One can argue for a long time what is better: a TV or a projector. However, at the same time, many do not quite understand the essence of these two things or have not tried both devices themselves, but are fixated on only one. In this case, it's time to find out in more detail what are the fundamental differences between these two devices. Then it will be possible to understand whether to use the projector instead of the TV or not.
TV
The TV appeared relatively recently - in 1929, then the American company Western Television acted as the creator, its cost was a little less than $ 100. The image was such that I had to use lenses. Without lenses, the picture was a rectangle the size of a matchbox. The clarity and quality were terrible. In 1934, mass production of televisions was established in Germany. The cost of equipment then was $445 for a diagonal of 30 centimeters.
And after a long time, in 1974, appearedinfrared remote control. In the 1980s, set-top boxes and computers came into vogue, and now the TV also played the role of a monitor. In the 2000s, plasma panels and LCD TVs appeared. CRT models have sunk into oblivion.
Modern TV is a receiver of television signals of image and sound, displays the image on the screen and produces sound through the speakers. Receives signals via antenna or playback device.
Features a built-in tuner for receiving high-frequency signals, converting signals into an image and sound suitable for the viewer.
TV contents:
- power supply;
- radio;
- sound amplifying path with loudspeakers, video amplifier, scanner, deflection system and kinescope.
Types of TVs
By function:
- Smart. Internet access, media player and browser.
- 3D. Do not support the Internet. They have only 3D imaging technology.
- Universal. Symbiosis of Smart models and 3D TVs.
Depending on the received signal:
- Analogue. Responsive to interference, lossy quality.
- Digital. Better quality, transmission is via cable or satellite.
Appearance:
- CRT - televisions with a cathode ray tube. Refers to analog technology. At the moment morally andtechnically outdated. They have a convex shape (but there are also flat ones), which distorts the picture.
- Projection - project the picture onto a matte display. They provide excellent sound quality and a large diagonal margin. RPTV technology consists of a projector, screen, sound system and control panel.
- Flat panel.
- Curved.
- With changing screen.
Flat-panel are divided into three types:
- LCD or HDD. These are LCD-TVs, where the picture consists of millions of pixels, while liquid crystals transmit light from the lamps. Low power consumption, good color reproduction. Service life - from 50 to 100 thousand hours.
- Plasma. A screen of cells that are filled with gases. The current creates a voltage, and the cell begins to glow. More power consumption with an increased diagonal and lower brightness. Service life - 100 thousand hours.
- OLED. The technology originates in 2012. A matrix consisting of diodes transmits black color well, has better brightness and contrast due to self-emitting light by diodes. They are very expensive. The main companies producing such TVs are Samsung and LG. Service life - 10 thousand hours.
Projector
Many are interested in the question: is it possible to use a projector instead of a TV? The first projection device appeared in the 17th and 18th centuries. In the 19th century, the Lumiere brothers created the Kinetoscope. They are especially common in places such as cinemas and at home for viewing filmstrip.
From the name "magic lantern" to multimedia projectors, and in addition, DLP projectors from InFocus and LSD, we can see a clear and colorful picture. It can also be connected to another device to display the image through the projector. A projector is an optical device that displays an image on flat objects.
Types of projectors
- Slide projectors, or slide options - they were used when it was necessary to display a static picture, such as a presentation.
- Bishops - for displaying opaque projects such as books, magazines and photographs, as well as 3D models.
- Odoscopes - they can be used to inspect special transparencies.
- Multimedia projectors - project an image onto a large screen. Have a good picture, suitable for everything.
- Pocket.
- Ultra-portable.
- Portable.
- Stationary.
A projector instead of a TV will suit those who like pocket projectors.
Features and disadvantages of the TV
Good points:
- Habit and trust in technology, ease of use.
- The range is constantly being improved.
- New technologies are being introduced for a clearer broadcast.
- Wide price range, variety of models.
- Stable picture quality in any light, brightness, contrast, color.
- Always ready forwork.
- All in one. As well as smart TV and Internet, a large number of ports for external additional devices.
- Mounting a TV on the wall is quite simple.
Cons:
- Cumbersome. The TV lacks portability. Of course, you can take a small TV, but this is of little use.
- 3D image is found only in some models, and the standard image is only in 2D format.
- The image size depends on the diagonal of the screen and cannot be changed up or down.
- The higher the diagonal - the higher the cost of the model. If you compare the projector and TV if you need a diagonal of more than 2 meters, then the price will be significant.
- Long viewing adversely affects vision by focusing the eyes on the radiation source rather than reflected light.
Features and disadvantages of projectors
Firstly, they differ in image output technology. There are three technologies in total:
- DLP - is the leader in terms of image quality, color reproduction and price. But when buying inexpensive models with a single chip, the picture quality is much worse. Artifacts may appear: at the edges of the "rainbow".
- LCD - uses liquid crystal matrices with a lens system. Reproduce high quality images. The price matches the quality, but falls short of DLP.
- LCoS is a hybrid of DLP and LCD. They are expensive, but at the same time they are able to compete with modern TVs for space in your apartment.
- CRT - very high qualityimages and guarantee of long service life. However, there are disadvantages, including a weak stream of light. Difficult to install, very expensive.
Benefits:
- Choosing the optimal image size without loss of clarity.
- Almost minimal eye strain.
- Sufficient mobility.
- Takes up little space.
- Cheaper.
- Improving technologies that lead to better quality and lower prices.
There are some problems if you want to buy a projector instead of a TV, but don't forget the positives.
Flaws:
- Need to set a certain level of lighting. Otherwise, there will be a sharp decrease in contrast.
- Watching TV in the dark is not for everyone.
- If the video turned out to be of poor quality, then all the shortcomings are visible.
- Need a projection screen or white flat wall, big screen for the projector.
- Additional purchase of speakers and other accessories as needed.
- Replacing lamps.
Setting up the TV
TV installation methods:
- Hang on the wall. Mounting for the TV on the wall is carried out using a bracket, you can position it as you like.
- Place on stand.
- Integrate into wall or decor.
Installing the projector
- Find a flat surface or buy a projection screen.
- Buy more speakers to get sound.
- Place the projector so that the image of youwas fine, but usually you need a few meters, so you have to provide ten meters to the wall.
- Hang the projector from the ceiling. Thus, it will be in a conditionally immovable place, not interfere with the inhabitants of the house and enter the ceiling if a moving structure is equipped.
Conclusion
We compared the projector and TV. The TV is really more familiar and easier to install, and the projector is more suitable for cinephiles who will have to download or buy a Blu-Ray disc, otherwise the quality will not be as chic as it should be. Don't forget the specifications of the projector. Which projector to choose for a home instead of a TV? It must be using DLP technology, look at the image magnification to fit the screen exactly.
