JPH11133939A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the adjusting accuracy while facilitating the adjustment by dividing an adjustable screen into plural parts, and changing size and phase of each screen so as to select the optimal adjustable screen. SOLUTION: A microcomputer 9 measures cycle of the horizontal synchronous signal Hsync and vertical synchronous signal Vsync of the input image signal so as to discriminate a standard, and collates with the data of a ROM 91 so as to obtain the regulated value of the analog image signal, and divides an image screen into plural areas, and changes set value of a PLL circuit 6, a delay circuit 7 and a color converting circuit 10 in each area so as to change size, phase and white balance. Furthermore, the screen is divided into six areas in the vertical direction, and hypoploid of the PLL circuit 6 is changed per each area so that size is changed from 796 dots to 806 dots in each area. Framing and letter display are performed in each area by an OSP circuit 4 so as to support the discrimination of a user, and a user selects the optimal size area on the basis of the screen display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a display device such as a liquid crystal projector, and to a user adjustment support function of the display device.

[0002]

2. Description of the Related Art In recent years, personal computers (hereinafter referred to as PCs) have become widespread with the development of graphical interfaces such as Windows, and presentations whose screens are enlarged and projected by a liquid crystal projector or the like have been actively performed.

Generally, an output video signal of a PC is a VGA (Vi
deo Graphics Array), SVGA (Super Video Graphi)
cs Array), it is roughly classified first by the number of screen display pixels. For example, VGA is horizontal 640 dots and vertical 480
Line and SVGA are 800 dots horizontally and 600 lines vertically. In SVGA, the total number of horizontal dots (hereinafter referred to as size) and the total number of vertical lines are various, but these are VESA (Video Electronics Standards Assosiatio).
The size is determined by the vertical and horizontal frequencies of the video signal.

On the other hand, since there are various standards for the output video signal of the PC, when displaying on a matrix display device such as a liquid crystal projector or performing signal processing in a memory,
The horizontal synchronizing signal is converted to PLL by each video signal.
It is necessary to generate a dot clock that matches the size of the video signal by multiplying the size by the number. In addition, since the blanking width differs depending on the video signal, it is necessary to change the timing at which the video signal is started to be written to the matrix display device or the memory for each video signal and to display the video signal on the screen of the matrix display device or the like without missing the video signal. .

Therefore, when a certain video signal is input, a matrix display device such as a liquid crystal projector detects the vertical / horizontal frequency of the input signal, determines the standard of the input signal, and determines a size corresponding to the signal standard. The settings such as the screen display position are automatically performed by a microcomputer or the like. The settings in the microcomputer or the like include color adjustment such as phase and contrast in addition to size and screen display position. The phase is the timing between the dot clock generated by multiplying the horizontal synchronization signal by a PLL or the like and the input video signal sampled with the dot clock. If this phase is not optimal, the input video signal cannot be sampled correctly. The character information of the input video signal appears blurred.

[0006]

[0005] Depending on the PC, the size and display position of the output video signal may differ from the standard value, if not significantly. Matrix display devices such as liquid crystal projectors detect vertical and horizontal frequencies, determine the video signal as a certain standard, and set the size, screen display position, etc., but the size, screen display position, etc. are different from the standard values. Since it cannot be discriminated that the screen has been moved, the screen remains shifted. In this case, it is necessary for the user to manually adjust the size while viewing the screen.

Some liquid crystal projectors do not have data corresponding to all signals of the VESA standard in order to reduce the capacity of the microcomputer. You may have shared. In that case, the setting value is automatically changed to a different value depending on the signal, so that the user needs to manually adjust the size and the like.

Further, the setting of the phase, which is the timing of the dot clock and the video signal, does not depend on the standard of the signal, and the optimum value changes depending on the configuration of the internal circuit of the liquid crystal projector and the like and the usage conditions such as the ambient temperature. Therefore, even if the liquid crystal projector or the like sets the phase to the reference value, there is a case where the phase is shifted, and in this case, the user needs to manually adjust the phase again. In addition to those that do not depend on the signal standard, there is color adjustment such as contrast.

However, when the user adjusts these,
The screen display position is relatively easy to adjust, but it is difficult to know how to adjust the size and phase, etc., to achieve the optimal state, and it can be seen that the presentation is performed with the adjustment shifted.

