SU1377895A1 - Device for displaying data on gas-discharge display panel - Google Patents

Abstract

The invention relates to automation and computer technology and can be used in control devices for gas discharge indicator panels (GIL). The purpose of the invention is to increase the reliability of the device by eliminating the charge of wall receptacles of unselected cells. The goal is achieved by the fact that in the device containing the control unit NIN 10 with the information input 11, III 9, the pulse generator 12, the tire selection units are divided into even 1, 2 and odd 3, 4 and 4 their respective control circuits, containing supporting voltage generators 5, shapers of write-erase pulses 6, distributors, pulses of pulses 7, 15, 18, commutators 8, delay blocks 14, 17, and drivers 13, 16 of control pulses, In the device to odd and even electrodes during the action of the write or erase pulses, different holding voltages are applied,. which prevents the proliferation of the ISU cell, 2 Il. (L from 00 O1

Description

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The invention relates to automation and computer technology and can be used in devices for displaying information containing gas discharge display panels of alternating current (HIP).

The purpose of the invention is to increase the reliability of the device by eliminating the charge of wall vessels of unselected cells.

FIG. 1 is a block diagram of a device for displaying information; in fig. 2 - time diagrams of the device.

The device contains the first blocks 1 and 2 of the choice of tires on the coordinates X and Y, connected to the odd tires of the ISU, the second blocks 3 and 4 of the choice of tires on the coordinates X and Y, connected to the even tires of the ISI, the corresponding supporting voltage generators, drivers 6: , -6, write-erase pulses, distributors 7, -7 pulses and switches 8ts-8, GUI 9, control unit 10 one of the inputs of which is input 11 of the device, generator 12 pulses, first shaper 13 control pulses, first block 14 of delay, fifth distributor 15 impulses cos second driver 16 control pulses, the second delay unit 17, the sixth valve 18 pulses.

Bus selectors 1–4 perform the functions of address decryption, superposition of control pulses on the voltage to maintain and feed the resulting voltages to the corresponding groups of inputs of the ISU 9 with electrical isolation of the latter.

Voltage generators 5, -5 form high-voltage

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(100 V and more) pulses of the stepped j pulses and the first driver 13 of the form, which are obtained by the alternating action of three electronic keys. The duration of the steps depends on the mode of operation and can take the value of-g from the minimum (0.5 μs) to the maximum (10 μs).

The formers of 6-6 write-erase pulses send high-voltage (over 70 V) control pulses to the bus selectors: for the X-positive polarity coordinate, for the Y coordinate — negative.

The pulse distributors of the maintenance voltage are given out to

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pulses and the same connection unit 17 with the sixth distributor 18 pulses and the second driver 16 pulses. The difference in the functioning of the SRI of blocks 13–15 and 16–18 is only in the position of the delay signal in the time diagram defined by the distributors 15 and 18.

The control unit 10 converts the code of the displayed information into the sequence of control signals of the GUI and is a specialized digital computer with the following operation algorithm in the case of displaying a segment

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the power transistors of the respective generators control signals determining the time diagram of the supporting voltage. The operation of the distributors is determined by a sequence of clock pulses coming from the respective switches 8, -8 whose control inputs are connected to the outputs of the control unit 10, which signal on which (even or odd) HIP electrodes are sampled. In addition, block 10 outputs addressing signals to blocks 1-4 and control signals (writing or erasing) to the control pulse generators 13 and 16. The source code of the displayed information enters the block 10 at the input 11 of the device.

The pulse generator 12 synchronizes the operation of the entire device and, as a rule, is a quartz oscillator with a frequency of 1 MHz or more.

