JPH07248757A - Image display device - Google Patents

Abstract

PURPOSE:To efficiently use the display picture, to always display the operation picture in the normal direction and to make an operation picture content easy to see, in an image display device displaying the image data and the operation picture such as a document filing system. CONSTITUTION:This device is provided with an image memory 16 for storing the image data and the operation picture of a display object in a first area 161, a mechanism for holding CRT freely rotatable in the vertical and horizontal directions of a screen, a micro switch(MSW) detecting the rotation state/the normal state of the CRT, a rotation circuit 14 for converting a matrix relation of a display arrangement of the operation picture stored in the first area 161 of the image memory 16 in the direction opposite to that of the rotation of the CRT and a display control circuit 17 for selecting the operation picture to be displayed from one of sides of the first, second areas 161, 162 in the image memory 16 by the MSW based on the detection result of the normal state/the rotation state of the CRT, and the operation picture is always displayed in the normal direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display device,
In particular, in a system such as a document filing system which displays image data input by an image scanner or the like and an operation screen showing instructions and guidance to an operator on one display device, horizontal writing and vertical writing are performed. The present invention relates to an image display device that is suitable for effectively using the screen of a display device to display any of the image data and for always displaying the operation screen in a normal direction.

[0002]

2. Description of the Related Art Image data such as memos, drawings, tables, and illustrations that are difficult to code and are difficult to process by computer in the past are converted into files as images and searched when necessary, and an image display device (display) is displayed. There is a document filing system as a system that can be displayed on or printed. In this document filing system, A
Since many document image data of 4 to B4 size were handled, most of the documents were vertically written. Therefore, most of the image display devices (CRT displays) are vertical type (the length is longer than the horizontal direction).

Furthermore, the types of document sizes that can be handled have increased, and drawings such as A3, A2, A1 can be filed and displayed on the display as document image data. In this case, horizontal drawings are used. In many cases, the display is used vertically, and when the displayed image is in horizontal writing mode, the image is rotated by the operator's keyboard instruction or the like to return the display state to the normal state. An example of a related patent is Japanese Patent Laid-Open No. 55-8.
5944 publication is mentioned.

[0004]

The problem to be solved by the prior art is that, in the prior art, when the image display device is, for example, a vertically long rectangle, when the horizontally long document (image) is displayed, the image cannot be displayed on the screen. In addition, in order to deal with this problem, the display device can be rotated, and in order to display a horizontally long document (image), the display device is rotated so that the vertically long screen becomes horizontally long. If this happens, the operation screen will rotate with it, making it difficult to see.
An object of the present invention is to solve these problems of the prior art, and in an image display device that displays image data and an operation screen on the same screen, such as a document filing system, the device itself can be rotated vertically and horizontally, An object of the present invention is to provide an image display device capable of displaying both a vertically written document and a horizontally written document without wasting space and always displaying an operation screen in a normal direction.

[0005]

In order to achieve the above object, an image display apparatus of the present invention displays image data input by an image scanner or the like and an operation screen showing instructions and guidance to an operator as one display. An image display device for displaying on the device (CRT21), which stores image data, and which stores the operation screen to be displayed in the first area 161, and the CRT 21 which can be rotated 90 degrees in the vertical and horizontal directions of the screen. Display rotation mechanism and CRT
The rotation detection means (micro switch 23) for detecting whether 21 is in the rotation state or the normal state, and the image memory 1
6, the matrix relationship of the display array of the operation screen stored in the first area 161 is converted into the direction opposite to the rotation of the CRT 21,
The rotation circuit 14 to be stored in the second area 162 of the image memory 16 and the CRT 21 by the micro switch 23.
Based on the detection result of normal state / rotation state of CRT21
The display screen is provided with a display control circuit 17 for selecting the operation screen to be displayed on the image memory 16 from either the first area 161 or the second area 162 of the image memory 16, and the operation screen is
It is characterized in that it is always displayed in the normal direction on the screen of T21.

