Quote:
What plasma do you have? Except for the Fujitsu ALIS models, all the plasmas I know of are strictly progressive, and note of them are 1080-anything. |
I have the Hitachi 42HDT20 (ALIS like the Fujitsu). It is 1024 X 1024. According to a review I saw in TPV, conventional 42-43" plasmas "overdisplay"(term coined by Gary Merson since plasmas don't scan) 1080i material by about 5% in all directions creating a "safe area" to mask image position inconsistencies in HD broadcasts. A 1920x1080 image fed to one of these plasmas is converted to something closer to 1020 pixels vertically and 1800 pixels horizontally. Conventional plasmas scale the remaining 1020 vertical pixels to 768 vertical pixels, or whatever the native pixel count of the display demands.
The 42HDT20 also overdisplays the 1080i image, but it does so in such a way that derives exactly 1024 vertical pixels, which are then displayed with no vertical scaling(and thus no vertical scaling artifacts). This increased vertical resolution and reduction of artifacts translate to an image that is perceptibly sharper.[end of Merson quote; TPV Sept/Oct 2002].
....but I still don't understand why or if the Hitachi is "requesting" a 720p signal from the Sony in DVI mode.....