JP2004085946A - Image composite display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a high-definition display and a superimposed display by applying an H/W composition to display signals. <P>SOLUTION: The image composite display device is composed of input I/F sections 101, 102 for inputting display signals, a synchronous control section 103 for synchronously controlling and outputting an output of the input I/F, a primary buffer memory 104 for storing the output, an S/C 107 for inputting and scan-converting video signals, a video memory 108 for coping with video for storing the output, a trail LUT 112 for inputting the read-out of the memory and outputting after luminance processing, a chromakey composition function section 106 for chromakey processing the output of the primary buffer memory 104 and the output of the trail LUT 112, an output picture memory 109 for storing the output, output I/F means 110, 111 for reading out of the memory synchronously with TV scanning and outputting high-definition display signals 4 and superimposed display signals 5 by carrying out D/A conversion or the like, and a control CPU 105 for controlling the synchronization control means 103 or the like. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a display device, and more particularly to a function improvement of resolution synthesis for obtaining a high resolution of a plurality of output screens and superimposition synthesis of a radar video image or the like.
[0002]
[Prior art]
In a conventional high-definition (resolution) display device, in order to generally correspond to the resolution, for example, as disclosed in JP-A-08-328540, a plurality of pixels are parallel-processed internally. I was Therefore, the H / W configuration, the driver software, and the like are complicated specially designed products.
[0003]
In addition, many techniques for multi-screen (multi-screen) and combining screens into one have been proposed, for example, as disclosed in Japanese Patent Application Laid-Open Nos. 03-084586 and 2000-330502. ing. These are based on the premise that a display signal is output to a plurality of separate monitors or screens of a common resolution as a display device, and by placing the display devices physically close to each other, the One image is synthesized.
[0004]
In addition, in the above-described synthesizing technique, for example, as disclosed in Japanese Patent Application Laid-Open No. 2001-128089, only insertion of a screen such as superimposition by switching display signals is performed, and There is no image combining (hereinafter, superimposed display).
[0005]
[Problems to be solved by the invention]
As described above, the conventional high-definition (resolution) display device has a problem in that it is a specially designed product and is a very expensive device. However, in recent years, due to the overall H / W cost reduction, it has been required to reduce the price even for a specially designed product.
[0006]
In addition, the technology for composing a single screen corresponding to a multi-screen (a plurality of screens) is based on the premise that a display signal is output to a plurality of separate monitors or screens as display devices. Therefore, there is a problem that it cannot be directly applied to one high-definition monitor.
[0007]
In addition, in the above-described synthesizing technique, there is no technique that only inserts a screen by switching a display signal and synthesizes an image with analog video or the like (hereinafter, superimposed display).
[0008]
However, for example, radar video for air traffic control needs superimposed display instead of screen insertion.
[0009]
The main object of the present invention is to utilize a multi-monitor function that has begun to be supported as a standard by the technological innovation of a graphic adapter and an OS, to combine them in H / W by a frame memory, etc., to display them on a high-definition monitor, and to superimpose the display. The present invention is to provide a screen synthesis type display device characterized by performing the following.
[0010]
[Means for Solving the Problems]
According to the present invention, there is provided a screen synthesis type display device, wherein an input I / F means for inputting a display signal output by a computer and converting the input signal into a form suitable for internal processing, and an output of the input I / F means are synchronously controlled and output. Synchronization control means, a primary buffer memory for storing the output of the synchronization control means, a chroma synthesis function means for performing chroma processing on the output of the primary buffer memory, and an output for accumulating the output of the chroma synthesis function means An image memory, and an output I / F means for performing reading from the output image memory in synchronization with TV scanning, performing D / A conversion and digital I / F transmitter processing, and outputting a high-definition display signal; A high-definition monitor for displaying a high-definition display signal output by the output I / F means; a control CPU for controlling the synchronization control means and the chroma synthesizing function means; A display signal output by a multi-monitor function of the computer and input to the input I / F means is synthesized in a resolution direction in the output image memory, and a high-definition display is adjusted to a high-speed timing of the high-definition monitor. A signal is output from the output I / F means and displayed on the high definition monitor.
