JP2009036883A - Display information output apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display information output apparatus capable of outputting the optimum display information as the whole system and making display states on respective display machines well-balanced when outputting the display information to a plurality of display machines disposed on the same network. <P>SOLUTION: The display information output apparatus comprises: a creation part 12 for creating the display information; an information acquisition part 11 for acquiring display specifications of the connected display machines; a conversion part 13 for converting the display information created by the creation part 12 based on the acquired display specifications; and an output part 14 for outputting the display information converted by the conversion part 13 to the respective display machines. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a display information output device that outputs display information to a plurality of display devices.

Many products using color LCDs, such as fish finder, radar, plotter, etc., have been developed in the ship pleasure and merchant ship markets. Mutual use of information is attempted through a LAN or the like. In such an integrated system, a plurality of display devices exist in the network, and information output from the display information output device is displayed on each display device.
JP 2000-10539 A

When there are a plurality of display devices on the same network, it is desirable that the display states such as the resolution, color, and brightness of the images displayed on the display screen of each display device are the same. However, even though each display device has a default value setting related to the display state, the output setting is not always suitable for the entire system. That is, in the conventional apparatus, cooperation between connected display devices has not been considered. Therefore, depending on the connected display device, there has been a problem that information output from the display information output device cannot be displayed appropriately.

In addition, when the display device connected to the display information output device has a different gamma value or brightness, even if the same information is output from the display information output device, each display device displays a different color or brightness. There is a problem.

In particular, a fish finder or radar displays the image by changing the color or brightness according to the signal intensity of the received signal. Therefore, when the same information is displayed with different colors and brightness for each display, it is not possible to determine whether or not the information signal output from the display information output device is the same signal. In such cases, it has been difficult to know the correlation of information displayed on the screen.

The present invention has been made in view of such problems, and outputs optimal display information as a whole system when outputting display information from a display information output device to a plurality of displays provided on the same network. An object of the present invention is to provide a display information output device capable of leveling the display state on each display device.

In order to solve the above problems, the present invention provides a generation unit that generates display information, an information acquisition unit that acquires display specifications of a plurality of connected display devices, and the display based on the acquired plurality of display specifications. A conversion unit that converts information, and an output unit that outputs display information converted by the conversion unit to each display device are provided.

Further, the present invention provides a generation unit that generates display information, an acquisition unit that acquires identification IDs of a plurality of connected display devices, and a data table that holds display specifications of the display devices and the identification IDs in pairs. And a conversion unit that converts the display information based on a display specification corresponding to the acquired identification ID, and an output unit that outputs the display information converted by the conversion unit to each display device. .

In addition, the present invention performs transmission / reception of display specifications of a connected display device between a generation unit that generates display information, an information acquisition unit that acquires display specifications of the connected display device, and an external device. A communication unit, a conversion unit that converts the display information based on a display specification of a connected display device and a display specification acquired via the communication unit, and display information converted by the conversion unit And an output unit for outputting to the machine.

The present invention also includes a generation unit that generates display information, an acquisition unit that acquires an identification ID of a connected display device, a data table that holds a display specification of the display device and the identification ID in pairs, and Based on a communication unit that transmits / receives display specifications of a connected display device to / from an external device, a display specification corresponding to the identification ID acquired by the acquisition unit, and a display specification acquired via the communication unit A conversion unit that converts the display information, and an output unit that outputs the display information converted by the conversion unit to each display device.

In the present invention, the display specification includes at least the resolution of a display device, the conversion unit converts display information generated by the generation unit into display information having a specific resolution, and the output unit displays each display. The display information of the same resolution is output to the machine.

Further, the present invention provides the display information generated by the generation unit so that the display specification includes at least a gamma value of the display device, and the conversion unit has the same display state of the same information between the display devices. It is characterized by converting.

Further, the present invention provides the display information generated by the generation unit so that the display specification includes at least luminance information of the display device, and the conversion unit has the same display state of the same information between the display devices. It is characterized by converting.

According to the present invention, based on the display specifications of a plurality of display devices connected to the display information output device, it is possible to determine the most suitable display specification for the entire system, which is optimal on each display screen of each display device. Display becomes possible.

(Embodiment 1)
Hereinafter, a display information output apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a configuration of a display information output apparatus according to Embodiment 1 of the present invention.

As shown in FIG. 1, the display information output apparatus 1 according to the present invention includes an acquisition unit 11, a generation unit 12, a conversion unit 13, and an output unit 14. The display information output device 1 is connected to the display devices A to C via the output ports 14a to 14c.

