Is this normal for Samsung TFTs?

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yak · #1 Post by **yak** » Tue Sep 23, 2008 8:49 am

Hi,

I have a T60 with a XGA LCD (Samsung LTN141XA-L01).

The thing is that is seems this is not a 32-bit LCD because I can see the dithering on smooth color fades.

I can also see some small colorful dots around ClearType fonts. The edges of such fonts usualy have some red traces on the sides if they are in black.

I had a T41 before (not sure what LCD, XGA thou) and I don't remember having any of these problems.

Is this normal?

The strange thing is that ThinkWiki lists this LCD as a T40/T41/R5x one (not a T60 one). Would this mean that it has been switched by the previous owner?

As I will be upgrading to an SXGA+ LCD soon, should I avoid some models to ensure that I get a panel with full 32 bit colors support?

TIA,
yak

yak · #2 Post by **yak** » Tue Sep 23, 2008 3:23 pm

No T60 owners with Samsung XGA here?

basketb · #3 Post by **basketb** » Tue Sep 23, 2008 5:39 pm

The strange thing is that ThinkWiki lists this LCD as a T40/T41/R5x one (not a T60 one). Would this mean that it has been switched by the previous owner?

Could be. But not necessarily. Lenovo is known to put in other/older parts if they run out of original parts. If you haven't done so, you can look up here with what parts your machine came originally.

TTY · #4 Post by **TTY** » Tue Sep 23, 2008 5:45 pm

The panel is 18 bit: 3 colors@6 bits per color - not 32 bit. Most notebook panels have 6 bits per color. I just checked LG-Philips' offering. They have two panels with 8 bits per color, one is a 17" wide panel and the other one is a 20" wide panel, all their other notebook panels have 6 bits per color. My overview of Samsung notebook panels contains only 6-bit panels.

I also get red halos around clear type fonts in some applications.

Puppy · #5 Post by **Puppy** » Tue Sep 23, 2008 5:55 pm

I don't believe there is real 8 bit notebook panel. All TN panels are 6 bit only and I doubt there are any non-TN based notebook displays these days regardless its size.

Pascal_TTH · #6 Post by **Pascal_TTH** » Tue Sep 23, 2008 6:07 pm

Samsung made the worst panels. I got one of their B$ within my T61p. It was a nightmare : diethering, poor colors, grey black, snowy/grainy white, poor contrast and so on. I have never ever see a so poor panel (except passive TN) !!!

I buy a LG/Philips WUXGA 15.4'' and get the oringal Samsung out.

I wonder how Lenovo or any other manufacturer can use such panels. And btw how samsung dares to sell them !!!

yak · #7 Post by **yak** » Tue Sep 23, 2008 6:55 pm

Thanks guys for your replies. Much appreciated.

Now I see on the ThinkWiki that there are XGA Samsungs in T60, the page just doesn't list the model number.

I would add it if I was sure.

I'll try to stay away from Samsung while looking for a SXGA+ panel.

Anyone having one to sell or wanting to exchange for an almost unused XGA panel (not a single mark on the surface), please PM me.

Is this normal for Samsung TFTs?

Is this normal for Samsung TFTs?

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