SU1170490A1 - Device for displaying information - Google Patents

Abstract

A device for displaying information containing a gas discharge display panel, two groups of elements And by coordinates X and Y, the outputs of which are connected to the corresponding even and odd information buses of the gas discharge display panel, the main and additional drivers supporting voltage by coordinates X and Y, outputs which are connected to the first inputs of elements And groups, a recording unit and a pulse distributor, two additional discharge voltage drivers, whose outputs are connected by buses the preparatory discharge of the gas discharge indicator panel, the inputs of the pulse distributor, the preparatory discharge voltage drivers and the second inputs of the elements And groups are connected to the corresponding outputs of the recording unit, characterized in that, in order to increase the reliability of the device by eliminating spurious connections between the cells of the panel , two control pulse shapers and a switch are inserted into it along each of the coordinates, switch outputs are connected to the main and additional shaper inputs lei of the supporting voltages and inputs of the control pulse formers according to the coordinates K Y, inputs ko1 «4utators are connected to the corresponding outputs of the recording unit and the pulse distributor.

Description

The invention relates to the field of computer technology, in tachoChTs to information display devices on a gas discharge display panel.

The purpose of the invention is to increase the reliability of the device by eliminating parasitic connections between the panel cells.

FIG. 1 shows a block diagram of a device for displaying information: in FIG. 2 shows control switch circuit diagrams, main and additional voltage suppressors and control impulse drivers for even and odd information buses along the X coordinate in FIG. 3 - time diagrams of voltages on information buses of the indicator panel in the selective erase mode; in fig. And - the location of information tires in the display panel.

The proposed device (Fig. 1) contains a gas-discharge display panel (GUI) 1, odd information buses 2 GUIs, elemental IZ groups, main drivers 4 supporting voltage along the X and Y coordinates, recording unit 5, even information buses 6 of the indicator panel, additional formers 7 supporting voltage by coordinates X and Y, distributor 8 pulses, formers 9 voltage preparatory discharge for coordinates X and Y, bus 10 preparatory discharge indicator panel, switch 11 controlling them Pulse coordinate X, commutators 12 control pulses to the coordinate Y, the two formers 13 control pulses for the odd data lines and two formers 14 control pulses for the even data lines.

The device works as follows.

The input of the recording unit 5 receives information from an external device (not shown), which consists of an address (X- and Y-coordinate codes) and an operation mode command (write-erase).

The address information through the groups of 3 elements I arrives at the information buses 2 and 6 of the display panel 1. In accordance with the code coordinates X and Y, the information buses Xg and yg are selected, the intersection of which forms the selected cell Xd-UV (Fig. 4).

The operation mode command from the output of recording unit 5 is sent to the control input of the distributor 8 pulses, which generates two sequences of pulses: one of them arrives at the input of the switch 11 of the control pulses along the X coordinate, and the other - at the input of the switch 12 of the control pulses along the coordinate W.

- To control the switches 11 and 12, the least significant bit (the galvanic coupling is used) is allocated from the code of the corresponding coordinate coming from the recording unit 5 to the inputs of group 3 of the elements AND. The switch 11 of the control pulses along the X coordinate is controlled by the lowest bit of the X coordinate code, and the switch 12 is controlled by the lowest bit of the Y coordinate.

The switches 11 and 12 of the controllers for cix pulses are similar in structure, each of them contains an inverter 15 and elements And 16 and 17, Inverters 18 and 19, elements And 20-27 (Fig. 2).

The formers 4, 7, 13, and 14 have the same structure and consist of high voltage switches 28–31 and keys 32–35 of bits.

In addition, the recording unit 5 generates the preparatory discharge control pulses arriving at the preparatory discharge tires 10 of the indicator panel 1 through the preparatory discharge voltage drivers 9 in the X and Y coordinates.

When the device is in the information storage mode, the recording unit 5 (FIG. 2) terminates a storage mode signal having a level O which prohibits the passing of the lower digit of the X coordinate code from the unit 5 through the AND elements 16 and 17 of the control pulse switch 11. At the same time, the output of the elements 16 and 17 establishes a level 1, which permits the switch 11 to connect the pulse sequence of the distributor 8 through the elements 20-23 to the input of the main driver 4 (for ne3

even-numbered tires X) and through time to the input of the additional shaper 7 supporting voltage (for even-numbered tires X). At the output of inverters 18 and 19, a level O is set which prohibits the passage of pulses of the distributor 8 to the input of the driver 13 for controlling the pulse (for odd buses X) and the driver 14 (for even buses X). At the same time, the keys for charge and discharge are 30, 34, 31 and 35 drivers

13 and 14 are closed.

