AVS Special Member
Join Date: Oct 1999
Location: Durham, NC, USA
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How would it be possible for the Pearl (or any display) to automatically and seamlessly remove 2-3 judder?
Let's consider a hypothetical example. Let's suppose you are watching a movie (shot at 24 Hz) on a TV channel (broadcasting at 60Hz). Hypothetically, your display is not showing 2-3 judder at 60 Hz refresh, but rather showing 4-4 judder at 96 Hz refresh. Then, all of a sudden, the TV channel shows a weather ticker along the bottom that crawls horizontally at 60Hz. What does the display do at this point? Does the display stay at 96Hz refresh, so the movie still has 4-4 judder, but the ticker is not smooth? Or does the display switch to 60Hz refresh, so that the ticker is smooth, but the movie reverts to having 2-3 judder? Does the switch to 60 Hz happen automatically and seamlessly, with no noticeable glitches from one frame to the next? When the ticker eventually goes away, does it switch back to 96 Hz? Or perhaps, instead of 96 Hz, the display always refreshes at 120 Hz (which is a multiple of both 24 Hz and 60 Hz), so the display would not have to switch.
In my experience, the Pearl does none of the above. When I feed it a 60 Hz signal, it refreshes at 60Hz, even when the signal has 2-3 pulldown.