To solve the above problem, Japanese Patent Laid-Open No. 5093/1990 discloses a circuit which detects a change point of a video signal and automatically performs an optimal phase adjustment. It is not.

However, in this prior art, a digital video signal is assumed as an input signal, and no consideration is given to an analog video signal. Further, only phase adjustment is supported, and adjustment of other sizes and the like is not considered.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is intended to assist a user of a matrix display device such as a liquid crystal projector in an optimum state.

[0013]

In order to adjust the size, phase, etc. of a liquid crystal projector, an adjustment screen is divided into a plurality of screens, the size, phase, etc. of each screen are changed, and an optimum adjustment screen is selected. Thus, the adjustments can be arranged side by side on one screen and compared for judgment, and the adjustment of the size, the phase, and the like can be easily performed.

[0014]

FIG. 1 shows a first embodiment of the present invention.

The feature of this embodiment is that when adjusting the size, phase, etc. of a matrix display device such as a liquid crystal projector, the adjustment screen is divided into a plurality of screens, and the size, phase, etc. of each screen are changed to optimize the adjustment. By selecting an adjustment screen, the size, phase, and the like can be easily adjusted.

FIG. 1 is a block diagram showing a first embodiment of the present invention, in which an AD converter 1, a memory 2, a DA converter 3, O
SD circuit 4, crystal oscillator 5, PLL circuit 6, delay circuit 7,
It comprises a memory control circuit 8, a microcomputer 9, and a color conversion circuit 10. The microcomputer 9 has a ROM 91 for storing various set values.
Built-in.

The operation of this embodiment will be briefly described with reference to FIG.

The microcomputer 9 measures and calculates the cycle of the horizontal synchronizing signal Hsync and the vertical synchronizing signal Vsync of the input analog video signal, determines the standard thereof, and compares the standard with the data in the built-in ROM 91 to determine the input analog video signal. Determine default values such as the total number of horizontal pixels. And from this result, PLL
The microcomputer 9 sets the multiple of the circuit 6, the delay amount of the delay circuit 7, the set value of the memory control circuit 8, and the like. PLL circuit 6
When a multiple is set, a dot clock is generated.
After the dot clock is delayed by the delay circuit 7,
It is supplied to the D converter 1 as a sampling clock, and is supplied to the memory control circuit 8 as a write clock. The delay circuit 7 is a circuit for adjusting the phases of the dot clock and the video signal.

The memory control circuit 8 generates a write control signal for the memory 2 according to the dot clock, and generates a read control signal for the memory 2 according to the read clock supplied from the crystal oscillator 5. In FIG. 1, the crystal oscillator 5 is used to generate the read clock, but a clock generator such as a PLL may be used.

The memory 2 receives the control signal from the memory control circuit 8, takes in the digital video signal from the AD converter 1, and outputs the digital video signal to the DA converter 3. The memory 2 mainly performs setting of a screen display position of a video signal, refresh rate conversion, screen enlargement / reduction processing, and the like. The DA converter 3 converts the digital video signal into an analog signal, and the OSD circuit 4 adds video such as characters and graphics to the input video signal. The color conversion circuit 10 adjusts the contrast, brightness, white balance, and the like of the video signal.

Although the OSD circuit 4 is an analog addition circuit and is arranged after the DA converter 3, it may be arranged before the AD converter 1. If an OSD circuit for digital addition is used, the A / D converter and the memory 2 or the memory and the 2-DA
It may be provided between the converters 3.

Here, the microcomputer 9 divides the image screen into a plurality of areas, and changes the set values of the PLL circuit 6, the delay circuit 7, the color conversion circuit 10 and the like in each area to change the size, phase, white balance, and the like. Let it. FIG. 2 shows an example of the size adjustment, for example, when the total number of horizontal pixels is 80 in the input signal.
0, a case where a VGA signal of 525 vertical total lines is input.

The microcomputer 9 divides the screen into six regions in the vertical direction, and increases the size of each region from 796 dots to 8
The multiple of the PLL circuit 6 is changed for each area so as to change to 06 dots. The OSD circuit 4 displays a frame (101 to 105 in the figure) and a character display (111 to 111 in the figure) in each area.
116) to assist the user in making a distinction. The user only has to look at this screen and select an area having an optimal size.