The acquisition unit 11 acquires display specifications of a plurality of connected display devices. The display specifications are, for example, information such as display resolution, gamma value, luminance value, aspect ratio, and the like, and ensure uniformity or consistency among the display devices of images displayed on the display devices A to C. Information used for this purpose. The display specifications acquired by the acquisition unit 11 may be display device specifications, or screen settings such as resolution, gamma value, and luminance value set on the display device side.

The generation unit 12 generates display information, and generates user-desired information to be displayed on a display device for each display device based on instruction information from an external operation unit. The display information is information displayed on the display screen and includes, for example, a detection image by fish finder and a radar detection image.
When the same display information is displayed on each display device, it is not always necessary to generate display information for each display device.
The conversion unit 13 converts the display information generated by the generation unit 12 based on the display specifications acquired by the acquisition unit 11.
The output unit 14 outputs the display information converted by the generation unit 13 to each of the displays A to C, and the display information after conversion according to the display specifications acquired by the acquisition unit 11 is displayed on each of the displays A to C. Output to C. Here, an example in which the output unit 14 includes output ports 14a to 14c corresponding to the respective displays A to C is shown.

FIG. 2 is a flowchart for explaining the operation of the display information output apparatus according to Embodiment 1 of the present invention.
The display information output device 1 is connected to the connected display devices A to C when the power is turned on or when a new display device is connected to any of the output ports 14 a to 14 c of the output unit 14. Request to send display specifications for.

The display specifications transmitted from the display devices A to C are acquired by the acquisition unit 11 (step S1), and the acquired display specifications of the display devices A to C are output to the conversion unit 13. The conversion unit 13 converts the display information generated by the generation unit 12 based on the display specifications acquired by the acquisition unit 11 (step S2). Details of this conversion processing will be described later with reference to FIGS.

The display information converted by the conversion unit 13 is output to the output unit 14, and the converted display information is output for each of the displays A to C via the output ports 14a to 14c (step S3).

Next, the conversion process by the conversion unit 13 will be described. For simplification of explanation, here, the case where there is one type of display specification acquired by the acquisition unit 11 will be described as an example.

[When the display specifications are the resolutions of the display devices A to C]
FIG. 3 is a flowchart for explaining conversion processing by the conversion unit 13 when the display specification is resolution.

In FIG. 3, when the resolutions of the plurality of display devices A to C to which the acquisition unit 11 is connected are acquired, the conversion unit 13 first determines whether the display information output device can output the same display information at different resolutions. Is performed (step S11).

If display information with a different resolution can be output, the display information generated by the generation unit 12 is converted into a resolution corresponding to each of the output destination displays A, B, and C (step S12), and the display after conversion is performed. Information is output to each of the displays A to C via the output unit 14.

In general, when the resolution of the input signal and the resolution of the LCD used in the display device is 1: 1 in the display device, the display information output device outputs the image without causing character blur or color blur. Display information can be expressed most beautifully. Therefore, it is preferable to output display information with an optimum resolution according to the resolution of each of the display devices A to C connected to the display information output device.

However, most of the current graphic boards (for example, the display information output apparatus 1 shown in FIG. 1) having two or more output ports cannot output display information with different resolutions. When a plurality of display devices having different resolutions are connected, it is necessary to match the resolution of the display information to be output to the resolution of one of the display devices.

Therefore, in the present invention, the conversion unit 13 converts the display information generated by the generation unit 12 into display information having a specific resolution so that exactly the same display output is output from the output unit 14 to a plurality of display devices. . Here, a case will be described as an example in which processing to match the lowest resolution among the connected display devices is performed.
First, the conversion unit 13 determines whether or not the resolutions acquired from the plurality of display devices A to C are all the same (step S13).

As a result of the determination, when the resolutions of the plurality of display devices A to C acquired by the acquisition unit 11 are all the same, the display information generated by the generation unit 12 is changed to the resolutions of the display devices A to C (same as necessary). Value) (step S14), and the display information after conversion is output to all the displays A to C via the output unit 14. Note that when the resolution of the display information generated by the generation unit 12 is the same as the resolution of the display devices A to C, the conversion process by the conversion unit 13 is not necessary. When all the resolutions A to C are the same, the resolution information acquired by the conversion unit 13 may be output to the generation unit 12, and the generation unit 12 may generate display information of the same resolution.

