JP2001134253A - Image display device having editing function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device having an editing function with good operability for presentation and the like. SOLUTION: The image display device is provided with an image projecting device which conducts projecting display of plural images on a screen, a coordinate detecting means which detects input position coordinates on the screen specified by a user and an image editing means which stores image signals inputted from plural systems into an image memory, conducts image editing on the image data stored in the memory based on image editing selection signals inputted by the user and the detected coordinate data by the coordinate detecting means and transmits the edited image data to the image projection device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device for projecting an image on a screen from the front or behind, and more particularly, to an image editing function for displaying a plurality of screens, an enlarged / reduced display, a strobe screen, and the like. The present invention relates to an image display device provided with:

[0002]

2. Description of the Related Art
As this type of image display device, for example, JP-A-6-30
A presentation system described in Japanese Patent No. 9127 is known. In this presentation system, a large monitor for spectators and a monitor with a touch panel for operation input for editing the displayed image are provided separately and independently, and input operations for directly instructing and selecting on the display screen of the large monitor Does not adopt a method of editing a display image. On the other hand, in a presentation in which a plurality of images are divided and displayed on a display screen, or when a specific image is selected from a plurality of images and enlarged and displayed, various explanations, presentations, and the like are performed. It is more convenient to perform the above-mentioned editing operations simultaneously while giving instructions.

[0003] In the present invention, the user is instructed to input an image actually displayed on the screen, the input position coordinates are detected by various coordinate detecting means, and the image is selected as an object to be edited. It is an object of the present invention to provide an image display device with an editing function that allows the user to recognize the fact and perform various editing operations such as enlargement / reduction.

[0004]

According to an aspect of the present invention, there is provided an image projection apparatus capable of projecting and displaying a plurality of images on a screen, and an image projection apparatus capable of projecting and displaying a plurality of images on a screen. Coordinate detecting means for detecting input position coordinates, and image signals input from a plurality of systems are stored in an image memory such as a frame memory, and image data (and a real-time input image) in the image memory are used as targets.
Image editing means for performing image editing based on an image editing selection signal input by a user and coordinate data detected by the coordinate detecting means, and sending the edited image data to the image projecting device. is there.

According to a second aspect of the present invention, in the image display device according to the first aspect, the coordinate detecting means includes an input position coordinate on a screen such as an optical emission type, an optical reflection type, and an optical matrix type, which will be described later. Are optically detected.

[0006] The invention described in claim 3 is claim 1 or 2.
In the image display device described in the above, the image editing means includes:
Image editing is performed based on an image editing selection signal for selecting one of a screen or a multi-screen display, a zoom display, and a strobe display including a moving image. here,
The moving image is included in all the editing modes described above.

According to a fourth aspect of the present invention, in the image display device according to the third aspect, of a plurality of images displayed on a screen using the image data after image editing, coordinate data detected by the coordinate detecting means. Wherein the image editing means performs image editing on image data of an image including That is, for example, in a case where a plurality of screens are divided and displayed on the screen, when the user inputs an instruction of one of the images, enlargement / reduction display of the image or replacement with another image is performed. To this end, the image editing means performs image editing.

According to a fifth aspect of the present invention, when the strobe display function of the third aspect is enabled, the image editing means inputs an instruction by a predetermined input operation (for example, a key input operation on an initial screen of the flash display). After the waiting, every time an instruction input for a moving image or a still image displayed on the screen is detected, the display image (moving image or still image) at each detection point is sequentially displayed on a part of the screen. The electronic camera has a strobe / store function for simultaneously displaying an original display image (a moving image or a still image targeted for instruction input) and an image at the time of instruction input on a screen.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 1 shows an appearance of an image display device 100 of the present embodiment, where 101 is a screen on which a projected image is displayed, and 102 is for the user to select various editing functions or to select the color of a pen when writing on a board. The console panel 103 is a display device main body. The display device main body 103 includes a rear projection type image projection device, a coordinate detection device for detecting the coordinates of a position instructed and input on the screen 101, a multi-screen display, an enlarged / reduced display, a strobe screen display, and the like. A built-in image editing device for realizing various image editing functions, various interfaces, a power supply circuit, and the like are included. The image projection device includes a light source lamp for image projection, an RGB filter, a DMD (digital micromirror device), a projection lens, and the like. here,
The DMD is an image projection element that controls the reflection angles of a large number of micromirrors on which light passing through the RGB filters is incident and the RGB filters in a time-sharing manner to obtain a desired color image on a screen.