FIG. 3 shows a flowchart of the processing by the microcomputer 9 at this time. First, the microcomputer 9 determines the level of the input video signal,
The period of the vertical synchronizing signal is measured and calculated, and a predetermined value such as the size of the input video signal is determined (step 1001), and this is set in the PLL circuit 6 as a basic value (step 100).
2). For example, if it is determined that a VGA signal having a total number of horizontal pixels of 800 and a total number of vertical lines of 525 has been input, the multiple of the PLL circuit 6 is set to 800.

Next, the apparatus is in a state of waiting for a size adjustment command from the user (step 1003). When a command is received (step 1003), the OSD circuit 4 creates a frame (101 to 105 in FIG. 2) for dividing each area as shown in FIG. Characters, graphics, etc. indicating the contents and conditions of each area (111 to 11 in FIG. 2)
6) is displayed (step 1004). This OSD circuit
The microcomputer 9 corresponds to the area divided by 4 by the PLL.
The multiple is transmitted to the circuit 6. The multiple 796 is transmitted to the area indicated as area 1 on the screen (step 1005), and this is sequentially performed up to area 6 (step 1).
006).

The user looks at this adjustment screen and selects an optimal size. When an instruction to select area 1 is received from the user, a multiple 796 (step 1007) is transmitted to PLL circuit 6, and when an instruction to select area 6 is received, multiple 806 (step 1008) is transmitted. When the transmission is completed, the OSD display is released (step 100).
9) End the size adjustment.

The PL in the above steps 1005 to 1006
The timing for changing the multiple of the L circuit 6 will be described with reference to FIG. For example, during the blank period of the first horizontal synchronizing signal from the fall of the vertical synchronizing signal, the microcomputer 9
The multiple 796 is transmitted to the circuit 6. The PLL circuit 6 receives this and generates a dot clock of size 796 during the period of the area 1. Next, the microcomputer 9 transmits a multiple 798 to the PLL circuit 6 during the blank period of the first horizontal synchronization signal in the area 2, for example. PLL circuit 6
Receives this and generates a dot clock of size 798 during the period of area 2. Similarly, this operation is repeated up to area 6. By setting the multiple of the PLL circuit 6 at the above timing, the size can be changed for each of a plurality of regions of the screen.

Here, the point of determining the optimum size will be described. If the size is shifted, a portion that coincides with a portion where the phase which is the timing of the dot clock and the video signal is shifted is periodically repeated in the horizontal direction. As shown in FIG. 5, the portion having this phase shift is a thin band (50 in the figure) with respect to the original screen.
The picture looks like 1). Therefore, it is only necessary to select an area where a thin band does not appear (502 in the figure). However, this thin band appears clearly depending on the pattern of the input signal,
May appear only dimly. Even when the image appears only in a blur, a plurality of size adjustment screens are arranged side by side in one screen and compared, so that the presence or absence of a thin band can be more easily determined.

In this embodiment, the case of size adjustment has been described as an example. However, this embodiment is effective not only for size adjustment but also for all adjustments such as phase adjustment and contrast / brightness adjustment. For example, in the phase adjustment, if the phase is not optimum, the input video signal cannot be sampled correctly, and character information of the input video signal appears blurred. Therefore, an area in which character information and the like are not blurred may be selected.

In this embodiment, the size adjustment amount is changed every two in each area, but the change amount may be arbitrary. Further, when there is no optimal screen in one screen, the microcomputer 9 can increment or decrement the adjustment amount.
Should be processed.

Here, in this embodiment, the number of divided screens is six in the vertical direction. However, the number of divided screens and the direction of division may be freely determined, and may be set so that the user can adjust the screen most easily.

As described above, by using the present embodiment, different adjustment values can be arranged side by side in one screen and compared for judgment, and adjustment can be facilitated and adjustment accuracy can be improved.

FIG. 6 shows a second embodiment of the present invention.

The feature of this embodiment is that the adjustment screen is divided into a plurality of parts and the optimum adjustment screen is selected as in the first embodiment, but the video contents of the divided screens are made the same. is there.

The configuration of this embodiment is the same as that of the first embodiment shown in FIG. The operation of the present embodiment will be briefly described with reference to FIG. 6. The same image is displayed on a screen divided into a plurality of regions and the adjustment value such as the size is changed to be displayed. , The adjustment can be further easily performed. Displaying the same video in the plurality of areas can be realized by controlling the memory 2 by the memory control circuit 8 in FIG.

