1080/60i (what does this mean?)

[eduardobonifaz]

Hello everyone, and happy new year, this is my first post, Im new to Blu ray, and Ive noticed when I push de display button on my BD player it appears on the screen, "1080/60i", I guess 1080 means the HD signal sento to the TV but can anybody explain me what does the number 60i means?
thanks in advance

[DrinkMore]

Originally Posted by eduardobonifaz

Hello everyone, and happy new year, this is my first post, Im new to Blu ray, and Ive noticed when I push de display button on my BD player it appears on the screen, "1080/60i", I guess 1080 means the HD signal sento to the TV but can anybody explain me what does the number 60i means?
thanks in advance

Depends on the tv. 60 means 60hz.

Do you ahve a Plasma or LCD? Perhaps another type of television?

[NJ_RAMS_FAN]

Originally Posted by eduardobonifaz

Hello everyone, and happy new year, this is my first post, Im new to Blu ray, and Ive noticed when I push de display button on my BD player it appears on the screen, "1080/60i", I guess 1080 means the HD signal sento to the TV but can anybody explain me what does the number 60i means?
thanks in advance

well, i think the 60i means its refresh at 60hz. and the i is for 1080i. I'm guessing your tv puts the i at the end.. usually it would be like 1920 X 1080i @ 60hz. correct me if im wrong?

[eduardobonifaz]

I forgot to mention my setup, I have a sony 51" widescreen projection TV (sorry, no money to upgrade now), that supports 1080i, and a sony BD 350, the connections made by video component cables (monster cable).
So I now understand 60 means 60hertz, but can anybody say whats the meaning of this? thanks a lot

[NJ_RAMS_FAN]

Originally Posted by eduardobonifaz

I forgot to mention my setup, I have a sony 51" widescreen projection TV (sorry, no money to upgrade now), that supports 1080i, and a sony BD 350, the connections made by video component cables (monster cable).
So I now understand 60 means 60hertz, but can anybody say whats the meaning of this? thanks a lot

60hz is how fast your tv refreshes the image. There's a sticky around here to explain it better..

[narsibvl]

Originally Posted by eduardobonifaz

Hello everyone, and happy new year, this is my first post, Im new to Blu ray, and Ive noticed when I push de display button on my BD player it appears on the screen, "1080/60i", I guess 1080 means the HD signal sento to the TV but can anybody explain me what does the number 60i means?
thanks in advance

Same as mine..all it means is your tv does 1080 interlaced at 60Hz.

[aramis109]

Originally Posted by melsbluespecv

60hz is how fast your tv refreshes the image. There's a sticky around here to explain it better..

Means it refreshes at 60x a second, or 60fps for you gaming junkies out there.

[Whyrendog]

Originally Posted by eduardobonifaz

Hello everyone, and happy new year, this is my first post, Im new to Blu ray, and Ive noticed when I push de display button on my BD player it appears on the screen, "1080/60i", I guess 1080 means the HD signal sento to the TV but can anybody explain me what does the number 60i means?
thanks in advance

Thought I would tell you this. I am working with Adobe Premier and the specifications for this show that this is the NON wide screen resolution similar to the way you have 4:3 and 16:9. To be specific, the setting that it shows for this is 1440x1080 whereas the specs for the setting for 1080i without the 60i next to it shows 1920x1080. So I would believe this has nothing to do with frame rate, well actually it shows roughly 30fps for both. Refresh is decided by your display, not the Blu Ray player or movie. Most movies are actually 24fps so I could be accurate in saying it is simply the way it would interlace to create resolutions. Refresh would always be a measurement in Hz, and fps is just called fps.

Another quick glance also shows this "1080i (60i) - use for video shot with hd camcorders that use 1440x1080" and the regular 1080 says the same thing but shows camcorders that shoot HD 1920x1080. And yes, movies are shot with camcorders these days. I just shot a mock movie trailer in college on a hd camcorder that has been used for some hollywood movies.

One more thing I noticed is that the "pixel aspect ratio" of the 1080i (60i) shows "Anamorphic 1.33" and the 1080i shows "square pixels 1.0" and that they both do show 16:9 but I think that means that it needs to add the black to make it centered on widescreen or something.

I will go ahead and render both and tell you what I see in the end.

[Anthony P]

1080 means that 1080x1920 pixels per frame are sent to the TV. To understand the rest we need to look at history a bit. Back when TVs looked like the display was something called a cathode ray tube. A CRT uses an electron gun which shoots electrons when the electrons hit the phosphorus on the tube the phosphorus gets excited and glows, there is one "beam" of electrons moving left to right one line at a time and then top to bottom. Once the phosphorus is excited it glows for a bit of time but fades over time. What was noticed early on was that a new line was much brighter then the old line which had almost faded away. So someone came up with interlaced (the i in your 1080i60) instead of going through all the lines sequentially (1,2,3,4….) they do two passes, in the first pass the odd lines are affected and then the even ones (i.e. 1,3,5....2,4,6....1,3,5...2,4,6) so with interlaced you get two fields for each frame (the odd and the even field that make the whole picture-frame). If we look at more modern displays, Plasma or LCD or older ones (like film projectors) then they create the whole pic at the same time and that is called progressive (p)

The last number changes depending if we are talking p or i, if it is progressive like 1080p24 (which you might have seen on packages of BDs), it means that there are 24 frames a second of 1080x1920 pixels, if like yours it is 1080i60 then that means there are 60 fields a second but it takes two fields for one frame so in essence each field is 540x1920 (i.e. 1/2 the pic) and you need both to make the pic.


Now if you have a real old WS which is CRT based then 1080i60 is most likely your best bet because the display is interlaced as well. Now this is where it gets more complicated, if you have a progressive display (is it a DLP or LCD or LCoS) then you should find out the native resolution. With Component you can't pass 1080p24, but if the native resolution is around 720 lines then opting for 720p24 could be better depending on what device has the better scaler.