FIG. 2 shows a computer 2 such as a personal computer or a workstation, if necessary.
00 shows an externally connected state. The image display apparatus 100 according to the present invention includes a plurality of image signal input terminals (video input terminals and RGB input terminals). Is projected and displayed, and various editing operations are performed on the image data. The computer 200 sends an image signal (R to be described later) to the image projection apparatus.
Are connected as one form of inputting a GB signal 1), and
It is used as one of pointing devices by an attached mouse or the like, and is not an essential component of the present invention.

When the computer 200 is connected as described above, it is possible to project and display the image on the screen 101 based on the image signal input from the computer 200, and to perform a board writing function of an electronic blackboard (a light-emitting electronic device described later). A coordinate input operation is performed on the screen using a coordinate input unit such as a pen, and the position coordinates are read by a coordinate detection device on the image display device side and sent to the computer 200 side, and the computer 200 side displays a corresponding image signal for display. Is generated and sent to the image display device side, and the trajectory of the input position is projected and displayed on the screen.

FIG. 3 is a block diagram showing a configuration of a main part of the image display device 100. As shown in FIG. In the figure, 1
Reference numeral 04 denotes a coordinate detection device that detects a position coordinate on the screen 101 input by the user directly instructing the screen 101. For example, the origin is set at the upper left of the effective area (4: 3 aspect ratio) of the screen 101. Coordinates (0, 0), 512 dots in the X direction from this origin, Y
Input position coordinates up to the end point coordinates (511, 383) of 384 dots in the direction are detected and output. Here, as the coordinate detecting device, when the screen is pressed by the tip of the pen, light is emitted, a light receiving element around the screen detects the pressed position, and an optical emission detection method that detects the pressed position as input position coordinates, a screen, An optical reflection method in which light emitted from one point in the surroundings is scanned by a polygon mirror or the like, and the reflected light is received by a pen or the like having a reflecting member to detect coordinates, and further, a light emitting element is provided on the front side of the screen, A large number of light paths combining light receiving elements are formed, and in addition to the optical matrix method of optically detecting the position where the light path is interrupted by the input pen, a touch panel or a sheet having a transparent electrode on a screen is pasted,
Various coordinate detecting means are conceivable, such as a pressure-sensitive method for detecting the coordinates of the pressing position by the input pen, and an ultrasonic method for transmitting the ultrasonic waves along the surface of the screen to detect the cutoff position of the ultrasonic waves by the input pen.

The coordinate detection signal sent from the coordinate detection device 104 is input to the first substrate 106 via a signal line 114. In addition to the coordinate detection signal, an on / off signal from the pen tray 105, a pen selection signal from the console panel 102, and an eraser selection signal are input to the first substrate 106. Note that the on / off signal from the pen tray 105 is a signal for detecting that the user has picked up the pen and then recognizing that a coordinate input operation is performed on the screen. The pen tray 105 and the pen on / off signal become unnecessary when an optical electronic pen using an optical emission detection method is used. The pen selection signal is a signal for recognizing the selection result of displaying the input trajectory in black or red when writing on the screen, and the eraser selection signal erases the information written on the board. This signal is for recognizing that the operation to be performed has been selected.

The first substrate 106 develops and calculates the signal form of the input coordinate detection signal, and these coordinate data are 8 bits × 6 bytes via the signal line 115 together with the pen selection signal and eraser selection signal. Is input to the second substrate 107 as the packet data. These packet data are stored in the second substrate 1 when the light source lamp 111 is turned off.
07 is not input. In this embodiment, FIG.
The effective area 101a on the screen 101 as shown in FIG.
(512 dots in the X direction, 384 dots in the Y direction) are divided into 16 equal parts. Then, the coordinate detection device 104 shown in FIG. 3 calculates the position coordinates within the range of (0, 0) to (511, 383) input by the coordinate input means such as an optical electronic pen for each of the X coordinate and the Y coordinate. The data is converted into 10-bit data and sent to the first substrate 106. On the first substrate 106 side, input data including parallel 10-bit coordinate data
The data is converted into bit × 6 byte packet data and sent to the second substrate 107. In the second substrate 107, the first substrate 1
Input coordinates based on the data sent from the address 06
It recognizes which of the 16 divided regions belongs to, and executes various image editing processes on the image data of the divided region to which the input position coordinates belong.

