JPS60257495A - Screen display method - 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 Technical Field The present invention relates to a method for displaying characters on a 11-page basis preferentially on a character-by-character basis when displaying a graphic display and a character display in an overlapping manner.

BACKGROUND ART Conventionally, when a graphic display and a character display are displayed together, a method of prioritizing the overlapping portion of the graphic display and the character display has been considered, in units of planes. The 1-first order refers to whether to display a graphic ink display or a character display when displaying the entire part of the pattern. 1] is 1 per surface in the prior art, or the previous III
FIG. 2 is a diagram showing the graphic table 7+ζ when determining the priority order for each surface in the prior art. In the 1st expression shown in Figures 1 and 2, the first
The display when the character display surface fW shown in the figure is displayed first is shown in figure jg3 (1). A display when the graphic display shown in FIG. 2 is preferentially displayed is shown in FIG. 3 (2).

Figure 4 shows a logic circuit for determining the priority order when determining priority on a plane-by-plane basis in the prior art.
FIG. 3 is a waveform diagram of each part of the logic circuit shown in the figure. Figure 5 (
1) is a waveform diagram of a reference clock. The three additive primary colors red, green, and blue in the character display VC are output from terminals 1 to 3, respectively. Human power is applied to the outputs υ and l' from terminals 1 to 3 and terminals IA to 3A of the selection circuit 4, respectively. Dimensions. The output from 7jjj children 1 to 3 is N
OR+! ! Human power is applied to circuit 5.

That is, NOR (DJ path 5 outputs a low level signal when a character display is being outputted, and outputs all 1 high level signals when a character display is not being outputted). The output of the NOR circuit 5, εp, is shown in Figure 5 (2). The three additive primary colors red, green, and blue in the graph ink display are output from t, , 14jj 16-8, respectively. Outputs from terminals 6 to 8 are sent to selection circuit 4.
Each of the terminals IB to 3B can be input. Also, terminal 6~
The output from 8 is input to an OR circuit 9. That is, OR
The circuit 91rJ outputs a low level signal when a graphic display is being output, and outputs a low level signal when a graphic ink display is not being output. r)
The output of R1jjJ path 9 is shown in FIG. 5(3). The terminal 10° outputs a signal for determining priority 1-ho. That is, when the output from terminal 0 is high level, priority is given to character display, and when the output is low level, priority is given to graphic display. The output of terminal 10 is shown in FIG. 5(4). Outputs from the NOR circuit 5 and the terminal 1° are input to an AND circuit 11. Also, terminal 1
The output from 0 is passed through 12 inverting circuits to AND circuit 1.
3 and the output from the OR circuit 9 is also input to A N I
) is input to the circuit 13. The outputs from the AND circuits 11 and 13 are input to the OR circuit 14. The output from the OR circuit 14 (is input to the gate 111 of the selection circuit 4).

The input to terminal S is shown in FIG. 5(5). When the input to the terminal S is at a low level, the selection circuit 4 connects the terminals IA to 3A to the terminals IY to 3YK, and when the input to the terminal S is at a high level, the terminals 113 to 3Bi are connected to the terminals IY to 3Y.

m 5 l! l k Reference shite, @ 5 Figure f4i,
1: It can be seen that during the period W 1, 'vV3 (d1) character display is given priority, and in period W2, "glare" ink display is given priority.Period W4 is a period where character display is given priority, but character display is Since no data is output, a graphic display is performed. In period W5, both character display and graphic display are not output, so it is a blank period. Period \v6
Character display is performed because character display is output. The same applies to the periods W7 to Wl,2.

With the above method of prioritizing each aspect, if the graphic aspect and the character aspect are only one per page, only the display shown in the station diagram 3 can be made. That is, there is a drawback that it is not possible to display a train passing between buildings.

