JP2003058127A - Adjusting method for digital image display device, digital image display device, adjusting method for liquid crystal display device and liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust a color liquid crystal display device to properties that a user desires without using a sensor for measuring the luminance of the screen of the display device. SOLUTION: Input values to a color liquid crystal display panel and measured properties as properties of a luminance value measured beforehand are stored in a measured characteristic storage part 16. A personal computer PC reads out the measured properties that the color liquid crystal display device 100 to be adjusted stores, computes data for a conversion table to actualize input values to the color liquid crystal display panel 10 and properties desired by the user as properties of the luminance value of the color liquid crystal display panel 10 that the user desires, and corrects the conversion table 7 with the data. Consequently, the need for user's operation for attaching and detaching a luminance sensor to and from the screen of the display device is eliminated and the user does not need to store the luminance sensor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for adjusting a digital image display device, a digital image display device, a method for adjusting a liquid crystal display device, and a liquid crystal display device. More specifically, the present invention relates to a method for adjusting a digital image display device, a digital image display device, and a liquid crystal, which can adjust to a characteristic desired by a user without using a sensor for measuring the brightness of the screen of the display device. The present invention relates to a method for adjusting a display device and a liquid crystal display device.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional color liquid crystal display device 50.
It is explanatory drawing which shows the structure for 0, and the connection for user adjustment. The liquid crystal display device 500 includes a digital signal receiver 1 that receives a digital signal of a display image from a host device (personal computer or the like) PC capable of outputting a digital signal of a display image,
An A / D converter 2 for receiving an analog signal of a display image from a host device PC capable of outputting an analog signal of the display image and converting it into a digital signal, and a digital signal receiver 1
The input selection switch 3 for selecting either the digital signal via the input signal or the digital signal via the A / D converter 2 and the resolution of the input digital signal to match the resolution of the fixed color liquid crystal display panel 10. Resolution conversion unit 4 for converting the resolution as described above, and an OS for mixing an OSD (On Screen Display) signal with a digital signal of an image
A D signal synthesizing unit 6, a conversion table 7 for converting the input value of the digital signal so that the brightness of the color liquid crystal display panel 10 with respect to the input value of the digital signal has a characteristic desired by the user, that is, a characteristic desired by the user, and a color. A grayscale enlarging unit 8 for performing grayscale enlarging processing (dither processing or the like) for enlarging the effective grayscale number of display brightness over the grayscale number of the input value of the digital signal to the liquid crystal display panel 10, and a color liquid crystal display. A panel 10, a backlight 11, a backlight driving unit 53 that drives the backlight 11, a microprocessor 14 that controls the operation of the color liquid crystal display device 500,
It is provided with a serial interface 15 for performing communication for control with a host device PC.

The gradation number of the input value of the digital signal to the color liquid crystal display panel 10 is, for example, 8 bits, and the gradation number of the input value of the image from the higher-level device PC is, for example, 8 bits. In order to realize more faithfully, the gradation number of the output value is expanded to 10 bits in the conversion table 7, and the effective gradation number is expanded to 10 bits in the gradation expanding section 8.
The data of 8 bits is converted by using a temporal diffusion method or a spatial diffusion method and input to the color liquid crystal display panel 10.

When the user adjusts the color liquid crystal display device 500, the color brightness sensor Cs is attached to the front surface of the color liquid crystal display panel 10. Then, the color liquid crystal display device 500 and the color luminance sensor Cs are connected to the host device PC. Then, the higher-level device PC and the color liquid crystal display device 500 cooperate to execute the adjustment processing of the color liquid crystal display device 500.

FIG. 8 is a flowchart showing the adjustment processing of the color liquid crystal display device 500. In addition, this processing is performed by R, G,
Do each color of B. In step S1, the user
The desired gamma characteristic value and white balance are input to the host PC. In step S2, the host device PC
A user-desired characteristic is calculated based on the gamma characteristic value and white balance given by the user.