FIG. 5 is a view showing a state in which the first substrate 106 is moved to the second substrate 10.
FIG. 7 is a diagram showing the structure of 8-bit × 6-byte packet data sent to signal line 7 via signal line 115. The packet data includes the 10-bit data of each of the X coordinate and the Y coordinate. In FIG. 5, X0 to X9 are 1 of the X coordinate.
0-bit data, Y0 to Y9 are 10-bit data of the Y coordinate, PX is on / off data of the pen tray 105, Er
Aser indicates erase function selection data, Black indicates black pen selection data, Red indicates red pen selection data, and APP indicates unused.

Referring again to FIG. 3, the console panel 10
Reference numeral 2 denotes a switch button for generating the above-described pen selection signal and eraser selection signal, a switch button for selecting ON / OFF of the light source lamp 111, a two-screen display, a three-screen display, a four-screen display, a zoom display, and a strobe screen. A switch button for selecting an editing operation such as display, and a reset button are provided. An on / off selection signal for the light source lamp 111 and an image editing selection signal generated by operating the switch button for two-screen display, three-screen display, etc. Is input to the second substrate 107.

The second substrate 107 is the same as the first substrate 106 described above.
Together, they constitute a main part of the coordinate editing means in the present invention. Mainly, some of the video signals (video signals 1 and 2) and some of the RGB signals (RGB signals 1 and 2) (up to 4 Input) and an audio signal, coordinate data, a pen selection signal, and an eraser selection signal are input from the first substrate 106 through a signal line 115, and an on / off signal of the light source lamp 111 is input from the console panel 102. And an image editing selection signal. Here, the audio signal has a total of five inputs: an input signal from an independent microphone and an input signal from a sound source of each of four image signals (video signals 1 and 2 and RGB signals 1 and 2). The configuration and function of the second substrate 107 will be described later.

Reference numeral 108 denotes a projection device interface for connecting to an image projection device using a DMD, 109 denotes a monitor interface, and 110 denotes a light source lamp 111.
And a power supply unit for supplying power to the substrates 106 and 107, and 1
Reference numerals 12 and 113 denote speakers, 201 denotes a computer interface, and 202 denotes an 8 bit × 6 byte signal line.

Next, the configuration and function of the second substrate 107 will be described. The second substrate 107 performs digital signal processing on a plurality of systems of image signals, edits and processes these image data in accordance with an image edit selection signal from the console panel 102, and then processes the image projection device and the monitor interface 109. Of the video digitizer 13 shown in FIG.
The image signal digitized by the digital camera 4 is transferred to a frame memory 1 as an image memory via a video switcher 120.
The image data for display is output to an image projection device or a monitor by storing the data in the video output unit 135 and performing the desired editing processing by the selection superimposing unit 122 and then reading it out from the video output unit 135.

FIG. 6 shows the structure of the second substrate 107. The A / D converters 116 and 117 to which the video signals 1 and 2 and the RGB signals 1 and 2 are inputted, respectively, the decoder and the A / D converter 118. , 119, a video switcher 120 provided corresponding to these conversion units 116 to 119, and a frame memory 1
21, a selection superimposing unit 122, a video output unit 135,
An audio amplifier 128, a remote control light receiving unit 129,
Panel operation interface 130 and CPU 131
, A signal detection / PLL / input switching unit 132, and a timing generation unit 133. The selection superimposition unit 122 includes a selection superposition switch 123, a character drawing unit 124, and a priority control unit 125, and the video output unit 135 includes a buffer 126 and a D / A conversion unit 127. .

