JPS584182A - Display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device, and in particular, it is capable of displaying a plurality of images in a superimposed manner, and when some images are erased from a display in which 11 images are displayed, one image disappears. To provide a display device which is rich in erasure without imparting cedar 1# to other images.

In conventional monochrome display devices, four numbers 1iii
JI! ] If you delete a part of the image when it is displayed in one size, all the parts that overlap with this part of the image will be deleted, so the remaining image will be the original one. There is one point where it becomes something different.

This will be explained to Fumi et al. based on FIGS. 1 to 3.

Figure 1 shows the general configuration of a conventional monochrome display device. In Fig. 1, the hook characters are displayed on the display l, which consists of a hook tube.

Or data such as graphics is input from the keyboard 2 or host processor 3 via the interface unit 4? 1IIJ mg 5 transfers selection data specifying desired characters and 9 figures to the pattern generation section 6. The pattern generator 6 converts this selection data into corresponding pattern data and sends it to the controller 5. The control section 5 transfers this pattern data to the UII image memory 7 as, for example, one piece of time-series data.

As shown in Figure 2, this image memory 7 has 1 horizontal addresses (l', 2', 3z-・path') and 1 vertical addresses (1s213...). 111
The I@ unit 5 transfers the pattern data to the artist memory 7 as character FRT image data as shown in the figure.

This pattern data is sequentially applied to the address corresponding to the display position.In the conventional seven-chrome display device, each pixel of one display rjIl has only two states: "bright" or "dark". Therefore, -ken memo 97 &: is memory l per address! Simply divide the 1-bit length data,
If the pattern data exists, the bird will command "l", and if it does not exist, the bird will command "o" (of course, if the pattern data exists, the bird will command "0", and if it does not exist, it may also be "Fu rlJ")
0 and displaying the pattern on display 1 will result in wealth.

The 1Iiii image data is extracted from the 1 memory 7 and transferred to the display section 8, and a predetermined pattern, for example the letter F, is displayed on the display surface 9 of the 0 display 1.

As shown in Fig. 2 ←), the display surface 9 has the horizontal addresses (■″, ■″, ■′...[
stock]') and the vertical address of m1ta+ (■, ■, ■・
. Therefore, the image data successively outputted from the home memory 7 is displayed corresponding to the address of the image memory 7.
: is displayed, so that the same pattern (letter F) as the pattern (letter F) stored in the 9-stroke memory 7 is displayed as KA4#1iiiI on the display-diJ9, as shown in FIG. 112 (B). If you write this, the A/-n data will be "
Since "1" and "1" are displayed as bright and "0" and "0" are displayed as dark, the pattern (letter F) is displayed brightly on the 9 display surface 9.

By the way, as shown in Fig. al13 e)・←)', the image data
When the figure A is displayed on the screen, the data at the corresponding address in the one-image memory 7 is changed from rOJ to rlJ.

And here, as shown in @3 figure ←), ←)', 9 figure B
When additionally displaying, the data at the address in the #I image memory 7 is set to "l" in the same way. Sunahchi 7 statue f
- Set pB' to "1". At this time, even in the area ik'cλB) where nine figures A and B overlap, 0 display-plane 9 can only display two traces, bright and dark.

The area (AB) is also displayed with the same brightness as the figure M and B alone, and at that time, the memory 7 is $13wJ
tp) as shown in Figure 1, B and the overlap area (AB)
``l'' is stored without distinction, and the other parts are rOJ.

In this way, if you want to delete only figure B, for example, from a display in which IA figure and B are displayed superimposed, ilB
Since the operation of erasing the pattern data corresponding to figure B from the uniform memory 7 shown in Figure (b) is performed, one figure B
Ichino data B' that stores all "0" from rlJ
and the result.

The stem changes from (Figure 3) to (C). For this reason, the display on the display screen 9 - house, as in the 9th figure, the area (AB) where figures A and B overlap from the 9th figure person is erased, and it becomes a dark shape and becomes 1 original &! This means that the 3-figure person will not appear exactly 8 times.

As mentioned above, the conventional monochrome display device has five display devices.

If you delete one of the shapes that overlap each other, the parts of other tm shapes that overlap with the shape to be deleted will also be deleted, so depending on the case, the host processor 3
This has the disadvantage that processing such as correction or redisplay is required.

Therefore, the present invention aims to improve the drawbacks of the conventional monochrome display devices as described above.

