carrying the memory card 2 on which the image file data is recorded, it is not necessary to carry the personal computer 5, so that the burden of carrying necessary equipment can be reduced, and installation work such as connection of the necessary equipment can be performed. Can be reduced.

Further, by simply inserting the removable memory card 2 into the memory card insertion slot 23 of the memory card recording / reproducing device 22 in the video display device 1, reproduction and display of image file data can be started immediately. Thus, the user can start the electronic presentation more quickly than when the personal computer 5 is used as in the related art.

For this reason, the memory card 2 is simply replaced when a rapid electronic presentation is required especially at a visiting place or when a plurality of operators alternately give different electronic presentations with different materials. You can immediately enter the electronic presentation.

Further, by adopting a circuit configuration that focuses only on displaying images, as compared with a circuit configuration having a wide range of applications such as the personal computer 5, a smooth electronic presentation can be performed by displaying images at high speed. For this reason, even in the case of digitized materials, smooth high-speed display can be performed particularly for materials that use a lot of images such as natural images.

Further, by reading and writing the flag information relating to the display on the memory card 2, it is possible to set the image file data to be displayed and the image file data not to be displayed in the memory card 2. For this reason, the image file data to be displayed can be properly used depending on the use scene.

On the other hand, by providing a means for reproducing and displaying image file data in an image file format generally adopted as a recording format by a digital still camera or the like, an image file of a memory card recorded by the digital still camera or the like is provided. Data and the like can be reproduced and displayed.

For this reason, a memory card reproducing device such as a digital still camera is connected and operated, and a memory card such as a digital still camera is simply set in the video display device 1 without worrying about the battery capacity. Playback display can be performed.

Further, the memory card 2 is stored in the video display device 1.
Is provided, means for automatically reproducing and displaying a plurality of image file data stored in the memory card 2 can be automatically reproduced and displayed. For this reason, if there is the video display device 1 and the memory card 2 on which the image file data is recorded, it is possible to display a storefront advertisement by video with a simple configuration.

In the conventional video display device, as shown in FIG. 7, it is necessary to connect a personal computer, a digital still camera, and the like. In the video display device 1 according to one embodiment of the present invention, the memory card 2 is recorded on the memory card. It is only necessary to set the device in the memory card insertion slot 23 of the playback device 22, and the number of equipment to be used is reduced, and the carrying and connection work of the equipment are reduced.

The memory card 2 is generally used as a recording medium for recording image file data which is small and lightweight and has excellent portability. The video of the digitized material is recorded in advance on the memory card 2 as image file data, and by sequentially reproducing and displaying the image file data, an electronic presentation having the same effect as in the related art is realized. .

In a preparation stage before the electronic presentation, a video signal is supplied from the personal computer 5 connected to the video input terminal 12 of the video display device 1 and the memory card 2 is inserted into the memory card insertion slot 23 at the same time. The operator operates the personal computer 5 in the same manner as in the prior art to sequentially display digitized materials on the screen 4 from the video display device 1 and set the video being displayed by the memory card recording function. Memory card 2
Is recorded as image file data.

By repeating this operation, all the images of the materials necessary for the electronic presentation can be recorded on the memory card 2 as image file data.
Therefore, in a scene where an electronic presentation is actually performed, the image file data previously recorded on the set memory card 2 is sequentially displayed by using the memory card reproducing function of the video display device 1 so that the electronic presentation is performed. It can be done easily and quickly.

In the memory card reproducing function, the reproduction and display of the image file data is started only by setting the memory card 2 on which the image file data is recorded in the memory card insertion slot 23. Further, when there are a plurality of image file data, the next image file data can be easily reproduced and displayed using the remote controller 3 or the like.

Therefore, by previously recording all the images of the digitized material displayed on the image display device by operating the personal computer 5 on the memory card 2 in advance as image file data, the actual In a scene where a presentation is made, an electronic presentation can be easily made simply by setting the memory card 2 without using the personal computer 5. In addition, since the memory card 2 is a removable recording medium, if the video display device 1 is located at a place where an electronic presentation is to be performed, the electronic presentation can be easily performed simply by carrying the memory card 2 around.

In the above-described embodiment of the present invention, the projector-type video display device 1 most commonly used as a video display device for an electronic presentation has been described. However, regardless of the type of the video display device, a television or a monitor may be used. The same effects as described above can be obtained by incorporating the memory card recording / reproducing device 22 even in a video display device such as the above.

Further, the image of the personal computer 5 supplied from the image input terminal 12 is recorded on the memory card 2 as an image data file. Even a video can be recorded on the memory card 2 as image file data.

