JPH0997044A - Display adjusting device, display device color tone adjustment method and method for adjusting luminance/ contrast of display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust color and luminance, etc., by setting the test pattern data as the image data, displaying plural color data on a prescribed area and processing an output of a white/black sensor, based on the reference data. SOLUTION: A look-up table 14 stores previously the table data setting the relation of the output data for the input data, and inputs the image data from a video RAM 13 to covert them to the digital R, G, B data. On the other hand, the output of the white/black sensor 17 arranged oppositely to a display 16 is inputted to a capture memory 19 through an A/D converter 18. Then, a CPU 10 process the data captured by the capture memory 19, based on the previously formed reference data 20, and supplies the processed result to the look-up table 14 through a table data revision means 21 to revise the table data according to the processed result.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display adjusting device for adjusting color tone or brightness / contrast of a display connected to a personal computer, a color tone adjusting method for a display device connected to a personal computer, and a display device connected to a personal computer. The present invention relates to a brightness / contrast adjustment method of.

[0002]

2. Description of the Related Art Conventionally, as a technique of this kind of field, for example, there is one as shown in FIG.

FIG. 8 is a block diagram showing an example of the configuration of a conventional CRT device.

In the figure, reference numeral 101 is a changeover switch for changing over R, G, B data input from a video board of a personal computer (not shown) and a correction signal. The output side of the changeover switch 101 has a variable gain. Amplifier 10
2, the CRT driver 103, and the CRT 104 are connected in cascade. Then, facing the CRT 104, RGB
A sensor 105 is installed, and a signal generator 106 that generates the correction signal is connected to the changeover switch 101.

A C connected to the data memory 107
A PU 108 is provided, and the CPU 108 is connected to the variable gain amplifier 102 and the RGB sensor 105.

In this configuration, the correction signal from the signal generator 106 is input to the variable gain amplifier 102 through the changeover switch 101. Variable gain amplifier 10
The output from 2 is sent to the CPU through the CRT driver 103.
It is input to 104 and displayed. The displayed data is
Read by the RGB sensor 105, and the CPU 108
Is processed. In the CPU 108, the RGB sensor 105
Of the variable gain amplifier 102 is compared with the data prepared in advance in the data memory 107.
Find the control amount of. With the corrected control amount, the variable gain amplifier 102 is controlled to an appropriate amplification factor, and the correct color is displayed on the screen surface of the CRT 104.

Further, the adjustment of the brightness / contrast on the screen surface of the CRT 104 is carried out by manually operating the adjusting knob provided in the CRT device.

[0008]

However, in the above conventional example, since the color on the CRT screen is adjusted by controlling the variable gain amplifier 102 incorporated in the CRT device, the CRT 104 itself is used for color adjustment. Since it has to be configured, and the RGB sensor is used as the sensor, the cost is high.

Further, since the operator adjusts the brightness / contrast on the screen of the CRT by operating the adjusting knob according to the operator's judgment while looking at the screen, special skill is required. , It was not easy for general users to do.

In view of the above-mentioned conventional problems, the present invention provides an inexpensive display adjustment device for adjusting the color of the display of a personal computer, and at the same time, an inexpensive display adjustment device for easily adjusting the brightness and contrast of the display of the personal computer. It is an object of the present invention to provide a simple display adjustment device. Furthermore, a method for adjusting the color tone of a display device, which can realize a device for adjusting the color of the display of a personal computer at low cost, and the brightness and contrast of the display of the personal computer can be easily adjusted, and the device is also provided. An object of the present invention is to provide a brightness / contrast adjusting method for a display device which can be realized at low cost.

[0011]

In order to achieve the above-mentioned object, a display adjusting device of a first invention has a black-and-white sensor installed facing a screen surface of a display connected to a personal computer, and displays on the display. A display adjustment device for adjusting the color of the displayed data based on the output of the black-and-white sensor, the display adjustment device having a look-up table for converting image data into color data in accordance with predetermined table data. The personal computer is provided with a video circuit for generating the display data based on the above, and a plurality of color data including black and white are sequentially displayed in a predetermined area on the screen surface of the display, and the test pattern data is used as the image data. The test pattern setting means set as That the A / D converting means for converting the analog signal into a digital signal, and a signal capturing means for capturing in memory on the computer the output of the A / D converting means, the data fetched into the memory on the computer,
It is provided with a data processing means for processing based on the reference data created in advance, and a table data changing means for changing the table data of the lookup table according to the processing result of the data processing means.