On the other hand, when the acquired resolutions of the plurality of display devices A to C are not all the same, the lowest resolution among the resolutions acquired by the acquisition unit 11 is detected (step S15). And the display information produced | generated by the production | generation part 12 is converted into the lowest resolution detected by step S15, and the display information after conversion is output to all the display apparatuses AC through the output part 14. FIG.

In this way, by converting the resolution of the display information in accordance with a display device having a low resolution, the display device having a high resolution causes a character blur or a color blur, but the display is drawn with one dot. Information such as lines can be displayed without disappearing, and there is no problem that information to be displayed is not displayed on the display screen.

[When the display specifications are the gamma values of the display devices A to C]
The recommended gamma value described in the EDID data of the display device varies depending on the manufacturer and model. If the same display information is output to such displays with different gamma values, the same screen should be displayed, but the intermediate colors and the like will be in different shades. Therefore, in order to solve this problem, the display information output to each display device is individually converted so as to obtain an optimal gamma value for the entire system, so that the same gamma value can be obtained for each display device. It is possible to provide an image of the display state.

FIG. 4 is a flowchart for explaining conversion processing by the conversion unit 13 when the display specification is a gamma value.

First, the conversion unit 13 determines whether or not the gamma values acquired from the plurality of display devices A to C are all the same (step S21).

As a result of the determination, if the gamma values of the plurality of display devices A to C acquired by the acquisition unit 11 are all the same, the display information generated by the generation unit 12 is output as it is to the display devices A to C (step S22). . On the other hand, when the acquired gamma values of the plurality of display devices A to C are not all the same, based on the plurality of gamma values acquired by the acquisition unit 11, the same information displayed on the display devices A to C side. The display information generated by the generation unit 12 is individually converted for each display so that the display state is the same among the displays A to C. The converted display information is output to each of the display devices A to C via the output unit 14. The above-mentioned display state means the luminance intensity of each RGB, and the same display state between the display devices means that the luminance intensity of each RGB displayed on the display device is the same.

FIG. 5 is an explanatory diagram for explaining a method for obtaining an optimal gamma value in a system to which displays having different gamma values are connected. In FIG. 5, the vertical axis represents the luminance intensity displayed on the screen of the display, and the horizontal axis represents the output signal level output from the display information output device. The horizontal axis shows an example when the output signal level is expressed as an 8-bit digital signal.

As shown in FIG. 5, for example, when the output signal level of the display information output from the display information output device is “128”, the luminance intensity of the display device with the gamma value of 2.2 is “a”. The luminance intensity of a display device with a gamma value of 3.0 is “b”. If the display is performed as it is, the luminance intensity on the display device is different, and the same information becomes different display states. Therefore, the display information is converted so that the same output signal level information is displayed with the same luminance intensity on each display so that the display state of the same information displayed on the display is the same between the displays. To do. As a specific method of the conversion process, there is an average process.

The dotted line shown in FIG. 5 is the optimum gamma value when the averaging process is performed. For example, when the output signal level of the display information output from the display information output device is “128”, the luminance intensity of the display device with the gamma value of 2.2 is “a” and the luminance intensity of the display device with the gamma value of 3.0. Becomes "b"
The optimum luminance intensity “c” is (luminance intensity “a” + luminance intensity “b”) / 2. In this way, the luminance intensity corresponding to each output signal level can be calculated, and the optimum gamma value indicated by the dotted line in FIG. 5 can be obtained.

The conversion unit 13 of the display information output device converts the display information generated by the generation unit 12 based on the optimum gamma value so that information of the same output signal level is displayed with the same luminance intensity on the display side. The converted display information is individually output to each display device.

Although the description has been given here of the case where the gamma value of each display device is averaged to obtain the optimal gamma value and the conversion process by the conversion unit 13 is performed based on the optimal gamma value, the conversion process by the conversion unit 13 is the same output. As long as the signal level information is displayed in the same display state between each display device, for example, the output signal level of another display device is changed to match the gamma value of a specific display device. Also good.

[When the display specifications are the luminance values of the display devices A to C]
The color displayed on the display device varies greatly not only in chromaticity (RGB values) but also in luminance. Therefore, in order to solve this problem, the luminance value of each display device is acquired in advance, and the display information output to each display device is individually converted so that the display information is displayed with the optimal luminance intensity for the entire system. . This makes it possible to provide an image with the same display state even if the brightness values of the respective display devices are different.

FIG. 6 is a flowchart for explaining the conversion process by the conversion unit 13 when the display specification is a luminance value.

First, the conversion unit 13 determines whether or not the luminance values acquired from the plurality of display devices A to C are the same (step S31).

