Is 1080p a size or a format?
adzarus
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r2e2p4 Posted messages 655 Status Membre -
r2e2p4 Posted messages 655 Status Membre -
Hello,
I wanted to know if the 1080p format corresponds to a size of 1920x1080, which is 2,073,600 pixels
regardless of the screen size in inches. Thus, a TV that measures 120cm diagonally has the same number of pixels as an iPhone 6+? This means larger pixels
Yet when I look at the PPI, a standard TV has about 200, and the iPhone has 400, which is double, while the surface of the TV is much larger. This ratio should be standard and not just double
Or is 1080p simply a format standard and not a pixel count? It seems odd to me that a tablet, a phone, or a gigantic TV has the same number of pixels, which would mean that the TV has huge pixels
I hope I made my question clear. Thank you for a detailed response^^
Configuration: Windows 7 / Firefox 33.0
I wanted to know if the 1080p format corresponds to a size of 1920x1080, which is 2,073,600 pixels
regardless of the screen size in inches. Thus, a TV that measures 120cm diagonally has the same number of pixels as an iPhone 6+? This means larger pixels
Yet when I look at the PPI, a standard TV has about 200, and the iPhone has 400, which is double, while the surface of the TV is much larger. This ratio should be standard and not just double
Or is 1080p simply a format standard and not a pixel count? It seems odd to me that a tablet, a phone, or a gigantic TV has the same number of pixels, which would mean that the TV has huge pixels
I hope I made my question clear. Thank you for a detailed response^^
Configuration: Windows 7 / Firefox 33.0
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2 réponses
Hello,
Well, I will try to explain it in an understandable way:
When you talk about 1920x1080, that is THE DEFINITION (or RESOLUTION, on PC screens) of the video image, which should be 1920 pixels BY 1080 pixels (image points).
This will be the case on a 5.5-inch screen (like the iPhone 6+) or a 48-inch (120 cm) TV, the "FULL" HD.
When you talk about "ppi", it means WHAT IT MEANS: POINT(S) per INCH (the number of points that are contained (that occupy) an inch (2.54 cm), therefore a 1920x1080 on a screen that has only 200 ppi (points per inch) WILL require a larger area to display, while on a screen with 400 ppi it only needs a MUCH smaller area (FOUR times less, TWO squared).
Already with this, at the same pixel size, the screen sizes are different (initially).
And when you "play" with the SIZE of the pixels, larger on the TV screen and finer on smartphones, you get the answer to your question about displaying 1920x1080 on one or the other.
AND finally, through a good magnifying glass, you will "see" better how the "pixels" (it's really a group of three) look on both screens.
I hope to be "a bit clearer". Unless others bring other "POINTS" (details).
See you later
P.S: And don’t "stress yourself out" about the display of the glasses for virtual vision, just think that it’s the same reasoning, the pixels are almost microscopic there.
Well, I will try to explain it in an understandable way:
When you talk about 1920x1080, that is THE DEFINITION (or RESOLUTION, on PC screens) of the video image, which should be 1920 pixels BY 1080 pixels (image points).
This will be the case on a 5.5-inch screen (like the iPhone 6+) or a 48-inch (120 cm) TV, the "FULL" HD.
When you talk about "ppi", it means WHAT IT MEANS: POINT(S) per INCH (the number of points that are contained (that occupy) an inch (2.54 cm), therefore a 1920x1080 on a screen that has only 200 ppi (points per inch) WILL require a larger area to display, while on a screen with 400 ppi it only needs a MUCH smaller area (FOUR times less, TWO squared).
Already with this, at the same pixel size, the screen sizes are different (initially).
And when you "play" with the SIZE of the pixels, larger on the TV screen and finer on smartphones, you get the answer to your question about displaying 1920x1080 on one or the other.
AND finally, through a good magnifying glass, you will "see" better how the "pixels" (it's really a group of three) look on both screens.
I hope to be "a bit clearer". Unless others bring other "POINTS" (details).
