SU1539824A1 - Device for displaying information on light-emitting panel screen - Google Patents

Abstract

The invention relates to information display devices and can be applied when implementing information boards in automated control systems, automated process control systems, computer display terminal devices, and television receiver terminal devices. The aim of the invention is to simplify and increase the reliability of the device by reducing the number of control channels of the light-emitting panel. The goal is achieved by the fact that a device containing a television signal receiving unit 1, a video amplifier 2, a horizontal scanning unit 3, a synchronization unit 4, a vertical scanning unit 5, a light emitting panel 6 with horizontal electrodes 7, a light emitting layer 8, transparent vertical electrodes 9, The first and second ring counters 10, 11 are introduced, the first and second switches 12, 13, and additional horizontal electrodes 14 and a liquid crystal film 15 are introduced into the light-emitting panel 6. The introduction of additional electrodes blocks and connections allows to reduce the number of elements controlling the light-emitting panel and thereby increase the reliability of the device. 1 il.

Description

 Genius refers to the data display mapping devices and can be used in the implementation of information boards in the LPSP AC systems; v ni, TVM display terminals, as well as telechio receiver receivers.

The aim of the invention is to simplify and increase the reliability of the device by reducing the number of control panel lights of the light-emitting panel.

The drawing shows the functional diagram of the device.

The device comprises a television signal receiving unit 1, a video amplifier 2, a horizontal scanning unit 3, a synchronization unit 4, a vertical scanning unit 5, a light-emitting panel 6, horizontal electrodes 7, a light emission 1 common layer 8, transparent vertical electrodes 9, a first ring counter 10, the second ring counter 11, the first switch 12, the second switch 13, additional horizontal electrodes 14, the liquid crystal film 15.

The horizontal scanning unit 3 contains the first and second registers 16 and 17, the first switch 12 contains a key block 18 and resistors 19 connected to one of the power supply tin. The second switch 13 contains a block of 20 switches and resistors 21 connected to a different power bus.

The horizontal electrodes 7 are arranged vertically with the horizontal television scanning step of the reproduced image. Transparent vertical electrodes 9 are arranged in steps equal to the pitch of the elements in the television line. Additional horizontal electrodes 14 are connected to the outputs of block 18 of the keys of the first switch 12. The number of additional horizontal electrodes 14 reduces the number of control keys in blocks 18 and 20. Electrodes 14 can be made as horizontal and / or vertical electrodes and can be combined groups.

The device works as follows.

The signals of the block 1 of the reception of the television signal video amplifier 2 outputs to the information input of the block

s

0 5

0

five

Burn information directly. (Today, the TV pickup receiver 1 separates the clock signals mixed with the information signal (for example, TV signal), which are fed to the inputs of the synchronization unit 4 and under which the synchronization unit 4 selects the beginnings and line ends of the TV rac , the beginnings and ends of the frames that arrive at the inputs of the vertical scanning unit 5. The synch signals of the beginning and end of the lines allocated by the unit 4 are also fed to the control inputs of the horizontal scanning unit 3.

For the selected sync pulses of the beginning and end of the frames, the vertical scanning unit 5 embraces the ring counters 10 and 11, each of which, for example, for the TV signal of the SCLCM system is made in 25 positions. This leads to resetting of the blocks 18 and 20 of the keys, which are made, for example, in the form of 50 keys of identical power. On arrival from the sync pulse 4 of the first line of the TV raster, the vertical scan unit 5 converts to counters 10 and 11, which leads to the appearance of a positive potential on the first electrode 10, and a potential O on the first electrode 14, then, in turn, with the appropriate arrangement of the light-emitting layer 8 of panel 6, this causes a glow to appear Astka light-emitting panel 6 in the form of a horizontal strip of equal luminance width equal to the width of the horizontal electrode 7.

In this case, a positive potential appears not only on the uppermost electrode 7, but also on the 26th, 51st, 76th, 101st, etc. on the account above. However, this does not cause luminescence of the corresponding sections of the light-emitting panel 6, since the 2nd, 3rd, 4th, ..., 25th electrodes 14 are under a positive potential equal to the potential of the selected electrodes 7 (1st, 26 th, 51st ..., 601 th)

Simultaneously, the horizontal scanning unit 3 is forcibly zeroed by the sync pulse of the beginning of the frame, and the parallel scanning unit 4 starts the element-by-element memory of the current output signal of the video amplifier 2 by the sync pulse of the first row. vertical electrodes 9.

Since any signal of the 2G video amplifier other than zero, has a positive potential with respect to potential O, in sections of the liquid crystal layer 15, limited on one side by the selected electrode 14 and on the other side by transparent vertical electrodes 9, transparency windows are formed, the transparency of which is proportional to the control potential supplied onto a particular control electrode 9. Transparency windows appear across the entire width of the selected electrode 14, however, since the light-emitting layer 8 is only illuminated ASTK bounded by electrode 14 and the selected one of the group selected electrodes 7, vysvechivaets result in one line of the reproduced image.

