SU1550574A1 - Device for display of information - Google Patents

Abstract

The invention relates to information and computing technology. The aim of the invention is to improve the quality of the display by making it possible to adjust the luminance brightness. A device for displaying information containing memory blocks, keys of the first group connected to horizontal buses of an electroluminescent display panel, whose vertical buses are connected to vertical panels of the panel, introduced second, third and fourth decoders, second and third counters, multiplexers, comparison units, And elements, key and switches with corresponding connections. 1 il.

Description

The invention relates to information technology and can be used in the design of devices for displaying information.

The aim of the invention is to improve the quality of the display by making it possible to adjust the brightness of the luminescence.

The drawing shows a block diagram of the device.

The device contains electroluminescent and nonrescent indicator panel 1, the first 2 and second 3 groups of keys, the first counter 4, memory blocks 5, multiplexers 6, comparison blocks 7, switches 8, second 9 and fourth 10 decoders, second 11 and third 12 counters , key 13, first 14 and third 15 decoders, elements AND 16, device information input 17, device address inputs 18, device control inputs 19, device control output 20.

The device works as follows.

The device can operate in the following modes: recording information in memory blocks; image formation from data stored in memory blocks; imaging in light pen mode.

The information recorded in the memory blocks is fed to the input of the device as a sequence of pulses. For recording, it is necessary to submit the corresponding signals to the inputs of the second decoder 9, which generates the address signals, and the fourth decoder 10, which generates the control signals.

The image formation according to the data stored in the cells of the memory block 5 is performed by parallel illumination of the elements of the selected

cl

ate

cl

Ј

column and sequential column scan. The information read from the memory units 5, through multiplexers 6, is fed to the inputs of the comparison units 7, where the formation of pulses takes place, the duration of which corresponds to the required luminance of the cells. These blocks compare (calculate the difference) the luminance code with the current state of the second counter 11 "If the comparison result is positive, the pulses through the elements 16 and the switches 8 are fed to the inputs of the keys 2 of the first group associated with the horizontal tires of the panel by highlighting the selected column item. Next, the second column is connected and the corresponding information is selected from memory blocks 5 and.

Key 13 is provided to control the signal path. Information from the selected key 2 of the first group is fed through the key 13 1 to the output of the device.

Claims (1)

Invention Formula A device for displaying information containing memory blocks whose information inputs are information inputs of the device, keys of the first group, the first outputs of which are connected to horizontal buses of an electroluminescent display panel, vertical buses of which are connected to the outputs of keys of the second group, whose inputs are connected to the output of the first the decoder, the input of which is connected to the output of the first counter, characterized by THAT, FOR THE PURPOSE display quality by providing the ability to adjust the brightness of the luminescence, the device introduces second, third, and fourth decoders, second and third counters, multiplexers, comparison units, AND elements, a key, and switches whose outputs are connected to the inputs of the keys of the first group, the second outputs of which are connected with the information input of the key, the output of which is the information output of the device; the address inputs of the memory blocks are connected to the outputs of the second decoder, whose inputs are the address inputs of the device The outputs of the memory blocks are connected to informational — the inputs of multiplexers, the control inputs of which are connected to the output of the first decoder, the input of which is connected to the output of the first counter, the outputs of the multiplexers connected to the first information inputs of the comparison blocks, the second information inputs of which are connected to the output of the second counter , the outputs of the comparison units are connected to the first inputs of the AND elements, the outputs of which are connected to the information inputs of the switches, the first control inputs of which are connected to the third decoder, the input of which is connected to the output of the third counter, the output of the second counter is connected to the counting input of the first counter, the output of which is connected to the counting input of the third counter, the control inputs of the second decoder, memory, elements of switches, switches, key, second the counter and the reset inputs of the counters are connected to the outputs of the fourth decoder, the inputs of which are the control inputs of the device. 12 P rf