Thanks for the reply Reiner. That makes sense. However, with regards to this point:
Quote:
Originally posted by Reiner
Technically this is of course not the best way, thus a TV which does not allow adjustements for RGB should be purer |
Zacabeb made the following post on another thread a while ago:
Quote:
Originally posted by Zacabeb on RGB question.
You should be able to adjust contrast and brightness properly, if not it is a poorly designed set.
In some sets it is not possible to adjust, simply because they use cheap low-end components and add extra functionality through tricks. One trick is to send SCART RGB through the OSD/Teletext RGB path. This path often bypasses brightness and contrast adjustment, as the OSD contrast is supposed to be adjusted by the OSD controller, and the brightness is not cared about at all.
You can tell if the TV was designed to use this trick by checking the on-screen menus - if the text merges with the picture instead of being in front of it, the TV uses the OSD path for RGB. You can also tell by switching to Teletext when in RGB mode (if possible) - if the actual picture still shows through the empty Teletext screen or flickers across it, the trick is used.
Saturation is usually not adjustable on 50Hz sets, but might be on 100Hz sets. This is because of the different internal processing. On the other hand, 100Hz sets do not have as high color resolution through RGB as 50Hz sets, as 100Hz processing is almost always designed to cut corners and reduce colors to ultra-low resolution to minimize memory costs. With a 50Hz set, you can get much sharper colors through RGB. |
With this in mind, it seems to me that a TV that does not allow the RGB signal to be adjusted is using a technically inferior and 'cheaper' solution, not necessarily a "purer" one? Perhaps this is why I have always found non-RGB adjustable TVs to be a pain in the arse because the resultant picture has always appeared dull and washed out. To me, a calibrated picture on a TV with adjustable RGB has always been preferable to one on a TV with non-adjustable RGB (from the TVs I have seen).
It seems proper RGB is a hard thing to come by indeed in TVs.