[0011]
According to the present invention, there is provided a screen synthesis type display device, wherein an input I / F means for inputting a display signal output by a computer and converting the input signal into a form suitable for internal processing, and an output of the input I / F means are synchronously controlled and output. Synchronization control means, a primary buffer memory for storing the output of the synchronization control means, a chroma synthesis function means for performing chroma processing on the output of the primary buffer memory, and an output for accumulating the output of the chroma synthesis function means An image memory; an output I / F means for performing readout from the output image memory in synchronization with TV scanning, performing D / A conversion or digital I / F transmitter processing, and outputting a display signal; A high-definition monitor for displaying a high-definition display signal output by the I / F means; a control CPU for controlling the synchronization control means and the chroma synthesizing function means; The contents of the primary buffer memory are read in accordance with the instruction of the control CPU, and the chroma synthesizing means writes the same to the output image memory at a resolution obtained by adding the resolution of the input display signal, and the output I / F means outputs the output data. It reads out from the image memory in synchronization with TV scanning, and outputs the high-definition signal.
[0012]
According to the present invention, there is provided a screen synthesis type display device, wherein an input I / F means for inputting a display signal output by a computer and converting the input signal into a form suitable for internal processing, and an output of the input I / F means are synchronously controlled and output. Synchronization control means, a primary buffer memory for storing the output of the synchronization control means, a chroma synthesis function means for performing chroma processing on the output of the primary buffer memory, and an output for accumulating the output of the chroma synthesis function means An image memory; an output I / F means for performing readout from the output image memory in synchronization with TV scanning, performing D / A conversion or digital I / F transmitter processing, and outputting a display signal; A monitor for displaying a superimposed display signal output from the I / F means; a control CPU for controlling the synchronization control means and the chroma synthesizing function means; The contents of the memory for the I / F are read out according to the instruction of the control CPU, the chroma synthesizing function means performs the chroma processing, and the superimposed write is performed on the output image memory, thereby making the output I / F means. A superimposed display signal is output and displayed on the monitor.
[0013]
According to the present invention, there is provided a screen synthesis type display device, wherein an input I / F means for inputting a display signal output by a computer and converting the input signal into a form suitable for internal processing, and an output of the input I / F means are synchronously controlled and output. A synchronization control unit, a primary buffer memory for storing an output of the synchronization control unit, a scan converter for inputting a video signal for scan conversion, a video correspondence memory for storing an output of the scan converter, A trail LUT (look-up table) for inputting the readout of the corresponding memory, processing the luminance, and outputting the result; An output image memory for accumulating the output of the chroma synthesizing function means, and reading from the output image memory in synchronization with TV scanning. Output I / F means for performing D / A conversion and digital I / F transmitter processing to output a high-definition display signal and / or a superimposed display signal, the synchronization control means, and the chroma synthesis function means And a control CPU for controlling the scan converter, wherein the chroma synthesizing function means reads out the primary buffer memory, performs chroma synthesizing with the trail LUT, and writes it into the output image memory. It is characterized by the following.
[0014]
According to the present invention, there is provided a screen synthesis type display device, wherein an input I / F means for inputting a display signal output by a computer and converting the input signal into a form suitable for internal processing, and an output of the input I / F means are synchronously controlled and output. A synchronization control unit, a primary buffer memory for storing an output of the synchronization control unit, a scan converter for inputting a video signal for scan conversion, a video correspondence memory for storing an output of the scan converter, A trail LUT (look-up table) for inputting the readout of the corresponding memory, processing the luminance, and outputting the result; An output image memory for accumulating the output of the chroma synthesizing function means, and reading from the output image memory in synchronization with TV scanning. Output I / F means for performing D / A conversion and digital I / F transmitter processing to output a high-definition display signal and / or a superimposed display signal, the synchronization control means, and the chroma synthesis function means And a control CPU for controlling the scan converter.