First, the CPU 131 processes and controls all signals. That is, the video digitizer 134
Is written to a predetermined address of the frame memory 121 via the video switcher 120, and the image is enlarged / reduced / replaced in accordance with an image edit selection signal from a panel operation interface 130 connected to the console panel 102. The audio amplifier 1 executes all the processing related to the editing processing of the audio amplifier 1 and performs the man-machine interface processing of the remote control light receiving section 129 for receiving the infrared signal sent from the external remote control apparatus, and the switching of the audio signal synchronized with the image signal.
28, and the like. In addition, the CPU 131
According to the synchronization state of the input image signal sent from the signal detection / PLL / input switching means 132, the most appropriate state is used for the subsequent signal processing according to the signal list stored in the CPU 131.

The video digitizer 134 has a total of four image signal inputs of two independent systems (RGB signals 1 and 2 and video signals 1 and 2) as described above.
The analog signals of the NTSC / PAL / SECAM / RS170 standard are converted into digital signals by A / D conversion units in the conversion units 116 to 119. Video digitizer 13
4 is connected to a signal detection / PLL / input switching means 132 having a PLL synthesizer, an input switching switch section, and the like.
It has a function of monitoring a synchronization signal (Sync) in order to automatically detect the image signal input to the CPU 34, and detects a synchronization state of the signal at regular intervals and notifies the CPU 131 of the detection.

The video switcher 120 includes a signal detection / PLL / input switching unit 132 and a CPU 1 from image signals digitized by the video digitizer 134.
31, the remote control light receiving unit 129, and the remote control device and the console panel 10 via the panel operation interface 130.
The switching operation is performed so as to select and input the image signal designated by 2.

The frame memory 121 enlarges / reduces (affine transforms) the image data selected by the video switcher 120 in accordance with an instruction from the CPU 131, and temporarily stores these image signals at predetermined addresses. It has an asynchronous address calculator for the system and the write system. The frame memory controller including the address calculation unit is not shown for convenience. The frame memory 121 has two independent systems of RGB signal system and two systems of video signal system, and performs synchronous / asynchronous operation depending on the display screen.
1 is controlled. These memories use an SDRAM of up to 8 Mbytes for each input system and an SDRAM of 16 Mbytes for strobes in order to store all screen information to be displayed.

The selection superimposing unit 122 includes a frame memory 12
1, the image data stored in the memories of the four systems are simultaneously read, and the image data of one of the four systems is selectively superimposed on the switch 1 according to the information designated by the CPU 131.
23 to select. Then, the image data is operated to be displayed at a predetermined position on the screen in accordance with the Sync signal from the timing generator 133. Also, this selective superimposing unit 1
When the CPU 131 does not select any of the four sets of image data, the CPU 22 forcibly selects and outputs blue in order to perform a so-called blue-back display. The character drawing unit 124 has a character bitmap format frame memory, and the CPU 131 can read and write character data. The priority control unit 125 controls the character data to be output with the highest priority, and controls the timing signal based on the display priority of each input image data.

The video output unit 135 has a buffer 126, stores image data and character data from the frame memory 121, and outputs the data to the image projection device. Therefore, the output of the buffer 126 is sent to the projection device interface 108 of FIG. Also, video output unit 1
35 includes a D / A conversion unit 127, which converts image data input from the frame memory 121 via the selection superimposition unit 122 into an analog signal according to the timing from the timing generation unit 133, and outputs the analog signal to an external monitor. I do.
Therefore, the output of the D / A converter 127 is sent to the monitor interface 109 in FIG.

The timing generator 133 includes a CPU 131
In accordance with the instructions from, instructions for the temporary storage area and the readout area of the frame memory 121 and instructions for the readout timing and the like for the frame memory 121, the selection superimposing unit 122, and the video output unit 135 are made.

The remote control light receiving section 129 has an infrared remote control light receiving section, converts an infrared signal sent from the remote control device into an electric signal, and sends it to the CPU 131. This remote control input signal is processed by the CPU 131 while keeping arbitration with the input signal from the panel operation interface 130.

The panel operation interface 130 includes:
The coordinate data from the first substrate 106 and the image editing selection signal from the console panel 102 are input, and the CPU 131 processes the input signal from the remote control light receiving unit 129 while maintaining arbitration. .

Further, the audio amplifier 128 has a CPU
In response to an instruction from 131, a plurality of audio signals are switched in synchronization with an image signal. In addition, it has a function of synthesizing a microphone input signal, and this synthesizing function is always valid.

