What is the basic structure of a seven segment display, this lecture gives you an overview of a seven
segment structure and how it works.
A seven segment display consists of eight ladies, seven of them are used to show a pattern of a decimal
number.
These ladies are named from a Tukey.
The last lady shows a decimal point denoted by deep.
There are two different types of configuration for a seven segment display, including common A. and
common catalogue configurations.
In the configuration of the common A. all anodes of ladies are connected to the high voltage level or
lodging value one, therefore, to turn on a segment, the logic value zero should drive the corresponding
cathode of the corresponding ality in the configuration of the common cathode.
All the early decathletes are connected to low voltage level or logevall value zero.
Therefore, to turn on a segment the logic value one should derive the corresponding anode of the corresponding.
As an example, let's consider coming its own segment, if you want to show the number three, then
the Bindura value of one zero one one zero zero zero zero should be applied to the lady's cathodes.
The switch control biologic value usually controls the common connection in a seven segment.
This technique helps us to have more control on a certain segment and turn off that regardless of the
code on the data lines in this figure, a transistor which controls a common and sound segment.
Therefore, to turn on the cell and segment, the switch should be driven by the logic value zero and
proper data should be applied to the cattle's.
What are the codes for different decimal digits in the next lecture?
I will answer this question.
These are the takeaway messages to control seven segment displays, a controller should provide two
groups of signals control signals and data signals, whereas the control signals enable seven segments
or turn them on.
The data signals provide the proper code for the number to be displayed on the Sun segments.
Now, the police for this lecture.
Find the logic value of the control and data signals to show the number four on this common A. seven
segment.