[0006]

In the present invention, the display data format (format)
According to the decision, decide whether to use the image display device vertically or horizontally, and according to the decision, physically rotate the image display device in the vertical and horizontal directions of the screen, and freely select vertical or horizontal type. Make it switchable. As a result, the display screen can be used efficiently by eliminating the screen waste space. Also,
At that time, the operation screen is rotated in the direction opposite to the rotation of the image display device so that the operation screen can be displayed in a normal orientation. As a result, the operator can easily read both the display data (image data) and the operation screen.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. First, the principle of the present invention will be described. Normal,
An image display device (for example, CRT) in a document filing system or the like is fixedly used by arranging it vertically or horizontally, but with the increasing variety of document image information,
There is a large amount of vertical writing image data and horizontal writing image data, the display device is used fixedly, and the image data is processed and displayed by functions such as image rotation, enlargement, and reduction.
There is wasted space on the display screen. Therefore, in the present invention, a rotation mechanism for rotating the display device itself in the vertical and horizontal directions is provided, and the display device is rotated in the vertical and horizontal directions according to the format of the image data (vertical writing and horizontal writing) to make the display of the document image easy to see.
In this case, both vertical writing and horizontal writing can be displayed in the normal direction, but the operation screen that shows instructions and guidance to the operator also rotates, making it difficult for the operator to see the operation screen. The content becomes difficult to read. Therefore, regarding the display of the operation screen, the contents of the image memory are rotated in the direction opposite to the rotation of the display device itself, and the characters in the operation screen are displayed in the normal orientation.

FIG. 2 is an external view of an image display device showing an embodiment of the present invention. 2A is a front view of the image display apparatus, FIG. 2B is a side view of the image display apparatus, and FIG.
(C) is a rear view of the image display device, showing a state in which a vertically written document is displayed. In FIG. 2, 21 is a CRT displaying a vertically written document, 22 is a microswitch contact plate that contacts the microswitch 23 when the CRT 21 is rotated vertically and horizontally, and 23 is a microswitch that detects vertical and horizontal rotation of the CRT 21. .

FIGS. 3A and 3B show the CRT 21 of FIG.
It is a figure which shows the state at the time of rotating a horizontal direction vertically and horizontally. When the operator or the like rotates the CRT 21 90 degrees leftward or rightward from the state shown in FIG. 2, the microswitch contact plate 22 comes into contact with the microswitch 23,
The micro switch 23 is turned on, and the rotation of the CRT 21 is detected. When this detection is performed, control is transferred to a control unit (see FIGS. 1 and 6 described later) inside the CRT 21.
Thus, the microswitch contact plate 22 and the microswitch 23 constitute a rotation detection mechanism. Also,
Two micro switches 23 are attached so that rotation detection can be performed from either the left or right direction.

FIG. 1 is a diagram showing the contents of display control of the image display apparatus according to this embodiment. In FIG. 1, 11 is CR
A TRT CRT display unit, 13 is a control circuit (shown as a control circuit in the drawing) for controlling display of image data, 1
Reference numeral 4 is a rotation circuit for rotating image data, 15 is an enlargement / reduction circuit for enlarging / reducing image data, and 16 is a CRT such as input display data (image data) or operation screen.
An image memory for storing various screen data to be displayed on the display unit 11, and a microswitch 12 for rotation detection (the same as the microswitch 23 in FIGS. 2 and 3). Further, 161 and 162 are areas for storing data for operation screens.

4A and 4B show a CR according to this embodiment.
It is a figure which shows the display state of the operation screen at the time of performing vertical and horizontal rotation of T21, and FIG. 5 (a), (b) is CR by this Example.
It is a figure which shows the display state of the image data at the time of performing vertical and horizontal rotation of T21. Normally, the vertically long data in the area 161 of the image memory 16 is displayed by the selection operation of the display control circuit 17. Here, when the rotation detection microswitch 12 is turned on, the signal is output to the display control circuit 1.
7 and the control circuit 13. Then, under the control of the control circuit 13, the vertically long data in the area 161 passes through the rotation circuit 14 and the enlargement / reduction circuit 15, is converted into the horizontally long data, and is transferred to the area 162 in the image memory 16.

Then, the horizontally long data in the area 162 is selected by the display control circuit 17 which detects the ON signal of the micro switch 12, and is displayed on the CRT display section 11. Thus, for example, as shown in FIG. 4, while the operation screen (character data) is being displayed (during operation), even if the CRT 21 is switched to the horizontal type, the character data is rotated and stored in the area 162 and stored in the image memory. Display area of area 162
By switching to, it is possible to display a normal and easy-to-see operation screen. Further, when displaying image data, the image is not rotated as shown in FIG. 5, and the orientation of the CRT 21 is manually set by the operator so that the image can be easily seen.