Similarly, control switch 12 operates along the Y coordinate (Fig. 1).

The output pulses .U of the main 4 and additional 7 formers of the supporting voltage along the X and Y coordinates provide information storage mode in the cells of the ISU 1.

In the selective erase mode, the signal of the selective erase mode coming from the recording unit 5 has a level 1 and permits the passage of the low-order code of the coordinate X С of the unit 5 through the elements 16 and 17 of the switch 11 of control pulses (Fig. 2). In accordance with the X coordinate code, the switch 11 connects the pulse sequence of the distributor 8 to the input of the former 13 (for odd buses X) or to the input of the former 14 (for even buses X).

If, for example, the low-order code of the X coordinate is O, which corresponds to the choice of an even information bus Xg, then O 16 is outputted by O, which prohibits the passage of the pulses of the distributor 8 to the inputs of the AND elements 20 and 21. In this case, the charge key 28 additional 7 sustainer voltage drivers are closed.

The output of the inverter 18 is set to level 1, which gives permission for the passage of pulses of the distributor 8 through the elements 24 and 25 to the input of the driver

14 control pulses (for even data busses). Formed. 14 pulse is generated

A selective erase (Fig. 3), equal in amplitude to the voltage maintaining the charge Ufj, which through

70490.4

And 3 elements of the corresponding group are fed to the selected Xg even information bus 6 of the indicator panel 1, leaving all the cells 5 of the Xg bus in the same state (with memory).

At the same time, the output of the inverter 19 is set to the level O, which prohibits the passage of the pulses of the distributor 8 through the elements 26 and 27, and the output of the element 17 is level 1, which allows the passage of the pulses of the distributor 8 through the elements fS And 22 and 23 to the input of the main driver 4 supporting voltage, with the key 29 for the driver 4 is closed, and the key 33 bit open. At the same time, all odd 20 information buses are closed

to the earth through groups of 3 elements And and through open the key 33 bits yes.

If the least significant bit of the X coordinate code is level 1, then odd 2 information is selected

tire Hz. In this case, the key 28 charge. is closed, and the 32-bit key is open, and all even 6 information buses X through the corresponding groups 0 3 elements AND and the public key 32 bits close to ground, and driver 13 generates an impulse A arriving at the odd 2 information bus Xg through the elements - And groups 3. And after the time t required for accumulation of charge on the dielectric layers of the indication cell (t is less than the duration of the impulse to maintain the charge U), in the same way it will work by the choice of even 6 or odd 2 information bus Ur. a switch 12 of control pulses along the Y coordinate (see Fig. 1), and the driver 13 (for odd buses Y) or the driver 14 (for even buses Y) produces a pulse B equal to the amplitude of the erase voltage Ug, with which the charge is removed Q from the selected cell X g - Level of the flat panel 1 (Fig. 3).

The magnitude of the amplitudes of the pulses A and B depends on the magnitude of the supply voltage of the formers 13 and 14 along the coordinates X and Y.

As a result, adjacent to the selected information bus XC and MS in both coordinates are

connected to the ground, forming a screen around the Xg-Yg cell (Fig. 4). This greatly reduces the relationship between the cells.

Therefore, the introduction to the display device switches 11

and 12 control signals on the X coordinate and Y coordinate, as well as two control pulse drivers 13 for odd data buses and two drivers 14 for even data buses, improves the reliability of the display device.

information

FIG. 2

Claims (1)

DEVICE FOR DISPLAYING INFORMATION, containing a gas-discharge indicator panel, two groups of elements AND in coordinates X and Y, the outputs of which are connected to the corresponding even and odd information buses of the gas discharge display panel, the main and additional shapers of the supporting voltage along the X and Y coordinates, the outputs of which are connected to the first inputs of the elements And groups, the recording unit and the pulse distributor, two voltage shapers additional discharge, the outputs of which are connected * with the tires of the preliminary discharge of the gas discharge indicator panel, the inputs of the pulse distributor, voltage conditioners a separate discharge and the second inputs of the elements and groups are connected to the corresponding outputs of the recording unit, characterized in that, in order to increase the reliability of the device by eliminating spurious connections between panel cells, two control pulse shapers and a switch, switch outputs, are introduced into each coordinate connected to the inputs of the main and additional shapers of the supporting voltages and the inputs of the shapers of the control pulses along the coordinates X Y, the inputs of the switches are connected to the corresponding outputs of the recording unit and the pulse distributor.