A method for controlling the memory 2 will be described with reference to FIG. In this example, as shown in FIG.
In this case, the size of each area changes from 796 dots to 806 dots.

First, in the first frame, an image of size 796 is sent from the AD converter 1. Here, the memory control circuit 8 first controls the write enable so as to write only the hatched area of the video signal to the memory 2 and controls the write address so as to write to the address on the memory 2. In the second frame, the write enable is controlled so that only the shaded portion of the video signal, that is, the same video area as the first frame, is written, and the write address is controlled so that it is written to the address in the memory 2. It is possible to save the video at the address written in step 1 without erasing it, and to capture the same video. Memory 2 up to the sixth frame
In the same manner, six identical video portions having different sizes can be stored in the memory 2 as shown in FIG. If the read enable and the read address are controlled so that the memory 2 is read in order from address to address as shown in FIG. 7, six identical video portions having different sizes can be displayed as shown in FIG.

In this embodiment, the case of size adjustment has been described as an example. However, this embodiment is effective not only for size adjustment but also for all adjustments such as phase adjustment and contrast / brightness adjustment.

In this embodiment, the number of divided screens is set to six in the vertical direction. However, the number of divided screens and the direction of division can be freely determined, and it is sufficient to set the screen so that the user can adjust the screen most easily.

As described above, according to the present embodiment, the user can compare the same video by displaying the video in the screen divided into a plurality of regions in the same video and changing the adjustment values such as the size. Therefore, adjustment can be easily performed.

FIG. 9 shows a third embodiment of the present invention.

The feature of the present embodiment is that the Plug & Pl
When the liquid crystal projector is adjusted using the ay function, a PC outputs an adjustment screen optimal for the adjustment as a video signal.

FIG. 9 is a block diagram showing a third embodiment of the present invention.
The display device 11 includes, for example, a CPU 111, a video board 112, and a storage device 113, and the display device 12 includes, for example, a microcomputer 121, a signal processing unit 122, and a display element 123.

The PC 11 and the display device 12 are connected by a control line, and can communicate control signals bidirectionally. This can be achieved by using a commonly used Plug & Play function. The display element 123 may be, for example, a liquid crystal panel.

Next, the operation of the third embodiment will be described in detail with reference to the flowchart shown in FIG. This is an operation example when performing size adjustment, for example.

First, the display device 12 captures a normal video signal sent from the PC 11, performs a refresh rate conversion, a scaling process, and the like in the signal processing unit 122, and displays a video on the display element 123 (step 2001). Here, when, for example, a command for size adjustment is received from the user to the display device 12 (step 2002), the microcomputer 121 requests the PC 11 to display a size adjustment video signal via a control signal (step 2003). .

This request is based on a command system determined between the display device 12 and the PC 11, and
The driver software which defines the command system of the control signal is made resident. When the CPU 111 in the PC 11 receives the display request of the size adjustment video signal, the storage device 11
3 is controlled to load the video data for size adjustment in the video board 112 (step 2004). The storage device 113 is, for example, a hard disk or a floppy disk, and stores an optimal pattern for each adjustment as shown in FIG.

In the case of size adjustment, for example, a dot checkerboard pattern is used. The video board 112 loaded with the video data for size adjustment generates, for example, a dot checkerboard signal based on the data and sends it to the display device 12 (step 2005). The display device 12 displays a dot checkerboard signal, and the user adjusts the size while viewing the dot checkerboard screen (step 2006). Here, if the size adjustment is not optimal in the screen of the dot checkerboard pattern, vertical stripes are clearly generated on the screen.

The user can adjust the size so that the vertical stripes disappear, and the size can be easily adjusted. When the user issues a command to end the size adjustment to the display device 12 (step 2007), the microcomputer 121 requests the PC 11 to end the display of the size adjustment video signal via a control signal (step 2008). Upon receiving the request to cancel the display of the size adjustment video signal, the CPU 111 controls to display a normal video signal on the video board 112 (step 2009).

Here, the image data for size adjustment in the storage device 113 uses a pattern as shown in FIG. 11, but the present invention is not limited to this. For example, a pattern which can be easily adjusted as shown in FIG. You should keep it. At the time of adjustment, the image data that is most easily adjusted is, for example, as shown in FIG.
May be selected from the following patterns.