In order to achieve the above-mentioned object, the display adjusting device of the second invention has a black-and-white sensor installed opposite to the screen surface of the display connected to the personal computer, and displays the display data displayed on the display. A display adjusting device that adjusts the brightness and contrast based on the output of the black and white sensor, and the display includes an adjusting unit that adjusts the brightness and contrast of the display data displayed on the display,
Display means for sequentially displaying a plurality of color data including black and white as test pattern data in a predetermined area on the screen surface of the display, and A / D conversion means for converting an analog signal output from the black and white sensor into a digital signal. , A signal fetching means for fetching the output of the A / D converting means into the memory on the personal computer, and processing the data fetched in the memory on the personal computer based on the reference data created in advance, and the processing result is defined. It is provided with processing means for outputting specified value comparison information indicating whether or not the value is exceeded, and notifying means for notifying the specified value comparison information to the outside.

In the second aspect of the invention, the notifying means may be a speaker, and the specified value comparison information may be notified to the outside by sound.

Further, in the second aspect of the invention, the notifying means may be constituted by the display, and the specified value comparison information may be notified to the outside by a character or a picture.

Further, in the second aspect of the invention, the notifying means is composed of a light emitting diode provided near the black and white sensor, and the prescribed value comparison information is notified to the outside by light emitted from the light emitting diode. You may

In the second aspect of the invention, a rewriting unit for rewriting the reference data may be provided.

In order to achieve the above object, a color tone adjusting method for a display device according to a third aspect of the present invention has a look-up table for converting image data into color data according to predetermined table data, and based on the output of the look-up table. A personal computer having a video circuit for generating display data and a display device connected to the personal computer for displaying the display data are prepared, and a black-and-white sensor is installed opposite to the screen surface of the display device. A test pattern display process in which test pattern data is set as the image data and a plurality of color data including black and white are sequentially displayed in a predetermined area on the screen surface of the display device; and an analog signal output from the black and white sensor. A / D conversion processing for converting a digital signal into a digital signal, and the A / D conversion A signal capture process to capture the digital signal obtained by the physical memory on the computer,
The data acquired by the signal acquisition process,
The data processing is performed based on the reference data created in advance, and the table data changing processing for changing the table data of the lookup table is executed according to the processing result of the data processing.

In order to achieve the above object, a brightness / contrast adjusting method for a display device according to a fourth aspect of the present invention is a personal computer for generating display data, displaying the display data, and displaying the displayed data. A display device having adjustment means for adjusting brightness and contrast is prepared, and a black and white sensor is installed opposite to the screen surface of the display device, and a plurality of color data including black and white are displayed as test pattern data on the display. The test pattern display processing for sequentially displaying in a predetermined area on the screen surface of the apparatus, the A / D conversion processing for converting an analog signal output from the black and white sensor into a digital signal, and the A / D conversion processing are obtained. Signal acquisition processing for acquiring a digital signal in the memory on the personal computer,
Specified value comparison information output processing for processing the data taken in the memory on the personal computer based on the reference data created in advance and outputting specified value comparison information indicating whether or not the processing result exceeds the specified value A notification process for notifying the specified value comparison information to the outside, and receiving the specified value comparison information by the notification process, and using the adjusting means to adjust the brightness and contrast of the display data displayed on the display device. The adjustment process for adjusting is executed.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a display adjusting apparatus according to the first embodiment of the present invention.

This display adjusting device includes a CPU 10 for controlling the system, a RAM 11 as a work area of the CPU 10, a ROM 12 for storing a program executed by the CPU 10, and a video memory for writing image data to be displayed on the display 16. 13 is the data bus 2
It is connected via 2. The video RAM 13 has, for example, 640 pixels in the horizontal direction and 480 pixels in the vertical direction, and 8 pixels per pixel.
The capacity is such that bit image data can be written.

A look-up table 14, a digital / analog (D / A) converter 15, and a display 16 are connected in series on the output side of the video RAM 13. That is, the image data (8 bits) output from the video RAM 13 is input to the lookup table 14. The look-up table 14 stores in advance table data in which the relationship between input data and output data is set as shown in FIG. 2, and image data input according to this table data is converted into digital R, G, B data. It has the function of converting to. The D / A converter 15 has a function of converting digital R, G, B data into analog R, G, B data.