As a result of the determination, when the luminance values of the plurality of display devices A to C acquired by the acquisition unit 11 are all the same, the display information generated by the generation unit 12 is output as it is to the display devices A to C (step S32). . On the other hand, if the acquired brightness values of the plurality of display devices A to C are not all the same, the same information displayed on the display devices A to C side based on the plurality of brightness values acquired by the acquisition unit 11. The display information generated by the generation unit 12 is individually converted so that the display state is the same among the display devices A to C. The converted display information is output to each of the display devices A to C via the output unit 14. The above-mentioned display state means the luminance intensity of each RGB, and the same display state between the respective display devices means that the luminance intensity of each RGB displayed on the display device is the same.

FIG. 7 is an explanatory diagram for explaining a method for obtaining an optimum luminance value in a system in which displays having different luminance values are connected. In FIG. 7, the vertical axis represents the luminance intensity displayed on the screen of the display, and the horizontal axis represents the output signal level output from the display information output device. The horizontal axis shows an example when the output signal level is expressed as an 8-bit digital signal.

As shown in FIG. 7, for example, when the output signal level of the display information output from the display information output apparatus is "128", for the brightness intensity of the display device of the luminance value 300 cd / m ² is "d" On the other hand, the luminance intensity of the display device having the luminance value of 250 cd / m ² is “e”. If the display is performed as it is, the luminance intensity on the display device is different, and the same information becomes different display states. Therefore, information of the same output signal level is displayed with the same luminance intensity on each display so that the display state of the same information displayed on the display side is the same between the displays. As a specific method of the conversion process, there is a method of matching a gamma curve having a higher luminance value with a gamma curve having a lower luminance value.

When the gamma curve having the higher luminance value is matched with the gamma curve having the lower luminance value, the display information for the display device having the lower luminance value may be left as it is. On the other hand, the display information output to the display device with the higher luminance value is converted by the conversion unit 13 so that the information on the same output signal level is displayed at the same luminance intensity on the display device side. For example, when the output signal level of the display information output from the display information output device is “128”, the luminance intensity “d” of the display device having the luminance value of 300 cd / m ² is the luminance of the display device having the luminance value of 250 cd / m ^2. The display information is converted so that the intensity is “e”.

Also, here, an example in which the gamma curve having a high luminance value is matched with the gamma curve having a low luminance value has been described as the conversion process by the conversion unit 13, but in the conversion process by the conversion unit 13, information of the same output signal level is displayed for each display. What is necessary is just to be displayed in the same display state between machines.

Further, in the first embodiment of the present invention, for the sake of simplification of the description, the case where the display specification is resolution, the case of gamma value, and the case of luminance value has been described as an example. Even in the case where at least two pieces of information of the gamma value and the luminance value are acquired as display specifications, the present invention can be similarly applied.

(Embodiment 2)
Hereinafter, a display information output apparatus according to Embodiment 2 of the present invention will be described with reference to the drawings.
FIG. 8 is a diagram showing a configuration of a display information output apparatus according to Embodiment 2 of the present invention.

As shown in FIG. 8, the display information output device 2 of the present invention includes an acquisition unit 21, a generation unit 12, a data table 22, a conversion unit 23, and an output unit 14. The display information output device 2 is connected to the display devices A to C through the output ports 14a to 14c. The same components as those of the display information output apparatus according to the first embodiment of the present invention described with reference to FIG.

The acquisition unit 21 acquires identification IDs of a plurality of connected display devices. The identification ID is information for identifying the connected display device, and corresponds to information such as a model name and a serial number, for example.
The data table 22 is a storage unit that holds a display specification of the display device and an identification ID as a pair.
The conversion unit 23 reads the display specification corresponding to the identification ID acquired by the acquisition unit 11 from the data table 22, and converts the display information generated by the generation unit 12 based on the read display specification.

As described above, the display information output device is provided with the data table 22 that holds the display specifications and the identification IDs of the display devices in pairs, so that each display device can be controlled based on the identification IDs of the connected display devices. It is possible to provide display information according to the response. In addition, by managing the identification ID and the display specification in the data table 22, the display information output device can provide the display information suitable for the connected display as long as the identification ID of the display can be obtained. The effect of increasing versatility can be obtained regardless of the specifications of the display.

(Embodiment 3)
Hereinafter, a display information output apparatus according to Embodiment 3 of the present invention will be described with reference to the drawings.
FIG. 9 is a diagram showing a configuration of a display information output apparatus according to Embodiment 3 of the present invention.

