JP2003195844A - Personal computer with integrated display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a personal compute with an integrated display which can display an external input image on its display and then eliminates the need for a monitor for other image signal output equipment when the image signal output equipment is used in combination with the other image signal output equipment to contribute to cost reduction, work space expansion, and improvement of convenience. <P>SOLUTION: The personal computer has external image input terminals 12 and 14 to which the image signal output equipment is connected to input digital or analog image signals from the image signal output equipment, image signal converting means 16, 18, 20,22, 24, 26, 28, and 30 which convert image signals inputted from the external image input terminals 12 and 14 into image signals matching the display mode of a flat display 8, and a display image switching means 32 which switches an image to be displayed on the flat display 8 between an image generated by a processing part 2 and images inputted from the external image input terminals 12 and 14. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display-integrated personal computer capable of displaying an externally input image on a display.

[0002]

2. Description of the Related Art It is possible to display image data created by a processing unit of a conventional personal computer integrated with a display such as a notebook personal computer. FIG. 3 shows a block diagram of a notebook computer C as an example of a conventional display-integrated personal computer. The notebook computer C includes a keyboard 10 as an input device and an LCD 8 as a flat display for an output device. In the notebook computer C, a main processing unit 2 having a CPU 2a and a memory 2b is provided, and a processing unit that performs various types of processing is configured. The main processing unit 2 includes an LSI chip for drawing an image and a memory for holding a screen image.
It is connected to the video circuit 6 equipped with (VRAM). An LCD 8 is connected to the video circuit 6. With this configuration,
The image data created by the main processing unit 2 as a processing unit is converted into an image signal by the video circuit 6, and the LCD 8
Can be displayed on.

[0003]

However, the conventional display-integrated personal computer such as the notebook personal computer C cannot input an external image signal and display it on the display.

Therefore, for example, when a desktop type personal computer and a conventional notebook type personal computer are used together, a monitor for the desktop type personal computer is required, and it is necessary to purchase the monitor, which is costly. Also, when using a desktop computer and a conventional notebook computer together on the same desk, at least the notebook computer,
It is necessary to mount the keyboard and monitor of the desktop PC, which causes a problem of taking up space.

In addition, for example, when the personal computer and the monitor are installed in a place far apart from each other, an alternative monitor for confirmation is prepared near the personal computer in order to confirm the image while operating the personal computer. However, there is a problem that it is not convenient.

The present invention has been made to solve the above problems, and an object of the present invention is to be able to display an externally input image on a display, so that when used in combination with another image signal output device, the image signal output is performed. It is an object of the present invention to provide a display-integrated personal computer that does not require a monitor for equipment and contributes to cost reduction, work space expansion, and convenience improvement.

[0007]

In order to solve the above problems, the present invention has the following constitution. That is, the CPU
In a display-integrated personal computer equipped with a processing unit equipped with the image processing apparatus and a flat display capable of displaying image data created by the processing unit, an image signal output device is connected to connect the image signal output device to a digital or analog device. An external image input terminal capable of inputting an image signal, image signal conversion means for converting the image signal input from the external image input terminal into an image signal suitable for display on the flat display, and displaying on the flat display. A display image switching unit that switches an image between the image created by the processing unit and the image input from the external image input terminal is provided. According to this, since the external input image can be displayed on the display, a monitor for the image signal output device becomes unnecessary when used in combination with another image signal output device, which reduces the cost and expands the work space. Therefore, convenience can be improved.

Further, there is provided a display resolution conversion means for discriminating the display resolution of the image signal input from the external image input terminal and converting the display resolution of the image signal into a display resolution suitable for display on the flat display. According to this
The display resolution of the image input from the external image input terminal is
It can be displayed after being converted to a display resolution suitable for the display.

Further, it is provided with a keyboard and is formed in a notebook type. According to this, it is possible to further enhance the convenience of carrying and the work space.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a display-integrated personal computer according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a block diagram showing a configuration example of a notebook computer A which is an example of a display-integrated computer according to the first embodiment of the present invention. In addition,
In the notebook personal computer A, the same members as those of the conventional notebook personal computer C are designated by the same reference numerals and the description thereof will be omitted.

On the outer surface of the notebook personal computer A, a digital image signal is input as an external image input terminal D.
VI terminal 12 and VG for inputting analog RGB image signals
A terminal 14 is provided. The DVI terminal 12 is a DVI
D that receives the digital image signal input from the terminal 12
It is connected to the VI receiving LSI 16. VGA terminal 14 is
It is connected to a PLL circuit 18 for synchronizing the analog RGB image signal input from the VGA terminal 14 with the internal circuit. The PLL circuit 18 is connected to a 3ch ADC circuit 20 that converts an analog RGB image signal into a digital image signal.

