JPS5986089A - Display unit - 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 of the Invention] The present invention relates to a flow of water, '1g! The present invention relates to a display device that displays branched flows such as air flows and signal flows as flows of light in order to monitor or display them, and particularly relates to a display device that can easily control the direction of light flow.

[Technical background of the invention and its problems]

A display device according to the prior art will be explained using the example shown in FIG.

For example, to indicate that a signal has been sent from person B, light is sent from 14 to 15 inches, then from 16 to 17.
Light is sent from 19 to 18, and then light is sent from 19 to 18. At this time, conventionally, one set of light emitting parts from 14 to 15,
One set of light emitting parts from 16 to 17, and another set from 19 to 18
Each set has a signal path for sending one flashing symbol in the opposite direction, and the flow of light is controlled using a relay or the like at the connecting part. Alternatively, a method is adopted in which all possible combinations of signal flows are assumed in advance, signal paths corresponding to all these flows are provided, and corresponding paths 1 to 1v are opened depending on the signal flow. (However, the method of No. 7 and No. 011 has the problem of reduced reliability due to deterioration of relays, etc., and also makes the configuration complicated.

However, the latter method requires a large number of wires,
The equipment becomes large-scale and repairs become extremely complicated.

In order to solve these problems, there has been a desire for a display device that has a simple circuit, is easy to control, and is easy to repair.

[Object of the Invention] In view of the above points, the present invention provides a display device obtained by connecting simple light emitting device parts of the same type (¥#), which requires less wiring and can display any signal flow. Display device in: + aims to provide.

[Summary of the Invention] The present invention has a resistor in each light-emitting tube, and applies a voltage between the starting point and the ending point of the signal flow to reduce the VC center difference between both ends of the resistor. It is configured to give the direction of the signal flow depending on the direction of the difference in the frame position, and sends the six lights on the source side of the blinking signal or the lights-out signal downstream according to a separately provided clock signal. This provides a display device 6 configured as follows.

Embodiment J of the Invention An embodiment of the invention will be described with reference to the embodiment of FIG. 2. The light guide signal determining the signal flow is provided from 29 signal paths.

This light guiding signal is given by, for example, maintaining the starting point of the signal at +5V, the ending point at -5V, and the other ends at +5V. In this way, a potential difference is generated between both ends of the resistor 21, and the comparator 22 obtains a positive or negative sign depending on the direction of the potential difference. This positive or negative signal is
A signal of opposite phase is applied to the inhibit terminals of shift registers 24 and 25, and only one of the 7-shift registers operates.

This shift register is blinking (po number is 30 or 31)
The signal is added from the direction of , and is sent out in the direction of 31 or 30, respectively, depending on the clock 28. The blinking 1 word drives the light emitting element 27 through the driver 26 (Z).

[Efficacy of invention]

As described above, according to the present invention, each light emitting device section has a symmetrical configuration, and is powered by only five signal lines for input and output, including the forward source and ground tone, and The whole is constructed by connecting units of the same configuration one after another. Even at a branch point where 17.19°20 in Figure 1 intersects, it is sufficient to simply connect the signal lines of the three units.In Figure 1, for example, from A to B
For example, set d18 to -
5, and all terminals 14, 22, and 26 are connected to +5V.
If a blinking signal is sent from 14 as shown in FIG.

Also, for example, to display how the signal sent from A is distributed to 13 and D, set A and C to +5V,
It is sufficient to set 13 and D to -5V and send a blinking signal from A. In this way, a starting point and an ending point are given to any one signal flow, and the display is completed just by giving one flashing word from the starting point. The flashing number 18 may be a pulse-pulse, or it may be of a type that maintains the pulse until the light reaches the end point.

[Other Embodiments of the Invention] The present invention is not limited to the above-mentioned embodiments. ) Only the 7th place can be configured to lower - (raise), or multiple light emitting elements can be blinked using multiple signal lines in one blinking word, for example, to send a sentence or a figure like electric news. 1'1, or it has two light emitting elements of different colors, and depending on the polarity of the output of the comparator, one of the light emitting elements is turned on so that the color changes depending on the direction. It is also an ability to do things.

[Brief explanation of drawings]

Figure 11 shows an example of the display device Ft, 2■λ2
The figure does not show one embodiment of the display device of the present invention. Resistor 22...Ratio; ht unit 23...Inverter 24, 25...
/Ftl/Jister 26...Driver 27
...Light emitting element 28...Clock signal line 2
9... Light guide signal line 30.31... Flashing signal line

Claims (1)

[Claims] In a device that displays a branched flow using light, the light emitting unit is composed of a set of a plurality of light emitting devices, and each light emitting device has a light guide signal for determining the flow of light, a lighting signal for determining blinking, Inputs a clock signal that sends light one after another, detects the direction in which the light flows from the voltage gradient of the light guide signal, sends a lighting signal in that direction according to the clock, and lights up or turns off according to the lighting signal. A display device characterized by being configured as follows.