Next time when performing a matching display, priority will be given to each color 11k
: One possible method is to add a + position. Fig. 6 is a diagram showing the character display when determining the priority III for each color unit in the prior art, and Fig. 7 1 is a diagram showing the graphic ink display when determining the priority ++X rank for each color unit in the prior art. 8 is a diagram showing a graphic ink display drawn in a different color from the graphic display shown in FIG. Momme, Figure 6, Figure 7 and Figure 8 '1f, 'tli: When displayed together, the character table 7% k When the color 4 shown in Figure 7 is displayed first, it is shown in Figure 9 (2). When the color shown in Figure 8 is displayed preferentially, it is shown in Figure 9 (3). In this prior art, which determines the priority order in the color t\L position, there are more aspects than the method that determines the priority 111i position on a surface-by-plane basis. ][H or JAlso, the drawback is that it is not possible to perform expressions that require the full depth of the character surface, such as having two trains drawn in graphics at the same time in the same color (1♂71i1i), passing all the way in front and behind the building. There were such expressions, graphic representation only by table J)
Although it is possible to perform the overlapping process p-, it is necessary to carry out the superimposition process p- and I''l, which has the disadvantage that the processing time becomes long.

Purpose An object of the present invention is to provide an entire front display method that allows the display mode to be multiplied and that can also be displayed in iM speed.

Jikiko 1i + 1 Character display is mainly used for displaying frequently used characters on both sides, and the pattern data of character 1q is recorded in a memory called character genie l/-yu. . There is a one-to-one correspondence with the pattern data 1α and the code. This is done by writing the previous S1 code?, 1 (characters are Since the pattern data is stored in advance, it is possible to display at a high speed tg just by specifying the above code.When displaying a character, the character color and reverse information H4?-Memory To do this, attribute random access memory (attribute RAM and small memory) is generally used.

In the present invention, in the attribute RA IVI, for example, 1 bit = 2+, q is applied to the bit for determining the priority order, and by reading this bit, the subsequent priority order is completely determined by hardware. Achieve.

Since Nil is allocated to the attribute RAM for each character, priority r can be determined for each character. 11 is a diagram showing a character display for explaining a screen display method according to an embodiment of the present invention, and FIG. 11 is a diagram showing a graph ink display.

Figure 10 and i 11. When displaying 1 and 1 in a superimposed manner, the character shown in Figure 12 (
When the fold tip 1 position of area A shown in 1) is turned off and the priority 11'4 position of area B is turned on, the display is 12th position.
This is shown in Figure (2).

Fig. 13 d Logic circuit for determining the priority order when determining the entire priority order of one embodiment of the main station 1 town [Fig. 14 shows each part of the logic circuit shown in Fig. 13 FIG. Logic circuit 1 is a 19-circuit which selects all the parts to be overlapped in addition to superimposing image data from the memory and displaying it on the display device.

FIG. 14 f1: This is a waveform diagram of a reference clock.

The three additive primary colors red, blue, and green in character display are output from terminals 21 to 23, respectively. Terminal 21
The outputs from the terminals IA to 23 are manually applied to the terminals IA to 3A of the selection circuit 24, respectively. Further, outputs from terminals 21 to 23 are input to the NORM circuit 25C. That is, the NOR circuit 25 id: outputs a low level signal tlfj when the character display is 14, and outputs a high level signal when the character display is not 1. NORIEIll'? The output of i25 is shown in 14th 1(2). Graphic 7+ (the three additive primary colors, red, tφ, and i output from terminals 26 to 2
The outputs are shown from 8 onwards. 1' is output from the babies 26 to 28 to the selection circuit 24 (7) l'i,! child], B~3
Each person is powered by B. The outputs from the terminals 26 to 28 are input to an OR circuit 29. That is, the OR circuit 29
(d When the graph ink display is output, a high level signal is output, and when the graphic display is not output, a low level signal is output. Output lr1 of the OR circuit 29: ;(', Figure 14 (3 ).The terminal 30 outputs all the signals for the first l1tff1 ranking 21'.In other words, when the output from the terminal 30 is at a high level, priority is given to character display, and when the output from the terminal 30 is at a low level, priority is given to displaying the graph ink. Priority is given to the display.The output of terminal 30 is the 14th
This is shown in Figure (4). The cap 31 blocks the output from the RAM. jff', 14
As shown in FIG. 5, when the output from the terminal 31 is at a high level, the character is displayed first. Outputs from terminals 30 and 31 are input to 0104''1 paths 3 and 2. Outputs from the NOR circuit 25 and the OR circuit 32 are applied to an AND circuit 33. Also, the skewer force from the OR circuit 32! The output from the OR circuit 29 is input to the AND circuit 35 via the inverter circuit 34, and the output from the OR circuit 29 is also input manually to the AND circuit 35. The output from the A”ND circuits 33 and 35 is O.
The signal is input to the R circuit 36. The output from the OR circuit 36 is]
It is usually input to terminal S of circuit 24. The human power applied to terminal S is shown in FIG. 14 (6). . When the input to the terminal S is low level, the selection circuit 24 selects the terminals IA to 3A.
Connect to IS@child IY~3Y. The selection circuit 24 inputs manual input to terminals IA to 3A or terminals IB to 3B.
Selectively prioritize Il by outputting to children IY~3Y
It is possible to display only one part that has been completely determined.

