JPH07168557A - Image display controller - Google Patents

Abstract

PURPOSE:To enlarge the method for utilizing a highly accurate secondary dis play part. CONSTITUTION:In this controller image data of an arbitrary range of each image to be displayed on the display 1 of a personal computer, etc., are transferred to a highly accurate secondary display part 5, and images A, B, C are combined with each other therein and displayed on the display. The controller is provided with a transfer source memory 2 storing size data and image data of selected each image, a management table 3 preserving display positions in the secondary display part 5 of each image and a transfer destination memory 4 storing image data of each image in forms suitable to the secondary display part 5. Then, a display range in the secondary display part 5 for a new image C is obtained based on the size dat of the image C and the contents of the management table 3 up to that time by the running of a control software 6 and written in the management table 3, and also the image data are stored in the transfer target memory 4 in the form corresponding to this range. Moreover, a simple magnifying procession can be selected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display control device, and more particularly, to an image display control device for displaying image data of an arbitrary range of each image displayed on a primary display unit of a processor such as a personal computer in a higher definition than the display. The present invention relates to an image display control device that transfers images to a secondary display unit and displays images in these ranges in combination on the screen of the secondary display unit. The term "personal computer" used in the present specification is an example of various processing devices including a personal computer, a computer, a workstation, etc., and the present invention does not mean that the present invention is intended only for personal computers.

In recent years, TFT (Thin Film Transistor), N
CPT (Nematic Cholesteric Transition), FLC (Fer
A high-definition and large-screen display using a liquid crystal such as roreletric Liquid Crystal) and a large cathode ray tube has been developed, and it is required to effectively utilize these as a display unit of a processing device such as a personal computer. Responds to such requests.

[0003]

2. Description of the Related Art Such a high-definition display can be used as a secondary display unit of a personal computer, but its resolution (for example, 3250 × 2460 pixels) is a standard resolution of the personal computer display (for example, 640 × 480). However, even if the image displayed in this latter resolution is displayed on a high-definition display as it is, only a part of the screen is used (see FIG. 10).

On the other hand, when the resolution of the various displays originally prepared as the primary display section of the personal computer main body is different, the display image data is enlarged or reduced in a manner corresponding to the respective resolutions of the respective primary display sections. A method for effectively utilizing the entire screen is disclosed in JP-A-62-62.
160586, JP-A-4-51294 and JP-A-4-29
It is disclosed in Japanese Patent No. 1675.

[0005]

Therefore, conventionally, even when a high-definition display is used as a secondary display unit of a personal computer, it is used only to enlarge and display an image on the primary display unit. There was a problem in that the features of high resolution and large size could not be fully utilized.

Therefore, according to the present invention, a new image in the form of a combination of images in an arbitrary range (in the following description, referred to as "selected image") displayed on the display of the personal computer is enhanced. It is an object of the present invention to diversify the usage of the high-definition secondary display unit by displaying it on a high-definition display and by selectively enabling the combination display and the enlarged display.

[0007]

According to the present invention, an arbitrary range of each image obtained by a personal computer is selected to specify the image data, size data, etc., and the high level is obtained by receiving these data. A plurality of selected images are displayed on the secondary display unit by running the control software of the secondary display unit, which is a definition display.

FIG. 1 illustrates the principle of the present invention. In the figure, reference numeral 1 is a primary display unit of a personal computer, and a standard display has a resolution of 640 × 480 pixels. A transfer source memory 2 stores the image data of each selected image on the primary display unit 1 and the size data of the selected area. A management table 3 manages the display position of each selected image on the secondary display unit 5. Four
Is a transfer destination memory for storing the image data of each selected image sent from the transfer source memory 2, and a bit map memory or the like is used. A secondary display unit 5 uses, for example, a high-definition display having a resolution of 3520 × 2460 pixels. The secondary display unit may be provided on the same display device as the primary display unit. Reference numeral 6 denotes control software for the secondary display unit, which executes a combination process of the selected images displayed on the secondary display unit 5, a display process on the secondary display unit 5 after the combination, and the like.

