I have been using one of those Nichia LED strips from Monty in my SXGA+ X61 for a day now and I am delighted. It is like having a completely different screen.
It sounds like the first shipped unit has passed an important field test
And with one of those accordion folded platic strips in front of the LEDs I have no pattern at all. Pic: http://i.imgur.com/x0UPWuD.jpg
There is something like a shadow, a 6mm high horizontal stripe, near the bottom edge. That will be caused by the mirror surface in the bracket, but it so faint that it is only visible against white or light grey background. And only detectable if you know what to look for.
Yes, I see that same thing on my main testing screen too. I know how to kill that dark shadow with a little screen surgery, but I'm going to keep looking for ways to kill it without having to disassemble the panel. As you say, it's very faint, and only noticeable once the larger patterning problem is fixed, but it would be nice to fix that too.
Brightness measured with my Spyder 3 (which always gives lower readings than Montys spectrometer)
Right, I'm using a narrower field of view, which always yields higher brightness and contrast numbers. Both should be considered accurate, they're just measuring slightly different things (the Spyder is taking more off-angle light into account, my spectrometer only sees ~ directly ahead).
Did a quick test in a XGA TN Toshiba screen and got 850 nits max brightness. The Toshiba Ultralight screen in the X6x s models should be similar in brightness. Black levels and contrast are of course horrible in those screens.
TNs are crazy-bright. Too bad everything else about them sucks in comparison
BTW, I haven't taken any spectrometer readings of the new strips in one of the TN screens, since it seems like kind of a waste. I would expect them to be much colder, maybe even purplish?
Color temperature is a little cold, but the colors are nicely balanced and the LEDs are really very well suited for AFFS screens. No real need for color corrections.
Yes, color is slightly cold. Positioning can shift it warmer by 400-500K easily. In general, the closer the strip is to the waveguide, and the more carefully it's pointed exactly forward, the brighter and colder the light.
Also, the slightly diffused accordian will warm the temp about 150K. Heavier diffusers will warm it more.
This screen has a slightly warmer color temperature than the one in my X61. Probably the LED strip has a different position in the bracket.
Brightness steps are different with the TLD2 driver - pic: http://i.imgur.com/TEHOxGS.jpg
More steps in the usual brightness range. Anything above 300 nits is rescue mode for using it in sunlight anyway. And that will quickly eat the battery - difference between step 2 and 15 seems to be about 4.5W.
The two brightness scale readings you took would be what I expect if the TLD1 and TLD2 were reversed... Are the tests labeled backwards?
Power consumption range sounds exactly right. A brand new CCFL eats about 4.2-4.5W at max brightness by my measurements but is less efficient at low brightness, so it doesn't swing quite as wide a range. At only 1W the LEDs should still be very bright.
My X60s SXGA+ just told me it will stop working if it does not get a Nichia strip too.
Just what I was afraid of. The chinese strips may be better than a dying CCFL, but none of them can compete with the kits Monty has made.
Yay! I mean _ahem_ how terrible.