The first information inputs of the switches determine the operation of the generators 5, -54 for selected groups of GUI electrodes, the second information inputs for the unselected groups. These inputs are connected to the outputs of the first 14 and second 17 delay blocks, respectively. These blocks, in the maintenance mode, transmit the signal of the pulse generator 12 to the distributors 7, -7 pulses. In the write or erase mode, the corresponding step of the pulses of support Y or X is lengthened for the selected groups of HIP electrodes or the leveling lengthening of the time diagram outside the step. This function of delay blocks 14 and 17 is provided by connecting the block 14 to the first valve 15

pulses and the first driver 13

pulses and the same connection unit 17 with the sixth distributor 18 pulses and the second driver 16 pulses. The difference in the functioning of the SRI of blocks 13–15 and 16–18 is only in the position of the delay signal in the time diagram defined by the distributors 15 and 18.

The control unit 10 converts the code of the displayed information into the sequence of control signals of the GUI and is a specialized digital computer with the following operation algorithm in the case of displaying a segment

direct length A in the direction (1,1) -,. the beginning of which has coordinates (B „, CJ:

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2 3

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Setting the tag entry. Output starting address (VOSd) Display point. Change of address B + 1, i С-С -I- 1.

5. Analysis of the current address A.

6. Return to 3.

7. Stop

The device for displaying information operates as follows.

In the maintenance mode with preservation of the information previously recorded in the GIL, the GIL inputs through the bus selection blocks 1–4 from the generators 5 are fed supporting voltages X and Y (in Fig. 2, diagrams 19 and 20, respectively, 20), whose fronts are determined by the signals of the pulse distributors 7. In this case, the resulting voltage acts on the GIL cells (figure 21), and in the previously recorded 25 cells, discharges occur from the recharging of wall vessels. At the same time, the amplitude of the resulting voltage is insufficient for igniting new GIL cells.

The recording mode begins with the arrival of a signal. Recording from the control unit 10 to the input of the imager 13. Lo this signal, if there is a signal from the distributor 15 (diagram 22) on

from the signal from control unit 10: if the GIL bus group corresponding to switch 8 is selected, pulses are transmitted according to diagram 23, otherwise, according to diagram 24. As a result of shifting pulses 24 and due to a special form of supporting voltage during control pulses on an unselected group of electrodes, the support voltage is less for the X coordinate and more for the Y coordinate (see the shortened dotted line in diagrams 19-21).

The features of the shape of the supporting voltage are the presence of a step in the supporting voltage along the X coordinate and a short-term increase in the supporting voltage along the Y coordinate. As a result of the delay shift, the necessary variation of the supporting voltages for the non-selected parity electrodes is provided. Due to this, the GIL cells adjacent to the ignited ones do not spread strongly and the charge of the wall container remains equilibrium. For electrodes of the same parity as the selected one, the supporting voltage does not change (the solid line in diagrams 19-21

On the selected groups of CIP cells, only those cells that are affected by the control pulses are burned.

the output of the former 13 (diagram 22 in both coordinates (upper elongated dotted line in diagram 21).

A write control signal appears at the inputs of drivers 6i, 6j and determines the receipt of high-voltage recording pulses. The same signal of the imaging unit 13 arrives at the delay unit 14 and stops the passage of pulses from the generator 12 to the switches and the distributor 15 for the time specified in block 14 (diagram 23), which allows you to receive control write-erase pulses of the required duration ( Diagrams 19–21 are shown as elongated dotted lines. Similarly to blocks 13-15, blocks 16-18 operate, but distributor 18 gives a delay signal two clocks later than distributor 15, and the corresponding sequence of pulses fed to the other inputs of switches 8 is also shifted (Figure 24). These pulses (diagram 23 or 24) pass through the switches depending

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from the signal from control unit 10: if the GIL bus group corresponding to switch 8 is selected, pulses are transmitted according to diagram 23, otherwise, according to diagram 24. As a result of shifting pulses 24 and due to a special form of supporting voltage during control pulses on an unselected group of electrodes, the support voltage is less for the X coordinate and more for the Y coordinate (see the shortened dotted line on diagrams 19-21).