Next, the operation of this embodiment will be described. FIG.
Are the two-screen display (FIG. 7A) in the present embodiment,
Screen display (FIG. 7 (b)), four-screen display (FIG. 7 (c)),
9 shows a screen configuration of a strobe screen display (FIG. 7D). These screens correspond to the divided areas a to p in FIG.
It is configured by a combination of

The outline of the operation of each screen display including one screen display will be described below. First, FIG. 8 is for explaining the basic concept of screen display.
In step 4, one or a plurality of input systems (two systems in the illustrated example) are selected, and the CPU 131 sets a desired enlargement or reduction ratio of the input image (the number of input pixels: the number of output pixels).
Is set. The number of frame memories 121 corresponds to the number of input systems (two in the illustrated example, 121a and 121b).
The selected image data is stored in a predetermined address of the frame memory by a frame memory controller (not shown), and the image data read from the frame memories is synthesized by the selection superimposing unit 122. Further, if necessary, character data is output from the frame memory 124a of the character drawing unit 124 and is synthesized with image data. The D / A converter 127 in the video output unit 135 converts the added data into an analog signal and outputs the analog signal.

(1) One-screen display operation In one-screen display, as shown in FIG. 9, one input system is selected by the video digitizer 134, and the enlargement or reduction ratio is set to the basic ratio by the CPU 131. Also, one frame memory (121a in the illustrated example) is selected to store image data, and the frame memory 1
The character data from 24a is added and output.

(2) Two-Screen Display Operation In the two-screen display, two input systems are selected by the video digitizer 134 as shown in FIG.
Sets the enlargement or reduction ratio to the basic ratio / 4. Further, there are also two frame memories (121a, 12a in the illustrated example).
1b) Image data is stored at a predetermined address after being selected, and the selection superimposing unit 122 outputs while switching signals of two frame memories. As described above, the character data from the frame memory 124a is added and output.

(3) Three-Screen Display Operation In the three-screen display, three input systems are selected by the video digitizer 134 as shown in FIG.
Sets the enlargement or reduction ratio to the basic ratio / 4. There are three frame memories (121a, 121b,
121c) Image data is stored at a predetermined address after being selected, and the selection superimposition unit 122 outputs signals of three frame memories while switching. As described above, the character data from the frame memory 124a is added and output.

(4) Four-Screen Display Operation In the four-screen display, as shown in FIG. 12, all four input systems are selected by the video digitizer 134, and the CPU 1
31 sets the enlargement or reduction ratio to the basic ratio / 4. All four frame memories (121a, 121b,
121c, 121d) are selected and the image data is stored at a predetermined address, and the selection superimposing unit 122 outputs while switching the signals of the four frame memories. As described above, the character data from the frame memory 124a is added and output.

(5) Strobe Screen Display Operation In the strobe screen display, as shown in FIG. 13, one input system is selected by the video digitizer 134, and 入 力 of the area of the effective area (nine areas e in FIG. 4). , F,
For a large screen (moving image plane) occupying g, i, j, k, m, n, and o, the CPU 131 sets the enlargement or reduction ratio to the basic ratio × (3/4). Also, two frame memories (121a and 121b in the illustrated example) are selected,
One is for a large screen, and the other is 1/16 of the effective area (seven areas a, b, c, d,
It is used for a sub-screen (save screen) occupying h, l, and p). However, the enlargement or reduction ratio for the child screen is the basic ratio. As the image data for the child screen, image data captured at a preset time interval is displayed as a still image as described later. The selection superimposing unit 122 combines the large-screen image data and the small-screen image data and outputs the combined image data.
Further, the strobe screen display operation includes a strobe / store display operation. For strobe / store display operation,
As will be described later, each time the user inputs an instruction for a moving image on the large screen, this function stores the display screen at that time as a still screen in the child screen area.

Next, each screen display function will be described in more detail. (1) Two-screen display function a. Activation Condition This function is activated when the corresponding switch button on the console panel 102 is pressed.

B. Function Monitors the sync of the input image signal and starts only when the input system has two inputs. At other times, it is determined that an error has occurred and the reception of the switch button is canceled. After the two-screen display, the following editing operation is accepted according to the input position coordinates by the optical electronic pen or the like on the screen. Here, for convenience, a case will be described in which an optical emission method is used as the coordinate detecting means and an optical electronic pen is used as the coordinate input means.