Of multiple shapes that are displayed on top of each other.

Even if you erase some shapes, other shapes will remain in their original shape.
The object of the present invention is to provide a display device that can be used to display images without leaving the screen. And for this purpose, the display device Il in the present invention is one display device, and the display device is made! 111 + display section, pattern generation section 9 that generates patterns of vA shapes and character fathoms, ink face section with peripheral devices, -tti image memory that stores image data.

In a monochrome display device having a control unit that controls the entire device, the image memory is configured with bits (k>13) in one address, and the dawn for displaying the image corresponds to the address of the display image. When adding "1" to the data at the address of the image memory and erasing the m image, display l1ill.
rlJ is subtracted from the data at the address of the image memory corresponding to the address of the image, and the brightness and darkness of the display is controlled depending on whether the data of the ll1i-image memory is "0" or "1 or more".

The present invention is characterized in that even if one of the plurality of overlapping figures is erased, the other figures and characters are displayed in their original form.

This invention is i! 4vA-116 Figure 114 is a block diagram of the structure of the present invention, Figure 5 is a detailed diagram of the image memory, 1N6FI! DI is an explanatory diagram of the operation of the present invention.

In the figure, parts with the same symbols as wheel weights indicate the same parts, and 10 is an image memo! J, 11 is a control section, and 12 is an OR circuit.

- The image memory 10, like the conventional image memory 7, stores S horizontal addresses (1', 2', ...) and vertical addresses (1, 2, ...). This address corresponds to the horizontal address and vertical address of the display screen 9 of the display device 1 on a one-to-one basis. The difference is that in the conventional m-image memory 7, the -1 memory data per l address is 1 bit long.

In the present invention, the bit length (kri2
This is the assignment of the above a).

The operation of displaying and erasing a plurality of images using the image memory 1G will now be explained with reference to FIG. 6 for the case of 2-2.

First, as shown in Fig. 6 P) and P)', when the figure person on the screen displays the horizontal addresses ■' to ■ on the display screen 9 of the display device L at the vertical addresses ■ and ■, The range of horizontal addresses 2' to (, -direct addresses 2 and 3 of the corresponding artist memory IO is rolJ, and the other parts are "00".

Next, as shown in @61i11←)', when a figure B partially overlapping one figure person is displayed, the corresponding horizontal addresses 3' to 5' and vertical addresses 3.
rlJ is added to the range of 4, and the m image memory 1O is added to the non-overlapping portion of 1 figure A and B as shown in Fig. 6←).
rlOJ is set in the part (AB)' where "l" overlaps once, and "00" is set in the other parts. That is, the following relationship exists between the data in #i's memory IO in the one-overlap portion (AB) and the portion of the figure figure or only B.

Memory data of figure (A, B) "lO" = memory data of figure person "Ol" memory data of child figure B r
OxJ In this way - the house memory lO has 9 figure people and figure B
The data obtained by adding the pattern data will be stored.

And the iji image memory l shown in II6 Figure P), Stem)
When pattern data is successively output from O and displayed on the display l, the two bits assigned to the 2% address are output as image data, and the OR11
11M12. If even one bit of the 2-bit m image data is "l", the OR circuit 12 outputs "l" and sends it to the display unit 8 to be displayed on one display l. In this way, figure A is created.

B includes the overlapping part (AB) and the non-overlapping part.

Similar to conventional display devices, images are displayed with uniform brightness.

In this way, when figures A and B are displayed superimposed, if only one figure B is erased, only the part of figure B is erased from the ll1i image data of the image memory lO shown in Figure 116←). vAJ! do. As a result, the image data of the part (AB) where figures A and H overlap are "lO" - "O
l' = '01', 'IOJ is converted to 'Ol', and the part containing only figure B is converted from 'Ol' to '00' - As a result, - image memory lO has a figure of $16. f
As shown in →, all r within the btJs person's address range
Since olJ is memorized and remains, the display image 1if of 1 display l
On i9, the one-dimensional figure person is correctly displayed as shown in FIG. 6.

If the figures A, B, and O of 31i1 are displayed superimposed, the data in the lli image memory 1G is rooJ in the y2vh part of one figure, and rolJ in the one part.