The features of the shape of the supporting voltage are the presence of a step in the supporting voltage along the X coordinate and a short-term increase in the maintenance voltage along the Y coordinate. As a result of the delay shift, the necessary variation of the maintenance voltage for the non-selected parity electrodes is provided. Due to this, the GIL cells adjacent to the ignited ones do not spread strongly and the charge of the wall container remains equilibrium. For electrodes of the same parity as the selected one, the supporting voltage does not change (the solid line in diagrams 19-21).

Only cells that are affected by control pulses are lit on selected groups of GUI cells.

 along both coordinates (upper extension along both coordinates (upper extension 0

dashed lines in diagram 21).

The erase mode starts with the arrival of the signal. Erase from the control unit 10 to the input of the former 13,

Lo this signal in the presence of a signal from the distributor 15 (figure 25). At the output of the former 13, a control erase pulse appears. 5 Similarly to the recording process, this pulse lengthens and the pulses from the commutation are delayed. tori 8, -8 on the distributors 71-7. The difference is only in the position of the erase pulse in the place of the timing diagram where the maintenance voltage along the X coordinate is zero, and along the y coordinate is the average level. In the case of sampling SIL cells in both coordinates, these cells are discharged without recharging the wall receptacles, and no further cell discharge maintenance occurs during further cycles.

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The introduction of additional generators supporting voltage pozvo. It is possible to apply a different voltage to the even and odd electrodes of the GIL. This allows the generators to be stopped at different times, to achieve that on neighboring with the ignited cell of the ISU there is a difference of supporting voltages, preventing the distribution of the strong discharge of the ISU cell.

Claims (1)

Invention Formula . . A device for displaying information on a gas-discharge display panel containing the first bus selectors for the X and Y coordinates, out-; whose strokes are connected to odd vertical and horizontal tires of the gas-discharge display panel, the first pulse distributor whose output is connected to the input of the first a supporting voltage generator, a second supporting voltage generator, the outputs of the first and second supporting voltage generators are connected to the first control inputs of the first selection blocks yn the coordinates X and Y, the second control inputs of which are connected to the outputs of the first and second pulse shaping recording-erasing, inputs of which are connected to the output of the first shaper controls w. pulses and the control input of the first delay unit, whose information input is connected to the output of the pulse generator and the clock input of the control unit, the first output of which is connected to the control input of the control pulse generator, and the second output of the control unit tires along the X and Y coordinates, the information input of the control unit is an input of the device, characterized in that, in order to increase the reliability of the device by eliminating the charge night receptacles of unselected cells, the second tire selection units are introduced in it by X and Y coordinates, the outputs of which are connected to even vertical and horizontal tires of the gas discharge display panel, the second, third and fourth pulse distributors, the third and fourth suppressor voltage generators, and outputs which are connected to the first control inputs of the second tire selection unit by coordinates X and Y, and the inputs to the outputs of the third and fourth pulse distributors, respectively, the output of the second distributor of impulses The first, second, second, third, and fourth switches, whose outputs are connected to the inputs of the first, second, third, and fourth pulse distributors, control inputs of the switches, respectively, are connected to the third, fourth, and the fifth and sixth outputs of the control unit, the second delay unit, the fifth and sixth pulse distributors, the input of the fifth pulse distributor is connected to the output of the first delay unit and to the first information inputs switches, the second information inputs of which are connected to the output of the second delay unit and to the input of the sixth pulse distributor, the second shaper of control pulses, the control input of which is connected to the BbiM output of the control unit, the information input to the output of the sixth pulse distributor, and the output with the control input of the delay unit, the information input of which is connected to the output of the pulse generator, the information input of the fifth driver of the control pulse is connected to the output of the fifth distribution Itel impu The second output of the control unit is connected to the address inputs of the second, bus selection units by the X and Y coordinates. nineteen 20 T1 R L g-is 22 23 Mill Illlllllllllirif III V Hill I III III III III III III 25n. Illlllllllllllinillllllll P111111P1TTTL1LTPL Phage.2