SU1124375A1 - Device for displaying information - Google Patents

Abstract

A DISPLAY DEVICE, INFORMATION, containing a gas discharge display panel, tire sampling units according to X and Y coordinates, the outputs of which are connected to vertical and horizontal tires of the panel, respectively, a frame charge generator, the outputs of which are connected to the corresponding buses of the discharge indicator panel, a generator supporting voltage, the outputs of which are connected to the first inputs of the bus sampling units along the X and Y coordinates, the second inputs of which are connected to the output of the input unit connected to the sync Atomic power supply unit whose outputs are connected to the third inputs of the tire sampling units according to the coordinates X, Y and the first inputs of the supporting voltage generator and the frame charge generator, characterized in that, in order to reduce power consumption and increase reliability, the device is entered a pulse generator connected in series, an OR element, an AND element and a trigger, a threshold element, and a group of AND elements whose first inputs are connected to the trigger output j and the second inputs to the corresponding synchronization outputs the pulse generator is connected to the output of the input unit, the input of the frequency divider and the second trigger input is connected to the corresponding synchronizer output, the output of the frequency divider is connected to the second input of the OR element, the third input of which is the device input, the second input of the AND element is connected to the output of the threshold element, the input of which is connected to the output of the power supply unit, the outputs of the elements AND of the group are connected to the input of the input unit, the fourth inputs of the tire sampling units along the X, Y coordinates and the second inputs of the generators holding voltage and frame charge.