11 and FIG. 1 except for the size adjustment.
What is necessary is just to display the adjustment pattern as shown in FIG.

As described above, according to this embodiment, the PC P
The user can easily make adjustments by using the lug & play function to output an adjustment screen optimal for liquid crystal projector adjustment as a video signal from the PC.

FIG. 13 shows a fourth embodiment of the present invention.

The feature of this embodiment is that the Plug & Pl
When the liquid crystal projector is adjusted using the ay function, the signal set value of the video signal output from the PC is displayed on a screen and used as a reference for adjustment.

FIG. 13 is a block diagram showing a fourth embodiment of the present invention, in which parts corresponding to those in FIG. 9 which is a configuration example of the third embodiment are denoted by the same reference numerals. The different part is P
The application software 114 in C11.

Next, the operation of the fourth embodiment will be described in detail with reference to the flowchart shown in FIG. This is an operation example when performing size adjustment, for example.

Step 3001 is the same as in the third embodiment, and will not be described. For example, when a size adjustment command is received from the user to the display device 12 (step 3002), the microcomputer 121 requests the PC 11 to display a size adjustment video setting screen via a control signal (step 3003). This request is based on a command system determined between the display device 12 and the PC 11, and the PC 1
In 1, driver software defining a command system of control signals is resident.

When the CPU 111 in the PC 11 receives the display request for the size adjustment video setting screen, it executes the application software 113 to read the current signal setting value of the output video signal of the video board 112 and display the setting value. (Step 3004). The video board 112 sends a signal obtained by adding the set value table to the video signal to the display device 12 (step 3005). Here, FIG. 15 shows a display example of the signal set value, which displays a data list that is used as a reference for size adjustment. Data to be referred to for the size adjustment is, for example, the total number of pixels of the image in FIG. 15, and the user can adjust the size by adjusting the size to this data (step 30).
06). Subsequent operations are the same as in the third embodiment, and a description thereof will be omitted.

Generally, the user often does not know the set value of the output video signal of the PC 111. Therefore, by displaying the set value at the time of adjustment, the user can reconfirm the set value, which facilitates the adjustment.

In this embodiment, an example of the operation in the case of performing the size adjustment has been described. However, the operation is not limited to the size adjustment, and the screen position and the like may be similarly operated.

As described above, according to this embodiment, the PC P
When adjusting the liquid crystal projector using the lug & play function, the user can easily make adjustments by displaying the signal setting values of the video signals output from the PC on a screen and using the adjustments as reference.

FIG. 16 shows a fifth embodiment of the present invention.

This embodiment is characterized in that the Plug & Pl
When adjusting the liquid crystal projector by using the ay function, the liquid crystal projector receives the signal setting value of the video signal output from the PC, calculates the optimum setting value, and performs the adjustment automatically. It is in.

FIG. 16 is a block diagram showing a fifth embodiment of the present invention, in which parts corresponding to those in FIG. 9 which is a configuration example of the third embodiment are denoted by the same reference numerals. The different parts are a set value calculation unit 124 and a PLL 125 in the display device 12.

Next, the operation of the fifth embodiment will be described in detail with reference to the flowchart shown in FIG. This is an operation example when performing size adjustment, for example.

Step 4001 is the same as that of the third embodiment, and will not be described. For example, when a size adjustment command is received from the user to the display device 12 (step 4002), the microcomputer 121 requests the PC 11 via a control signal to transmit the value of the total number of horizontal dots required for the size adjustment. (Step 4003). This request is based on a command system determined between the display device 12 and the PC 11, and driver software defining a command system of control signals is resident in the PC 11 in advance.

When the CPU 111 in the PC 11 receives a request to transmit the value of the total number of horizontal dots, the CPU 111 reads the current total number of horizontal dots of the video signal output from the video board 112 and transmits the value to the display device 12 side. (Step 30
04). The display device 12 receives the total number of horizontal dots, converts it into a size value in the set value calculation unit 124 in the microcomputer 121, and transmits it to the PLL 125 (step 4).
005), and then the size adjustment ends. (Step 4
006).

Here, in this embodiment, an example of the operation in the case of performing the size adjustment has been described. However, not only the size adjustment but also the screen position and the like, the microcomputer 121 requests the PC 11 for necessary adjustment data and calculates By doing so, adjustment can be performed automatically.