If the recordable area is insufficient when recording the image file data on the memory card 2, the recording time is overwritten on the recording area of the oldest image file data. Is displayed, and the operator can delete other image file data, for example, so that recording cannot be performed unless a recordable area of the memory card 2 is secured.

Furthermore, the case where the JPEG format is used as the image file format to be recorded on the memory card 2 has been described, but several types of image file formats for recording are prepared so that the recorded image file data can be used for various purposes. However, means for allowing the operator to make a selection may be provided.

In addition to the above, the image file data of the memory card 2 is reproduced and displayed in JPEG format. However, several types of image files are recorded so that the image file data recorded by various devices can be reproduced and displayed. It is also possible to reproduce and display image file data in a file format.

The reproduction and display order is such that the reproduction and display are performed in the order of the oldest recording time. However, a means for editing the reproduction and display order is provided in a state where the reduced images of all the image file data are displayed in a list. Means for reproducing and displaying in an order according to the result may be provided.

The display signal switching circuit 16 switches the display signals supplied from the display signal generation circuit 15 and the memory card display signal generation circuit 28, respectively, so that
The display signal is supplied to the image display unit 17 by displaying the other display image within the range of one of the display images, forming a display signal for simultaneously displaying both display images. Can also.

Although the operator uses the remote controller 3 to specify the direction using the up / down / left / right keys 41 to 44, an input device such as a trackball may be used to further improve the operability.

The "Delete" key 36 deletes the specified image file data. However, if the "Delete" key 36 is continuously operated for a certain period of time, all the image file data in the memory card 2 will be deleted. You can also do so.

When the display data in the memory card image memory 27 is updated, means for changing the order of updating and the time difference may be provided to provide a display effect. Further, a means for reproducing sound data at the timing of updating the display data of the memory card image memory 27 may be provided.

The memory card 2 has been described as an example of a recording medium for image file data. However, in the case of a removable recording medium, the memory card control circuit 27 is replaced with a circuit capable of reading and writing the recording medium. The same effect can be obtained.

[0107]

As described above, according to the present invention, a video display device for displaying a video signal from a connected electronic device is provided with means for reproducing and displaying image file data of a removable memory card. This has the effect that the necessary equipment can be easily transported and installed, and the presentation can be started quickly.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a video display device according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a system configuration in a preparation stage before performing an electronic presentation using a video display device according to an embodiment of the present invention.

FIG. 3 is a block diagram showing a system configuration of an electronic presentation using a video display device according to an embodiment of the present invention.

FIG. 4 is a view showing the appearance of the remote controller of FIG. 1;

FIG. 5 is a diagram showing a list display image of image file data displayed on the screen of FIG. 1;

FIGS. 6A to 6C are diagrams showing pointer patterns displayed on the screen of FIG. 1;

FIG. 7 is a block diagram showing a system configuration of an electronic presentation using a conventional video display device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 video display device 2 memory card 3 remote controller 4 screen 5 personal computer 11, 12 video input terminal 13 input video signal processing circuit 14 image memory 15 display signal generation circuit 16 display signal switching circuit 17 video display unit 18 CPU unit 19 clock circuit Reference Signs List 20 memory control circuit 21 remote controller receiving circuit 22 memory card recording / reproducing device 23 memory card insertion slot 24 memory card detection circuit 25 memory card control circuit 26 pointer memory 27 memory card image memory 28 memory card display signal generation circuit

Claims (8)

[Claims] 1. A video display device for displaying a video signal from a connected electronic device, comprising: means for reproducing and displaying image file data recorded on a removable recording medium. apparatus. 2. A video display according to claim 1, further comprising means for recording the video being displayed on said recording medium as said image file data when a video signal from said electronic device is being displayed. apparatus. 3. The recording medium according to claim 2, wherein the means for recording the image file data on the recording medium records the recording time of the image file data together with the image file data on the recording medium. Video display device. 4. The apparatus according to claim 1, further comprising means for generating a video to be displayed based on the image file data recorded on the recording medium and a preset pointer pattern. Or a video display device as described above. 5. A detecting means for detecting the insertion of the recording medium, and a video to be displayed is generated based on the image file data read from the memory card when the detecting means detects the insertion of the recording medium. The image display device according to claim 1, further comprising a display unit. 6. The video display device according to claim 1, further comprising means for controlling to sequentially read and display the image file data on the recording medium. 7. The video display device according to claim 1, further comprising means for reproducing and displaying desired image file data in response to an instruction signal from an external indicator. 8. The image processing apparatus according to claim 1, further comprising a selection unit configured to select one of a video generated based on a video signal from the electronic device and a video generated based on image file data of the recording medium. 8. The image display device according to claim 1, wherein the image selected by the means is displayed.