Display through display options. Evolutionary interest. It is used to communicate with each other display technologies. From the workplace and home television. Computer and monitor. Smaller screen phones. What other monitors are. But only those designed to monitor different objectives, both used the technique only.

1080p, 1080i and 720p

Section B: Interlaced vs. Progressive.

Before sensible Interlace and progressive, you should understand about the frame rate before we started together with fantastic figures Let. That number is 60.

Some of you may know enough to do. That electronic devices (TV), most working at 60 Hz Mart - Science of radio frequency alternating current is 60 Hz or 60 cycles per second (in addition to the translation: The frequency with which the author discusses. The frequency of the USA. And other countries that use light 110v, 60Hz. - Thailand using electric 220v, 50Hz).

For this reason, NTSC TV image on the screen is updated with a frequency 60 times per second, enough is your TV will display 60 images at 1 second.

Suppose you have this image signal. An image consists of horizontal lines if the signal line 4 is a Progressive signal, it will be drawing on TV this.

1: ---------------------------------------.
2: ---------------------------------------.
3: ---------------------------------------.
4: ---------------------------------------.

Each line is a line drawing on the display order of lines 1 through 4 and lines are painted 60 times per 1 sec, which each picture, we called the "frame (frame)".

However, if the signal is an Interlace image above it will be drawing this:.

1: ---------------------------------------.
3: ---------------------------------------.

Followed by.

2: ---------------------------------------.
4: ---------------------------------------.

Where 1 in every 60 of a second (1/60th second) of first drawing will start lining up at 1 to 3 after the first line that is 2 to 4 by this process will take time to position 30. (1/30th second) after 1 to 3 lines will be painted again. And next is lined with a 2 and 4 re-operations such as this is ever enough, rather than drawing any line between the sort ever. Similar signal to your TV progressive draw. "Line space line" instead - drawing 2 times the combination has become a half picture 1 picture by picture, we called the "field", which when brought to field 2 field combinations will have a complete picture. We are called frame (more by translation: 1 frame consists of 2 fields in 1 second, so a NTSC TV will portray all the building-block of 30 frames or 60 fields).

After understanding the principles of Interlace and Progressive, we come to talk about signs ATSC (HDTV signal standards of the United States. http://en.wikipedia.org/wiki/Atsc - translator), which is defined as 18 standard together. But I will cite examples of specific core standards only.

     * 720p is a standard line consists of 720 signal lines based on frame rate at 60 frames per second, which means drawing a line 720 (respectively) in all positions 1/60th of a second.
     * 1080i is a standard feature of signal lines based on line 1080 FIELD rate at 60 fields per second - 1 frame consists of 2 fields in 1 second, so it can display 30 frames (based on principles of interlacing - every field will take. 1/60th second half of the drawings and field number 2 fields will be painted as 1/30th of a second and 2 fields that occur will occur "as" into a single image (1 frame) with. our own eyes.
     * 1080p is the same - a standard line signal consists of 1080 lines is based on frame rate at 60 frames per second, which means drawing a line in 1080 (respectively) in all positions 1/60th of a second.

With the standard 3 to standard as I said many people may see that 1 / 60 second is very fast ... Faster than that perceptible to the human eye. Although each field may consist of images, but only half of field, they will be "integrated" into a picture with our eyes and brain. So there is no difference between interlace to progressive?

Listed above will be required if you only view the slides. But the problem is. Most likely we would not still be some other TV viewing. With that image on a TV. "Animation" sure enough to make a display to interlace problems ....

Such problems are called "motion artifacting" - try to see that image. Suppose we form a square shaped box. That are mobile from left to right side of the screen. I will have off the image at position 1 to 1/30th of a second show to see.

In fact, your TV displays the resolution be much together?

     * If your TV within the process. And display 720 lines (or called native resolution - the translation) it would not be a good choice that you will enter the 1080i signal to your TV. It work? Your TV will display 720 lines, you will be living and motion artifacting up a bonus too.
     * If your TV can display a 1080 line, but is only 1080i signals up to this match, you will need to decide that. The distance you are viewing. (The charts above) you will see the difference between the 720 lines or 1080 lines? If you answered that you see the difference. They must come together to consider that. You will agree to exchange details of the images come up with little or no motion artifacting.
     * If your TV is 1080p on a 1080p signal then entered into at all without thinking anything more.
     * Now if you have not and are HDTV buying decisions that will buy a 720p or 1080p TV, this would have to decide that. Given the size of screen you buy with viewing distance you intend to watch it. (The charts above) was worth it or not.
     * Top end if you decide to buy a 1080p screen, check to make sure that the monitor can be receiver 1080p true 1080p TV, because many models available in the market at this time can only accept 1080i signal and then some. signal to upscale to 1080p again that the principles and good listening. But do not forget about motion artifacting Therefore, you will not benefit from a 1080p display ads that much laundry.