C. Operating Conditions The two-screen parallel display state (FIG. 7A) is set as an initial screen on the screen. In this state, the screen designated by the optical electronic pen is displayed in full screen (enlarged display), and the other screen is displayed in the sub-screen in the lower right 1/16 area (area p in FIG. 4) on the screen. (Reduced display). FIG. 14 (a)
It is a display screen at the time of instruction input of the part of "a" in FIG.7 (a). Here, the full screen display refers to a state in which a single image is displayed so as to cover the entire display area, and refers to a state in which there is no child screen in an active screen state.
Note that the active screen refers to a screen that is most prominently displayed in a single (including a blank screen) or a multi-screen display state (when a plurality of image signals are input). The inactive screen state refers to a screen which is not the active screen among the screens.

Next, when the screen displayed on the full screen is designated by the optical electronic pen, the child screen is erased and only the full screen is displayed. This is the state shown in FIG. 14B (full-screen display state), and at this time, it is in a state of accepting board writing with the optical electronic pen. That is, the trajectory of the electronic pen on the screen is sent from the second substrate 107 to the external computer 200 as coordinate data, and image data corresponding to the trajectory is generated and transmitted via the projection device interface 108 and the monitor interface 109. And sent to an image projection device or an external monitor, and displayed on the respective display screens. In addition, by instructing the small screen in the state of FIG. 14A, the screen displayed in the full screen and the small screen are switched. This is the state shown in FIG. However, in this case, the input system RGB1
Is connected to the computer 200 and the RS-
The operating condition is that the 232C computer interface 201 is connected.

In the above operation, the coordinate data of the instruction input by the optical electronic pen on the screen 101 is transferred to the second data via the coordinate detecting device 104 and the first substrate 106 shown in FIG.
After being sent to the substrate 107, it is sent to the CPU 131 via the panel operation interface 130 of FIG. CPU
At 131, the frame memory 121 storing the image data in which the coordinate data is stored is selected, and the selection superimposing unit 122 executes full-screen display, small-screen display (enlarged / reduced display), erasing processing, replacement processing, and the like.

D. Release condition The release condition of this function is that it is released when another menu button is pressed after the image data is latched. When an instruction is input in an area at the lower left of the screen (area m in FIG. 4) after activation of this function, the screen returns to the initial screen. e. Pressing the reset button on the reset console panel 102 returns to the initial screen.

(2) Three-screen display function a. Start condition Same as the two-screen display function.

B. Function Monitors the sync of the input image signal and starts only when the input system has three inputs. Otherwise, it determines that an error has occurred and cancels the acceptance of the switch button. After the three screens are displayed, the following editing operation is accepted according to the input position coordinates by the optical electronic pen on the screen.

C. Operating Conditions The three-screen diagonal display state (FIG. 7B) is set as the initial screen on the screen. First, when a screen other than the foreground display screen, that is, a screen of “I” or “U” in FIG. 7B is input by an optical electronic pen, these screens are activated and displayed on the foreground. You. At this time, there is no change in the position of each screen in the X and Y directions. FIG.
This is a case where the "I" part in (b) is input and displayed on the foreground. As for the foreground screen, the full screen is displayed when the instruction is input by the optical electronic pen, and the other two screens are each in the lower right area of each 1/16 area (areas o and p in FIG. 4).
Are displayed side-by-side on the sub screen. FIG. 15 (b) shows the state shown in FIG.
Enter and input the "A" part in to display the full screen,
"I" and "U" are displayed on the small screen. In this state, by instructing and inputting the part of "a" displayed on the full screen, the child screens of "i" and "u" are deleted and the full screen display of only "a" is performed (FIG. 15C). ). By inputting an instruction for a child screen in the state shown in FIG. 15B, the child screen and the screen displayed in full screen are switched. FIG. 15D shows “I” in FIG.
This is an example in which the child screen is input and replaced with the screen of “A”.

D. Release condition Same as the two-screen display function. e. Reset Same as the two-screen display function.

(3) Four-screen display function a. Start condition Same as the two-screen display function.

