??? where's the LCD thread?

[The PIT]

I've got an 181T and the slow response certainly shows. Time quoted 25ms I reckon thats 25 rise plus 25 fall.

[VJ]

The 1280x1024 resolution has got me wondering...
This resolution is not 4:3, but 5:4. In regular CRTs, this results in "non-square" pixels; but what do they do in LCDs ? Are the dimensions 4:3 (and thus the pixels non-square) or are the dimensions 5:3 with square pixels) ?
(for computer graphics, this doesn't matter that much, but for photo-editing it becomes more important)

Jörg

[az]

The dimensions are 5:4, thus 1280x1024 looks fine, but interpolated resolutions look a little stretched (nothing too bad though, since you'd only play games at those resolutions, all your work and picture viewng and such would be done with square pixels ).

Cochese: No manufacturer states higher numbers than the panel reaches in reality, but some people are more sensitive to ghosting than others

AZ

[VJ]

Thanks for clearing it up !
(interpolated resolutions are IMO less important, as the quality is already less)

Jörg

[az]

NP

Note that the "cheaper" screens we are talking about here ALWAYS interpolate to full-screen for lower resolutions. They have no option to display lower resolutions in a smaller, 1:1 window.

AZ

[Paulr]

Another thing that has to be mentioned about response rate here.
The 16ms claimed by NEC would be for a pixel going White to Black and back or vice-versa.
Considering the fact that you would only be very rarely going from extreme to extreme the overall response rate and "general speed" will be faster.

[az]

Actually, no. Going from an 80% black pixel to a 20% black pixel is slower than from full black to full white, AFAIK. Don't ask me why, though

But debating about these numbers is kind of moot, anyway. Important is that we don't see ghosting.

AZ

[cochese]

whoops that 15ms thing was a typo... haha i wish it were 15ms. i meant to type 25ms

[Wombat]

Originally posted by az
Actually, no. Going from an 80% black pixel to a 20% black pixel is slower than from full black to full white, AFAIK. Don't ask me why, though

AZ

The speed of the color change is probably proportional to the voltage delta. If you're going from rail to rail, you can slam the voltage for a bit, rather than try to hit a precise midpoint.

[az]

Yep, it was something like that

AZ