In step S3, the upper-level device PC inputs an input value which gives the maximum brightness value according to the user's desired characteristic, for example, "25".
5 "is input to the color liquid crystal display device 500 as a digital signal of a display image. In step S4, the microprocessor 14 of the color liquid crystal display device 500 sets the input value, for example," 255 "to the color liquid crystal display panel 10 as the maximum brightness. The conversion table 7 is rewritten so as to be converted into an output value such as “1023.” In step S5,
The upper-level device PC measures the brightness of the color liquid crystal display panel 10 with the color brightness sensor Cs and notifies the microprocessor 14 of the color liquid crystal display device 500 of this. The microprocessor 14 sets the measured value of the brightness of the color liquid crystal display panel 10 to the maximum brightness value of the characteristic desired by the user.
The brightness of the backlight 11 is adjusted.

In step S6, the upper-level device PC inputs an input value, for example, "0", which gives the minimum brightness value in the user's desired characteristic.
The color liquid crystal display device 5 is used as a digital signal of a display image.
Enter 00 in order. In step S7, the host device PC
Is a color liquid crystal display panel 10 using a color luminance sensor Cs.
Luminance is measured, and this is notified to the microprocessor 14 of the color liquid crystal display device 500. The microprocessor 14 rewrites the conversion table 7 so as to convert the input value, eg, “0”, into the output value, eg, “50” such that the measured value of the brightness of the color liquid crystal display panel 10 becomes the minimum brightness value of the user's desired characteristic. . Steps S6 and S7
The conversion table 7 is repeated for input values, such as "1" to "254", which give an intermediate luminance value according to the characteristics desired by the user.
To complete.

By the above adjustment processing, the luminance characteristic of the color liquid crystal display panel 10 with respect to the input value of the digital signal becomes the characteristic desired by the user. That is, the color liquid crystal display device 5
00 can be adjusted to the gamma characteristic value and white balance desired by the user.

[0009]

In the above conventional color liquid crystal display device 500 and the adjusting method thereof, the adjustment itself can be automatically advanced, but before the adjustment,
A color brightness sensor C is provided on the front surface of the color liquid crystal display panel 10.
s is attached, and the color luminance sensor Cs is connected to the host device P.
It is necessary to connect to C, and after the adjustment, it is necessary to remove the color brightness sensor Cs from the front surface of the color liquid crystal display panel 10 and disconnect the color brightness sensor Cs from the host device PC. Further, the user needs to store the color luminance sensor Cs. However, the user may perform the above work, or the color brightness sensor C
Storing s by the user has a problem in that the user is burdened. Therefore, an object of the present invention is to provide a method for adjusting a digital image display device, a digital image display device, and a liquid crystal that can adjust the characteristics desired by a user without using a sensor that measures the brightness of the screen of the display device. An object is to provide a method for adjusting a display device and a liquid crystal display device.

[0010]

According to a first aspect of the present invention, in a digital image display device, an actually measured characteristic which is a characteristic of an input value to a digital image display device and a luminance value measured in advance is stored. A conversion table for converting the input value to the digital image display device into the input value to the digital image display device so as to realize the user's desired characteristic which is the characteristic of the input value to the digital image display device and the luminance value desired by the user. There is provided a method for adjusting a digital image display device, which is characterized in that it is created and an input to the digital image display device is applied to the digital image display device via this conversion table. In the above configuration, the digital image display device is a device that displays an image by digital input, and is, for example, a liquid crystal display panel or a plasma display panel. The digital image display device means a display device using a digital image display device. In the adjusting method of the digital image display device according to the first aspect, the actually measured characteristic which is the characteristic of the input value to the digital image display device and the luminance value measured in advance is stored in the digital image display device. Then, if the actually measured characteristics stored in the digital image display device to be adjusted are read, a conversion table for realizing the desired characteristics of the user can be created without using a sensor for measuring the screen brightness. Therefore, it is not necessary for the user to attach / remove the brightness sensor to / from the screen of the display device, and it is not necessary for the user to store the brightness sensor.

