JPS636631A - Display device - Google Patents

Abstract

PURPOSE:To select a display form in response to each application by dividing a virtual screen into parts and giving the display control of plural windows to each divided screen based on an attribute table. CONSTITUTION:An application program 6 decides whether a single window should be used or not and gives a command 61 to a plural-window control means 7 for change of the screen size according to the result of said decision. Then the program 6 divides 74 a virtual screen 71 based on the designated sizes and then delivers another command 61 for decision of the window size and selection of plural windows. A part of the screen 71 is defined as a window 72 and displays 76 plural windows on an LCD panel 5 through a display controller 3. Furthermore, a command 61 is delivered for display attributes for designation of a screen scroll method, etc. These display attributes are set 75 to an attribute table 73. Then the designated display is given onto the panel 5 based on the information on the table 73.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information device that also has a small or medium-sized display device, and relates to a device that controls multiple windows on a virtual screen.

[Conventional technology]

With conventional display control devices.

(1) Simply display multiple windows on one screen.

(2) Virtual screen? The controller only controls the IWA window.

As such, there was no need to manage multiple windows while controlling the virtual screen.

[Problem that the invention seeks to solve]

However, with the above-mentioned conventional technology, it is not possible to display multiple windows as needed while using a virtual screen, and only one of the functions can be realized. Information with F! The i-device has a problem in that its functions are restricted. The present invention is intended to solve these problems, and its purpose is to provide a device that has both a virtual screen function and a multiple window function so that the user can select any function. It is in.

[Means to solve the problem]

The present invention realizes a virtual screen function with a single window in an information@device that has a display device that projects display data on a display unit and a display control device that assumes the state of the display device, and allows the user to specify the The present invention is characterized by controlling a plurality of windows using a part of the virtual screen, managing window attribute tables, and having display functions selectable by the user.

[Effect]

According to the above configuration of the present invention, if the user commands? The multiple window control means selects between using a single virtual screen and using multiple windows by dividing the virtual screen, and changes the attribute table that each window has. Based on the above command, the display device is caused to display one or more windows through the display control device, and the display of each window is controlled according to the attributes specified in the attribute table.

[Implementation row]

The present invention will be explained in detail below.

FIG. 1 is a block diagram showing an outline of the present invention. A multiple window control means 7 (see FIG. 3) exists on the ROM 1 and receives commands from an application program running on the RAM 2J:. After receiving the command, the multiple window control means 7 controls each of the virtual screens, windows, and attribute tables on the RAM 2, and outputs display data to the display control device 3 based on each piece of information.
3 is.

The display data is stored in the VRAM 4 and displayed on the display device of the LCD panel 5.

A part of the virtual screen with a maximum of 12 columns x 42 lines can be arranged as a window, and an LCD with 12 columns x 14 lines.
displayed on panel 5. A virtual screen can be divided into multiple screens by reducing its size, and each screen has a window.The arrangement table attached to each window contains screen scroll specifications, cursor movement specifications, cursor Specify display,
The multiple window control means 7 performs 1!1 control of the display based on the information in the attribute table.The settings of the virtual screen, window, and attribute table are determined by the application. is displayed le 1
"It is done by issuing commands to the means of God."

Next, the operation 1r of the present invention,! This will be explained based on the operational flowchart of the application shown in FIG. 2 and the operational conceptual diagram of the multiple window control means 7 shown in FIG.

Initially, the second application program 6 determines whether to use a single window, and outputs a command 61 for changing the screen size to the multiple window control means 7 (11, the flow shown in Figure 2, the same applies hereinafter). According to the above command, the control means 7 controls the virtual screen 71i.
Divide the specified size Kf) by 74. Subsequently, the application program 6 outputs a command 61 for determining the size of a window and selecting a plurality of windows.
Therefore, the multiple window control means 7 defines a part of the virtual screen as a window 72, and sets one of the multiple windows as the current window to display multiple (fixed) windows on the LCD panel 5 through one display control device 13t. A window is displayed 76.

Furthermore, the application program 6 issues commands 61 regarding display attributes, such as specifying the method of screen scrolling, specifying cursor movement, specifying cursor/calendar display, and specifying reverse display.
By outputting 14, the multiple window control means 1
7C. Settings 75 are made in the tita table 73 attached to the current window.

According to the above, upon receiving the command 61 to display one character.

Based on the information in the attribute table 73, the designated display 75 is performed on the LCD panel 5.

In the application program 6, when displaying in the pond window, select window 12 again, and when displaying in the same window, return to display attribute specification 13 and continue @.

〔Effect of the invention〕

As described above, according to the present invention, the virtual screen is used as a single or multiple virtual screens by dividing the virtual screen and controlling the display of multiple windows on each screen based on the attribute table. Each screen can be displayed as a window based on mutually independent attribute tables, which has the effect that the user can select a display format according to the purpose of display.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing one implementation of the present invention.
, Supplementary Figure 2 is an explanatory diagram showing the sequence of actions of an application using the present invention, and Figure 3 is a conceptual diagram showing the operating state of the present invention. Applicant Seiko Epson Tokouni Company Figure 1 Figure 2

Claims (1)

[Claims] A display device that copies display data onto a display section, a display control device that defines the state of the display device, means for realizing a virtual screen through the display device and the display control device, and a method for controlling multiple windows on the virtual screen. A display device comprising: a control means; and an attribute table management means corresponding to each of the windows.