One, shutter type:
Shutter-type principle is the time division method, the 120Hz or 60Hz image is split into two 60Hz or 30Hz, alternately displayed to the left and right eyes to watch.
Shutter glasses are two black and white LCD screens. The left frame of the odd frame becomes transparent and the left eye can see the image. The right frame of the liquid crystal black screen does not allow the right eye to see the image and vice versa.
The shutter-type reduces the refresh rate, but does not degrade the picture quality. Every eye sees a complete 1080p picture.
Even if the original refresh rate is only 60Hz TV or projection, halving the refresh rate to 30Hz does not affect watching 3D movies, because the movie refresh rate is only 24/30Hz. (But if you want to play the game, the original refresh rate must reach 120Hz)
However, because the shutter type always has a black screen, the brightness of the image that your eyes feel will be reduced. Fortunately, at the beginning of the design, the problem of decreased brightness was taken into account. Therefore, after turning on 3D, the brightness will be greatly increased, so the brightness loss is not significant.
Second, polarization:
The polarization type is also called non-flash type. The spectacle lens is not a black and white LCD screen and will not blink alternately. It is just two polarizers, allowing the eyes to see different images.
Polarization does not lose the refresh rate, but the resolution is halved. It splits the 1920x1080 resolution image into two 1920x540 images (upper and lower half-width) by interlaced display. The left eye can see only odd-numbered images. The right eye can only see images of even lines. Or it is split into a 960x1080 image (left and right half width). The left eye can only see the images of the odd columns, and the right eye can only see the images of the even columns.
Since the resolution is reduced by half, the screen cannot avoid the sense of drawing. If the distance is closer, it is easy to see black lines in the image. If you are far from television, the sense of drawing will be less, but the loss of dynamic picture quality is still more obvious.
Because of the existence of "black lines," polarization actually loses its brightness. If you consider that half of the pixels in a picture are black spots, how can the brightness not decrease? Therefore, it is a false proposition that the polarization type does not lose brightness. As long as the 3D brightness is turned on, it will be lost, and the device or software will increase the brightness to compensate.
Third, what kind of good?
When you go to the HD Forum to download 3D movies, a movie will have three formats, half width, half width, and 3D blue light. Through the file size you can know which picture quality is better.
Half-width or half-width 3D movies are specially prepared for polarized devices. Of course, the shutter type can also be viewed. The player can recognize the source and convert the format output. However, it is recommended that the shutter user download 3D Blu-ray to obtain the most perfect. Quality. In turn, the polarization device can also see 3D blue light, but it can't get the 3D Blu-ray quality, and polarization users don't need to download a 45-90GB Blu-ray movie, because the image quality and the already compressed half-width format are not too high. The big difference is that you only need to know if your TV is right or left or up and down, and download the corresponding version.
Shutter type only drawback is that glasses cost is relatively high, a pair of glasses about 200, and polarized glasses also 20 dollars shutter-type display / TV / projection if you want to 120Hz, the cost is also high, but if it is 60Hz The cost of equipment has not increased, and the refresh rate is halved to 30Hz to see no problem with 3D Blu-ray.
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Shutter-type principle is the time division method, the 120Hz or 60Hz image is split into two 60Hz or 30Hz, alternately displayed to the left and right eyes to watch.
Shutter glasses are two black and white LCD screens. The left frame of the odd frame becomes transparent and the left eye can see the image. The right frame of the liquid crystal black screen does not allow the right eye to see the image and vice versa.
The shutter-type reduces the refresh rate, but does not degrade the picture quality. Every eye sees a complete 1080p picture.
Even if the original refresh rate is only 60Hz TV or projection, halving the refresh rate to 30Hz does not affect watching 3D movies, because the movie refresh rate is only 24/30Hz. (But if you want to play the game, the original refresh rate must reach 120Hz)
However, because the shutter type always has a black screen, the brightness of the image that your eyes feel will be reduced. Fortunately, at the beginning of the design, the problem of decreased brightness was taken into account. Therefore, after turning on 3D, the brightness will be greatly increased, so the brightness loss is not significant.
Second, polarization:
The polarization type is also called non-flash type. The spectacle lens is not a black and white LCD screen and will not blink alternately. It is just two polarizers, allowing the eyes to see different images.
Polarization does not lose the refresh rate, but the resolution is halved. It splits the 1920x1080 resolution image into two 1920x540 images (upper and lower half-width) by interlaced display. The left eye can see only odd-numbered images. The right eye can only see images of even lines. Or it is split into a 960x1080 image (left and right half width). The left eye can only see the images of the odd columns, and the right eye can only see the images of the even columns.
Since the resolution is reduced by half, the screen cannot avoid the sense of drawing. If the distance is closer, it is easy to see black lines in the image. If you are far from television, the sense of drawing will be less, but the loss of dynamic picture quality is still more obvious.
Because of the existence of "black lines," polarization actually loses its brightness. If you consider that half of the pixels in a picture are black spots, how can the brightness not decrease? Therefore, it is a false proposition that the polarization type does not lose brightness. As long as the 3D brightness is turned on, it will be lost, and the device or software will increase the brightness to compensate.
Third, what kind of good?
When you go to the HD Forum to download 3D movies, a movie will have three formats, half width, half width, and 3D blue light. Through the file size you can know which picture quality is better.
Half-width or half-width 3D movies are specially prepared for polarized devices. Of course, the shutter type can also be viewed. The player can recognize the source and convert the format output. However, it is recommended that the shutter user download 3D Blu-ray to obtain the most perfect. Quality. In turn, the polarization device can also see 3D blue light, but it can't get the 3D Blu-ray quality, and polarization users don't need to download a 45-90GB Blu-ray movie, because the image quality and the already compressed half-width format are not too high. The big difference is that you only need to know if your TV is right or left or up and down, and download the corresponding version.
Shutter type only drawback is that glasses cost is relatively high, a pair of glasses about 200, and polarized glasses also 20 dollars shutter-type display / TV / projection if you want to 120Hz, the cost is also high, but if it is 60Hz The cost of equipment has not increased, and the refresh rate is halved to 30Hz to see no problem with 3D Blu-ray.
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