Reply to thread

Message

Flickering only exists on CRT TVs where a cathode ray lights the pixels. Because of phospor decay CRTs need to constantly refresh the picture. Liquid crystals stay in their same state until instructed to change their state, they do not fade and therefore no refresh is required.

Plasmas are similar. Even though the technology is different, each pixel is lighted by its own mechanism.

On LCDs if the source is 24Hz, the screen changes the picture every 1/24 of a second. No classical refresh involved. What input signal the TV can handle depends on the video processor inside them. What is more important for an LCD is the reaction time. The time a display needs to change one picture to another. With LCDs having 10ms or more you will see some kind of motion blur on fast moving scenes. Usually displays these days have around 5ms making motion blur a non-issue.

If the video processor of a progressive display (anything that's not a CRT) detects an interlaced source it deinterlaces it. Quality depends on the video processor itself.

In your example it displays 24fps in both cases assuming the video processor can handle 24fps, where for interlaced sources deinterlacing is done first. In addition in both cases the picture is scaled to the display's native resolution. Again the quality depends on the TV's video processor.

<blockquote data-quote="Scythe42" data-source="post: 490816" data-attributes="member: 95833">Flickering only exists on CRT TVs where a cathode ray lights the pixels. Because of phospor decay CRTs need to constantly refresh the picture. Liquid crystals stay in their same state until instructed to change their state, they do not fade and therefore no refresh is required. Plasmas are similar. Even though the technology is different, each pixel is lighted by its own mechanism.On LCDs if the source is 24Hz, the screen changes the picture every 1/24 of a second. No classical refresh involved. What input signal the TV can handle depends on the video processor inside them. What is more important for an LCD is the reaction time. The time a display needs to change one picture to another. With LCDs having 10ms or more you will see some kind of motion blur on fast moving scenes. Usually displays these days have around 5ms making motion blur a non-issue.If the video processor of a progressive display (anything that's not a CRT) detects an interlaced source it deinterlaces it. Quality depends on the video processor itself. In your example it displays 24fps in both cases assuming the video processor can handle 24fps, where for interlaced sources deinterlacing is done first. In addition in both cases the picture is scaled to the display's native resolution. Again the quality depends on the TV's video processor.</blockquote>

[QUOTE="Scythe42, post: 490816, member: 95833"] Flickering only exists on CRT TVs where a cathode ray lights the pixels. Because of phospor decay CRTs need to constantly refresh the picture. Liquid crystals stay in their same state until instructed to change their state, they do not fade and therefore no refresh is required. Plasmas are similar. Even though the technology is different, each pixel is lighted by its own mechanism. On LCDs if the source is 24Hz, the screen changes the picture every 1/24 of a second. No classical refresh involved. What input signal the TV can handle depends on the video processor inside them. What is more important for an LCD is the reaction time. The time a display needs to change one picture to another. With LCDs having 10ms or more you will see some kind of motion blur on fast moving scenes. Usually displays these days have around 5ms making motion blur a non-issue. If the video processor of a progressive display (anything that's not a CRT) detects an interlaced source it deinterlaces it. Quality depends on the video processor itself. In your example it displays 24fps in both cases assuming the video processor can handle 24fps, where for interlaced sources deinterlacing is done first. In addition in both cases the picture is scaled to the display's native resolution. Again the quality depends on the TV's video processor. [/QUOTE]