The monitor is one of the main components of a personal computer. Indeed, without it, it is impossible to obtain the necessary multimedia, digital, graphic and text information from the system unit.
And if the features of work and the slowness of the first computers made it possible to process information using special printing devices, then with the development of system units, this became impossible. To find a way out of the situation, information began to be fed to oscilloscopes. Since a person receives most of the information through the eyes, this technology required its development. And many companies began to develop it, making monitors convenient and comfortable.
Now on the market there are a large number of a wide variety of display models that are strikingly different from their predecessors. They differ in diagonal, resolution and price, allowing the user to choose the best option for themselves.
If the first oscilloscopes were used to verify the correct operation of all the circuits of a personal computer, then in the middle of the 20th century the cathode ray tube was already used to obtain graphic information. After a short time, one of the scientists at the University of England wrote the first game - checkers. Computer "Mark - 1" used this program, playing checkers, and all information was displayed on the screen. Of course, this is not considered a breakthrough in the digital industry, however, it has become the foundation for the future development of monitors.
A breakthrough was the emergence in America of the computer "Whirlwind". The US military began to use the monitor to obtain information on moving air targets. Radars installed in the country displayed the received information about the location of the aircraft in the form of a letter T and a dot. During this period, the oscilloscopes began to lose their relevance, because only their screen was used.
REFERENCE! The military, the very first, realized the importance of the invention, which made it possible to track the movement of targets. And big funds began to be invested in the development of this area of science.
Gradually, thanks to funding for the study and development of technology, computers became multi-user. And already in the mid-70s of the twentieth century, more compact devices came to replace the huge computing machines. They became available not only to the military, but also began to go on public sale.
The scope of their mission expanded. In addition to work, they began to be used for entertainment and games, which began to require good graphic display of information. Nobody wanted to invest even more in the development of this technology, because it was completely new and was just starting its formation. However, a way out of the situation was found.
By that time, there were already devices that could provide a good picture and were widespread. These devices were televisions. They already managed to go a long way of development, got rid of the lens, and their screen became large. Manufacturers did not reinvent the wheel, but simply connected computers to televisions. So there were small monochrome monitors assembled from the same components as TV receivers. Connection was carried out in two ways. In the first case, directly, and the computer acted as a prefix.
In the second, using a coaxial cable, a TV receiver without a tuner was also used here. This solution to the problem suited all users. After all, there was no need to buy anything, and everyone had televisions. However, this tandem did not last long. Since TVs greatly distorted the image. They also had large dimensions and weight. Therefore, the developers had to look for new options. And after some time, manufacturers began to use liquid crystal technology.
IMPORTANT! The technology itself was known since the 19th century, however, was not used. And only the appearance of personal computers gave her a second life and pushed the further development of monitors.
Now widespread LCD monitors. They consist of several layers between which transistors are located. The image is formed using three primary colors - green, blue and red. They have several basic characteristics:
- Response time. Shows at what speed each pixel changes its color to the desired one. The higher the response time, the worse the picture.
- Contrast. The ratio of white and black colors in relation to each other. The higher this value, the more saturated the picture will be;
- Color rendering. It characterizes the completeness of the display of colors that the human eye can perceive.
REFERENCE! Unlike older models, new monitors do not have such a characteristic as a frame scan. The image will be broadcast as long as power is supplied to the device.
Modern monitors are light and compact, and the liquid crystal technology used has made energy consumption minimal. They are used in all areas of life, from home to space.
Not so long ago, a group of scientists from Japan presented at the international exhibition of digital technologies a monitor capable of transmitting odors. This is done using special granules, which evaporate under the influence of temperature and reproduce aroma.
And Sony demonstrated a futuristic monitor, the image from which is shown a few centimeters from its surface. One cannot surprise anyone with the flexible monitors that are used in smartphones and tablets. And recently, scientists announced the development of fully transparent devices.
Modern technology does not stand still. And now, instead of huge monitors with limited characteristics, we use lightweight displays that display high-quality images.
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