B. Function Monitors the sync of the input image signal and starts only when the input system has 4 inputs. Otherwise, it determines that an error has occurred and cancels the acceptance of the switch button. After the four-screen display, the following editing operation is accepted according to the input position coordinates by the optical electronic pen on the screen.

C. Operating Conditions The four-screen parallel display state (FIG. 7C) is set as the initial screen on the screen. In this initial state, the portion designated by the optical electronic pen is displayed on the full screen, and the other three screens are arranged in the lower right at each 1/16 area (areas n, o, and p in FIG. 4) and the child screen is displayed. indicate. FIG. 16 (a) shows an example in which the part "a" in FIG. 7 (c) is inputted and displayed on the full screen, and the other parts "i", "u" and "e" are displayed on the sub-screen. is there. In the state of FIG. 16 (a), by inputting the instruction of the part "a" of the full screen display, the child screens of "i", "u" and "e" are erased and the full screen display of only "a" is performed. (FIG. 16
(B)). In addition, by inputting an instruction of “e” of the sub-screen in the state of FIG.
And is replaced with the portion shown in FIG. 16 (c).

D. Release condition Same as the two-screen display function. e. Reset Same as the two-screen display function.

(4) Zoom function a. Start condition Same as the two-screen display function.

B. Function The switch button operation is enabled only when a single screen is displayed on the full screen. Otherwise, an error is made and the switch button operation is disabled.

C. Operating conditions The portion designated by the optical electronic pen is moved to the center of the screen to perform 2x zoom, and the same operation is repeated thereafter. The reading of the image data is performed at intervals of 2 seconds (the zoom operation and the unlatching operation are repeated after the input data is latched and read in a 2 second cycle). The zoom magnification is up to 16 times.

D. Release condition This function is released when another menu button is pressed after data latch. When there is no instruction input by the optical electronic pen for 5 seconds, the zoom function is stopped (screen holding) and no further instruction input is accepted.

E. Reset Same as the two-screen display function.

(5) Strobe screen display function a. Activation Condition This function is activated when the corresponding switch button on the console panel 102 is pressed. Simultaneously with the activation, the image data of all the input systems of the image signal are displayed on the four divided screens. Note that for a system with no input, the divided screen is set to a blank (blue back) state.

B. Function Fig. 17 shows the initial screen of the flash screen display.
Virtual input keys K1 ~
K5 is displayed. Of these virtual input keys, K1 to K4 are keys for setting image data capture time intervals, and are respectively 0.1 second, 0.5 second, 1.0 second,
There are four stages of every 2.0 seconds. These time intervals are
It can be set arbitrarily. The key of K5 is used for strobe / store display described later. In the four-screen display state, the operation is started when a screen of any input system is designated, and the nine areas e, f, g, i, j, and
The moving image of the selected input system is displayed in the portion consisting of k, m, n, and o, and the moving image is sampled at any time interval set by the virtual input key, thereby obtaining the seven moving images of FIG. Areas a, b, c, d, h, l, p
Still images are displayed sequentially on the child screens. FIG. 7 shows a state where these one moving image plane and seven still screens are displayed.
(D).

C. Operating Conditions In the state of FIG. 7D, by selecting an arbitrary child screen and inputting an instruction, the screen is displayed in a moving image plane area (nine areas e, f, g, i, j, k, m, n). , O) is enlarged and displayed as a still image. At this time, the moving image plane that has been displayed is replaced with the position of the selected child screen, and is subsequently displayed as a moving image.

D. Release condition This function is released when another menu button is pressed after data latch. If there is no instruction input for 20 seconds in the state of waiting for an instruction input of one of the four screens while displaying four screens, this function is invalidated and the screen returns to the initial screen.

E. Reset Same as the two-screen display function.

(6) Strobe / Store Display Function When the virtual input key K5 is selected on the initial screen of the strobe display (FIG. 17), the selection of the strobe / store display function is completed, and the apparatus is in a state of waiting for an instruction input. In the screen display in the instruction input waiting state, the seven child screens in FIG. 7D are in a blank state, and only a large screen moving image is displayed. In this state, when an instruction is input to a large screen display image, for example, a moving image with an optical electronic pen, the screen at the time of the detection is sampled every time the instruction input is detected, and this image data is used as a still image in seven small screen areas. A, b,
Stored sequentially in the order of c,... Then, the input operation is stopped when all seven child screens are stored. If it is desired to store another screen, the user presses a switch button for generating an eraser selection signal on the console panel 102 and then inputs and inputs a child screen to be deleted. A new child screen can be stored. If it is desired to store a plurality of screens, the above operation may be repeated. In the strobe / store display function, the display image to which the instruction is input may be a moving image or a still image.