The part where two parts overlap is [IOJ, and the number "11" will be stored in the part where three unbalanced parts overlap. However, when four figures are superimposed, the added value of memory data becomes rloooJ, but +ii*memory io has the lower 2 bits roo
Since JL is not set, correct memorization is not performed. In this way, if a 12-bit length is given to one address, it is possible to display up to 3 of your company's graphics in a superimposed manner, and if a 3-bit length is guessed at 1illI, it is possible to display the graphics in a 7@t superimposed manner. It becomes possible.

When a bit length is assigned to -tRh-, superimposed display of up to (2-1)11 becomes possible. Of course, the bit length and 1. The OR circuit 12 is an OR circuit with a bit input, and if there is at least one rlJ in the bit output of the gal, it outputs rlJ and displays this in the display direction. Conversely, if some figures are deleted from the superimposed figures, the image data will be r-I.
Although it is J.

As long as at least one figure remains, at least one more bit output rlJ remains, so the remaining figure will be displayed correctly.

The above-mentioned addition and subtraction regarding the 7A bit length per day of the image memory 10 is performed by an arithmetic circuit (not shown) provided in the control section 11, for example. That is, the bit length is sequentially output from the image memory 10 to each address, and this and the pattern data sent from the pattern generator 6 are subtracted (when superimposed display is performed) or subtracted (when erased, the bit length is input to -image memory lO). ◎The extraction or re-embedding operation from this image memory IO is as follows:
This is the same as the conventional case.

In addition, for horizontal address scanning, four counters are installed in the oscillator of double the frequency of the horizontal address scanning oscillator of the conventional display device. Make it count up by 1,
41 bits of each address in the output of the counter
You can do it yourself.

As mentioned above, if the bit amount of data per address is @D, the number of figures that will be displayed at the same time in 1!11 is (2"-1), and more than that will be input. and fAI
Create Ib. Therefore, when this (2"-1) figure is superimposed, all the bits will be rlJ, so by detecting this, a warning is displayed to prevent the operator from inputting the figure to the east. At the same time, even if a new μ figure is input in the control unit 11, the display is stopped and it is not transferred to the pattern generation unit 6, and vAmA
You can also go up m.

Conversely, if the bit length is all "0" and a subtraction command is issued to R, the subtraction result will be negative during the figure deletion operation process for some reason. If something has occurred, the warehouse will detect it and display a malfunction display, or control it so that no subtraction is performed at all from rOJ, and when this subtraction is about to occur, #
You may also output information.

As explained above, according to the present invention, the #A image memory has a bit configuration per address, so that even if (2"-1) figures overlap, erasing any figure will affect other figures. (Since it is enriched by execution, the first-order effect can be obtained.

(Re) Even if you repeatedly overwrite and erase figures and letters, the 2wJ shape and part of the letters will not disappear, so the quality of the - side will not deteriorate.

(2) Conventionally, by erasing a certain figure, 1ti! When a part of a figure, etc. was deleted, the affected figure was corrected and redisplayed using Host Pro Nanatsuna, but such processing is absolutely necessary! disappears0

[Brief explanation of the drawing]

Fig. 1 is a conventional monochrome Hina display device, Fig. 882 is an explanatory diagram of its image memory and display surface, Fig. 113 is an explanatory diagram of superimposed display and erasure, 114m is a configuration diagram of an embodiment of the present invention, and gs diagram is FIG. 1 is an explanatory diagram of a single storage memory that can be used conveniently in the present invention, and is an explanatory diagram of production of the present invention. In the figure, lii display-12 is the keyboard, 3 is the host pro, 4 is the interface part, 5 is the H-share part, 6 is the pattern generation part, 7 is the liii memory, 8 is the display part, 9 is the display screen, 10 11 represents an image memory, 11 represents a control unit, and 12 represents an OR circuit. Patent applicant Fujitsu Ltd. Representative Patent Attorney Yamatani @ Eisai 60

Claims (1)

[Scope of Claims] (1) A display unit for creating a display, a cough display; a pattern generation unit for generating patterns such as figures and characters; an interface unit with peripheral devices; - an image memory for storing image data; In a monochrome display device that has a control unit that controls the entire device, the image memory is configured with bits (k>1) per address, and when displaying one image, the image memory is configured with bits (k>1) corresponding to the address of the displayed image. Add rlJ to the data at the address in the image memory and erase the -image i!
rlJ is calculated from the data at the address of the IIIETA image memory corresponding to the address of the 61Fi display image. A display device characterized in that even if one of a plurality of irises of figures, etc. is erased, other figures, characters, etc. are displayed in their original form.