Here, the video RAM 13, the look-up table 14, and the D / A converter 15 are hereinafter referred to as a video board, and the CPU 10, the RAM 11, and the ROM are mentioned.
12 and the video board are formed inside a personal computer, and the personal computer includes a disk controller, a sound board, a LAN board and the like (not shown) in addition to these components.

A black and white sensor 17 is installed opposite to the display 16, and a capture memory 19 is connected to the output side of the black and white sensor 17 via an analog / digital (A / D) converter 18. The output side of 19 is connected to the data bus 22.

The CPU 10 uses the capture memory 19
The data taken in is converted into the reference data 2 created in advance.
It is configured to process based on 0. The processing result is the data bus 22 and the table data changing means 2.
1 is supplied to the look-up table 14, and the table data of the look-up table 14 is changed according to the processing result.

The reference data 20 is a result of measuring the test data using a display which is calibrated accurately, and may be written in the ROM 12 or may be supplied by a medium such as a floppy disk.

FIG. 3 is a view showing a state in which a monochrome sensor is installed opposite to a display, and FIG. 4 is a side view of the device shown in FIG.

In FIGS. 3 and 4, 16A is a test pattern data display area on the screen surface of the display 16, 31 is a personal computer main body, 32 is a keyboard of the personal computer 31, and 33 is a signal from the black and white sensor 17 to the personal computer 31. And a cable 34 for inputting into the camera, and a camera unit 34 having a built-in black and white sensor 17.

FIGS. 5A and 5B are detailed views of the camera unit 34 shown in FIG. 3. FIG. 5A is a side view of the camera unit 34, and FIG. 5B is a front view thereof. It is a figure.

A cable 33 is drawn into the camera housing and connected to the cable 33 so that the black-and-white sensor 1
7 is attached. Then, the camera housing 34
Is set at the test pattern data display position 16A of the display 16 by the suction plate 34A during adjustment.

Next, the operation of this embodiment (method of adjusting the color tone of the display device) will be described.

First, the CPU 10 writes predetermined test pattern data in the video RAM 13 according to a program stored in the ROM 12 or a floppy disk or hard disk (not shown). The test pattern data is data in which a plurality of color data including black and white are displayed in a rectangular area for each color and are sequentially changed.

The written test pattern data is converted into corresponding digital R, G, B data according to the input-to-output table written in advance in the look-up table 14. Digital R, G, B data is D /
It is converted into analog R, G, B signals by the A converter 15 and input to the display 16, and as a result, the test pattern data is displayed on the screen surface of the display 16.

The obtained analog data is converted into a digital signal representing brightness data by the A / D converter 18 and recorded in the capture memory 19. CPU16
The table data of the look-up table 14 for displaying the measured display 16 in the same manner as the calibrated display is obtained from the data recorded in the capture memory 19 and the reference data 20, and the look-up table is obtained through the changing means 21. Write to 14.

As a result, the conventional personal computer and display can be used as they are, and the color of the screen surface of the display can be adjusted by using an inexpensive black-and-white sensor.

FIG. 6 is a block diagram showing a schematic configuration of a display adjusting apparatus according to the second embodiment of the present invention, and elements common to those in FIG. 1 are designated by the same reference numerals.

In this display adjusting device, in the device shown in FIG. 1, the display 16 is replaced with a display 16 'having an adjusting function, and further, a speaker 41 and an L connected to the data bus 22 are provided as means for notifying the user.
The ED 42 is added and the changing means 21 is removed. The adjustment function of the display 16 'is to manually adjust the brightness, contrast and the like with the adjustment knob.

The LED 42 is, for example, as shown in FIGS. 7A and 7B, the camera unit housing 3 below the black-and-white sensor 17, for example.
It is installed in 4.

Next, the operation of this embodiment (a method for adjusting the brightness / contrast of the display device) will be described.

The CPU 10 writes predetermined test pattern data in the video RAM 13 according to a program stored in the ROM 12 or a floppy disk or hard disk (not shown). The written test pattern data is converted into corresponding digital R, G, B data according to the table data previously written in the look-up table 14. Digital R, G, B
Data is converted into analog R,
The G and B signals are converted and input to the display 16 ', and as a result, the test pattern is displayed on the screen surface of the display 16'.

As in the case shown in FIG. 3, the black and white sensor 17
Are installed opposite to each other at a predetermined position on the screen surface of the display 16 ', and output the brightness information of the test pattern data displayed on the display 16' as analog data. The analog data obtained is A /
The D converter 18 converts it into a digital signal representing luminance data and stores it in the capture memory 19.