In the above embodiment, the image display device including the rear projection type image projection device has been described.
A device equipped with a front projection type image projection device may be used. Further, the image projection device is not limited to the DMD, but may be of a type using a liquid crystal. Further, the coordinate detecting means is not limited to the optical type as described above, but may be based on various detection principles.

[0064]

As described above, according to the present invention, the user can directly input an instruction to an image displayed on the screen, thereby enabling editing processing such as enlargement / reduction and replacement of the image. Therefore, it is possible to realize an image display device that is extremely easy to use in presentations in which explanations and presentations are made while referring to the displayed image while editing the displayed image.

[Brief description of the drawings]

FIG. 1 is an external view of an image display device.

FIG. 2 is an external view of the image display device.

FIG. 3 is a block diagram illustrating a configuration of a main part of the image display device.

FIG. 4 is an explanatory diagram of a divided screen of an effective area.

FIG. 5 is a configuration diagram of packet data sent from a first substrate to a second substrate.

FIG. 6 is a configuration diagram of a second substrate in FIG. 3;

FIG. 7 is a configuration diagram of a display screen.

FIG. 8 is a basic conceptual diagram of screen display.

FIG. 9 is a basic conceptual diagram of one-screen display.

FIG. 10 is a basic conceptual diagram of a two-screen display.

FIG. 11 is a basic conceptual diagram of a three-screen display.

FIG. 12 is a basic conceptual diagram of a four-screen display.

FIG. 13 is a basic conceptual diagram of strobe screen display.

FIG. 14 is a diagram illustrating an editing example in the case of a two-screen display.

FIG. 15 is a diagram illustrating an editing example in the case of three-screen display.

FIG. 16 is a diagram showing an example of editing in the case of four-screen display.

FIG. 17 is an explanatory diagram of an initial screen in strobe screen display.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 image display device 101 screen 101 a effective area 102 console panel 103 main body 104 coordinate detection device 105 pen tray 106 first substrate 107 second substrate 108 projection device interface 109 monitor interface 110 power supply unit 111 light source lamps 112, 113 speakers 114, 115 , 202 Signal lines 116, 117 A / D converter 118, 119 Decoder and A / D converter 120 Video switcher 121, 121a-121d, 124a Frame memory 122 Selection superimposition section 123 Selection superposition switch 124 Character drawing means 125 Priority control means 126 buffer 127 D / A conversion unit 128 audio amplifier 129 remote control light receiving unit 130 panel operation interface 131 CPU 132 signal detection PLL / input switching means 133 timing generator 134 video digitizer 135 video output unit 200 the computer 201 interfaces computer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference)

Claims (5)

[Claims] 1. An image projection apparatus capable of projecting and displaying a plurality of images on a screen, coordinate detecting means for detecting input position coordinates on a screen specified by a user, and an image signal input from a plurality of systems. The image data stored in the image memory is subjected to image editing based on the image editing selection signal input by the user and the coordinate data detected by the coordinate detecting means for the image data in the image memory. An image display device with an editing function, comprising: an image editing unit that sends the image to the image projection device. 2. The image display device according to claim 1, wherein said coordinate detection means is means for optically detecting input position coordinates on a screen. 3. The image display device according to claim 1, wherein the image editing unit selects one of a single screen or a plurality of screens, a zoom display, and a strobe display including a moving image. An image display device for performing image editing based on a signal. 4. The image display device according to claim 3, wherein, among a plurality of images displayed on the screen using the image data after image editing, an image of an image including coordinate data detected by the coordinate detecting means. An image display device, wherein the image editing means performs image editing on data. 5. In a state where the strobe display function according to claim 3 is enabled, the image editing means waits for an instruction input by a predetermined input operation, and then inputs an instruction for an image displayed on the screen. An image display device having a strobe / store function of sequentially displaying a display image at each detection point on a part of a screen every time is detected.