Here, the management table 3 stores, for example, coordinate data for specifying the display position on the secondary display unit 5 after the combination processing of each selected image (see FIG. 5). The position is displayed on which side (the right side or the lower side on the screen, etc.) of each selected image whose size data of the selected image to be processed or the display position on the secondary display unit 5 has been specified so far. Is specified based on the instruction (see FIG. 6).

When a bit map memory is used as the transfer destination memory 4, the image data of each selected image corresponds to the display position on the secondary display unit 5 based on the contents of the management table 3, respectively. It is stored in the bit map memory, and only this stored data is transferred to the secondary display unit 5.

If a bitmap memory is not used as the transfer destination memory 4, for each selected image, in addition to the image data, the data indicating the correspondence with the contents of the management table 3 is stored in the memory. Stored in the secondary display unit 5 and both of these data are transferred to the secondary display unit 5.

[0012]

As described above, according to the present invention, by selecting an arbitrary range of each image displayed on the primary display unit of a personal computer, a new image in the form of a combination of these is displayed in a high-definition secondary display unit. It is designed to be displayed in.

Further, it is also possible to selectively use the enlarged display in which a single selected image on the primary display unit side is enlarged according to the screen of the secondary display unit and the combination display (FIG. 2). reference). In FIG. 2, all the images displayed on the primary display unit are selected.

[0014]

Embodiments of the present invention will be described with reference to FIGS. In the following description, a high definition liquid crystal display device (LCD) will be used as an example of the secondary display unit.

FIG. 3 is an explanatory view showing a state of screen display when using window software of the present invention.
31 is a personal computer screen (screen of primary display part), 32 is a high-definition liquid crystal display device (secondary display part), 33 is a display target window, 34 is an LCD control window, and 35 is a simple enlargement or combination display. Button, 36 is a button for instructing the display direction in the combined display, 37 is a button for instructing to clear the entire screen, 38 is an image display obtained by pasting the image selected in the display target window 33, and 39 is a high An image selection button for specifying any one of the selection images already displayed on the definition LCD 32, 40 denotes a button for instructing deletion of the selection image specified by this image selection button, Buttons 35 and 36 each perform a toggle operation.

A display target window 33 and an LCD control window 34 are opened on the personal computer main body screen 31 shown in the figure, and paint software runs in the former window and LCD control software runs in the latter window.

Here, in the image displayed in the display target window 33, the range to be displayed on the high-definition liquid crystal display device 32 is dragged with the mouse to perform a clip copy, and then the mouse is moved to the LCD control window. When it is moved to 34 and the contents of the clip copy are pasted, this is displayed on the high definition liquid crystal display device 32 based on the instruction of the buttons 35 and 36 of the LCD control window 34.

In the state shown in FIG. 3, the entire image of the display target window 33 is clipped and copied by mouse operation or keyboard operation, and the button 35 is set to the combination display and the button 36 is set to the right display. The entire image is displayed in combination on the right side of the (transferred) selected image on the high-definition liquid crystal display device 32.

FIG. 4 is a software hierarchy diagram of the present invention. 41 is application software, 42 is LCD control software, 43 is window software, 44 is high definition LCD data transfer driver, 45 is operating system, and 46 is each. Hardware such as a memory is shown respectively, and RS232C shows a cable.

Here, the application software 41
The window software 43 manages the image data created on the PC main body screen 31 in the display target window 33.

Under this control, when the transfer range to the high-definition liquid crystal display device 32 in the image of the display target window 33 is designated and the clip is copied, the image data of the transfer range is stored in the clipboard. The subsequent paste operation moves to the LCD control software.

In the following description, this transfer range will be referred to as "clip image", and the image data in this transfer range will be referred to as "clip image data", if necessary. Display device (high definition LCD)
Is simply called "LCD".

Next, by operating the high definition LCD data transfer driver 44 under the control of the operating system 45, the clip image data is transferred to the high definition liquid crystal display device 32 via the cable RS232C.

