Join Date: Jan 2007
Location: Brisbane, Australia
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In practice with my Sony 65" 4K set the fine pattern of horizontal black lines is not visible at a normal viewing distance, and the result is very good viewing of 3D with passive glasses. It is a complete solution to the distracting black lines effect.
However, as I have pointed out, there is at least one model 4K set which uses a coarsely spaced film patterned retarder. This results in a pattern of horizontal black lines similar to what you see with a 2K passive set. I find such a pattern visible (and distracting) at a normal viewing distance.
The issue that cityinruin was asking about was whether you need to feed the 4K TV a 4K 3D signal for it to give 1080 line vertical resolution or whether a regular 2K 3D Blu-ray is sufficient. The member asked: "Would viewing a standard current 3D HD blu-ray on a Passive 4k screen result in the full 1920x1080 image in each eye rather than the normal 1920x540 per eye of a standard hd set?"
The answer to that question is that a standard current 3D Blu-ray will be displayed at full 1920x1080 per eye on a 4K passive LCD flat panel, but only if the film patterned retarder used for the flat panel set has a sufficiently fine pattern. For example, the 65" Sony 2013 4K set does have such a fine pattern, resulting in 1080 unique lines for the Left image and 1080 unique lines for the Right image. However, the 55" Sony 2013 4K set does not have such a fine pattern.
Last edited by MLXXX; 07-05-2014 at 08:32 PM.