A perfectly adjusted system will have them map one for one- when the DVD says 0, the TV produces as little light as it can. What they do is to adjust where a signal level maps onto the display device level.Įxplanation: imagine for a moment that there are only 100 different levels of brightness that the TV and the DVD can produce. I was always confused by that until I learned it. Posted by Pinback at 1:05 AM on December 27, 2010īest answer: I'm not sure if this counts as an answer, but it might help get to one: on display devices, contrast is the white level, brightness is the black level. IIRC, on my gf's set I've got it set to "Off" for all sources (except maybe USB?)
On preview: ArkanGJ is right - dynamic contrast, on the C series at least, is fairly subtle - but it's annoyingly noticeable at night and/or with certain content that seems to hover around a critical level of black.
And the LN series are CCFL backlit, so it's not due to local dimming either.įinal thought: This happens on all discs, right? ISTR reading about picture processing issues (pulsing, flicker) with certain Samsung sets and certain DVD players when playing 50Hz->60Hz (i.e.
On the off-chance, you could try turning off all up-converting and processing in the DVD player (letting the TV handle it) and see what happens.Īnd after looking at the manual for the LN40B5230, it's sufficiently different from my gf's LA32C650 that I'll bow out, except to say a) as a test, try turning all the assorted picture- and input-processing settings off in the various menus and sub-menus (the complicated menu structure is a failing of Samsung sets in general!), and b) check out the reviews and forums at UK HDTVTest for ideas - when I was looking earlier this year, they had the best coverage of Samsung sets (their equivalent set would be an LE40B5xx).Īfaik, none of the Samsung sets have an ambient light sensor. Has anybody ever experienced something like this? posted by geodave to Technology (13 answers total) 3 users marked this as a favoriteīest answer: Ah yes - "game" mode is in the setup menu, not the picture menu… I cannot stress enough how much this flickering drives me nuts during a film with lots of dark scenes. There is a setting for "Dynamic Contrast", but setting it to OFF or HIGH have no effect either way. Sometimes if the amount of dark areas in a scene are just right, the damn lighter areas flicker back and forth between brightness levels a few times a second. You can see the brightness of the scene's lighter areas tick down hugely. The problem is, every time there is a scene in a film where most of the screen is dark, the backlight on the TV will dim enormously, making the normally-bright parts of the scene much dimmer. Attached to it is a Toshiba SD7200 upconverting DVD player. I have a 40" LCD TV, the Samsung LN40B530. Next step is to contact Samsung support, I guess. This is sort of a last ditch question, I feel like I've tried every setting there is with no effect.