FIG. 6 is a diagram for explaining display control when the image display apparatus according to the present embodiment is rotated vertically and horizontally.
This is the image rotation circuit 14 and the enlargement / reduction circuit 15 of FIG.
2 is a diagram showing an example of a detailed configuration of a control circuit 13 and specifically illustrating display control between these circuits and the image memory 16. FIG. In FIG. 6, 60 is an address bus to which address data is transferred, 61 is a data bus to which various data are transferred, 62 is an address counter (denoted as CNT in the figure) for counting addresses, and 63 and 65 are multiplexers (see FIG. In the description, MPX), 64 is a start address register for storing a start address, 66 is an X size register for storing display size data of document image data, 67 is an adder, 68 is a latch circuit for latching data, and 69 is A driver for sending address data to the address bus 60, and a timing control circuit 70 for timing control of display contents. Here, the rotation circuit 14 of FIG. 1 is composed of a shift register array, and the enlargement / reduction circuit 15 is composed of a latch circuit. Therefore,
The rotation circuit 14 will be described as a shift register array.

FIG. 7 is a diagram showing the contents of the image memory transferred from the control unit of FIG. 6, and FIG. 8 is a timing chart of the control unit of FIG. The operation of FIG. 6 will be described below with reference to FIGS. 7 and 8. First, the address bus 60
A start address is given to the start address register 64 from the upper CPU or the like via the. Next, the reading of the image memory 16 is started, the address of the head address is output to the address bus 60 through the start address register 64, the multiplexer 65, and the driver 69, and the corresponding contents of the image memory 16 (the first address shown in FIG. 7). The word data 73) is output onto the data bus 61, and the contents are taken into the shift register (SFT1) for one word in the shift register array 14. At the same time, the address data is added by the adder 67 for one line by the X size register 66, and the address is held in the latch circuit 68.

Next, the contents of the latch circuit 68 are output to the address bus 60 via the multiplexer 65 and the driver 69, and the data of the portion shown in the second word register 74 in FIG. Take in the second shift register in parallel. As a result, in the image memory, the first word data 73 and the second word data 7
4, ..., The data of the nth word data 7n is the No. of the shift register array 14. 1-No. It is stored in n (where n represents the number of bits of the data bus 61). At this point, the input of the data for one block is completed, and the mode becomes the mode for writing the data in the image memory (I shown in FIG. 8).
N mode 85 end).

Next, the data stored in the shift register array 14 is shifted and the leading 1 bit of each register is input to the enlarging / reducing circuit 15, and this time, as the first word data in the area 77 of FIG. Is stored. Next, the data shifted by the shift register array 14 again can be output to the portion of the second word data 78 in FIG. In this way, one block area 72
(First word data 73 to nth word data 7n)
The 90-degree rotation of the data in the image memory is completed in block units such as, and transferred to the image memory 16. Data transfer in block units like this is performed one after another, and as a result,
Data (ROW) in the area 71 for one column is stored in the area 711.
(COLUMN), and the transfer of the data for one column is completed (corresponding to the part of ROW # 182 shown in FIG. 8).

Next, the transfer of the second column is performed, which is started by inputting the latch output of the latch circuit 68 of FIG. 6 to the start address register 64 through the multiplexer 63. Thereafter, similar to the transfer of the first column, the contents of the start address register 64 are first input to the latch circuit 68 through the multiplexer 63 and the first word is input to the shift register, and the transfer of the second column is started. Do. Similarly, perform the third and subsequent columns,
Finally, the transfer of the data for one screen is completed.

As described above with reference to FIGS. 1 to 8, in the image display apparatus according to the present embodiment, when displaying a vertically-oriented screen, conventionally, the image must be rotated and reduced before being displayed. Of course, it is easy to see what is small and difficult to see because it can be displayed without changing the size of the screen. Further, when the operation screen is displayed, the operation screen can be rotated and displayed in the direction opposite to the rotation of the display device, so that the operator can easily operate the operation screen. The present invention is not limited to the embodiments described with reference to FIGS. 1 to 8, and various modifications can be made without departing from the scope of the invention.

[0019]

According to the present invention, in an image display device for displaying image data and an operation screen such as a document filing system, the device itself can be rotated vertically and horizontally, and the image data can be a vertical document or a horizontal document. However, it can be displayed on the screen without wasting space, the display screen can be used efficiently, and the operation screen can always be displayed in the normal direction.
The contents of the operation screen are easy to see.