[0015]
In the screen synthesis type display device according to the present invention, the display signal input to the input I / F means may be a display signal output by a multi-monitor function of the computer, a display signal individually output from a plurality of the computers, a radar A video signal including video, wherein the video signal is a video signal including radar video.
[0016]
In the screen composition type display device according to the present invention, the output image memory is a frame memory.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
In order to clarify the above and other objects, features, and advantages of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 is a block diagram of the screen composition function unit 100. Referring to FIG. 1, the screen synthesizing function unit 100 shown in FIGS. 2 and 3 inputs the display signals 1 and 2 output from the computer and converts them into a form suitable for internal processing (such as A / D conversion). F (interface) 101 and 102, a synchronous control unit 103 that synchronously controls and outputs the outputs of the input I / Fs 101 and 102, a primary buffer memory 104 that accumulates the output of the synchronous control unit 103, and scans other video signals 3. An S / C (scan converter) 107 to be converted, a video memory 108 for storing the output of the S / C 107, a trail LUT (look-up table) 112 for inputting the readout of the video memory 108, performing luminance processing, and outputting the result. A chroma synthesizing function unit 106 for performing chroma processing on the output of the primary buffer memory 104 and the output of the trail LUT 112; An output image memory 109 configured as a frame memory for accumulating the output of the romaki synthesizing function unit 106, reading out from the output image memory 109 in synchronization with TV scanning, D / A conversion, digital I / F transmitter processing, and the like. And output I / Fs (interfaces) 110 and 111 for outputting display signals, a synchronization control unit 103, a chroma synthesizing function unit 106, and a control CPU 105 for controlling the S / C 107.
[0019]
If the other video signal 3 is unnecessary, the S / C 107, the video memory 108, and the trail LUT (lookup table) 112 may not be provided.
[0020]
The display signals 1 and 2 are display signals (for example, display signals 1 and 2 shown in FIG. 2) output by a multi-monitor function of a PC (personal computer) or display signals (for example, display signals output from separate PCs). The display signals 1 and 2 are shown in FIG. 3, and the display signal 1 and the display signal 2 are different systems.
[0021]
When high resolution is to be implemented, the display signals 1 and 2 are received by the input I / Fs 101 and 102, respectively, and accumulated in the primary buffer memory 104 via the synchronization control unit 103. Reading from the primary buffer memory 104 is written to the output image memory 109 via the chroma synthesis function unit 106. Note that the output image memory 109 is usually configured as a frame memory. The reading of the output image memory 109 is performed at a timing synchronized with the TV scanning of the high definition monitor 204, and is output as the high definition display signal 4 via the output I / F 110.
[0022]
In addition, when superimposed display is performed, other video signals 3 such as radar video are scan-converted by an S / C (scan converter) 107 as necessary, and stored in a video-compatible memory 108. Reading from the video memory 108 is output to the chroma synthesizing function unit 106 via a trail LUT (lookup table) 112. Here, reading from the primary buffer memory 104 and chroma synthesis are performed, and the result is written to the output image memory 109. Reading from the output image memory 109 is performed at a timing synchronized with TV scanning of a general monitor, and is output as the superimposed display signal 5 via the output I / F 111.
[0023]
It is obvious that the primary buffer memory 104 and the video memory 108 can be used in common or the display signal 2 can be used as another video signal 3 depending on the application.
[0024]
The multi-monitor function of the PC or the like in FIG. 1 is a function in which a plurality of displays are attached to one computer and all of them can be used in the same desktop area, and are well known to those skilled in the art. Since it is not directly related to the present invention, a detailed description thereof will be omitted.
[0025]
Hereinafter, the operation of the present embodiment will be described. In the case of high resolution, display signals (for example, display signals 1 and 2 shown in FIG. 2) output by the multi-monitor function are used to perform cursor control and the like as one screen.
[0026]
When superimposed display is performed, display signals (for example, display signals 1 and 2 shown in FIG. 2) output by a multi-monitor function of a PC or the like or display signals output from separate PCs (for example, shown in FIG. 3) The display signals 1 and 2) are used.