As described above, according to the present embodiment, the P
When adjusting the liquid crystal projector using the lug & play function, the liquid crystal projector receives the signal setting value of the video signal output from the PC, calculates the optimum value, and automatically adjusts it. Can do things.

Finally, in the first to fifth embodiments, the adjustment of the liquid crystal projector has been described as an example.
Any display device that incorporates digital processing, such as a DP, may be used.

[0071]

As described above, according to the present invention, it is possible to judge each adjustment by arranging them on one screen and comparing them, so that the adjustment is facilitated and the adjustment accuracy can be improved.

Further, the user can easily make adjustments by using the Plug & Play function of the PC and outputting the adjustment screen optimal for liquid crystal projector adjustment as a video signal by the PC.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a liquid crystal projector according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a specific adjustment image of the first embodiment of the present invention.

FIG. 3 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 4 is a diagram for explaining the operation of the first embodiment of the present invention.

FIG. 5 is a diagram illustrating a specific adjustment image of the first embodiment of the present invention.

FIG. 6 is a diagram illustrating a second embodiment of the present invention.

FIG. 7 is a view for explaining the operation of the second embodiment of the present invention.

FIG. 8 is a diagram for explaining the operation of the second embodiment of the present invention.

FIG. 9 is a diagram illustrating a third embodiment of the present invention.

FIG. 10 is a diagram for explaining the operation of the third embodiment of the present invention.

FIG. 11 is a diagram for explaining the operation of the third embodiment of the present invention.

FIG. 12 is a view for explaining the operation of the third embodiment of the present invention.

FIG. 13 is a view for explaining a fourth embodiment of the present invention.

FIG. 14 is a view for explaining the operation of the fourth embodiment of the present invention.

FIG. 15 is a view for explaining the operation of the fourth embodiment of the present invention.

FIG. 16 is a diagram illustrating a fifth embodiment of the present invention.

FIG. 17 is a view for explaining the operation of the fifth embodiment of the present invention.

[Explanation of symbols]

1 ... AD converter, 2 ... memory, 3 ... DA converter, 4 ... O
SD circuit, 5: crystal oscillator, 6: PLL circuit, 7: delay circuit, 8: memory control circuit, 9: microcomputer, 91: RO
M, 10: color conversion circuit, 11: PC, 12: display device,
111 CPU, 112 video board, 113 storage device, 121 microcomputer, 122 signal processing, 123
Display element, 114 ... Application software, 124 ...
Set value calculation, 125... PLL.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI G09G 5/10 G09G 5/10 B 5/18 5/18 H04N 5/66 H04N 5/66 B (72) Inventor Ryuichi Someya Kanagawa 292 Yoshida-cho, Totsuka-ku, Yokohama, Japan Hitachi Multimedia Systems Development Headquarters

Claims (8)