According to the sync pulse of the beginning of the second line, the horizontal scanning unit 3 begins to accumulate information about the current output values of video amplifier 2, which is output to the electrodes 9 by the sync pulse of the end of the second line to the playback of the second line. the appearance of a positive potential at the output 2 of the block of 20 keys and on the 2nd, 27th, 52nd, .. ,, 602th electrodes 7. This leads to the occurrence of a current between the 2nd electrode 7 and the first selected ( xy) electrode 14 with the luminescence at an appropriate portion svetoizluchakschego layer 8 and the light emission on the outer side of the light-emitting panel 6, the information contained in the second line TV raster.

Further, the information display cycles are repeated in a similar manner with a period equal to a horizontal scanning period, for example 64 µs, with a change by one of the current state of the ring counter 11 at the end of each horizontal scanning period 4 to state 25. At the end of the recording cycle

ten

20

five

by the horizontal scanning unit 3, contained in the 26th row, by the sync pulse 1 of the 26th finishing line, the vertical scanning unit 5 sets the ring counter 11 to the position 1, which causes the ring counter 1 1 to be switched to the position 2 and fed O to the second electrode 14. As a result, because under the action of the ring counter 11, the key block 20 supplies positive potentials to the 1st, 26th, 51st, ..., 601th electrodes 7, 15 between the 26th electrode 7 and the second electrode 14 electric current is generated leading to the emission of this area. vetoizluchayuschego layer 8, which leads to the emission of the 26th raster line TV.

Further, the information display cycles are repeated for another 24 pasas, after which the ring counter 10 is triggered again, O is fed to the third electrode 14 and the information display cycle of 25 lines starts again from the 52nd electrode 7, and so on. until the end of playback of the 625th row of the TV raster, after which the end of the playback of the frame coming from the output of block 4 to the inputs of horizontal scanner 3 and vertical scanner 5, the blocks 3, 10, 11, 18, 20 forcibly zero and reset. By impulse of the beginning of the second frame the indicated blocks are zeroed again, after which the next reproduction cycle of the next frame starts at the beginning of the reproduction of the first line of the TV raster.

Compared with the prototype, the proposed technical solution allows K 2 vN times to reduce the number of control channels, where N is the number of lines and / or decomposition elements of the TV raster. For example, if in the prototype, 625 separate control channels are required to decompose a TV raster into 625 lines, the proposed device has enough control channels.

In the described embodiment of the device for displaying information, information is reproduced with parallel reading of the lines of the TV raster, which ensures a greater image brightness (the time of display of each

five

five

0

five

This line item is the time it takes to cast a TV raster line (about 64x). To read the TV raster lines in parallel, the number of remote control channels must be equal to the number of elements in the line. Devices for displaying information that do not require high luminance of the reproduced image are also used, and systems of element-by-element information reading as simpler, not requiring memory elements for the duration of horizontal scanning. When such systems are implemented, a group of vertical translucent electrodes is introduced in the number pM between the group of electrodes 14 and the liquid crystal film 15, where M is the number of row decomposition elements, with a reduction in the number of control channels to K 2. As a result, in information-by-element playback systems, the number of control channels of a light-emitting panel can be reduced even more significantly — by a factor of 10–15 compared with known devices for displaying information. For example, in prior art information playback systems, 625 elements with 625 elements per row 1250 of control channels are required at 625 lines of decomposition. In the proposed device, displaying information with element-by-element display requires only

(/ N + ft) 2 (V625 + V62T)

K 2

 100 channels, i.e. 12.8 times less, which is very significant in serial production of terminal devices.

Claims (1)

Apparatus of the Invention A device for displaying information on the screen of a light-emitting sheet containing a receiving unit about The video signal is connected to the information input of the video amplifier, the UZYKHOD of which is connected to the information input of the block, the horizontal razprrtkp, the control input of which is connected to the first output of the synchronization unit, the control input of which is connected to the second output of the reception unit the television signal, the second synchronization unit is connected to the control input of the vertical uncoupler unit, the light-emitting panel consists of successive horizontal electrodes and the optical luminous layer and transparent vertical electrodes connected to the output of the unit horizontal scan ki, characterized by that, in order to simplify and increase the reliability of the device, it contains the first and second ring counters, the first and second switches, and the light emitting panel contains additional horizontal electrodes and a liquid crystal film sequentially located between the light-emitting layer and transparent vertical electrodes, additional horizontal electrodes connected to the outputs of the first switch, the information inputs of which are connected to the output of the first ring counter, clocking the input of which is under The key is connected to the first output of the vertical scanner unit, the second output of which is connected to the clock input of the second ring counter, the first output of which is connected to the setup input of the first ring counter, the second output of the second ring counter is connected to the information input of the second switch, the output of which is connected to horizontal electrodes light emitting panel.