According to a second aspect of the present invention, in the method of adjusting a digital image display device having the above structure, the digital image display device and a computer are connected to each other, and the measured characteristic is output from the digital image display device to the computer. The conversion table data is calculated by a computer based on the measured characteristics and the user desired characteristics and input to the digital image display device, and the conversion table is created on the digital image display device based on the conversion table data. A method of adjusting a digital image display device is provided. In the adjusting method for a digital image display device according to the second aspect, an external computer can share the function of substantially creating a conversion table for realizing the user-desired characteristics. Compared to
The configuration of the digital image display device can be simplified.

In a third aspect, the present invention provides a digital image display device, a conversion table for converting an input value to the digital image display device into an input value to the digital image display device, and a conversion table for the digital image display device. An actual measurement characteristic storage unit that stores an actual measurement characteristic that is a characteristic of an input value and a luminance value measured in advance, an interface unit that outputs the actual measurement characteristic to the outside and receives conversion table data input from the outside, and the conversion table. There is provided a digital image display device, comprising: a conversion table creating means for creating the conversion table based on the data for use. In the digital image display device according to the third aspect, the adjusting method for the digital image display device according to the second aspect can be preferably implemented.

According to a fourth aspect of the present invention, according to the present invention, an actually measured characteristic, which is a characteristic of an input value to a liquid crystal display panel and a luminance value measured in advance, is stored in the liquid crystal display device, and a liquid crystal display device desired by a user is stored. A conversion table for converting the input value to the liquid crystal display device into the input value to the liquid crystal display panel is realized so as to realize the user's desired characteristics of the input value and the brightness value, and the liquid crystal display is made through this conversion table. Provided is a method for adjusting a liquid crystal display device, which comprises applying an input to the device to a liquid crystal display panel. In the liquid crystal display device adjusting method according to the fourth aspect, the liquid crystal display device stores the actually measured characteristic which is the characteristic of the input value to the liquid crystal display panel and the luminance value measured in advance. Then, if the actually measured characteristics stored in the liquid crystal display device to be adjusted are read, a conversion table for realizing the user desired characteristics can be created without using a sensor for measuring the screen brightness. Therefore, it is not necessary for the user to attach / remove the brightness sensor to / from the screen of the display device, and it is not necessary for the user to store the brightness sensor. The color liquid crystal display device will be described in detail.
The input characteristics of G and B and the measured characteristics which are the characteristics of the brightness values of R, G and B measured in advance are stored in the color liquid crystal display device, and the R and R values for the color liquid crystal display device desired by the user are stored.
The input values of R, G, and B to the color liquid crystal display device are input to the color liquid crystal display panel so as to realize the user-desired characteristics that are the characteristics of the input values of G and B and the brightness values of R, G, and B. A conversion table for converting the R, G, and B input values is created, and the R, G, and B inputs to the color liquid crystal display device are added to the color liquid crystal display panel via this conversion table.

According to a fifth aspect of the present invention, in the method of adjusting a liquid crystal display device having the above-mentioned structure, the brightness of the backlight at the time of measuring the actually measured characteristics is measured and stored in the liquid crystal display device. Provided is a method for adjusting a liquid crystal display device, characterized by measuring the brightness of a backlight and correcting the contents of a conversion table based on the difference from the stored brightness. In the liquid crystal display device adjusting method according to the fifth aspect, since the contents of the conversion table are corrected according to the brightness variation of the backlight, the user's desired characteristics can be realized even if the backlight changes with time. To describe the case of a color liquid crystal display device in detail, each brightness of R, G, and B of the backlight at the time of measuring the actually measured characteristics is measured and stored in the color liquid crystal display device, and then the backlight is measured. R, G, and B luminances are measured, and the contents of the conversion table are corrected based on the difference from the stored luminance. In this case, since the contents of the conversion table are corrected according to the color variation of the backlight, the user's desired characteristics can be realized even if there is a color change with time of the backlight.