The CPU 10 determines whether the difference between the data stored in the capture memory 19 and the reference data 20 exceeds a specified value. If it exceeds the specified value, the user is notified by ringing the speaker 41. On the other hand, the user uses the display 1
Operate the adjustment knob so that the brightness and contrast of 6 ′ are within the specified values.

As a result of the operation of this adjusting knob, the brightness of the test pattern data on the display 16 'changes, the output from the black and white sensor 17 changes, and the reference data 20 is changed.
The difference between and also changes. As a result, when the difference becomes smaller than the specified value, the ringing of the speaker 41 is stopped. This allows the user to confirm that the display on the display 16 'is within the specified value.

As described above, in the present embodiment, it is possible to easily make a fine adjustment of the brightness and contrast of the display by using the adjusting knob provided on the display.

As the notification means for notifying the user, in addition to the sound of the speaker 41, the display 1
A method of displaying a character string or a pictorial drawing or the like on the 6'is possible. In this case, the user
When the adjustment knob 6'is operated and, as a result, the above-mentioned measured value falls within the specified value, the content of the character string or the picture on the display 16 'is changed to notify the user. Similarly, as a notifying means for notifying the user, L
It is also possible to turn on and off the ED 42.

When the reference data 20 is changed,
Display 16 'with the contents of the reference data 20 as numerical values
And the value is changed from the keyboard 32. The change result is stored in the RAM 11 or saved in a floppy disk or the like (not shown).

[0047]

As described in detail above, according to the display adjusting device of the first invention, a plurality of color data including black and white are sequentially displayed in a predetermined area on the screen surface of the display. Test pattern setting means for setting data as image data, A / D converting means for converting an analog signal output from the black and white sensor into a digital signal, and a signal for taking the output of the A / D converting means into a memory on a personal computer. A fetching means, a data processing means for processing the data fetched in the memory on the personal computer based on previously created reference data, and a table for changing the table data of the lookup table according to the processing result of this data processing means. Since it is equipped with data change means, you can use a conventional personal computer and display as they are, and Using an inexpensive black and white sensor, color adjustment of the display data displayed on the screen surface of the display can be performed, it is possible to achieve cost reduction of the apparatus.

According to the display adjusting device of the second invention, the display is provided with adjusting means for adjusting the brightness and contrast of the display data displayed on the display, and a plurality of color data including black and white are displayed on the screen of the display. Display means for sequentially displaying in a predetermined area on the surface, A / D conversion means for converting an analog signal output from the monochrome sensor into a digital signal, and a signal for taking the output of the A / D conversion means into a memory on a personal computer A capturing means and a processing means for processing the data captured in the memory on the personal computer based on the reference data created in advance, and outputting specified value comparison information indicating whether or not the processing result exceeds the specified value. Since the notification means for notifying the specified value comparison information to the outside is provided, for example, the adjustment provided on the display. By using the knob, you can easily make fine adjustments to the brightness and contrast of the display.Adjusting the brightness and contrast to the specified range does not require special skills and is easy for general users. It becomes possible to do.

According to the color tone adjusting method of the display device of the third aspect of the invention, the black and white sensor is installed opposite to the screen surface of the display, and the test pattern display processing, A /
Since the D conversion process, the signal acquisition process, the data process, and the table data change process are sequentially executed, it is possible to realize an implementation device that adjusts the color of the display device of the personal computer at low cost.

According to the brightness / contrast adjusting method for the display device of the fourth invention, a black and white sensor is installed opposite to the screen surface of the display, and the test pattern display process, the A / D conversion process, the signal acquisition process, and the regulation are performed. Since the value comparison information output process and the adjustment process are sequentially executed, it is possible to easily adjust the brightness and contrast of the display device of the personal computer, and it is possible to realize the implementation device at low cost. Become.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a display adjustment device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing the contents of a look-up table in the first embodiment.

FIG. 3 is a diagram showing a state in which the monochrome sensor according to the first embodiment is installed facing a display.

FIG. 4 is a side view of the device shown in FIG.

5 is a detailed view of the camera unit 34 shown in FIG.

FIG. 6 is a block diagram showing a schematic configuration of a display adjustment device according to a second embodiment of the present invention.

FIG. 7 is a diagram showing details of a camera unit including a monochrome sensor according to the second embodiment.