[0027]
The input I / Fs 101 and 102 receive the display signals 1 and 2 and perform conversion (such as A / D conversion) into a form suitable for internal processing. The outputs of the input I / Fs 101 and 102 are written into the primary buffer memory 104 after the synchronization control is performed by the synchronization control unit 103 under the control of the control CPU 105.
[0028]
First, a case of implementing high resolution will be described. The contents of the primary buffer memory 104 are read out according to an instruction from the control CPU 105, and the chroma synthesizing function unit 106 executes only the resolution adding (merging) process and writes it into the output image memory 109. In this case, writing is performed at a resolution obtained by adding the resolutions of the display signals 1 and 2. For example, when the display signals 1 and 2 have a resolution of 1024 × 1280 pixels, screen information having a total resolution of 2048 × 1280 is written in the output image memory 109. The output I / F 110 reads out from the output image memory 109 in synchronization with TV scanning at a high readout speed suitable for the high definition display signal 4, and performs D / A conversion, digital I / F transmitter processing, and the like. Then, a high definition display signal 4 is output.
[0029]
Next, a case where the display signals 1 and 2 are superimposed and displayed will be described. The contents of the primary buffer memory 104 are read out according to an instruction from the control CPU 105, and the chroma synthesizing function unit 106 performs a chroma processing and writes the output image memory 109. In this case, the display signals 1 and 2 are superimposed and written, and the resolution is not changed. This function is effective, for example, when parallel processing is performed by separate PCs or the like because the display load is heavy due to a large number of display objects and a high update frequency. The output I / F 111 reads out from the output image memory 109 in synchronization with the TV scan at a normal speed suitable for the superimposed display signal 5 and performs D / A conversion, digital I / F transmitter processing, and the like. The superimposed display signal 5 is output.
[0030]
Next, a case of synthesizing another video signal (other video signal) will be described. The basic configuration is as described above, but the deviated portion in FIG. For example, when a video image of a radar or the like is displayed as the other video signal 3, the S / C 107, the video-compatible memory 108, and the trail LUT 112 in the dashed line in FIG. 1 are added (simple extension). The other video signal 3 such as radar video is scan-converted by the S / C 107 as necessary, and is stored in the video memory 108. The trail LUT 112 is used to quickly change the brightness of a video image. The trail LUT 112 receives the readout of the video correspondence memory 108, performs the above-described luminance processing, and outputs the output to the chroma synthesis function unit 106. The chroma synthesizing function unit 106 reads the primary buffer memory 104, performs chroma synthesizing with the trail LUT 112, and writes the result into the output image memory 109. Subsequent operations are the same as in the first embodiment, and a description thereof will be omitted. As described above, in the present embodiment, it is possible to obtain an effect that synthesis of another video signal can be realized by easy addition.
[0031]
FIG. 2 shows a first embodiment of a screen composition type display device using the screen composition function unit 100 shown in FIG.
[0032]
The screen synthesis type display device according to the present invention is characterized in that, for example, as shown in FIG. 2, a screen synthesis function unit 100 is provided after the multi-monitor function realized by the PC 201 or the like. Different display signals 1 and 2 in which the monitor 202 and the monitor 203 are treated as one desktop screen by the multi-monitor function are input to the screen combining function unit 100.
[0033]
The screen synthesizing function unit 100 has a frame memory or the like in the output image memory 109, synthesizes (merges) the display signals 1 and 2 in the resolution direction on the frame memory or the like, and performs the high-speed monitoring of the high definition monitor 204 An operation of outputting the combined high-definition display signal 4 is performed.
[0034]
Therefore, an effect that a high-definition (resolution) display device can be easily constructed using the inexpensive PC 201 or the like is obtained. Note that the screen-synthesizing display device according to the present configuration also has the effect of being independent of the type of OS, driver, etc., as long as the PC has only a multi-monitor function.