According to a sixth aspect of the present invention, in the method of adjusting a liquid crystal display device having the above structure, the liquid crystal display device and a computer are connected to each other, and the measured characteristic is output from the liquid crystal display device to the computer. It is characterized in that the conversion table data is calculated by a computer based on the given user desired characteristics and input to the liquid crystal display device, and the conversion table is created by the liquid crystal display device based on the conversion table data. A method for adjusting a liquid crystal display device is provided. In the adjusting method for a liquid crystal display device according to the sixth aspect, an external computer can share the function of substantially creating a conversion table for realizing the user-desired characteristics. In comparison, the structure of the liquid crystal display device can be simplified.

In a seventh aspect, the present invention provides the method for adjusting a liquid crystal display device having the above structure, wherein the computer is
Provided is a gamma characteristic value and a white balance from a user, and based on the gamma characteristic value and the white balance, a user desired characteristic is obtained. In the adjusting method for a liquid crystal display device according to the seventh aspect, an external computer can share the function of substantially creating a conversion table for realizing a user-desired characteristic. In comparison, the structure of the liquid crystal display device can be simplified.

According to an eighth aspect, the present invention provides a liquid crystal display panel, a conversion table for converting an input value to the liquid crystal display device into an input value to the liquid crystal display panel, the input value to the liquid crystal display panel and the input value in advance. Based on the conversion table data, an actual measurement characteristic storage unit that stores the actual measurement characteristic that is the characteristic of the measured luminance value, an interface unit that outputs the actual measurement characteristic to the outside and receives conversion table data input from the outside, And a conversion table creating means for creating the conversion table. In the liquid crystal display device according to the eighth aspect, the method for adjusting a liquid crystal display device according to the sixth aspect can be preferably implemented. The color liquid crystal display device will be described in detail. R, G, and B input values to the color liquid crystal display panel and the color liquid crystal display device are respectively input to the color liquid crystal display panel. A conversion table for converting into a value, an actual measurement characteristic storage means for storing an actual measurement characteristic which is a characteristic of each input value of R, G, B to the color liquid crystal display panel and each luminance value of R, G, B measured in advance. A color liquid crystal comprising: interface means for outputting the measured characteristics to the outside and receiving conversion table data input from the outside; and conversion table creating means for creating the conversion table based on the conversion table data. It becomes a display device.

In a ninth aspect, the present invention provides a liquid crystal display panel, a conversion table for converting an input value to the liquid crystal display device into an input value to the liquid crystal display panel, and a backlight when the conversion table is created. A backlight reference color storage unit that stores the brightness, a backlight brightness measurement unit that measures the brightness of the backlight, and a conversion table of the conversion table based on the difference between the stored brightness of the backlight and the measured brightness of the backlight. Provided is a liquid crystal display device comprising: a correction unit that corrects the contents. In the liquid crystal display device according to the ninth aspect, since the contents of the conversion table are corrected according to the brightness variation of the backlight, the user's desired characteristics can be realized even if the backlight changes with time. In addition,
When describing in detail about the case of a color liquid crystal display device,
Color liquid crystal display panel, R for color liquid crystal display device,
The input values of G and B are converted to R, G, and
A conversion table for converting each input value of B, a backlight reference color storage unit for storing each brightness of R, G, B of the backlight when the conversion table is created, and a conversion table of the R, G, B of the backlight. Color liquid crystal display device comprising backlight brightness measuring means for measuring each brightness and correction means for correcting the contents of the conversion table based on the difference between the stored backlight brightness and the measured backlight brightness. Becomes In this case, since the contents of the conversion table are corrected according to the color variation of the backlight, the user's desired characteristics can be realized even if there is a color change with time of the backlight.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited to this.