FIG. 8 is a block diagram showing a configuration of a conventional display device.

[Explanation of symbols]

 10 CPU 11 RAM 12 ROM 13 Video RAM 14 Look-up table 16, 16 'Display 16A Test pattern display position 17 Black-and-white sensor 18 A / D converter 19 Capture memory 20 Reference data 21 Table data changing means 31 Personal computer 32 Keyboard 33 Cable 41 Speaker 42 LED

Claims (8)

[Claims] 1. A display adjustment device having a black-and-white sensor installed opposite to a screen surface of a display connected to a personal computer, and adjusting the color of display data displayed on the display based on the output of the black-and-white sensor. In addition, the personal computer is equipped with a video circuit that has a look-up table that converts image data into color data according to predetermined table data, and that generates the display data based on the output of the look-up table. Test pattern setting means for setting the test pattern data as the image data so that a plurality of color data including the data are sequentially displayed in a predetermined area of the screen surface of the display, and an analog signal output from the black and white sensor is a digital signal. A / D conversion means for converting to A signal fetching means for fetching the output of the means into the memory on the personal computer; a data processing means for processing the data fetched into the memory on the personal computer based on the reference data created in advance; and a processing by the data processing means A display adjusting device, comprising: table data changing means for changing the table data of the lookup table according to a result. 2. A display having a black-and-white sensor installed opposite to a screen surface of a display connected to a personal computer, and adjusting the brightness and contrast of display data displayed on the display based on the output of the black-and-white sensor. An adjusting device, wherein the display is provided with adjusting means for adjusting the brightness and contrast of the display data displayed on the display, and a plurality of color data including black and white are used as test pattern data to determine a predetermined screen surface of the display. Display means for sequentially displaying in the area, A / D conversion means for converting an analog signal output from the black-and-white sensor into a digital signal, and signal acquisition for loading the output of the A / D conversion means into a memory on the personal computer Means, and data taken into the memory on the personal computer A processing unit that processes based on pre-created reference data and outputs specified value comparison information indicating whether or not the processing result exceeds a specified value, and a notification unit that notifies the specified value comparison information to the outside. A display adjusting device comprising: 3. The display adjusting apparatus according to claim 2, wherein the notifying unit is a speaker, and the specified value comparison information is notified to the outside by sound. 4. The display adjusting device according to claim 2, wherein the notifying unit is constituted by the display, and the specified value comparison information is notified to the outside by a character or a picture. 5. The notification means is composed of a light emitting diode provided near the black and white sensor, and the predetermined value comparison information is notified to the outside by light emitted from the light emitting diode. The display adjustment device according to claim 2. 6. The display adjusting device according to claim 2, further comprising a rewriting unit that rewrites the reference data. 7. A personal computer having a look-up table for converting image data into color data in accordance with predetermined table data and having a video circuit for producing display data based on the output of the look-up table, and the personal computer. A display device connected to display the display data is prepared, a black and white sensor is installed opposite to the screen surface of the display device, and test pattern data is set as the image data, and a plurality of black and white images are set. A test pattern display process for sequentially displaying color data in a predetermined area on the screen surface of the display device; an A / D conversion process for converting an analog signal output from the monochrome sensor into a digital signal; and an A / D conversion process. The signal acquisition that takes in the digital signal obtained by the processing to the memory on the personal computer And the data acquired by the signal acquisition process,
A display device, characterized by executing a data process for processing based on reference data created in advance, and a table data changing process for changing the table data of the lookup table according to a processing result of the data process. Color adjustment method. 8. A personal computer that generates display data, and a display device that displays the display data and that has an adjusting unit that adjusts the brightness and contrast of the displayed display data are prepared. A black-and-white sensor is installed opposite to the screen surface of the display device, and a plurality of color data including black and white are sequentially displayed as test pattern data in a predetermined area on the screen surface of the display device. A / D conversion processing for converting an analog signal output from the sensor into a digital signal, signal acquisition processing for loading the digital signal obtained by the A / D conversion processing into the memory on the personal computer, and memory on the personal computer The data taken in is processed based on the reference data created in advance, and the processing result is Specified value comparison information output processing for outputting the specified value comparison information indicating whether or not the specified value comparison information is output, notification processing for notifying the specified value comparison information to the outside, and the specified value comparison information by the notification processing. And a brightness / contrast adjusting method for a display device, wherein the adjusting device adjusts the brightness and contrast of the display data displayed on the display device.