Description

The invention relates to information display devices and is intended to reproduce data on indicator (matrix panels). Information display devices are known that contain a gas discharge DC panel, which buses are connected to the information block connected to the synchronization unit through the first and second addressing blocks, power supply unit l 1 However, the DC display panel contained in these devices does not have the property of internal memory; therefore, These images are carried out by periodically regenerating information with a frequency exceeding the critical frequency of flashes. The connection time of cells that participate in image synthesis in such devices depends on the number of buses on the display panel. of the cells is reduced and it may be equal to the delay time of the ignition of the cells, which leads to unreliable reproduction of information. The closest technical solution to the invention is a device for indication, containing a gas discharge AC display panel, the horizontal buses of which are connected respectively to the outputs of the first and second addressing blocks, whose inputs are connected to the outputs of the information block, connected to the synchronizer, the generator of the voltage-maintaining outputs of which are connected to the first and second blocks addressing generator frame voltage, the outputs of which are connected to the frame bus, the power supply unit connected to the frame and supporting voltage generators., the first and the second addressing block, 2. In this device, the information is reproduced on an alternating current display panel with an internal memory property, therefore the brightness of the image being formed does not depend on the number of the display panel. However, to save the image on the display panel, not all of its cells need to be supplied with a supporting voltage with high amplitude stability. For example, for an AC gas discharge display panel with a number of electrodes, the voltage to maintain the discharge can be changed only by i3.5 V. When the amplitude reaches a persistent voltage beyond the permissible limits, distortions of the information reproduced on the panel occur and for recovery in general If necessary, all cells must be extinguished and re-ignition required. If the time of recording information in one cell is 20-60 µs, then to restore the image,. synthesized from 10–15 thousand cells (15–23% of all GIP 256 256 256 cells) requires 2–9 s, which is unacceptable in a number of cases. When the device is switched to the operating mode from the standby, allowing the power supply voltage to be disconnected from the display panel, only about 20 ISS are required, which allows reducing the power consumption of the indicator and increasing the operating time. In addition, when the operating mode is turned on in the specified device, the time for the operator to transmit information is increased due to the availability of the ready time for the display panel, depending on the ambient light. In particular, for the GUI 256-256, the panel readiness time for illumination of 40 ± 10 lx is 5 s. Thus, the drawbacks of the device for displaying information are the distortion of information during a short-term overshooting of the power supply voltage of the display panel and the considerable time required to prepare the indicator for operation, the high power consumption and the short time the device has been used. The purpose of the invention is to reduce power consumption and increase reliability. The goal is achieved by the fact that in a device for displaying information containing a gas discharge display panel, tire sampling units according to X and Y coordinates, the outputs of which are connected to the vertical and horizontal tires of the panel, respectively, are the frame charge generator, the outputs of which are connected to the respective gas secrets one of the indicator panels, a voltage-generating generator, whose outputs are connected to the first inputs of the bus sampling units by coordinate (X and Y, the second inputs of which are connected to the output input locks connected by a synchronizer, a power supply unit whose outputs are connected to the third inputs of the tire sampling units according to the coordinates X, Y, and the first inputs of the voltage suppressor generator and the frame charge generator, are connected in series to the pulse shaper, And element and trigger, threshold element and group of elements, the first inputs of which are connected to the trigger output and the second inputs to the corresponding outputs of the synchronizer, the input of the pulse generator connected to the output of the input unit, input d frequency unit and the second trigger input are connected to the corresponding output of the synchronizer, the output of the frequency divider is connected to the second input of the OR element, the third input of which is the device input, the second input of the AND element is connected to the output of the threshold element, which input is connected to the output of the power unit , the outputs of the elements AND of the group are connected to the input of the input unit, the fourth inputs of the tire sampling units along the X, Y coordinates and the second inputs of the supporting voltage generators and the frame charge generators. The drawing shows a block diagram of the proposed device. The device contains input unit 1, first 2 and second 3 sampling blocks by coordinates X and Y, gas discharge display panel (alternating current) 4, generators of frame 5 charge and supporting 6 voltage, synchronizer 7, group of elements AND iS, trigger 9, frequency divider 10, pulse shaper 11, element OR 12, element 13, device input 14, threshold element 15, power supply 16. The operation of the device is as follows. Let trigger 9 be in state 1, which corresponds to the operating mode. Then, when the synchronizer forms 7 consecutive signals passing through the elements of group 8. Support voltage generator 6 develops a support voltage, which, through the first 2 and second 3 blocks, is fed to the information tires of the gas from the rear panel 4, ensuring the operation of the cells in a bistable mode, the control of the first 2 and second 3 blocks of the sample, which form the cells, are selected the electrodes of the gas discharge display panel 4 of the alternating current, the recording and erasing signals, is provided by the input unit 1, which absorbs the coordinate codes supplied to the first 2 and second 3 blocks of choice ki and the control command code is supplied to the synchronizer 7. After completion of the control command through synchroniser 7 and Group 8 elements vschaets enable signal to change the code coordinates and control command codes. Simultaneously with the generation of control signals for the generator 6 supporting the voltage synchronizer 7, control signals are issued to the frame charge generator 5, which ignites the frame cells, which improves the ignition conditions of the information field of panel 4. The image on the display panel is reproduced supplying high (around tOO V) voltage from power supply 16 to supporting generators 6 and frame 5 charges, as well as to sampling blocks 2 and 3. If a short-term power supply voltage of the panel is out of acceptable limits when the display device is operated, then the threshold element 15 generates a logical signal O, which is recorded by the output signal of synchronizer 7 into trigger 9. The switching of trigger 9 is performed on the front of the control pulse of synchronizer 7, which ensures the formation of a front supportive tsego tension. The frequency of pulses j providing the switching of the trigger 9 is equal to the frequency of the supporting voltage. After the trigger 9 is installed, the device O is switched to the standby mode, in which neither the control nor the frame voltage of the charge is supplied to the panel cells. Consequently, the voltage on the panel dielectric does not change to the formation of successive pulses at the outputs of elements of group 8. S1; and lowering the voltage of the panel 4 to the allowable limits of the output of the threshold element 15 produces a logical 1 signal, which with the next signal of the synchronizer 7 is written to the trigger 9 Then the logical 1 signals are fed to the inputs of the elements of group 8 and the control signals of the synchronizer 7 are fed to the generator 6 supporting voltage, first 2, second 3 blocks of choice, and frame charge generator 5. Since all control signals do not arrive at the output of the AND 8 block, the display device returns to the state prior to disconnecting the signals from synchronizer 7. In this device it is possible to forcibly set the standby mode, which is provided by a signal at input 14. In this case The input element OR 12 is given a logical O signal and in the absence of signals at the output of the pulse generator 11 and the frequency divider 10 at the output of element 12, and consequently, the level Hb O logic that the next pulse synchronizer 7 recorded in the trig ger 9. A further operation of the apparatus already considered in the standby mode. Since the key elements of the first 2 and second 3 sampling units and the frame charge generator 5 have a final resistance, the voltage across the dielectric layers of the gas discharge AC display panel 4 varies, which can distort the information reproduced on the panel. In order for the voltage on the dielectric layers of the panel not to change significantly, the output signal from the 10 frequency division of the pulses periodically with a large duty cycle through the elements 12 OR and 13 is fed to the information input of the trigger 9, ensuring its switching to the single state 56 and for one period under holding stress. In this case, the voltages stored on the dielectric layers of the gas discharge display panel are regenerated. To change the information reproduced on the gas-discharge indicator panel 4, the input unit 1 supplies the command code, which, besides the synchronizer 7, is fed to the driver 11, the output of which forms a signal-logical 1. The output signal of the driver 11 through the elements OR 12 and And 8 enters the information input of the trigger 9. When it arrives at the clock input pulse from the output of the synchronizer 7, the trigger 9 switches, ensuring the device switches to the operating mode. The duration of the top: a single signal from the pulse generator 11 is chosen so as to ensure not only the change of information on the gas discharge display panel 4 of the alternating current, but also the analysis of the newly reproduced information. Thus, when the information changes, the device is automatically put into operation. This allows the operator to improve the working conditions, since the presentation of information in standby mode is carried out only when the image changes, attracting the attention of the operator. In addition, the use of a standby mode with periodic voltage supply to the gas discharge indicator: an alternating current panel 4 allows maintaining a sufficiently high level of ionization of the interelectrode gaps. The technical efficiency of the proposed device consists in reducing power consumption, increasing the operating time, decreasing the indicator readiness time and storing information on the AC gas discharge panel with a short-term overshoot of the display panel supply voltage limits.

