All you need to know about 3D TV (Part 1)

Since Avatar launched, 3D has become the most important direction of film technology. 3D TVs are also coming out in more and more quantities and are more affordable. Do you really understand 3D technology on TV?

Should you buy 3D TV?

TV programs and 3D games are still quite limited.

Before coming to the detailed tutorial on 3D TV products, let's understand the biggest weakness of 3D TV today: Digital content! Although the number of movies shown in 3D has increased significantly after Avatar launched, there is the fact that at this time the number of Blu-ray discs, TV shows and 3D games is still quite good. limit.

More specifically, the number of 3D movies released on Blu-ray now reaches about 200. Compared to the number of thousands of early 2D movies released on Blu-ray, this number is still too small. Corresponding to the number of 3D Blu-ray discs is the amount of digital content in 3D format: If a movie is not released in 3D on Blu-ray, you will hardly find the MP4, MKV version, or MOV has 3D support of this movie.

The number of 3D format movies released on Netflix - the leading premium content provider today, is still quite meager. In Vietnam, the number of 3D format broadcast programs is still almost zero.

If you walk around a lot of electronics stores, you will realize that the number of 3D TVs present is getting more and more.

Not only that, for many people, wearing glasses when watching 3D movies can also make the 3D experience at home more difficult. However, the success of blockbusters such as Avengers and Hobbit shows that 3D cinema will surely become the future of the entertainment industry. Just like high-resolution LCD technology and LED technology, 3D will become an integral part of home entertainment. If you walk around a lot of electronics stores, you will realize that the number of 3D TVs present is getting more and more.

Most importantly, the cost of 3D TV models, though still higher than regular TVs, has also dropped a lot: The 3D feature becomes familiar on high-end TVs, instead of on " super-class" TVs that are out of reach. of almost all previous consumers. Like the frequency of refreshing 120Hz screen and Smart TV (smart TV features: Connecting to the Internet, applications .), the 3D feature has now become a feature used by manufacturers to distinguish between high-end products and low-end / mid-range products.

What does this mean? Even if you don't like 3D, if you want to buy the best TVs on the market, you'll still have to buy a 3D TV - because simply all the best TVs on the market are 3D TVs. . Not only that, you will definitely be looking forward to the future when buying 3D TVs.

The cost of 3D TV models is still higher than regular TV models.

What is "3D TV"?

When we talk about a "3D TV" , we'll talk about "a high-resolution 3D TV". 3D features have been equipped on LED and Plasma TVs since 2010 until now. This feature allows the TV to be able to play content recorded in 3D, as long as you have both 3D glasses and a source device.

Can 3D TVs play "flat" (2D) content?

All 3D TVs can display high quality 2D content without problems. Even in the near future you will probably use 3D TV to view 2D content more than 3D.

In addition, the quality of 2D content display is completely unaffected by the 3D feature. You can safely watch "old" movies like Pride & Prejudice or Shawshank Redemption on 3D TV without worrying about quality.

In fact, according to CNET, if you hate 3D for some reason and are determined not to buy a TV that supports this technology, you will miss the best 2D TV models on the market. Why? Based on CNET's TV product reviews, TV models for the best quality 2D (flat) picture quality are often expensive 3D built-in products (3D TVs). Therefore, even if you never use the 3D feature, you should still consider 3D TV products because their quality of 2D image display is absolutely outstanding.

How does 3D TV work?

When viewers use 3D glasses, 2 images will be combined to form a 3D image.

The 3D content display will simultaneously play two separate frames on the screen, an image for the left eye and an image for the right eye. If you do not use the glasses, these two frames will be confused with each other, creating a very uncomfortable feeling of blur. When viewers use 3D glasses, 2 images will be combined to form a 3D image. In fact, this is not a "real" 3D image (a floating image in space) like in sci-fi films that are just images made up of visual effects of the eyes.

To view 3D content on TV, what do you need?

Although the glasses-free 3D technology products such as Nintendo 3DS and some HTC smartphones have appeared quite a lot, the fact that 3D technology does not need eyeglasses on TV is still far away from us. . Currently, most 3D TV models require a built-in glass, while a few TV models that can display 3D without glasses are always very expensive.

The truth is that 3D technology without eyeglasses on TV is still far away from us.

Not only do you need 3D-enabled TVs and glasses, you also need a 3D transmitter. Your source will usually be a Blu-ray player, a gaming console (a new generation PlayStation or Xbox) or a computer, a decoder head (set-top box), etc. .

You will also need a Blu-ray disc (or digital version) of the movie to be viewed in 3D. Or, you can also participate in services that deliver 3D content like Netflix. Some TVs support "turning" 2D content into 3D, but the effect will not be as good as "original" 3D content, ie the content is filmed in 3D in the first place.

Quality of 3D TV compared to cinema?

The display quality of 3D TV is completely similar to that of movie theaters.

According to CNET, since 2010, 3D TV models released to the market have high resolution, true color reproduction. According to this technology news page, the display quality of 3D TV is completely similar to that of movie theaters. The biggest difference between TV and 3D cinema is the screen size and your viewing distance. In short, if you like to watch 3D in theaters, you might be interested in 3D movies at home.

Can everyone see 3D freely?

Is not! About 5 - 10% of the population suffers from "stereo blindness" (blind image blindness). They can identify the space around them normally, but cannot recognize the depth of the 3D effect on the screen.

For some people, 3D effects can cause fatigue, headaches or other unpleasant symptoms.

For some people, 3D effects may cause fatigue, headache or other unpleasant symptoms, especially when viewed for long periods of time. According to experts that CNET has consulted, the reason for these symptoms is not the 3D technology but the film producers. This means that you may have a headache when watching a movie, but do not have a headache when watching another movie. In general, you may take some time to get used to 3D, and in any case you should pause after a certain period of time, avoiding continuous viewing for a long time.

(continue).