FIG. 1 is an explanatory diagram showing a configuration of a color liquid crystal display device 100 according to an embodiment of the present invention and connections for user adjustment. The liquid crystal display device 100 is a digital signal receiver 1 that receives a digital signal of a display image from a higher-level device PC that can output a digital signal of a display image.
And a host device PC capable of outputting an analog signal of a display image
A / D converter 2 for receiving an analog signal of a display image from the display device and converting it into a digital signal, and a digital signal or A / D converter 2 via a digital signal receiver 1.
An input selection switch 3 for selecting any of the digital signals via the, and a resolution conversion unit 4 for converting the resolution of the input digital signal so as to match the resolution of the fixed color liquid crystal display panel 10. An OSD signal synthesizing unit 6 that mixes an OSD signal with an image digital signal;
Color liquid crystal display panel 1 for input value of digital signal
The conversion table 7 for converting the input value of the digital signal so that the luminance of 0 becomes the characteristic desired by the user, that is, the characteristic desired by the user, and the number of gradations of the input value of the digital signal to the color liquid crystal display panel 10 A gradation enlarging unit 8 that performs gradation enlarging processing for enlarging the number of effective gradations of display brightness;
The liquid crystal display panel 10, the backlight 11, the backlight brightness sensor 12 for measuring the brightness of the backlight 11, the backlight drive unit 13 for driving the backlight 11, and the operation of the color liquid crystal display device 500 are controlled. The microprocessor 14, the serial interface 15 for communication with the host PC, and the input values of R, G, B to the color liquid crystal display panel 10 and the brightness values of R, G, B measured in advance. The actual measurement characteristic storage unit 16 that stores the actual measurement characteristic that is the characteristic of

The gradation number of the input value of the digital signal to the color liquid crystal display panel 10 is, for example, 8 bits, and the gradation number of the input value of the image from the higher-level device PC is, for example, 8 bits. In order to realize more faithfully, the gradation number of the output value is expanded to 10 bits in the conversion table 7, and the effective gradation number is expanded to 10 bits in the gradation expanding section 8.
The data of 8 bits is converted by using a temporal diffusion method or a spatial diffusion method and input to the color liquid crystal display panel 10.

When the user adjusts the color liquid crystal display device 100, the color liquid crystal display device 100 is connected to the host device PC. Then, the higher-level device PC and the color liquid crystal display device 100 cooperate to execute the adjustment processing of the color liquid crystal display device 100.

FIG. 2 is a conceptual diagram of the actual measurement characteristics stored in the actual measurement characteristic storage unit 16. The actual measurement characteristic is the gradation expansion unit 8
R, G, input to the color liquid crystal display panel 10 via
Each input value V of B and the measurement result R,
The brightness values Kv of G and B, and the brightness values BL_R, BL_G, and BL_B of R, G, and B of the backlight at the time of the measurement.

FIG. 3 is a flow chart showing the adjustment processing of the color liquid crystal display device 100. In addition, this process is R, G,
Do each color of B. In step P1, the user
The desired gamma characteristic value and white balance are input to the host PC.

In step P2, the higher-level device PC calculates the user-desired characteristic based on the gamma characteristic value and the white balance given by the user. FIG. 4 is a conceptual diagram of user-desired characteristics. The user-desired characteristics are the input values U of R, G, and B input to the color liquid crystal display device 100.
And R, G, and B luminance values Ku desired by the user.

Returning to FIG. 3, in step P3, the higher-level device PC reads out the measured characteristics from the color liquid crystal display device 100.

At step P4, the host device PC takes out the pair of the input value U of the user-desired characteristic and the luminance value Ku, obtains the input value V of the actually measured characteristic corresponding to the luminance value Ku, and outputs the input value U as the output value. Obtain conversion table data for conversion into V. For example, the input value U = 100 and the brightness value Ku = 7 in FIG.
The pair of 2 is taken out, the input value V = 101 of the measured characteristic of FIG. 2 corresponding to the brightness value Ku = 72 is obtained, and the input value U = 1
The conversion table data for converting 00 into the output value V = 101 is obtained. In this example, since the same luminance value Kv = 72 as the luminance value Ku = 72 is in the actually measured characteristic of FIG. 2, the input value V = 101 is immediately obtained, but the same luminance value Kv as the luminance value Ku is shown in FIG. If the measured characteristic is not found, the input value V is calculated by interpolation calculation.

