Is shutter type 3D technology better or left right technology? That way mainstream. Detailed. Thank

The principle of 3D imaging is to use two cameras to simulate the principle of observing things with human eyes, shoot two pictures with slightly different angles, and output them to the two eyes of the person respectively, it can be said that 3D shooting is not difficult, and there is no difference in technology, the difficulty is how to only make people's two eyes can only ** to the formulated picture. Active shutter 3D technology, also known as time division shading technology or liquid crystal time-sharing technology, it is mainly achieved by liquid crystal eyes, its spectacle lens is essentially two LCD screens that can be controlled on and off respectively, the liquid crystal layer in the eyes has two states, black and white, usually displayed as white that is, transparent state, after powering on, it will turn black. A signal transmitter enables precise synchronization between the 3D eye and the screen.

On the display screen, the left and right eye screens will be alternated, and when the left screen is left, the left eye is turned on, the right eye is closed, and the viewer's left eye sees the picture that needs to be seen by the left eye, and the right eye can't see anything. In the right eye picture, the right eye looks at the right picture, and the left eye can not see the picture, so that the left and right eyes can see the left and right pictures respectively, so as to achieve a 3D stereoscopic effect. This process alternates at least 120 times per second for the human eye to enjoy a coherent and non-flickering 3D picture, so active 3D display technology requires the screen to have a refresh rate of at least 120Hz.

Active vs. shutter is one thing. Different names.

Hello friends, the active type is the shutter type, also known as the hour and minute type, the principle is to let the left and right lenses of the glasses actively open and close, so that the left and right eyes can not see the image at the same angle, and produce a three-dimensional sense in the brain.

The corresponding to the active type is the polarized type, also known as the polarized light type, the polarized type, and the non-flickering type. This 3D technology is mature and less costly.

Polarized 3D gives people the feeling that it is not flashing, and it is relatively light, it is more comfortable to wear, no power supply, no frequent charging, there is no feeling of eye pain after wearing it for a long time, and the effect is better from afar. The cost is very cheap. The 3D effect is not as strong as shutter 3D glasses, and if you are too close to the TV, you will see a jagged feeling, and if you look up and down the TV, the 3D effect will be reduced.

Wearing shutter-style 3D glasses, it feels a little heavy. When you are facing the screen, the image has a strong sense of 3D and is very clear. When the human eye is slanted at the screen, there is still a 3D effect.

However, when I tilted my head, I found that the screen gradually became very dark with the random tilt angle, and there was no 3D effect. Pitch angle**, ghosting occurs. The glasses themselves are slightly heavy, and the most unpleasant thing is that wearing shutter glasses, I feel that the picture has been flickering slightly, which makes the glasses feel particularly tired.

First of all, polarized glasses feel very lightweight to wear. After tilting the head, the picture remains bright and dark, and there is still a 3D effect. The key thing is that there is no flickering, and after a long time, there is no visual fatigue.

Slightly lacking, at close range**, 3D imaging has ghosting, and it is recommended to be at a slightly longer distance**, and the imaging fidelity is slightly inferior to that of the shutter type. After reading the previous objective test and user experience, I believe everyone has an understanding of the advantages and disadvantages of the two 3D technologies, but how should we choose when buying? Active shutter type:

I don't care about the flickering sensation, and users who have high requirements for 3D image quality. Polarized light: Users who do not have high requirements for 3D image quality and care about the sense of flicker.

Whether you want to look at the picture quality or a comfortable ** experience, you have to choose according to your personal needs.

There are only two types of 3D TVs: shutter and polarized. The shutter type divides the 3D double screen into 120 times per second, and each screen is displayed alternately 60 times to form 3D, but because of the fast speed, the eyes do not feel the flicker when watching TV.

The polarized type is to divide a physical screen, 1080 vertical pixels into two parts in a staggered form, half for the left eye to see, half for the right eye to see.

In terms of 3D effect, the sharpness of polarized light is reduced by half because each eye can only see half of the picture in polarized 3D. And its display method is also more limited to the angle, and the 3D effect is also discounted, so the effect is not as good as the shutter type. The difference is still relatively large.

In terms of 2D effect, there is no difference in theory, because they only show one screen. However, due to the problem of the polarizing film that realizes 3D, there may be aliasing in the details of the 2D picture. Some affect**.

This difference is also not as good as shutter or ordinary TV, but the difference is not too big.

1. After wearing glasses, the brightness decreases a lot;

The opening and closing frequency of d glasses is different from that of fluorescent lamps and other light-emitting devices, and the comfort is low in bright rooms**;

The opening and closing of the shutter of the glasses is not completely synchronized with the left and right images, and crosstalk ghosting will occur.

4. The viewing angle of the shutter 3D LCD TV is small;

5. The price of shutter 3D glasses is basically about 100 yuan, which is relatively expensive, and it needs to be installed or charged.

Active Shutter 3D technology is used with active shutter 3D glasses. This 3D technology is the most widely used in TVs and projectors, with relatively more resources and excellent image effects, which is respected and adopted by many manufacturers, but its matching 3D glasses** are higher.