As shown in FIG. 9, the display information output devices 1 a and 1 b according to the present invention each include an acquisition unit 11, a generation unit 12, a conversion unit 32, an output unit 14, and a communication unit 31. The same components as those of the display information output apparatus according to the first embodiment of the present invention described with reference to FIG. In addition, here, an example is shown in which three display devices are connected to one display information output device, but the number of display devices connected to one display information output device may be at least one or more. .

The communication unit 31 is for transmitting and receiving display specifications of a display device existing on the same network to and from an external device. The communication unit 31 transmits display specifications of the display device connected to the own device and other devices. Receive the display specifications of the display connected to the.
The display information output device 1a transmits the display specifications of the displays A to C to the display information output device 1b, and the display information output device 1b transmits the display specifications of the displays D to F to the display information output device 1a. Thereby, the display information output devices 1a and 1b can obtain the display specifications of all the display devices A to F connected on the network.
The conversion unit 32 converts the display information generated by the generation unit 12 based on the display specifications of the display device connected to the device itself and the display specifications acquired via the communication unit 31.

As described above, the display information output devices 1a and 1b acquire the display specifications of all the display devices A to F existing on the same network, and convert the display information based on the acquired display specifications. As a whole, it is possible to output optimal display information.

The present invention can be freely modified within the scope of the present invention described in each embodiment of the present invention, and is not limited to the contents described in each embodiment of the present invention. .

The figure which shows the structure of the display information output device by Embodiment 1 of this invention. The flowchart for demonstrating operation | movement of the display information output device by Embodiment 1 of this invention. Flowchart for explaining conversion processing by the conversion unit when the display specification is resolution Flowchart for explaining the conversion process by the conversion unit when the display specification is a gamma value Explanatory drawing explaining the method to find the optimal gamma value Flowchart for explaining conversion processing by the conversion unit when the display specification is a luminance value Explanatory drawing explaining the method of obtaining the optimal luminance value The figure which shows the structure of the display information output device by Embodiment 2 of this invention. The figure which shows the structure of the display information output device by Embodiment 3 of this invention.

Explanation of symbols

11, 21 Acquisition unit 12 Generation unit 13, 23, 32 Conversion unit 14 Output unit 14a, 14b, 14c Output port 22 Data table 31 Communication unit

Claims (7)

A generation unit for generating display information;
An information acquisition unit for acquiring display specifications of a plurality of connected display devices;
A conversion unit that converts the display information based on the plurality of acquired display specifications;
A display information output device comprising: an output unit that outputs the display information converted by the conversion unit to each display device. A generation unit for generating display information;
An acquisition unit for acquiring identification IDs of a plurality of connected display devices;
A data table that holds a display specification of the display and the identification ID in pairs;
A conversion unit that converts the display information based on display specifications respectively corresponding to the acquired plurality of identification IDs;
A display information output device comprising: an output unit that outputs the display information converted by the conversion unit to each display device. A generation unit for generating display information;
An information acquisition unit for acquiring the display specifications of the connected display;
A communication unit that transmits and receives display specifications of the connected display device to and from an external device;
A conversion unit that converts the display information based on a display specification of a connected display device and a display specification acquired via the communication unit;
A display information output device comprising: an output unit that outputs the display information converted by the conversion unit to each display device. A generation unit for generating display information;
An acquisition unit for acquiring an identification ID of the connected display;
A data table that holds a display specification of the display and the identification ID in pairs;
A communication unit that transmits and receives display specifications of the connected display device to and from an external device;
A conversion unit that converts the display information based on a display specification corresponding to the identification ID acquired by the acquisition unit and a display specification acquired via the communication unit;
A display information output device comprising: an output unit that outputs the display information converted by the conversion unit to each display device. In the display information output device according to any one of claims 1 to 4,
The display specification includes at least the resolution of a display device,
The conversion unit converts all of the display information generated by the generation unit into display information having a specific resolution,
The display information output device, wherein the output unit outputs display information having the same resolution to each display device. In the display information output device according to any one of claims 1 to 4,
The display specification includes at least a gamma value of a display device,
The display information output device, wherein the conversion unit converts the display information generated by the generation unit so that a display state of the same information is substantially the same between the respective display devices. In the display information output device according to any one of claims 1 to 4,
The display specification includes at least luminance information of a display device,
The display information output device, wherein the conversion unit converts the display information generated by the generation unit so that a display state of the same information is substantially the same between the respective display devices.

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