The DVI receiving LSI 16 and 3 chA
The DC circuit 20 is connected to the image receiving / determining circuit 22.
The image receiving / determining circuit 22 is a circuit that receives an image signal and determines the display resolution from the information relating to the display resolution added to the input image signal.

The image receiving / determining circuit 22 is connected to an image adjusting circuit 24. The image adjustment circuit 24 is a circuit for adjusting the brightness, contrast and hue of the input digital image signal. The image adjustment circuit 24 is provided so that the adjustment amount of the image can be changed according to the set angles of the brightness adjustment knob 24a, the contrast adjustment knob 24b, and the hue adjustment knob 24c that are rotatably provided on the outer surface of the notebook computer A. . That is, the brightness, the contrast, and the color tone are adjustable by the user. Note that this image adjustment is performed by a user using a predetermined software (for example, a display driver) for image adjustment provided in the notebook computer A, using a keyboard 10 or an input device such as a mouse (not shown). It may be configured so that it can be set depending on the situation.

The image adjusting circuit 24 is connected to the frame rate converting circuit 26. The frame rate conversion circuit 26
This circuit converts the frame rate (screen rewriting frequency) and adapts the image signal to the display on the LCD 8.

The frame rate conversion circuit 26 is connected to a display resolution conversion circuit 28 as a display resolution conversion means. The display resolution conversion circuit 28 discriminates the display resolution from the information about the display resolution added to the input image signal, and up-scales or down-scales the display resolution of the image signal to match the display resolution of the LCD 8. Circuit.

The display resolution conversion circuit 28 is connected to the timing controller 30. The timing controller 30 is an electronic circuit that converts an image signal into a signal that can be displayed on the LCD 8.

The timing controller 30 is an LC
It is connected to the video switch unit 32 connected to D8.
The video switch unit 32 switches an image to be displayed on the LCD 8 between an image created by the main processing unit 2 as a processing unit and transmitted through the video circuit 6 and an image input from the DVI terminal 12 or the VGA terminal 14. It is a switch circuit. The image switching operation is performed by the image switching switch 32a provided on the outer surface of the notebook computer A.
Done by. The display image switching means may be configured to be set by the user performing a predetermined operation on a predetermined software (for example, a display driver) for switching the image included in the notebook computer A. .

The DVI receiving LSI 16, the PLL circuit 18,
The 3ch ADC circuit 20, the image receiving / determining circuit 22, the image adjusting circuit 24, the frame rate converting circuit 26, the display resolution converting circuit 28 and the timing controller 30 constitute an image signal converting means.

The operation when an external image signal is input to the notebook personal computer A as a display-integrated personal computer configured as described above will be described below. The external image signal is input from the DVI terminal 12 or the VGA terminal 14. The digital image signal input from the DVI terminal 12 is received by the DVI receiving LSI 16. Alternatively, when an analog RGB image signal is input from the VGA terminal 14, the analog RGB image signal is synchronized with the internal circuit by the PLL circuit 18 and converted into a digital image signal by the 3ch ADC circuit 20.

The digital image signal received by the DVI receiving LSI 16 or converted by the 3ch ADC circuit 20 is input to the image receiving / determining circuit 22. The image receiving / determining circuit 22 receives the image signal and determines the display resolution from the information relating to the display resolution added to the input image signal.

The signal output from the image receiving / determining circuit 22 is input to the image adjusting circuit 24. Image adjustment circuit 2
Reference numeral 4 adjusts the brightness, contrast and hue of the input image signal according to the setting angles of the brightness adjusting knob 24a, the contrast adjusting knob 24b and the hue adjusting knob 24c (or according to the setting on the software such as the driver). To do.

The signal output from the image adjustment circuit 24 is
It is input to the frame rate conversion circuit 26. The frame rate conversion circuit 26 converts the frame rate so that the image signal matches the display on the LCD 8.

The image signal having the frame rate converted by the frame rate conversion circuit 26 is displayed by the display resolution conversion circuit 28.
Entered in. The display resolution conversion circuit 28 upscales or downscales the display resolution of the image signal from the information of the display resolution added to the input image signal so as to match the display resolution of the LCD 8.

The image signal output from the display resolution conversion circuit 28 is input to the timing controller 30.
The timing controller 30 converts the image signal into a signal that can be displayed on the LCD 8.

According to the notebook computer A, an external image signal can be input and displayed on the LCD 8. Therefore, in the case of using the desktop type personal computer and the notebook type personal computer together as shown in “Problems to be solved by the invention”, if the notebook type personal computer A is used, the image output of the desktop type personal computer is output from the external image input terminal of the notebook type personal computer A. Inputting 12 or 14 eliminates the need for another monitor, and has the effect of reducing the purchase cost of the monitor. Switching between the image on the laptop computer A and the image input from the desktop computer is
This can be done by operating the image changeover switch 32a. Also, a desktop computer and a laptop computer A
When and are used together on the same desk, there is no need for a desktop type personal computer monitor on the desk, and there is an effect that space can be saved.