Since FIG. 14 (5) is at a high level, character display has priority during period v1. ) υ [during the interval v2, the character display is not being output and therefore the graph ink display is output. Period V31-1 Since neither the character display nor the graph ink display is output, nothing is output. Since the character display is output for 1 Kawama V4, the character display is output. Below period V5. V8
N, a graph ink display is made in the same way, and period V6. V9
Tomo (L'rc nothing was output, and it was t in v8 for I month)
Character display is output.

FIG. 15 is a diagram for explaining the screen display method according to the first embodiment of the present invention and FIG. 16 is a diagram for explaining the entire screen display method according to the embodiment of the present invention. As shown in Figure 115 (1), priority is given to all character display in area C9F, and graph ink display in E? When priority is given, the screen will appear as shown in Figure 15+21. As shown in FIG. 15(2), it is possible to display two rows of cars drawn with different characters and at the same time the entire front and back of a building curved with graph ink. The building shown in Figure 15 (2) is '? It does not have to be displayed in four colors. When priority is given to graph ink announcement in area G shown in Fig. 16 (fl), and priority is given to d character display in '+Irl area H, it is possible to express one sum, one blood, and one blood as shown in Fig. 16 (゜71+21). I can do it.

In such an embodiment, when all 14 IQs for character display are determined, priority 11M can be determined for each character, so that various display modes can be performed. In addition, in order to express the figure by character display, it is possible to show the drawing at a speed of 1ψ without any need for drawing calculations.

Effects As described above, according to the present invention, at least one bit of the kl: attribute random access memory is used as a priority switching bit, so that the entire drawing priority can be determined character by character.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a character display when the priority order is fully determined for each surface in the prior art, FIG. 2 is a diagram showing a graph ink display when the priority order is fully determined for each surface in the prior art, The figure shows the display screen when determining the priority order for each surface in the prior art.■1, Figure 4 shows the logic circuit for determining the priority order when determining the priority order for each surface in the prior art. , jU 5 +・kl are the waveforms ff of each part of the logic circuit shown in FIG. , TQ 7 Figure is the color of the conventional technology, priority 11 to Φ position
Figure 8 shows a graphic display when determining the Fj rank, Figure 8 shows a graphic display drawn in a different color from the graphic display shown in Figure 2B7, Figure 9 shows the graphic display in each color.
FIG. 10 is a diagram showing a screen for determining the priority ranking; FIG. FIG. 12 is a diagram showing a display mode of an embodiment of the present invention, FIG. 13 is a logic circuit diagram for determining priority order when determining the 110 priority order of an embodiment of the present invention, and FIG. 14 is a diagram showing a display mode of an embodiment of the present invention. Figure 13 is a waveform diagram showing the waveforms of each part of the logic circuit, Figure 15 is a diagram showing the screen display method of the 5th fl+ of the present invention, W, Figure 16 is the screen display of one embodiment of the present invention. Method? FIG. 21-23...Character Kaya/Shi's output Genko, 24.
...Selection circuit, 25...NOR circuit, 26-28...
・Graphic display output terminal, 29, 32, 36...
・OR circuit, 33.35...p, N D

Claims (1)

[Claims] In a screen display method that can perform graphic display and character display, at least one bit in the attribute random access memory that stores all the information for character display is used as a bit for switching the priority of the graphics display and character display. A double-sided display method in which character display is preferentially displayed on character degrees in response to the state of the priority clearing bit when performing city 1''1 alignment.