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Claims (1)

DEVICE FOR DISPLAYING INFORMATION, comprising a gas discharge indicator panel, bus sampling units in X and Y coordinates, the outputs of which are connected to the vertical and horizontal tires of the panel, respectively, a frame charge generator, the outputs of which are connected to the corresponding tires of the gas discharge indicator panel, a support voltage generator, the outputs of which are connected to the first inputs of the bus sampling units at the coordinates X and Y, the second inputs of which are connected to the output of the input unit connected to the synchronizer, b power supply, the outputs of which are connected to the third inputs of the bus sampling units in the X, Y coordinates and the first inputs of the supporting voltage generator and the frame charge generator, characterized in that, in order to reduce power consumption and increase reliability, a pulse shaper is introduced into the device, OR element, AND element and trigger, threshold element and group of AND elements, the first inputs of which are connected to the trigger output j and the second inputs - with the corresponding outputs of the synchronizer, the input is formed the pulse divider is connected to the output of the input unit, the input of the frequency divider and the second trigger input are connected to the corresponding output of the synchronizer, the output of the frequency divider is connected to the second input of the OR element, the third input of which is the input of the device, the second input of the AND element is connected to the output of the threshold element, the input of which connected to the output of the power supply, the outputs of the elements AND groups are connected to the input of the input unit, the fourth inputs of the bus sampling units at the coordinates X, Y and the second inputs of the supporting voltage generators and frame charge. SUb, 1124375, when the panel is enlarged, the connection time · of the cells decreases and can equal the delay time of the cells, which leads to non-reproduction of information. 1 1124375