FIG. 5 shows window software and LCD.
It is explanatory drawing which shows the processing outline with control software,
Reference numeral 51 is display data of the personal computer body stored in the memory, and 52 is a high definition liquid crystal display device in the image of the display target window 33.
A clipboard for storing clip image data to 32 and clip image (rectangular area) sizes (vertical and horizontal lengths) in the x and Y directions respectively, and 53 is a high-definition liquid crystal display device for each clip image. An image management table that stores the display position at 32 (upper left coordinate and lower right coordinate), 54 is LCD image data stored in an image memory such as a bitmap memory, and 55 is an enlargement / combination set by the button 35. A display flag and 56 are display direction flags set by the button 36, respectively. The numbers “1” and “2” in the image management table 53 correspond to the selected images A and B in FIG. 1, respectively.

Here, the clip image data and the size data are stored in the clipboard 52 by the write routine and the clip copy routine of the window software 43, and the write routine of the LCD control software 42 is activated by the clip paste routine thereafter. That is, it becomes an active state.

Then, in this write routine, enlargement,
According to the contents of the combination display flag 55 and the display direction flag 56, ・ If the combination display flag is on, the clipboard
Based on the size data of 52, the content of the display direction flag 56, and the content of the image management table 53 at that time, the display position (upper left coordinate and lower right coordinate) of the clip image on the high-definition liquid crystal display device 32 is determined. (See FIG. 6), write this in the image management table 53, and store the clip image data in the bitmap memory in a form corresponding to this display position. If the enlargement flag is on, the clipboard 52 The enlargement routine (see FIG. 7) for the clip image data and size data of the above becomes the activated state, that is, the activated state, and the execution result is stored in the bit map memory, thereby the LCD image data in each case.
High-definition LCD data transfer driver 44
Processing such as sending to is executed.

FIG. 6 is an explanatory view showing a processing procedure in the write routine of the LCD control software according to the present invention. The origin of the coordinate system used in the following description is the high definition L.
It is a point corresponding to the upper left of the screen of the CD, and the right direction and the downward direction from this origin are the positive directions of the x direction and the Y direction, respectively (see FIG. 8).

That is, (1) it is determined whether the enlargement flag is set to ON. If "NO", proceed to the next step. If "YES", proceed to step (9). (2) Display Judge whether the content of the direction flag is "Right". If "YES", proceed to the next step and select "N".
If it is "O", go to step (6). (3) The value obtained by adding the x size of the clip image to be entered this time to the value of the x coordinate of the lower right point Q ₂ last entered in the image management table 53 is , It is judged whether it is smaller than the maximum x value of the LCD screen, that is, whether the current clip image can be displayed on the right side of the entered area of the LCD screen (see FIG. 8), and if “YES”, the next step Proceed to step (5) if NO
(4) Find the display area this time (upper left coordinate and lower right coordinate) immediately to the right of the entered area on the LCD screen [see FIG. 8 (a)], and display it in the portion of the bitmap memory corresponding to the display area. While writing the clip image data of this time, enter the coordinate data in the image management table 53, and proceed to step (10). (5) As the display area of the clip image of this time, the Y coordinate of the upper left point is , The range of the lower right point Y coordinate stored in the image management table 53, which is the maximum value, and the x coordinate of which is “0” is obtained [see FIG. The clip image data of this time is written in the portion corresponding to the display area, and the coordinate data
Data in the image management table 53, and
Proceed to (10). (6) Is the sum of the Y coordinate of the bottom right point last entered in the image management table 53 and the Y size of the clip image being entered this time smaller than the maximum Y value of the LCD? It is determined whether or not the clip image this time can be displayed below the entry area of the LCD screen. If "YES", proceed to the next step. If "NO", proceed to step (8 (7) Obtain the current display area (upper left coordinates and lower right coordinates) just below the entered area on the LCD screen, and add the current clip image data to the part corresponding to the display area in the bitmap memory. While writing the data, the coordinate data is entered in the image management table 53, and the process proceeds to step (10). (8) The x coordinate of the upper left point is the image management as the display area of this clip image. The range in which the lower right point x coordinate stored in the table 53 is the maximum value and the Y coordinate is "0" is obtained, and the clip image of this time is displayed in the portion corresponding to the display area of the bitmap memory. While writing the data, the coordinate data is entered in the image management table 53, and the process proceeds to step (10). (9) The enlargement routine is executed and the process proceeds to the next step. (10) High-definition LCD data transfer The clip image data is sequentially transferred to the high-definition LCD by a procedure such as setting the driver in the activated state, that is, the active state.