[Brief description of drawings]

FIG. 1 is a diagram showing display control contents of an image display device showing an embodiment of the present invention.

FIG. 2 is an external view of the image display device according to the present embodiment.

FIG. 3 is a diagram showing a state in which the CRT in FIG. 2 is rotated horizontally and vertically.

FIG. 4 is a diagram showing a display state of an operation screen when a CRT is rotated vertically and horizontally according to the present embodiment.

FIG. 5 is a diagram showing a display state of image data when the CRT is rotated vertically and horizontally according to the present embodiment.

FIG. 6 is a diagram for explaining display control when the image display apparatus according to the present embodiment is rotated vertically and horizontally.

8 is a diagram showing a timing chart of the control circuit of FIG.

[Explanation of symbols]

11: CRT display unit, 13: control circuit, 14: rotation circuit (shift register array), 15: enlargement / reduction circuit, 2
1: CRT, 22: Micro switch contact plate, 23: Micro switch, 60: Address bus, 61: Data bus, 63, 65: Multiplexer, 64: Start address register, 66: X size register, 67: Adder, 68 : Latch circuit, 69: Driver, 70: Timing control circuit, 71: 1 column area, 72: 1 block area, 73: 1st word data, 74: 2nd word data, 7n: nth word Data, 76: transfer source image data, 77: first word data, 78: second word data, 79: nth word data, 710: 1
Block data, 711: One column data, 712: Transfer destination image data, 81: Start timing signal, 8
2: ROW timing signal, 83: ROW timing (enlargement) signal, 84: Block timing signal, 85:
IN timing signal, 86: OUT timing signal, 8
7: read timing signal, 88: write timing signal.

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[Procedure amendment]

[Submission date] April 25, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a diagram showing display control contents of an image display device showing an embodiment of the present invention.

FIG. 2 is an external view of the image display device according to the present embodiment.

FIG. 3 is a diagram showing a state in which the CRT in FIG. 2 is rotated horizontally and vertically.

FIG. 4 is a diagram showing a display state of an operation screen when a CRT is rotated vertically and horizontally according to the present embodiment.

FIG. 5 is a diagram showing a display state of image data when the CRT is rotated vertically and horizontally according to the present embodiment.

FIG. 6 is a diagram for explaining display control when the image display apparatus according to the present embodiment is rotated vertically and horizontally.

7 is a diagram showing an image memory transferred from the control circuit of FIG.
FIG.

8 is a diagram showing a timing chart of the control circuit of FIG.

[Explanation of reference numerals] 11: CRT display unit, 13: control circuit, 14: rotation circuit (shift register array), 15: enlargement / reduction circuit, 2
1: CRT, 22: Micro switch contact plate, 23: Micro switch, 60: Address bus, 61: Data bus, 63, 65: Multiplexer, 64: Start address register, 66: X size register, 67: Adder, 68 : Latch circuit, 69: Driver, 70: Timing control circuit, 71: 1 column area, 72: 1 block area, 73: 1st word data, 74: 2nd word data, 7n: nth word Data, 76: transfer source image data, 77: first word data, 78: second word data, 79: nth word data, 710: 1
Block data, 711: One column data, 712: Transfer destination image data, 81: Start timing signal, 8
2: ROW timing signal, 83: ROW timing (enlargement) signal, 84: Block timing signal, 85:
IN timing signal, 86: OUT timing signal, 8
7: read timing signal, 88: write timing signal.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location G09G 5/24 9471-5G

Claims (1)

[Claims] 1. An image display device for displaying image data input by an image scanner or the like and an operation screen showing instructions and guidance to an operator on a single display device while storing the image data and displaying the image data. An image memory for storing the operation screen in a first area, a display device rotating means for holding the display device 90 degrees in the vertical and horizontal directions of the screen, and a display device in a rotating state or a normal state. The rotation detection means for detecting whether or not there is a matrix relation between the display array of the operation screen stored in the first area of the image memory is converted into the direction opposite to the rotation of the display device, and the second row of the image memory is converted. And an operation screen displayed on the display device based on the detection result of the normal state / rotation state of the screen of the display device by the rotation means stored in the area A display control means for selecting from either the first area or the second area of the image memory is provided, and the operation screen is always displayed on the screen of the display device in a normal direction. Display device.