@SDRebel
When operating in 3D mode, DLP rear projection TVs (RPTVs) are always displaying 1/2 resolution. The DLP device is 960x1080. For normal 2D viewing it is "flashed" at the user at two slightly different angles to get an effect 1920 horizontal resolution. For 3D operation, the first flash is for the left eye, and the second is for the right eye. Both flashes are only 960x1080.
Additionally, many DLP RPTVs do not provide proper scaling from 720p to 1080p for 3D operation. Thus 720p120 3D content must be viewed in a native 1:1 format with true black frame all the way around the image.
The older DLP 3D capable RPTVs require the input signal to be a "checkerboard" format. This format is not widely supported by BluRay players and set top boxes. Also, the "checkerboard" format cannot be easily scaled from 720p to 1080p to allow for full screen display.
In specific applications, DLP RPTVs provide a great value. Unfortunately, the earlier models are not equipped to handle the currently available formats for 3D content.
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