[0035]
The multi-monitor display signals 1 and 2 from the PC 201 and the like are supplied to the screen synthesizing function unit 100 and are synthesized. The output is output to the high definition monitor 204 as a high definition display signal 4. The high-definition monitor 204 realizes display at a resolution obtained by adding the resolutions of the monitor 202 and the monitor 203.
[0036]
FIG. 3 is a second embodiment of a screen composition type display device using the screen composition function unit 100 shown in FIG. The upper part shows a configuration in which display signals 1 and 2 from the PCs 301 and 302 are displayed on the monitor 303 and the monitor 304, respectively. The lower part is a configuration in which the superimposed display signal 5 is output and displayed on the monitor 303 by using the screen composition function unit 100. Since the screen synthesizing function unit 100 includes the synchronization control unit 103, it is possible to input the display signals 1 and 2 of the separate PCs 301 and 302, as shown in FIG. But it is possible. Further, the screen synthesizing function unit 100 includes a chroma synthesizing function unit 106 and a trail LUT 112. These enable superimposed display of images processed in parallel by the separate PCs 301 and 302, superimposed display when the display signal 2 is another video signal such as radar, and high-speed video trail display using the trail LUT 112. .
[0037]
It should be noted that the present invention is not limited to the above embodiments, and it is clear that the embodiments can be appropriately modified within the scope of the technical idea of the present invention.
[0038]
【The invention's effect】
As described above, according to the present invention, based on a basic configuration in which a plurality of output images of a PC or the like are synthesized by a screen synthesis function, a multi-monitor function is used, and H / W synthesis is performed using a frame memory or the like. Displaying on a high-definition monitor has the effect that a high-definition display device can be realized at a low cost with a simple configuration.
[0039]
Further, the screen synthesizing function of the present invention has an effect that the display screens that have been processed in parallel can be superimposed regardless of the type of the OS.
[0040]
Further, the screen synthesizing function of the present invention has an effect that it is possible to cope with display signals from different graphic adapters by synchronous control.
[0041]
Furthermore, other types of video images can be synthesized by simple extension, and there is an effect that a trail LUT (look-up table unit) can be provided and video trail display and the like can be realized at high speed.
[Brief description of the drawings]
FIG. 1 is a block diagram of a screen composition function unit.
FIG. 2 is a first embodiment of a screen composition type display device using a screen composition function unit.
FIG. 3 is a second embodiment of a screen composition type display device using a screen composition function unit.
[Explanation of symbols]
1, 2 display signal 3 other video signal 4 high-definition display signal 5 superimposed display signal 100 screen synthesis function units 101 and 102 input I / F
103 Synchronization control unit 104 Primary buffer memory 105 Control CPU
106 Chromaki synthesis function unit 107 S / C (scan converter)
108 Memory for video 109 Memory for output image 110, 111 Output I / F
112 Trail LUT (Look Up Table)
201 PC
202, 203 monitor 204 high-definition monitor 301, 302 PC
303, 304 monitor

Claims (7)

Input I / F means for inputting a display signal output by a computer and converting it into a form suitable for internal processing;
Synchronous control means for synchronously controlling and outputting the output of the input I / F means;
A primary buffer memory for storing the output of the synchronization control means;
A chroma synthesis function means for performing a chroma process on the output of the primary buffer memory;
An output image memory for storing the output of the chroma synthesis function means,
Output I / F means for performing reading from the output image memory in synchronization with TV scanning, performing D / A conversion and digital I / F transmitter processing, and outputting a high definition display signal;
A high-definition monitor for displaying a high-definition display signal output by the output I / F means;
A control CPU for controlling the synchronization control means and the chroma synthesis function means,
A display signal output by the multi-monitor function of the computer and input to the input I / F means is synthesized in a resolution direction by the output image memory, and a high-definition display signal adjusted to a high-speed timing of the high-definition monitor. Is output from the output I / F means and displayed on the high-definition monitor. Input I / F means for inputting a display signal output by a computer and converting it into a form suitable for internal processing;
Synchronous control means for synchronously controlling and outputting the output of the input I / F means;
A primary buffer memory for storing the output of the synchronization control means;
A chroma synthesis function means for performing a chroma process on the output of the primary buffer memory;
An output image memory for storing the output of the chroma synthesis function means,