In step P5, the host computer PC passes the conversion table data to the color liquid crystal display device 100.
The color liquid crystal display device 100 creates the conversion table 7 based on the conversion table data. FIG. 5 is a conceptual diagram of the conversion table 7.

By the above adjustment processing, the characteristic of the brightness of the color liquid crystal display panel 10 with respect to the input value of the digital signal becomes the characteristic desired by the user. That is, the color liquid crystal display device 100 can be adjusted to the gamma characteristic value and the white balance desired by the user without using a sensor (Cs in FIG. 7) for measuring the brightness of the screen of the color liquid crystal display panel 10.

FIG. 6 is a flow chart showing a correction process executed by the color liquid crystal display device 100 periodically or at an arbitrary time. In step H1, the microprocessor 14 reads the R, G, and B brightness values BL_R, BL_G, and BL_B of the backlight 11 from the measured characteristic storage unit 16. In step H2, the microprocessor 14 adjusts the backlight 11 via the backlight driving unit 13 so as to approach the read brightness values BL_R, BL_G, and BL_B. In step H3, the microprocessor 14 measures the color of the backlight 11 with the backlight brightness sensor 12.

At step H4, the microprocessor 1
In step 4, the read luminance values BL_R, BL_G, and BL_B are compared with the measured color, and if the difference is within the allowable range, the process ends (the current contents of the conversion table are maintained). If the difference is larger than the allowable range, the process proceeds to step H5.

At step H5, the contents of the conversion table 7 are corrected so as to cancel the difference. For example, if the measured color is reddish from the read brightness values BL_R, BL_G, and BL_B, the contents of the conversion table 7 are corrected so that the brightness of R is lower than that of G and B. Then, the process ends.

By the above correction process, the user's desired characteristics can be realized even if there is a change in color of the backlight 11 with time.

When the display image is an analog signal,
Since the analog output circuit of the host device PC has variations in characteristics, the analog signal also has variations. Therefore, the A / D converter 2 is adjusted in order to absorb the variation in the analog signal, but if this is not sufficient, the microprocessor 14 corrects the content of the conversion table 7 to eliminate the variation in the analog signal. Absorb.

Another embodiment is shown below. (1) User desired characteristics may be input to the color liquid crystal display device 100 via the host device PC, and the microprocessor 14 may calculate conversion table data. (2) The characteristics desired by the user may be directly input to the color liquid crystal display device 100, and the microprocessor 14 may calculate the conversion table data. In this case, the host device PC becomes unnecessary. (3) The color of the backlight 11 is changed to the color liquid crystal display device 10.
The conversion table data may be corrected by sending the data from 0 to the higher-level device PC. (4) The present invention can be applied to a monochrome liquid crystal display device in the same manner as above. (5) The present invention can be applied to digital image display devices (plasma display devices, etc.) other than the liquid crystal display device in the same manner as described above.

[0036]

According to the adjusting method of the digital image display device, the digital image display device, the adjusting method of the color liquid crystal display device, and the color liquid crystal display device of the present invention, a sensor for measuring the brightness of the screen of the display device is used. The digital image display device or the color liquid crystal display device can be adjusted to the characteristics desired by the user without the need.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a color liquid crystal display device according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing measured characteristics according to an embodiment of the present invention.

FIG. 3 is a flowchart showing an adjustment process according to an embodiment of the present invention.

FIG. 4 is a conceptual diagram showing user-desired characteristics.

FIG. 5 is a conceptual diagram showing a conversion table.

FIG. 6 is a flowchart showing a correction process according to the embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a conventional color liquid crystal display device.

FIG. 8 is a flowchart showing a conventional adjustment process.