The same effect can be obtained when the PDA and the notebook computer A are used together. Especially PDA
In general, since the display screen is generally small, it is often difficult to see, and there is a user's request to view the display content on a large screen. When using PDA and laptop A together,
The image output from A may be input to the external image input terminal 12 or 14 of the notebook computer A. In this way, when using a PDA or laptop computer that is often carried around, even if a monitor cannot be prepared on the go, the PD
The display contents of A can be displayed on the large flat display of the notebook computer A, which is highly convenient. Further, in recent years, a mobile phone capable of outputting the display content of the screen to the outside has been developed, and it is expected to be released in the future.
If you connect such a mobile phone to laptop A,
The same effect as when the PDA is connected can be obtained.

Further, in the case of the example in which the personal computer and the monitor are installed far apart as shown in "Problems to be solved by the invention", if there is a notebook personal computer A which is easy to carry, an alternative monitor is carried. It is not necessary to prepare it, and there is an effect that it is highly convenient.

Next, a second embodiment of the display-integrated personal computer according to the present invention will be described. Figure 2
FIG. 7 is a block diagram showing a configuration example of a notebook computer B according to a second embodiment of the present invention. Note that the laptop computer B is the same as the laptop computer A of the first embodiment.
The same members as those described above are designated by the same reference numerals and description thereof will be omitted.

In the notebook computer B, the video switch section 32 is provided between the 3ch ADC circuit 20 and the DVI receiving LSI 16 and the image receiving / determining circuit 22. 3ch ADC circuit 20 or DVI receiving LSI 1
The image signal passing through 6 is input to the image receiving / determining circuit 22 after passing through the video switch section 32. Further, the image signal output from the video circuit 6 is the video switch unit 3
It is input to the image receiving / determining circuit 22 via 2. Further, the display resolution conversion circuit 28 includes a video switch unit 32.
When the image transmitted from the video circuit 6 is selected to be displayed by the display circuit 6, the display resolution can be arbitrarily changed by the user. The display resolution can be changed and set by operating a predetermined software (for example, a display driver) included in the notebook computer B.

In the notebook personal computer B configured as described above, in addition to the effects of the notebook personal computer A of the first embodiment, the effect that the display resolution of the screen created by the processing unit can be changed and displayed on the LCD 8 There is. This allows the user to display a screen on the LCD 8 of the notebook computer B in any size.

[0031]

According to the display-integrated personal computer according to the present invention, the external input image can be displayed on the display, so that the monitor for the image signal output device can be used together with another image signal output device. Is unnecessary,
The advantages are that the cost can be reduced, the work space can be expanded, and the convenience can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a notebook computer (display-integrated personal computer) according to a first embodiment of the present invention.

FIG. 2 is a block diagram of a notebook computer (display-integrated personal computer) according to a second embodiment of the present invention.

FIG. 3 is a block diagram of a conventional notebook computer (display integrated type personal computer).

[Explanation of symbols]

A, B notebook computer 2 Main processing unit 2a CPU 2b memory 6 video circuits 8 LCD 10 keyboard 12 DVI terminal 14 VGA terminal 16 DVI receiving LSI 18 PLL circuit 20 3ch ADC circuit 22 Image reception / discrimination circuit 24 Image adjustment circuit 24a Brightness adjustment knob 24b Contrast adjustment knob 24c Color adjustment knob 26 Frame rate conversion circuit 28 Display resolution conversion circuit 30 Timing controller 32 Video switch section 32a image switch

─────────────────────────────────────────────────── ─── Continued Front Page (51) Int.Cl. ⁷ Identification Code FI Theme Coat (Reference) G09G 5/391 G09G 5/00 520V // G06F 3/153 333

Claims (3)

[Claims] 1. A display-integrated personal computer comprising a processing unit having a CPU and a flat display capable of displaying image data created by the processing unit, the image signal outputting device being connected to the image signal outputting device. An external image input terminal capable of inputting a digital or analog image signal from the device, and an image signal conversion means for converting the image signal input from the external image input terminal into an image signal suitable for display on the flat display, A display-integrated personal computer comprising: a display image switching means for switching an image displayed on the flat display between an image created by the processing unit and an image input from the external image input terminal. 2. A display resolution conversion means for determining a display resolution of an image signal input from the external image input terminal and converting the display resolution of the image signal into a display resolution suitable for display on the flat display. The display-integrated personal computer according to claim 1. 3. The display-integrated personal computer according to claim 1, wherein the personal computer has a keyboard and is formed in a notebook type.