Here, steps (4) and (5) are processing for displaying each clip image in order to the right on the screen of the high definition LCD, and steps (7) and (8) ) Is a process for displaying each clip image in the downward direction on the screen.

Then, when the display range obtained in these steps eventually exceeds the screen of the high definition LCD,
For example, in steps (4) and (5), if the Y coordinate of the lower right point exceeds the maximum Y value of the high definition LCD, the writing routine is interrupted.

FIG. 8 is an explanatory diagram showing the positional relationship between the two when the clip images are sequentially displayed in the right direction on the screen of the high definition LCD according to the present invention. (a) corresponds to the above step (4) when the entire entry target (clip image) can be displayed on the right side of the entry area, and (b) shows this time on the right side of the entry area. The case where the entire entry target of cannot be displayed corresponds to step (5) above.

FIG. 9 is an explanatory view showing the algorithm of the enlargement routine of the present invention. The smaller one of the enlargement ratios in the x direction and that in the Y direction is used, and each pixel data of the clip image is expressed in the x direction. And the Y direction are repeated according to the enlargement ratio.

The image data of the entire image may be transferred to the high definition LCD for display without clipping a part of the image displayed on the screen of the personal computer. Further, it goes without saying that the present invention can be applied to high-definition secondary display units other than LCDs.

[0034]

As described above, according to the present invention, a new image in the form of a combination of images in an arbitrary range obtained on the personal computer main body side is displayed on the high-definition secondary display unit. Since the combination display and the enlarged display can be selectively performed, the usage of the secondary display unit can be expanded.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is an explanatory view of the principle of the present invention when selectively performing enlarged display and combination display.

FIG. 3 is an explanatory diagram showing a state of screen display when using window software according to the present invention.

FIG. 4 is a software hierarchy diagram of the present invention.

FIG. 5 is an explanatory diagram showing an outline of processing by window software and LCD control software according to the present invention.

FIG. 6 is an explanatory view (No. 1) showing a processing procedure in the write routine of the LCD control software of the present invention.

FIG. 7 is an explanatory view (No. 2) showing the processing procedure in the write routine of the LCD control software of the present invention.

FIG. 8 is an explanatory diagram showing a positional relationship between a screen of a high definition LCD and an image entered therein according to the present invention.

FIG. 9 is an explanatory diagram showing an algorithm of an expansion routine according to the present invention.

FIG. 10 is an explanatory diagram showing a general relationship between a personal computer main body display and a high-definition secondary display unit.

[Explanation of symbols]

 In FIG. 1, 1 ... Primary display unit (standard definition) 2 ... Transfer source memory 3 ... Management table 4 ... Transfer destination memory (bitmap memory) 5 ... Secondary display unit ( High definition) 6 ... Control software for secondary display

Claims (4)

[Claims] 1. An image data for an arbitrary range of each image displayed on a primary display unit of a processor such as a personal computer is transferred to a secondary display unit having a higher definition than the primary display unit, and the secondary display is performed. An image display control device for displaying images in these ranges in combination on a screen of a unit, a source memory for storing size data of each of the ranges and the image data therein, A control table for storing the display position of each image in the range on the secondary display unit, and a transfer destination memory for storing the image data sent from the transfer source memory, control of the secondary display unit As the software runs, the size data and the input data of the management table up to that time are input.
The display position of the new range on the secondary display unit is specified based on the data, the display position data is written in the management table, and the image data of the range is displayed on the secondary display unit. An image display control device characterized in that the image data is stored in the transfer destination memory in an appropriate form, and further, the stored image data is sent to the secondary display unit. 2. The control software is provided with an enlargement routine for the image data, and the enlargement process and the combination process for the image data are selectively executed. Item 1. The image display control device according to item 1. 3. The image display control device according to claim 1, wherein a bitmap memory is used as the transfer destination memory. 4. The secondary display unit and the primary display unit are on the same display device.
The image display control device described.