Thread: Contrast Ratio
11-04-2007 04:23 AM #1Member
- Join Date
- Aug 2007
Okay I was told the Contrast Ratio is when a TV's pixels can catch up with the movement of the pixels. Naturally they flicker on and off each time a different color is displayed during the movement of somethings during a movie or something watched, right? I heard the more the better. My LG has a Dynamic Contrast Ratio of 10000:1. But the Sony XBR4 which is basically a superior and newer TV to mine has only a Contrast Ratio of 2000:1. Let me know why its like that and explain to me what exactly Contrast ratio is and how well it pertains to the world and viewing potential of HD viewings. Thank you my friends.Well, hate to say it, but Blu-Ray won. Still got love for HD-DVD though. They put up a good fight.
Blu-Ray Movies: 191
TV: LG 42' 1080p Flat Panel LCD HDTV
Blu-Ray Player: Playstation 3
11-04-2007 04:41 AM #2
Contrast Ratio is the difference between the whitest white and the darkest black colors the display can show. The greater the contrast, the better the screen and the subtlety of colors it can display.
There might be other things that make the sony a better tv but it probably isn't contrast ratio.
11-04-2007 11:09 AM #3Hitachi 55" LCD projection TV
Energy C-500(fronts),Energy C-C100(center), Energy C-R100(rears), Energy S10.3 10" sub
Shaw HD PVR Cable
Xbox 360 Premium (non-HDMI)
11-04-2007 12:44 PM #4
You have been corrected on this, but yes, your understanding of contrast is incorrect.
At the moment, there are three typical descriptions of contrast ratio (whitest white vs. darkest dark):
1. Dynamic: This is a fake number that is achievable only through the use of an iris or contrast control system that can open/close to control light output. It decreases black scenese to appear darker, while increasing bright scenes to appear brighter - but it can't handle both at once.
2. Contrast ratio: This is typically similar to the one listed above, but it doesn't use an artificial means, like an iris, to increase whites and decrease blacks. Instead this is the full range that the set can display, but it ONLY is measured using a 100% white field or a 100% black field. It doesn't mix white and black up, so once again, the number is not a realistic representation of what you will typically see on screen.
3. Contrast Ratio (ANSI) - ANSI, or the American National Standards Institute, has a contrast ratio measuring system that more accurately reflects what you will find under normal viewing conditions. This ratio is far more accurate at determining what your display will actually deliver to you when watching TV - especially seeing as how the first two numbers are very likely ones that you will NEVER see when watching TV.
Contrast ratio itself is just one of many factors that are very important to determining what you want from a TV. You want good video processing, good shadow detail, no white/black crushing, no false contouring, accurate colors, fast response time and a resoluiton that works for your seating distance.