[Claims] In a display device which receives image information of an information processing apparatus, a sampling clock generator for generating a sampling clock used for sampling the image information, and a timing for delaying the sampling clock to adjust the timing of the image information. A delay circuit for adjusting, a color adjustment circuit for changing contrast, brightness, color, etc. of image information;
A display device comprising an arithmetic processing unit for performing various controls of the display device, wherein a display section of the display device is vertically divided into N regions, and sampling in the display device is performed for each of the N regions. A display device characterized in that an arithmetic processing unit performs control so as to change a set value of a clock generator, a delay circuit, or a color adjustment circuit. 2. A display device for inputting image information of an information processing device, comprising: a sampling clock generator for generating a sampling clock used for sampling the image information; and delaying the sampling clock to adjust the timing of the image information. A delay circuit for adjusting, a color adjustment circuit for changing contrast, brightness, color, etc. of image information;
A display device comprising an arithmetic processing unit for performing various controls of the display device, wherein a display unit of the display device is divided into N block regions, and a sampling clock in the display device is provided for each of the N block regions. A display device characterized in that an arithmetic processor controls the generator, the delay circuit, or the color adjustment circuit to change the set value. 3. A display device for inputting image information of an information processing apparatus, comprising: a sampling clock generator for generating a sampling clock used for sampling the image information; and delaying the sampling clock to adjust the timing of the image information. A delay circuit for adjusting, a color adjustment circuit for changing contrast, brightness, color, etc. of image information;
An adding circuit for adding lines, characters, etc. to the input image information;
A display device comprising an arithmetic processing unit for performing various controls of the display device, wherein a display section of the display device is divided into N block regions, and a boundary line between the N block regions is added by an addition circuit. A display is performed and / or a character is displayed in an individual block area by an adder circuit to clarify a boundary between the N block areas, and a sampling clock in the display device is provided for each of the N block areas having the clarified boundary. Generator or delay circuit,
Alternatively, the display device is characterized in that the arithmetic processing unit performs control so as to change a set value of the color adjustment circuit. 4. A display device for inputting image information of an information processing device, comprising: a sampling clock generator for generating a sampling clock used for sampling the image information; and delaying the sampling clock to adjust the timing of the image information. A delay circuit for adjusting, an A / D converter for converting image information into a digital signal, a memory for storing an output digital signal of the A / D converter, a color adjustment circuit for varying contrast, brightness, color, etc. of the image information;
A display device comprising an arithmetic processing unit for performing various controls of the display device, wherein a display unit of the display device is vertically divided into N areas, and a storage area of a memory corresponding to the N areas. And stores the same image information in the divided storage areas, and changes the set value of a sampling clock generator, a delay circuit, or a color adjustment circuit in the display device for each of the N areas. A display device characterized in that an arithmetic processor performs control. 5. A display device for inputting image information of an information processing apparatus, comprising: a sampling clock generator for generating a sampling clock used for sampling the image information; and delaying the sampling clock to adjust the timing of the image information. A delay circuit for adjusting, an A / D converter for converting image information into a digital signal, a memory for storing an output digital signal of the A / D converter, a color adjustment circuit for varying contrast, brightness, color, etc. of the image information;
A display device comprising an arithmetic processing unit for performing various controls of the display device, wherein a display unit of the display device is divided into N regions,
The storage area of the memory is divided corresponding to the N areas, and the same image information is stored in the divided storage areas, and a sampling clock generator in the display device is provided for each of the N areas.
Alternatively, the display device is characterized in that the arithmetic processing unit performs control so as to change a set value of the delay circuit or the color adjustment circuit. 6. A display device to which image information of an information processing device is input, a storage device for storing test pattern data for adjustment of the display device, a video board for converting the test pattern data for adjustment into a video signal, An information processing device including a storage device and a CPU for controlling a video board; a signal processor for receiving a video signal sent from the information processing device and performing signal processing; and displaying a video signal by an output of the signal processor A display device comprising a display element, a signal processor and an arithmetic processor for controlling the display element,
The display device and the information processing device perform two-way communication, and the arithmetic processing unit in the display device instructs the information processing device to display a desired adjustment test pattern.
A display device, wherein the PU receives the instruction, reads desired adjustment test pattern data from a storage device, and processes the video board so as to display the desired adjustment test pattern. 7. A display device to which image information of an information processing apparatus is input, a video board for outputting a video signal, and a signal setting for managing and displaying signal setting information such as a screen size of an output video signal of the video board. An information processing apparatus having software, a CPU for controlling a video board and signal setting software, a signal processor for taking in a video signal sent from the information processing apparatus and performing signal processing, and an output of the signal processor A display device comprising a display element for displaying a video signal by means of a display device, and a signal processor and an arithmetic processor for controlling the display element, wherein the display device and the information processing device perform two-way communication, The processor instructs the information processing apparatus to display desired signal setting information, and the CPU in the information processing apparatus receives the instruction, and a desired signal is set by signal setting software. It reads the constant information, a display device that features be treated to the video board to display the desired signal configuration information. 8. A display device to which image information of an information processing device is input, a video board for outputting a video signal, and signal setting software for managing signal setting information such as a screen size of an output video signal of the video board. An information processing device comprising a video board and a CPU for controlling signal setting software, a signal processor for taking in a video signal sent from the information processing device and performing signal processing, and a video signal output from the signal processor. What is claimed is: 1. A display device comprising: a display element for displaying a signal; and a signal processor and an arithmetic processor for controlling the display element. Instructs the information processing device to transmit the signal setting information of the current output video signal,
The CPU in the information processing device receives the instruction, reads desired signal setting information by signal setting software, transmits the desired signal setting information to a display device, and the display device receives the signal setting information, A display device, wherein an internal processor converts the signal setting information into a set value of the signal processor, and sets the set value in the signal processor.