Output I / F means for performing reading from the output image memory in synchronization with TV scanning, performing D / A conversion and digital I / F transmitter processing, and outputting a display signal;
A high-definition monitor for displaying a high-definition display signal output by the output I / F means;
A control CPU for controlling the synchronization control means and the chroma synthesis function means,
Reading out the contents of the primary buffer memory in accordance with an instruction of the control CPU, and writing in the output image memory at a resolution obtained by adding the resolution of the input display signal by the chroma synthesizing means;
A screen combining type display device, wherein the output I / F means reads out from the output image memory in synchronization with TV scanning and outputs the high definition signal. Input I / F means for inputting a display signal output by a computer and converting it into a form suitable for internal processing;
Synchronous control means for synchronously controlling and outputting the output of the input I / F means;
A primary buffer memory for storing the output of the synchronization control means;
A chroma synthesis function means for performing a chroma process on the output of the primary buffer memory;
An output image memory for storing the output of the chroma synthesis function means,
Output I / F means for performing reading from the output image memory in synchronization with TV scanning, performing D / A conversion and digital I / F transmitter processing, and outputting a display signal;
A monitor for displaying a superimposed display signal output by the output I / F means;
A control CPU for controlling the synchronization control means and the chroma synthesis function means,
The contents of the primary buffer memory are read out according to an instruction from the control CPU, the chroma I / O function is performed by the chroma synthesizing function means, and the output I / O is performed by performing a superimposed write on the output image memory. A superimposed display signal is output from the F means and displayed on the monitor, thereby displaying the screen. Input I / F means for inputting a display signal output by a computer and converting it into a form suitable for internal processing;
Synchronous control means for synchronously controlling and outputting the output of the input I / F means;
A primary buffer memory for storing the output of the synchronization control means;
A scan converter that inputs video signals and performs scan conversion,
A video memory for storing the output of the scan converter;
A trail LUT (look-up table) for inputting the readout of the video correspondence memory, processing the luminance, and outputting the processed luminance;
Chroma synthesis function means for performing a chroma process on the output of the primary buffer memory and the output of the trail LUT;
An output image memory for storing the output of the chroma synthesis function means,
Output I / F means for performing reading in synchronization with TV scanning from the output image memory, performing D / A conversion and digital I / F transmitter processing, and outputting a high-definition display signal and / or a superimposed display signal; ,
The synchronous control means, the chroma synthesizing function means, a control CPU for controlling the scan converter,
A screen combining type display device, wherein the chroma synthesizing function means reads out the primary buffer memory, performs chroma synthesizing with the trail LUT, and writes it into the output image memory. Input I / F means for inputting a display signal output by a computer and converting it into a form suitable for internal processing;
Synchronous control means for synchronously controlling and outputting the output of the input I / F means;
A primary buffer memory for storing the output of the synchronization control means;
A scan converter that inputs video signals and performs scan conversion,
A video memory for storing the output of the scan converter;
A trail LUT (look-up table) for inputting the readout of the video correspondence memory, processing the luminance, and outputting the processed luminance;
Chroma synthesis function means for performing a chroma process on the output of the primary buffer memory and the output of the trail LUT;
An output image memory for storing the output of the chroma synthesis function means,
Output I / F means for performing reading in synchronization with TV scanning from the output image memory, performing D / A conversion and digital I / F transmitter processing, and outputting a high-definition display signal and / or a superimposed display signal; ,
A control CPU for controlling the synchronization control means, the chroma synthesis function means, and the scan converter;
A screen synthesis type display device comprising: The display signal input to the input I / F means is a display signal output by a multi-monitor function of the computer, a display signal individually output from the plurality of computers, and a video signal including radar video;
The display device according to claim 6, wherein the video signal is a video signal including a radar video. 6. The display device according to claim 1, wherein the output image memory is a frame memory.

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