Stereoscopic 3D mode "Turn"

Up to now, there are at least four commonly used stereoscopic 3D transmission formats, called frame sequential (frames continuous), frame packing (frame encapsulation), side-by-side (side-by), and Checkerboard (chessboard).
Frame sequential (continuous frames), at some level, is the simplest 3D format. Frame sequential signal is a full-solution image sent at a rate of 120 frames per second. The frames alternate sequentially, so the display device receives a left-eye frame, the next right-eye frame, and then a left-eye frame, followed by a right-eye frame, and so on. The simple reason is that the projector itself does not require any decoding of the signal, as long as it can receive a 120Hz signal. Correspondingly, this format requires a lot of bandwidth, because it essentially sends a full-solution signal at a rate of 60 frames per second to the left and right eyes respectively. For a corresponding 2D signal, the bandwidth has doubled. In the field of projectors, frame sequential is an important format. At present, the "3D Ready" low-priced DLP projector can only receive frame sequential 3D. Also, its 3D capability is limited to the maximum 1280x720 resolution. Currently, the only way to send a frame sequential signal is to use a single computer, such as a PC with the Nvidia 3D vision system. Consumer electronics products such as Blu-ray 3D players and set-top boxes cannot output frame sequential 3D. In short, all of these low-priced DLP 3D ready projectors you've seen are not compatible with Blu-ray 3D or TV broadcasts 3d--non-PC.
Frame packing and frame sequential are very close, but they are not the same thing. Frame packing sends the left and right eye images to the projector at the same time, with one of the two images on top of the other, with a smaller interval between them. Essentially, the source sends a huge, twice-fold-height image frame, rather than two smaller image frames. The signal is transmitted at 24Hz or 60Hz. The projector must be able to separate the encapsulated two images and display them sequentially. (Note: If you do not consider the tiny interval between the upper and lower two frames, you can assume that the source is sending a 1920x2160 frame, which is twice times the height of 1920x1080.) Frame packing is the default format for the HDMI 1.4 standard. Any product that is marked as HDMI 1.4 compliant must be able to support this format. It is the standard output format for Blu-ray 3D players, although some of these players have additional options. Frame packing a higher requirement for the projector's processing power, since the projector must be able to separate the encapsulated two frames and display them sequentially.
In the Side-by-side transmission format, which is popular for DirecTV, two frames are compressed into half of their original horizontal solution, and then the composite frame is transmitted simultaneously. For 1080p signals, each frame is a 1920x1080 pixel. This will be the two 960x1080 frames side up. The projection opportunity separates two compressed frames, expands them horizontally back into the original 1920x1080 format, and then displays them sequentially. The Side-by-side has two variants of interlaced and progressive scanning, where the interlaced variant uses less bandwidth, while the progressive scan variant has better image quality. (Note: DirecTV, one of North American satellite service providers)
As you can imagine, this format loses some resolution during compression and subsequent expansions. Essentially, it uses half the resolution for each eye. DirecTV is the only user in the Side-by-side format, but this format should be compatible with the latest 3D TVs and the current DirecTV HD set-top box. Earlier 3D TVs are likely to be unable to display this format, and the current low-priced DLP "3D ready" projector on the market cannot display this format.
Many DLP 3D ready TVs (not projectors) can receive this format, called Checkerboard. In this format, the two images used for the left and right eye are interlaced, that is, each pixel is used for the left or right eye. Take a look at the chess board and visualize the above squares in the imager. The black squares are the pixels used for the left eye, while the red (or white) squares are the pixels used for the right eye. The television separates the two interlaced images and displays them sequentially. The final image has half the degree of solution.

Preliminary conclusion: The above three-dimensional methods are not suitable for the projector.

Stereoscopic 3D mode "Turn"