See you later
P.S: And don’t "stress yourself out" about the display of the glasses for virtual vision, just think that it’s the same reasoning, the pixels are almost microscopic there.
Hello
Resolution is the number of pixels in the height*width ratio when it comes to video or screen (for example, 1920*1280). Resolution follows standards: 4K, 2K, HD, standard...
For a screen, the pixel size is dependent on the screen size. Thus, we have very small pixels on a smartphone and larger pixels on a TV screen. For a screen with a display of 1920*1280, the number of pixels is 2,457,600 regardless of the screen size.
Definition is the number of pixels in a digital image (photo) in the height*width ratio, for example, 800*400. The definition of an image has no standards.
The file size (also called weight) expresses the number of bytes, with the official measure being the binary prefix: Kio, Mio, Gio...
PPP (Points per inch) defines the resolution of a scanner or printer. This measure is not involved in the resolution of a video or screen.
Resolution is the number of pixels in the height*width ratio when it comes to video or screen (for example, 1920*1280). Resolution follows standards: 4K, 2K, HD, standard...
For a screen, the pixel size is dependent on the screen size. Thus, we have very small pixels on a smartphone and larger pixels on a TV screen. For a screen with a display of 1920*1280, the number of pixels is 2,457,600 regardless of the screen size.
Definition is the number of pixels in a digital image (photo) in the height*width ratio, for example, 800*400. The definition of an image has no standards.
The file size (also called weight) expresses the number of bytes, with the official measure being the binary prefix: Kio, Mio, Gio...
PPP (Points per inch) defines the resolution of a scanner or printer. This measure is not involved in the resolution of a video or screen.
Hello, it's Sunday, it's raining, it's the time to nitpick on the subject
I'm nitpicking on the term ppi, not to be confused with ppp, it's for the video "pixels per inch" example
a 20-inch HD screen will have 120 ppi while a 30-inch screen only has 80 ppi, so with enlarged pixels (not bigger), like with a magnifying glass to fill the panel.
I'm nitpicking on the term ppi, not to be confused with ppp, it's for the video "pixels per inch" example
a 20-inch HD screen will have 120 ppi while a 30-inch screen only has 80 ppi, so with enlarged pixels (not bigger), like with a magnifying glass to fill the panel.
Good evening, dude,
PPP and PPI mean the same thing, but to facilitate understanding, it is customary to say:
PPP (in French: points per inch) to define the resolution of a scanner (another term can be used: DPI)
[url=http://www.noelshack.com/2014-50-1418577671-ppp.jpg][img]http://image.noelshack.com/minis/2014/50/1418577671-ppp.png[/img][/url]
PPI (in English: pixels per inch) to determine the number of pixels per inch of a screen.
In conclusion, neither is wrong. I prefer to use the commonly accepted formulation.
PPP and PPI mean the same thing, but to facilitate understanding, it is customary to say:
PPP (in French: points per inch) to define the resolution of a scanner (another term can be used: DPI)
[url=http://www.noelshack.com/2014-50-1418577671-ppp.jpg][img]http://image.noelshack.com/minis/2014/50/1418577671-ppp.png[/img][/url]
PPI (in English: pixels per inch) to determine the number of pixels per inch of a screen.
In conclusion, neither is wrong. I prefer to use the commonly accepted formulation.
Soldier Glandu, please reread what I wrote.
1) You say we should not confuse PPP and PPI, but they are the same: PPP is in French, PPI is in English. Usage dictates that we use the term PPP for the resolution of a scanner or printer, not for a screen, and PPI for a screen but not for a scanner or printer, which is the opposite of what you stated.
2) Since usage is not an official character, I cannot consider your intervention as a real confusion.
Have a good evening.
1) You say we should not confuse PPP and PPI, but they are the same: PPP is in French, PPI is in English. Usage dictates that we use the term PPP for the resolution of a scanner or printer, not for a screen, and PPI for a screen but not for a scanner or printer, which is the opposite of what you stated.
2) Since usage is not an official character, I cannot consider your intervention as a real confusion.
Have a good evening.