[Explanation of symbols]

7 conversion table 10 color liquid crystal display panel 11 backlight 12 Backlight brightness sensor 13 Backlight drive 14 microprocessors 15 Serial interface 16 Measurement characteristics storage 100 color liquid crystal display PC host device

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G09G 3/20 G09G 3/20 642Z 670 670H 670Q H04N 5/66 102 H04N 5/66 102B F term (reference) 2H093 NC42 NC50 NC55 NC62 ND07 5C006 AA11 AA22 AF13 AF46 AF47 AF51 AF52 AF53 BB11 BF09 BF14 BF15 BF39 EA01 EB01 EB04 5C058 AA06 AB03 BA05 BA29 BB14 5C080 AA10 BB05 CC03 DD03 DD15 JJ28 EE28 JJ02

Claims (9)

[Claims] 1. An input value to a digital image display device and a measured characteristic which is a characteristic of a luminance value measured in advance are stored in a digital image display device, and the input value to the digital image display device and the luminance desired by the user are stored. A conversion table for converting the input value to the digital image display device into the input value to the digital image display device so as to realize the user's desired property, which is the characteristic of the value, is created, and the conversion table is used to convert the input value to the digital image display device. A method for adjusting a digital image display device, characterized in that the input of the above is added to a digital image display device. 2. The method of adjusting a digital image display device according to claim 1, wherein the digital image display device and a computer are connected to each other, and an actually measured characteristic is output from the digital image display device to the computer. The conversion table data is calculated by a computer based on the user desired characteristics and input to the digital image display device, and the conversion table is created by the digital image display device based on the conversion table data. Adjustment method of digital image display device. 3. A digital image display device, a conversion table for converting an input value to the digital image display device into an input value to the digital image display device, an input value to the digital image display device and a brightness value measured in advance. Measurement characteristic storage means for storing the measured characteristic which is the characteristic of the conversion table, interface means for outputting the measured characteristic to the outside and receiving conversion table data input from the outside, and the conversion table based on the conversion table data. And a conversion table creating means for creating the digital image display device. 4. The characteristics of the input value and the brightness value which the user desires are stored in the liquid crystal display device by storing the actually measured characteristics which are the characteristics of the input value to the liquid crystal display panel and the brightness value measured in advance. The conversion table for converting the input value to the liquid crystal display device into the input value to the liquid crystal display panel so as to realize the user desired characteristic is created, and the input to the liquid crystal display device is input through the conversion table. A method of adjusting a liquid crystal display device, comprising: 5. The method for adjusting a liquid crystal display device according to claim 4, wherein the brightness of the backlight at the time of measuring the actually measured characteristics is measured and stored in the liquid crystal display device, and thereafter,
A method of adjusting a liquid crystal display device, which comprises measuring the brightness of a backlight and correcting the contents of a conversion table based on the difference from the stored brightness. 6. The method for adjusting a liquid crystal display device according to claim 4, wherein the liquid crystal display device and a computer are connected to each other, and the measured characteristic is output from the liquid crystal display device to the computer to give the measured characteristic. A liquid crystal display, characterized in that a conversion table data is calculated by a computer based on the user desired characteristics and input to a liquid crystal display device, and the conversion table is created by the liquid crystal display device based on the conversion table data. Display device adjustment method. 7. The liquid crystal display device adjusting method according to claim 6, wherein the computer is provided with a gamma characteristic value and a white balance by the user, and based on the gamma characteristic value and the white balance, obtains the user desired characteristic. Liquid crystal display device adjustment method. 8. A liquid crystal display panel, a conversion table for converting an input value to the liquid crystal display device into an input value to the liquid crystal display panel, a characteristic of an input value to the liquid crystal display panel and a luminance value measured in advance. Actual measurement characteristic storage means for storing actual measurement characteristics, interface means for outputting the actual measurement characteristics to the outside and receiving conversion table data input from the outside, and conversion for creating the conversion table based on the conversion table data A liquid crystal display device comprising a table creating means. 9. A liquid crystal display panel, a conversion table for converting an input value to the liquid crystal display device into an input value to the liquid crystal display panel, and a backlight reference color for storing the brightness of the backlight when the conversion table is created. A storage unit, a backlight brightness measuring unit that measures the brightness of the backlight, and a correction unit that corrects the contents of the conversion table based on the difference between the stored brightness of the backlight and the measured brightness of the backlight. A liquid crystal display device comprising: