JPS6431440U

JPS6431440U -

Info

Publication number: JPS6431440U
Application number: JP12530487U
Authority: JP
Priority date: 1987-08-18
Filing date: 1987-08-18
Publication date: 1989-02-27

Description

[Brief explanation of the drawing]

第１図はこの発明の一実施例を示すブロツク図
、第２図はこの発明による表示制御部が保持して
いる表示制御情報を示した説明図、第３図は従来
のこの種の表示装置を示すブロツク図、第４図は
ビツトマツプメモリ内に３個の矩形イメージパタ
ーンが保持されている状態を示す説明図、第５図
はスクリーンメモリ内に３個の矩形イメージパタ
ーンが保持されている状態を示す説明図、第６図
は表示制御部に保持されている表示制御情報を具
体的に表現した説明図、第７図は領域判別部によ
つて分割されたスクリーンメモリの状態を示す説
明図である。図面中、１０１は直接描画制御部、１０２は処
理判別部、４０１はピツトマツプメモリ部、４０
２は描画制御部、４０３はスクリーンメモリ部、
４０４は表示制御部、４０５は転送制御部、４０
６は領域判別部である。なお、図中同一符号は同
一、または相当部分を示す。 FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram showing display control information held by a display control section according to the present invention, and FIG. 3 is a conventional display device of this type. FIG. 4 is an explanatory diagram showing a state in which three rectangular image patterns are held in the bitmap memory, and FIG. 5 is an explanatory diagram showing a state in which three rectangular image patterns are held in the screen memory. An explanatory diagram showing the state, FIG. 6 is an explanatory diagram concretely expressing the display control information held in the display control section, and FIG. 7 is an explanatory diagram showing the state of the screen memory divided by the area determination section. It is a diagram. In the drawing, 101 is a direct drawing control section, 102 is a processing discrimination section, 401 is a pit map memory section, 40
2 is a drawing control unit, 403 is a screen memory unit,
404 is a display control unit, 405 is a transfer control unit, 40
Reference numeral 6 denotes an area determination section. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

a first memory section holding a plurality of rectangular areas;
a second memory section that stores image patterns corresponding to dots on a display screen such as a CRT; a first drawing control section that changes the screen such as drawing characters and figures on the first memory; a predetermined rectangular image pattern in the first memory section and a second memory section;
a transfer control unit that transfers the data to a predetermined position in the memory unit, and manages display control information such as a positional relationship between a rectangular area on the first memory unit and a corresponding rectangular area on the second memory unit; a rectangular area on the first memory unit that is located between the transfer control unit and the display control unit and has been changed by the first drawing control unit, and a second display control unit that corresponds to the rectangular area. determining a rectangular area in the second memory unit from display control information managed by the display control unit, and transferring the rectangular image pattern from the rectangular area in the first memory unit to the rectangular area in the second memory unit; In the display device, the display device includes an area determination section that instructs a control section, and the second memory section includes a second drawing control section that performs screen changes such as character/figure drawing, and a screen change request such as drawing for each rectangular area. When it occurs,
Based on the display control information managed by the display control unit,
The first drawing control section changes the screen to a rectangular area on the first memory, and the area determining section transfers a rectangular image pattern to the corresponding position in the second memory section, or A second
1. A display device comprising: a process determining unit that determines whether to directly change a screen using a drawing control unit.